{"items":[{"id":8819,"event_id":3886,"slug":"3886-slc-delays","kind":"initial","kind_label":"Initial","evidence":"forecast","evidence_label":"Forecast","evidence_help":"Tailodds' model predicts it. It has not happened.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Model forecasts 48% delay risk for Salt Lake City departures noon–3 PM Friday","body":"Tailodds’ model gives the 36 departures scheduled from Salt Lake City noon–3 PM Friday an average 48% chance of leaving 15+ minutes late. With calm weather the same flights would average 19%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-13T09:58:53.965066Z","time":"2:58 AM","zone":"MST","date":"Nov 13","ago":"55 min ago","full":"Fri Nov 13, 2:58 AM MST","utc_text":"2026-11-13 09:58 UTC"},"source_event":{"utc":"2026-11-13T09:00:00Z","time":"2:00 AM","zone":"MST","date":"Nov 13","ago":"1 h ago","full":"Fri Nov 13, 2:00 AM MST","utc_text":"2026-11-13 09:00 UTC"},"ingested":{"utc":"2026-11-13T09:58:50.141420Z","time":"2:58 AM","zone":"MST","date":"Nov 13","ago":"55 min ago","full":"Fri Nov 13, 2:58 AM MST","utc_text":"2026-11-13 09:58 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"forecast_blocks forecast-blocks-v1","config_version":"2026-10-17.1","model_version":"famB-sd-v4i","corrects_update_id":null,"cursor":"MjAyNi0xMS0xM1QwOTo1ODo1My45NjUwNjYrMDA6MDB8ODgxOQ","forecast":{"p_pct":"48%","expected_cancellations":0.2,"target":"SLC departures noon–3 PM 2026-11-13 (15+ min late)","horizon_h":9.0,"model_version":"famB-sd-v4i","model_changed":false,"calibration":"isotonic (model/train_forecast.py)","n":36,"cycle":{"utc":"2026-11-13T09:00:00Z","time":"2:00 AM","zone":"MST","date":"Nov 13","ago":"1 h ago","full":"Fri Nov 13, 2:00 AM MST","utc_text":"2026-11-13 09:00 UTC"}},"lifecycle":"new","has_correction":false,"has_retraction":false,"update_count":1,"latest_update_id":8819,"status_label":"New","n_match":1,"sources":[{"label":"Tailodds forecast","url":null,"role":"primary","source":"tailodds_forecast"}],"corrections":[]},{"id":8734,"event_id":3852,"slug":"3852-slc-delays","kind":"initial","kind_label":"Initial","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City arrivals running late: 53% reached the gate 15+ min late in the last hour","body":"Of 19 arrivals that landed between 9:52 PM and 10:52 PM MST, 10 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"arrivals","direction_label":"arrivals","published":{"utc":"2026-11-13T05:52:52.729109Z","time":"10:52 PM","zone":"MST","date":"Nov 12","ago":"5 h ago","full":"Thu Nov 12, 10:52 PM MST","utc_text":"2026-11-13 05:52 UTC"},"source_event":{"utc":"2026-11-13T05:52:00Z","time":"10:52 PM","zone":"MST","date":"Nov 12","ago":"5 h ago","full":"Thu Nov 12, 10:52 PM MST","utc_text":"2026-11-13 05:52 UTC"},"ingested":{"utc":"2026-11-13T05:52:52.324058Z","time":"10:52 PM","zone":"MST","date":"Nov 12","ago":"5 h ago","full":"Thu Nov 12, 10:52 PM MST","utc_text":"2026-11-13 05:52 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0xM1QwNTo1Mjo1Mi43MjkxMDkrMDA6MDB8ODczNA","measurement":{"window":"9:52 PM–10:52 PM MST","n":19,"late_n":10,"share_pct":"53%","baseline_pct":"15%","baseline_basis":"US DOT on-time data, last 12 published months, all arrivals","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":16.0},"lifecycle":"new","has_correction":false,"has_retraction":false,"update_count":1,"latest_update_id":8734,"status_label":"New","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[]},{"id":8715,"event_id":3840,"slug":"3840-slc-delays","kind":"recovery","kind_label":"Recovery","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"info","severity_label":"Informational","severity_rank":1,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City arrivals back near normal: 17% late in the last hour","body":"Of 18 arrivals that landed between 9:04 PM and 10:04 PM MST, 3 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 25% for 31 minutes across 16 checks, each with at least 12 flights and current data.","what_changed":"late share 60% at worst → 17% now","airports":["SLC"],"metros":[],"direction":"arrivals","direction_label":"arrivals","published":{"utc":"2026-11-13T05:04:06.948586Z","time":"10:04 PM","zone":"MST","date":"Nov 12","ago":"5 h ago","full":"Thu Nov 12, 10:04 PM MST","utc_text":"2026-11-13 05:04 UTC"},"source_event":{"utc":"2026-11-13T05:04:00Z","time":"10:04 PM","zone":"MST","date":"Nov 12","ago":"5 h ago","full":"Thu Nov 12, 10:04 PM MST","utc_text":"2026-11-13 05:04 UTC"},"ingested":{"utc":"2026-11-13T05:04:06.564840Z","time":"10:04 PM","zone":"MST","date":"Nov 12","ago":"5 h ago","full":"Thu Nov 12, 10:04 PM MST","utc_text":"2026-11-13 05:04 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0xM1QwNTowNDowNi45NDg1ODYrMDA6MDB8ODcxNQ","measurement":{"window":"9:04 PM–10:04 PM MST","n":18,"late_n":3,"share_pct":"17%","baseline_pct":"15%","baseline_basis":"US DOT on-time data, last 12 published months, all arrivals","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":-14.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":8715,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[]},{"id":8681,"event_id":3840,"slug":"3840-slc-delays","kind":"initial","kind_label":"Initial","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City arrivals running late: 56% reached the gate 15+ min late in the last hour","body":"Of 16 arrivals that landed between 8:02 PM and 9:02 PM MST, 9 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"arrivals","direction_label":"arrivals","published":{"utc":"2026-11-13T04:02:53.182896Z","time":"9:02 PM","zone":"MST","date":"Nov 12","ago":"6 h ago","full":"Thu Nov 12, 9:02 PM MST","utc_text":"2026-11-13 04:02 UTC"},"source_event":{"utc":"2026-11-13T04:02:00Z","time":"9:02 PM","zone":"MST","date":"Nov 12","ago":"6 h ago","full":"Thu Nov 12, 9:02 PM MST","utc_text":"2026-11-13 04:02 UTC"},"ingested":{"utc":"2026-11-13T04:02:52.399853Z","time":"9:02 PM","zone":"MST","date":"Nov 12","ago":"6 h ago","full":"Thu Nov 12, 9:02 PM MST","utc_text":"2026-11-13 04:02 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0xM1QwNDowMjo1My4xODI4OTYrMDA6MDB8ODY4MQ","measurement":{"window":"8:02 PM–9:02 PM MST","n":16,"late_n":9,"share_pct":"56%","baseline_pct":"15%","baseline_basis":"US DOT on-time data, last 12 published months, all arrivals","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":20.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":8715,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[],"newer":{"id":8715,"kind":"Recovery","evidence":"observed","evidence_label":"Observed","severity_label":"Informational","headline":"Salt Lake City arrivals back near normal: 17% late in the last hour","published":{"utc":"2026-11-13T05:04:06.948586Z","time":"10:04 PM","zone":"MST","date":"Nov 12","ago":"5 h ago","full":"Thu Nov 12, 10:04 PM MST","utc_text":"2026-11-13 05:04 UTC"}}},{"id":8154,"event_id":3565,"slug":"3565-slc-delays","kind":"recovery","kind_label":"Recovery","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"info","severity_label":"Informational","severity_rank":1,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures back near normal: 9% late in the last hour","body":"Of 22 departures that took off between 9:17 AM and 10:17 AM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 11% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 AM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 21% for 31 minutes across 16 checks, each with at least 12 flights and current data.","what_changed":"late share 58% at worst → 9% now","airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-11T17:17:55.323670Z","time":"10:17 AM","zone":"MST","date":"Nov 11","ago":"41 h ago","full":"Wed Nov 11, 10:17 AM MST","utc_text":"2026-11-11 17:17 UTC"},"source_event":{"utc":"2026-11-11T17:17:00Z","time":"10:17 AM","zone":"MST","date":"Nov 11","ago":"41 h ago","full":"Wed Nov 11, 10:17 AM MST","utc_text":"2026-11-11 17:17 UTC"},"ingested":{"utc":"2026-11-11T17:17:54.817260Z","time":"10:17 AM","zone":"MST","date":"Nov 11","ago":"41 h ago","full":"Wed Nov 11, 10:17 AM MST","utc_text":"2026-11-11 17:17 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0xMVQxNzoxNzo1NS4zMjM2NzArMDA6MDB8ODE1NA","measurement":{"window":"9:17 AM–10:17 AM MST","n":22,"late_n":2,"share_pct":"9%","baseline_pct":"11%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 9 AM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":-5.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":8154,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[]},{"id":8152,"event_id":3565,"slug":"3565-slc-delays","kind":"initial","kind_label":"Initial","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures running late: 54% left 15+ min late in the last hour","body":"Of 13 departures that took off between 8:24 AM and 9:24 AM MST, 7 left at least 15 minutes late. Salt Lake City typically sees 8% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 8 AM hour). Measured by Tailodds from FAA flight data against airline schedules.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-11T16:24:48.247182Z","time":"9:24 AM","zone":"MST","date":"Nov 11","ago":"42 h ago","full":"Wed Nov 11, 9:24 AM MST","utc_text":"2026-11-11 16:24 UTC"},"source_event":{"utc":"2026-11-11T16:24:00Z","time":"9:24 AM","zone":"MST","date":"Nov 11","ago":"42 h ago","full":"Wed Nov 11, 9:24 AM MST","utc_text":"2026-11-11 16:24 UTC"},"ingested":{"utc":"2026-11-11T16:24:47.668222Z","time":"9:24 AM","zone":"MST","date":"Nov 11","ago":"42 h ago","full":"Wed Nov 11, 9:24 AM MST","utc_text":"2026-11-11 16:24 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0xMVQxNjoyNDo0OC4yNDcxODIrMDA6MDB8ODE1Mg","measurement":{"window":"8:24 AM–9:24 AM MST","n":13,"late_n":7,"share_pct":"54%","baseline_pct":"8%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 8 AM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":15.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":8154,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[],"newer":{"id":8154,"kind":"Recovery","evidence":"observed","evidence_label":"Observed","severity_label":"Informational","headline":"Salt Lake City departures back near normal: 9% late in the last hour","published":{"utc":"2026-11-11T17:17:55.323670Z","time":"10:17 AM","zone":"MST","date":"Nov 11","ago":"41 h ago","full":"Wed Nov 11, 10:17 AM MST","utc_text":"2026-11-11 17:17 UTC"}}},{"id":8081,"event_id":3537,"slug":"3537-slc-delays","kind":"resolution","kind_label":"Resolution","evidence":"forecast","evidence_label":"Forecast","evidence_help":"Tailodds' model predicts it. It has not happened.","severity":"info","severity_label":"Informational","severity_rank":1,"event_type":"delay","type_label":"Delay","headline":"Model lowers Salt Lake City departure delay risk noon–3 PM Tuesday to 19%, near normal","body":"Tailodds’ model gives the 38 departures scheduled from Salt Lake City noon–3 PM Tuesday an average 19% chance of leaving 15+ minutes late. With calm weather the same flights would average 13%. From the 3:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.","what_changed":"41% → 19%; calm-weather level 13%","airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-10T11:27:18.128576Z","time":"4:27 AM","zone":"MST","date":"Nov 10","ago":"2 days ago","full":"Tue Nov 10, 4:27 AM MST","utc_text":"2026-11-10 11:27 UTC"},"source_event":{"utc":"2026-11-10T10:00:00Z","time":"3:00 AM","zone":"MST","date":"Nov 10","ago":"3 days ago","full":"Tue Nov 10, 3:00 AM MST","utc_text":"2026-11-10 10:00 UTC"},"ingested":{"utc":"2026-11-10T11:27:15.925864Z","time":"4:27 AM","zone":"MST","date":"Nov 10","ago":"2 days ago","full":"Tue Nov 10, 4:27 AM MST","utc_text":"2026-11-10 11:27 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"forecast_blocks forecast-blocks-v1","config_version":"2026-10-17.1","model_version":"famB-sd-v4i","corrects_update_id":null,"cursor":"MjAyNi0xMS0xMFQxMToyNzoxOC4xMjg1NzYrMDA6MDB8ODA4MQ","forecast":{"p_pct":"19%","expected_cancellations":0.1,"target":"SLC departures noon–3 PM 2026-11-10 (15+ min late)","horizon_h":7.5,"model_version":"famB-sd-v4i","model_changed":false,"calibration":"isotonic (model/train_forecast.py)","n":38,"cycle":{"utc":"2026-11-10T10:00:00Z","time":"3:00 AM","zone":"MST","date":"Nov 10","ago":"3 days ago","full":"Tue Nov 10, 3:00 AM MST","utc_text":"2026-11-10 10:00 UTC"}},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":8081,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds forecast","url":null,"role":"primary","source":"tailodds_forecast"}],"corrections":[]},{"id":8075,"event_id":3537,"slug":"3537-slc-delays","kind":"initial","kind_label":"Initial","evidence":"forecast","evidence_label":"Forecast","evidence_help":"Tailodds' model predicts it. It has not happened.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Model forecasts 41% delay risk for Salt Lake City departures noon–3 PM Tuesday","body":"Tailodds’ model gives the 38 departures scheduled from Salt Lake City noon–3 PM Tuesday an average 41% chance of leaving 15+ minutes late. With calm weather the same flights would average 13%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-10T10:06:08.581122Z","time":"3:06 AM","zone":"MST","date":"Nov 10","ago":"3 days ago","full":"Tue Nov 10, 3:06 AM MST","utc_text":"2026-11-10 10:06 UTC"},"source_event":{"utc":"2026-11-10T09:00:00Z","time":"2:00 AM","zone":"MST","date":"Nov 10","ago":"3 days ago","full":"Tue Nov 10, 2:00 AM MST","utc_text":"2026-11-10 09:00 UTC"},"ingested":{"utc":"2026-11-10T10:05:59.273360Z","time":"3:05 AM","zone":"MST","date":"Nov 10","ago":"3 days ago","full":"Tue Nov 10, 3:05 AM MST","utc_text":"2026-11-10 10:05 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"forecast_blocks forecast-blocks-v1","config_version":"2026-10-17.1","model_version":"famB-sd-v4i","corrects_update_id":null,"cursor":"MjAyNi0xMS0xMFQxMDowNjowOC41ODExMjIrMDA6MDB8ODA3NQ","forecast":{"p_pct":"41%","expected_cancellations":0.2,"target":"SLC departures noon–3 PM 2026-11-10 (15+ min late)","horizon_h":8.9,"model_version":"famB-sd-v4i","model_changed":false,"calibration":"isotonic (model/train_forecast.py)","n":38,"cycle":{"utc":"2026-11-10T09:00:00Z","time":"2:00 AM","zone":"MST","date":"Nov 10","ago":"3 days ago","full":"Tue Nov 10, 2:00 AM MST","utc_text":"2026-11-10 09:00 UTC"}},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":8081,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds forecast","url":null,"role":"primary","source":"tailodds_forecast"}],"corrections":[],"newer":{"id":8081,"kind":"Resolution","evidence":"forecast","evidence_label":"Forecast","severity_label":"Informational","headline":"Model lowers Salt Lake City departure delay risk noon–3 PM Tuesday to 19%, near normal","published":{"utc":"2026-11-10T11:27:18.128576Z","time":"4:27 AM","zone":"MST","date":"Nov 10","ago":"2 days ago","full":"Tue Nov 10, 4:27 AM MST","utc_text":"2026-11-10 11:27 UTC"}}},{"id":7942,"event_id":3481,"slug":"3481-slc-delays","kind":"recovery","kind_label":"Recovery","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"info","severity_label":"Informational","severity_rank":1,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City arrivals back near normal: 0% late in the last hour","body":"Of 24 arrivals that landed between 1:40 PM and 2:40 PM MST, 0 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 25% for 31 minutes across 16 checks, each with at least 12 flights and current data.","what_changed":"late share 54% at worst → 0% now","airports":["SLC"],"metros":[],"direction":"arrivals","direction_label":"arrivals","published":{"utc":"2026-11-09T21:40:52.936627Z","time":"2:40 PM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 2:40 PM MST","utc_text":"2026-11-09 21:40 UTC"},"source_event":{"utc":"2026-11-09T21:40:00Z","time":"2:40 PM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 2:40 PM MST","utc_text":"2026-11-09 21:40 UTC"},"ingested":{"utc":"2026-11-09T21:40:51.753843Z","time":"2:40 PM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 2:40 PM MST","utc_text":"2026-11-09 21:40 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wOVQyMTo0MDo1Mi45MzY2MjcrMDA6MDB8Nzk0Mg","measurement":{"window":"1:40 PM–2:40 PM MST","n":24,"late_n":0,"share_pct":"0%","baseline_pct":"15%","baseline_basis":"US DOT on-time data, last 12 published months, all arrivals","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":-14.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7942,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[]},{"id":7928,"event_id":3481,"slug":"3481-slc-delays","kind":"initial","kind_label":"Initial","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City arrivals running late: 54% reached the gate 15+ min late in the last hour","body":"Of 13 arrivals that landed between 12:42 PM and 1:42 PM MST, 7 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"arrivals","direction_label":"arrivals","published":{"utc":"2026-11-09T20:42:38.423456Z","time":"1:42 PM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 1:42 PM MST","utc_text":"2026-11-09 20:42 UTC"},"source_event":{"utc":"2026-11-09T20:42:00Z","time":"1:42 PM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 1:42 PM MST","utc_text":"2026-11-09 20:42 UTC"},"ingested":{"utc":"2026-11-09T20:42:36.827423Z","time":"1:42 PM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 1:42 PM MST","utc_text":"2026-11-09 20:42 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wOVQyMDo0MjozOC40MjM0NTYrMDA6MDB8NzkyOA","measurement":{"window":"12:42 PM–1:42 PM MST","n":13,"late_n":7,"share_pct":"54%","baseline_pct":"15%","baseline_basis":"US DOT on-time data, last 12 published months, all arrivals","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":16.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7942,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[],"newer":{"id":7942,"kind":"Recovery","evidence":"observed","evidence_label":"Observed","severity_label":"Informational","headline":"Salt Lake City arrivals back near normal: 0% late in the last hour","published":{"utc":"2026-11-09T21:40:52.936627Z","time":"2:40 PM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 2:40 PM MST","utc_text":"2026-11-09 21:40 UTC"}}},{"id":7880,"event_id":3439,"slug":"3439-slc-delays","kind":"recovery","kind_label":"Recovery","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"info","severity_label":"Informational","severity_rank":1,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures back near normal: 7% late in the last hour","body":"Of 28 departures that took off between 9:29 AM and 10:29 AM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 11% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 AM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 21% for 31 minutes across 16 checks, each with at least 12 flights and current data.","what_changed":"late share 50% at worst → 7% now","airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-09T17:29:08.014833Z","time":"10:29 AM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 10:29 AM MST","utc_text":"2026-11-09 17:29 UTC"},"source_event":{"utc":"2026-11-09T17:29:00Z","time":"10:29 AM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 10:29 AM MST","utc_text":"2026-11-09 17:29 UTC"},"ingested":{"utc":"2026-11-09T17:29:07.295717Z","time":"10:29 AM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 10:29 AM MST","utc_text":"2026-11-09 17:29 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wOVQxNzoyOTowOC4wMTQ4MzMrMDA6MDB8Nzg4MA","measurement":{"window":"9:29 AM–10:29 AM MST","n":28,"late_n":2,"share_pct":"7%","baseline_pct":"11%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 9 AM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":-4.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7880,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[]},{"id":7871,"event_id":3439,"slug":"3439-slc-delays","kind":"initial","kind_label":"Initial","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures running late: 50% left 15+ min late in the last hour","body":"Of 14 departures that took off between 8:26 AM and 9:26 AM MST, 7 left at least 15 minutes late. Salt Lake City typically sees 8% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 8 AM hour). Measured by Tailodds from FAA flight data against airline schedules.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-09T16:26:38.390643Z","time":"9:26 AM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 9:26 AM MST","utc_text":"2026-11-09 16:26 UTC"},"source_event":{"utc":"2026-11-09T16:26:00Z","time":"9:26 AM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 9:26 AM MST","utc_text":"2026-11-09 16:26 UTC"},"ingested":{"utc":"2026-11-09T16:26:36.908514Z","time":"9:26 AM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 9:26 AM MST","utc_text":"2026-11-09 16:26 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wOVQxNjoyNjozOC4zOTA2NDMrMDA6MDB8Nzg3MQ","measurement":{"window":"8:26 AM–9:26 AM MST","n":14,"late_n":7,"share_pct":"50%","baseline_pct":"8%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 8 AM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":17.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7880,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[],"newer":{"id":7880,"kind":"Recovery","evidence":"observed","evidence_label":"Observed","severity_label":"Informational","headline":"Salt Lake City departures back near normal: 7% late in the last hour","published":{"utc":"2026-11-09T17:29:08.014833Z","time":"10:29 AM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 10:29 AM MST","utc_text":"2026-11-09 17:29 UTC"}}},{"id":7853,"event_id":3434,"slug":"3434-slc-delays","kind":"resolution","kind_label":"Resolution","evidence":"forecast","evidence_label":"Forecast","evidence_help":"Tailodds' model predicts it. It has not happened.","severity":"info","severity_label":"Informational","severity_rank":1,"event_type":"delay","type_label":"Delay","headline":"Model lowers Salt Lake City departure delay risk noon–3 PM Monday to 24%, near normal","body":"Tailodds’ model gives the 36 departures scheduled from Salt Lake City noon–3 PM Monday an average 24% chance of leaving 15+ minutes late. With calm weather the same flights would average 17%. From the 3:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.","what_changed":"49% → 24%; calm-weather level 17%","airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-09T11:27:59.739517Z","time":"4:27 AM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 4:27 AM MST","utc_text":"2026-11-09 11:27 UTC"},"source_event":{"utc":"2026-11-09T10:00:00Z","time":"3:00 AM","zone":"MST","date":"Nov 9","ago":"4 days ago","full":"Mon Nov 9, 3:00 AM MST","utc_text":"2026-11-09 10:00 UTC"},"ingested":{"utc":"2026-11-09T11:27:58.965876Z","time":"4:27 AM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 4:27 AM MST","utc_text":"2026-11-09 11:27 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"forecast_blocks forecast-blocks-v1","config_version":"2026-10-17.1","model_version":"famB-sd-v4i","corrects_update_id":null,"cursor":"MjAyNi0xMS0wOVQxMToyNzo1OS43Mzk1MTcrMDA6MDB8Nzg1Mw","forecast":{"p_pct":"24%","expected_cancellations":0.1,"target":"SLC departures noon–3 PM 2026-11-09 (15+ min late)","horizon_h":7.5,"model_version":"famB-sd-v4i","model_changed":false,"calibration":"isotonic (model/train_forecast.py)","n":36,"cycle":{"utc":"2026-11-09T10:00:00Z","time":"3:00 AM","zone":"MST","date":"Nov 9","ago":"4 days ago","full":"Mon Nov 9, 3:00 AM MST","utc_text":"2026-11-09 10:00 UTC"}},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7853,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds forecast","url":null,"role":"primary","source":"tailodds_forecast"}],"corrections":[]},{"id":7848,"event_id":3434,"slug":"3434-slc-delays","kind":"initial","kind_label":"Initial","evidence":"forecast","evidence_label":"Forecast","evidence_help":"Tailodds' model predicts it. It has not happened.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Model forecasts 49% delay risk for Salt Lake City departures noon–3 PM Monday","body":"Tailodds’ model gives the 36 departures scheduled from Salt Lake City noon–3 PM Monday an average 49% chance of leaving 15+ minutes late. With calm weather the same flights would average 17%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-09T10:03:19.223518Z","time":"3:03 AM","zone":"MST","date":"Nov 9","ago":"4 days ago","full":"Mon Nov 9, 3:03 AM MST","utc_text":"2026-11-09 10:03 UTC"},"source_event":{"utc":"2026-11-09T09:00:00Z","time":"2:00 AM","zone":"MST","date":"Nov 9","ago":"4 days ago","full":"Mon Nov 9, 2:00 AM MST","utc_text":"2026-11-09 09:00 UTC"},"ingested":{"utc":"2026-11-09T10:03:15.392724Z","time":"3:03 AM","zone":"MST","date":"Nov 9","ago":"4 days ago","full":"Mon Nov 9, 3:03 AM MST","utc_text":"2026-11-09 10:03 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"forecast_blocks forecast-blocks-v1","config_version":"2026-10-17.1","model_version":"famB-sd-v4i","corrects_update_id":null,"cursor":"MjAyNi0xMS0wOVQxMDowMzoxOS4yMjM1MTgrMDA6MDB8Nzg0OA","forecast":{"p_pct":"49%","expected_cancellations":0.2,"target":"SLC departures noon–3 PM 2026-11-09 (15+ min late)","horizon_h":8.9,"model_version":"famB-sd-v4i","model_changed":false,"calibration":"isotonic (model/train_forecast.py)","n":36,"cycle":{"utc":"2026-11-09T09:00:00Z","time":"2:00 AM","zone":"MST","date":"Nov 9","ago":"4 days ago","full":"Mon Nov 9, 2:00 AM MST","utc_text":"2026-11-09 09:00 UTC"}},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7853,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds forecast","url":null,"role":"primary","source":"tailodds_forecast"}],"corrections":[],"newer":{"id":7853,"kind":"Resolution","evidence":"forecast","evidence_label":"Forecast","severity_label":"Informational","headline":"Model lowers Salt Lake City departure delay risk noon–3 PM Monday to 24%, near normal","published":{"utc":"2026-11-09T11:27:59.739517Z","time":"4:27 AM","zone":"MST","date":"Nov 9","ago":"3 days ago","full":"Mon Nov 9, 4:27 AM MST","utc_text":"2026-11-09 11:27 UTC"}}},{"id":7755,"event_id":3379,"slug":"3379-slc-delays","kind":"recovery","kind_label":"Recovery","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"info","severity_label":"Informational","severity_rank":1,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures back near normal: 14% late in the last hour","body":"Of 28 departures that took off between 5:11 PM and 6:11 PM MST, 4 left at least 15 minutes late. Salt Lake City typically sees 19% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 5 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 29% for 31 minutes across 16 checks, each with at least 12 flights and current data.","what_changed":"late share 58% at worst → 14% now","airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-09T01:11:17.340103Z","time":"6:11 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 6:11 PM MST","utc_text":"2026-11-09 01:11 UTC"},"source_event":{"utc":"2026-11-09T01:11:00Z","time":"6:11 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 6:11 PM MST","utc_text":"2026-11-09 01:11 UTC"},"ingested":{"utc":"2026-11-09T01:11:15.658179Z","time":"6:11 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 6:11 PM MST","utc_text":"2026-11-09 01:11 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wOVQwMToxMToxNy4zNDAxMDMrMDA6MDB8Nzc1NQ","measurement":{"window":"5:11 PM–6:11 PM MST","n":28,"late_n":4,"share_pct":"14%","baseline_pct":"19%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 5 PM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":-1.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7755,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[]},{"id":7745,"event_id":3379,"slug":"3379-slc-delays","kind":"initial","kind_label":"Initial","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures running late: 58% left 15+ min late in the last hour","body":"Of 12 departures that took off between 4:23 PM and 5:23 PM MST, 7 left at least 15 minutes late. Salt Lake City typically sees 22% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 4 PM hour). Measured by Tailodds from FAA flight data against airline schedules.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-09T00:23:36.635518Z","time":"5:23 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 5:23 PM MST","utc_text":"2026-11-09 00:23 UTC"},"source_event":{"utc":"2026-11-09T00:23:00Z","time":"5:23 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 5:23 PM MST","utc_text":"2026-11-09 00:23 UTC"},"ingested":{"utc":"2026-11-09T00:23:35.404187Z","time":"5:23 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 5:23 PM MST","utc_text":"2026-11-09 00:23 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wOVQwMDoyMzozNi42MzU1MTgrMDA6MDB8Nzc0NQ","measurement":{"window":"4:23 PM–5:23 PM MST","n":12,"late_n":7,"share_pct":"58%","baseline_pct":"22%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 4 PM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":23.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7755,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[],"newer":{"id":7755,"kind":"Recovery","evidence":"observed","evidence_label":"Observed","severity_label":"Informational","headline":"Salt Lake City departures back near normal: 14% late in the last hour","published":{"utc":"2026-11-09T01:11:17.340103Z","time":"6:11 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 6:11 PM MST","utc_text":"2026-11-09 01:11 UTC"}}},{"id":7719,"event_id":3358,"slug":"3358-slc-delays","kind":"recovery","kind_label":"Recovery","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"info","severity_label":"Informational","severity_rank":1,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures back near normal: 0% late in the last hour","body":"Of 18 departures that took off between 2:49 PM and 3:49 PM MST, 0 left at least 15 minutes late. Salt Lake City typically sees 16% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 3 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 26% for 31 minutes across 16 checks, each with at least 12 flights and current data.","what_changed":"late share 56% at worst → 0% now","airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-08T22:49:58.234358Z","time":"3:49 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 3:49 PM MST","utc_text":"2026-11-08 22:49 UTC"},"source_event":{"utc":"2026-11-08T22:49:00Z","time":"3:49 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 3:49 PM MST","utc_text":"2026-11-08 22:49 UTC"},"ingested":{"utc":"2026-11-08T22:49:57.479627Z","time":"3:49 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 3:49 PM MST","utc_text":"2026-11-08 22:49 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wOFQyMjo0OTo1OC4yMzQzNTgrMDA6MDB8NzcxOQ","measurement":{"window":"2:49 PM–3:49 PM MST","n":18,"late_n":0,"share_pct":"0%","baseline_pct":"16%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 3 PM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":-6.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7719,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[]},{"id":7709,"event_id":3358,"slug":"3358-slc-delays","kind":"initial","kind_label":"Initial","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures running late: 43% left 15+ min late in the last hour","body":"Of 23 departures that took off between 1:33 PM and 2:33 PM MST, 10 left at least 15 minutes late. Salt Lake City typically sees 23% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 2 PM hour). Measured by Tailodds from FAA flight data against airline schedules.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-08T21:33:21.421818Z","time":"2:33 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 2:33 PM MST","utc_text":"2026-11-08 21:33 UTC"},"source_event":{"utc":"2026-11-08T21:33:00Z","time":"2:33 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 2:33 PM MST","utc_text":"2026-11-08 21:33 UTC"},"ingested":{"utc":"2026-11-08T21:33:20.249283Z","time":"2:33 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 2:33 PM MST","utc_text":"2026-11-08 21:33 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wOFQyMTozMzoyMS40MjE4MTgrMDA6MDB8NzcwOQ","measurement":{"window":"1:33 PM–2:33 PM MST","n":23,"late_n":10,"share_pct":"43%","baseline_pct":"23%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 2 PM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":11.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7719,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[],"newer":{"id":7719,"kind":"Recovery","evidence":"observed","evidence_label":"Observed","severity_label":"Informational","headline":"Salt Lake City departures back near normal: 0% late in the last hour","published":{"utc":"2026-11-08T22:49:58.234358Z","time":"3:49 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 3:49 PM MST","utc_text":"2026-11-08 22:49 UTC"}}},{"id":7705,"event_id":3345,"slug":"3345-slc-delays","kind":"recovery","kind_label":"Recovery","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"info","severity_label":"Informational","severity_rank":1,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures back near normal: 12% late in the last hour","body":"Of 16 departures that took off between 1:18 PM and 2:18 PM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 16% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 1 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 26% for 31 minutes across 16 checks, each with at least 12 flights and current data.","what_changed":"late share 47% at worst → 12% now","airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-08T21:18:52.309529Z","time":"2:18 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 2:18 PM MST","utc_text":"2026-11-08 21:18 UTC"},"source_event":{"utc":"2026-11-08T21:18:00Z","time":"2:18 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 2:18 PM MST","utc_text":"2026-11-08 21:18 UTC"},"ingested":{"utc":"2026-11-08T21:18:51.249759Z","time":"2:18 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 2:18 PM MST","utc_text":"2026-11-08 21:18 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wOFQyMToxODo1Mi4zMDk1MjkrMDA6MDB8NzcwNQ","measurement":{"window":"1:18 PM–2:18 PM MST","n":16,"late_n":2,"share_pct":"12%","baseline_pct":"16%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 1 PM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":6.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7705,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[]},{"id":7686,"event_id":3345,"slug":"3345-slc-delays","kind":"initial","kind_label":"Initial","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures running late: 47% left 15+ min late in the last hour","body":"Of 19 departures that took off between 11:45 AM and 12:45 PM MST, 9 left at least 15 minutes late. Salt Lake City typically sees 18% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 12 PM hour). Measured by Tailodds from FAA flight data against airline schedules.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-08T19:45:36.422806Z","time":"12:45 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 12:45 PM MST","utc_text":"2026-11-08 19:45 UTC"},"source_event":{"utc":"2026-11-08T19:45:00Z","time":"12:45 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 12:45 PM MST","utc_text":"2026-11-08 19:45 UTC"},"ingested":{"utc":"2026-11-08T19:45:34.947654Z","time":"12:45 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 12:45 PM MST","utc_text":"2026-11-08 19:45 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wOFQxOTo0NTozNi40MjI4MDYrMDA6MDB8NzY4Ng","measurement":{"window":"11:45 AM–12:45 PM MST","n":19,"late_n":9,"share_pct":"47%","baseline_pct":"18%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 12 PM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":9.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7705,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[],"newer":{"id":7705,"kind":"Recovery","evidence":"observed","evidence_label":"Observed","severity_label":"Informational","headline":"Salt Lake City departures back near normal: 12% late in the last hour","published":{"utc":"2026-11-08T21:18:52.309529Z","time":"2:18 PM","zone":"MST","date":"Nov 8","ago":"4 days ago","full":"Sun Nov 8, 2:18 PM MST","utc_text":"2026-11-08 21:18 UTC"}}},{"id":7522,"event_id":3271,"slug":"3271-slc-delays","kind":"resolution","kind_label":"Resolution","evidence":"forecast","evidence_label":"Forecast","evidence_help":"Tailodds' model predicts it. It has not happened.","severity":"info","severity_label":"Informational","severity_rank":1,"event_type":"delay","type_label":"Delay","headline":"Model lowers Salt Lake City departure delay risk noon–3 PM Saturday to 24%, near normal","body":"Tailodds’ model gives the 41 departures scheduled from Salt Lake City noon–3 PM Saturday an average 24% chance of leaving 15+ minutes late. With calm weather the same flights would average 20%. From the 3:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.","what_changed":"44% → 24%; calm-weather level 20%","airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-07T10:59:42.985356Z","time":"3:59 AM","zone":"MST","date":"Nov 7","ago":"5 days ago","full":"Sat Nov 7, 3:59 AM MST","utc_text":"2026-11-07 10:59 UTC"},"source_event":{"utc":"2026-11-07T10:00:00Z","time":"3:00 AM","zone":"MST","date":"Nov 7","ago":"6 days ago","full":"Sat Nov 7, 3:00 AM MST","utc_text":"2026-11-07 10:00 UTC"},"ingested":{"utc":"2026-11-07T10:59:36.897287Z","time":"3:59 AM","zone":"MST","date":"Nov 7","ago":"5 days ago","full":"Sat Nov 7, 3:59 AM MST","utc_text":"2026-11-07 10:59 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"forecast_blocks forecast-blocks-v1","config_version":"2026-10-17.1","model_version":"famB-sd-v4i","corrects_update_id":null,"cursor":"MjAyNi0xMS0wN1QxMDo1OTo0Mi45ODUzNTYrMDA6MDB8NzUyMg","forecast":{"p_pct":"24%","expected_cancellations":0.1,"target":"SLC departures noon–3 PM 2026-11-07 (15+ min late)","horizon_h":8.0,"model_version":"famB-sd-v4i","model_changed":false,"calibration":"isotonic (model/train_forecast.py)","n":41,"cycle":{"utc":"2026-11-07T10:00:00Z","time":"3:00 AM","zone":"MST","date":"Nov 7","ago":"6 days ago","full":"Sat Nov 7, 3:00 AM MST","utc_text":"2026-11-07 10:00 UTC"}},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7522,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds forecast","url":null,"role":"primary","source":"tailodds_forecast"}],"corrections":[]},{"id":7510,"event_id":3271,"slug":"3271-slc-delays","kind":"initial","kind_label":"Initial","evidence":"forecast","evidence_label":"Forecast","evidence_help":"Tailodds' model predicts it. It has not happened.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Model forecasts 44% delay risk for Salt Lake City departures noon–3 PM Saturday","body":"Tailodds’ model gives the 41 departures scheduled from Salt Lake City noon–3 PM Saturday an average 44% chance of leaving 15+ minutes late. With calm weather the same flights would average 20%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-07T09:57:51.338478Z","time":"2:57 AM","zone":"MST","date":"Nov 7","ago":"6 days ago","full":"Sat Nov 7, 2:57 AM MST","utc_text":"2026-11-07 09:57 UTC"},"source_event":{"utc":"2026-11-07T09:00:00Z","time":"2:00 AM","zone":"MST","date":"Nov 7","ago":"6 days ago","full":"Sat Nov 7, 2:00 AM MST","utc_text":"2026-11-07 09:00 UTC"},"ingested":{"utc":"2026-11-07T09:57:49.933553Z","time":"2:57 AM","zone":"MST","date":"Nov 7","ago":"6 days ago","full":"Sat Nov 7, 2:57 AM MST","utc_text":"2026-11-07 09:57 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"forecast_blocks forecast-blocks-v1","config_version":"2026-10-17.1","model_version":"famB-sd-v4i","corrects_update_id":null,"cursor":"MjAyNi0xMS0wN1QwOTo1Nzo1MS4zMzg0NzgrMDA6MDB8NzUxMA","forecast":{"p_pct":"44%","expected_cancellations":0.2,"target":"SLC departures noon–3 PM 2026-11-07 (15+ min late)","horizon_h":9.0,"model_version":"famB-sd-v4i","model_changed":false,"calibration":"isotonic (model/train_forecast.py)","n":41,"cycle":{"utc":"2026-11-07T09:00:00Z","time":"2:00 AM","zone":"MST","date":"Nov 7","ago":"6 days ago","full":"Sat Nov 7, 2:00 AM MST","utc_text":"2026-11-07 09:00 UTC"}},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7522,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds forecast","url":null,"role":"primary","source":"tailodds_forecast"}],"corrections":[],"newer":{"id":7522,"kind":"Resolution","evidence":"forecast","evidence_label":"Forecast","severity_label":"Informational","headline":"Model lowers Salt Lake City departure delay risk noon–3 PM Saturday to 24%, near normal","published":{"utc":"2026-11-07T10:59:42.985356Z","time":"3:59 AM","zone":"MST","date":"Nov 7","ago":"5 days ago","full":"Sat Nov 7, 3:59 AM MST","utc_text":"2026-11-07 10:59 UTC"}}},{"id":7460,"event_id":3241,"slug":"3241-slc-delays","kind":"initial","kind_label":"Initial","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures running late: 50% left 15+ min late in the last hour","body":"Of 16 departures that took off between 9:32 PM and 10:32 PM MST, 8 left at least 15 minutes late. Salt Lake City typically sees 14% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 10 PM hour). Measured by Tailodds from FAA flight data against airline schedules.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-07T05:32:39.997140Z","time":"10:32 PM","zone":"MST","date":"Nov 6","ago":"6 days ago","full":"Fri Nov 6, 10:32 PM MST","utc_text":"2026-11-07 05:32 UTC"},"source_event":{"utc":"2026-11-07T05:32:00Z","time":"10:32 PM","zone":"MST","date":"Nov 6","ago":"6 days ago","full":"Fri Nov 6, 10:32 PM MST","utc_text":"2026-11-07 05:32 UTC"},"ingested":{"utc":"2026-11-07T05:32:39.688019Z","time":"10:32 PM","zone":"MST","date":"Nov 6","ago":"6 days ago","full":"Fri Nov 6, 10:32 PM MST","utc_text":"2026-11-07 05:32 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wN1QwNTozMjozOS45OTcxNDArMDA6MDB8NzQ2MA","measurement":{"window":"9:32 PM–10:32 PM MST","n":16,"late_n":8,"share_pct":"50%","baseline_pct":"14%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 10 PM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":15.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":1,"latest_update_id":7460,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[]},{"id":7248,"event_id":3128,"slug":"3128-slc-delays","kind":"recovery","kind_label":"Recovery","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"info","severity_label":"Informational","severity_rank":1,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures back near normal: 8% late in the last hour","body":"Of 26 departures that took off between 2:53 PM and 3:53 PM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 16% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 3 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 26% for 31 minutes across 16 checks, each with at least 12 flights and current data.","what_changed":"late share 67% at worst → 8% now","airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-06T22:53:55.711421Z","time":"3:53 PM","zone":"MST","date":"Nov 6","ago":"6 days ago","full":"Fri Nov 6, 3:53 PM MST","utc_text":"2026-11-06 22:53 UTC"},"source_event":{"utc":"2026-11-06T22:53:00Z","time":"3:53 PM","zone":"MST","date":"Nov 6","ago":"6 days ago","full":"Fri Nov 6, 3:53 PM MST","utc_text":"2026-11-06 22:53 UTC"},"ingested":{"utc":"2026-11-06T22:53:55.186073Z","time":"3:53 PM","zone":"MST","date":"Nov 6","ago":"6 days ago","full":"Fri Nov 6, 3:53 PM MST","utc_text":"2026-11-06 22:53 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wNlQyMjo1Mzo1NS43MTE0MjErMDA6MDB8NzI0OA","measurement":{"window":"2:53 PM–3:53 PM MST","n":26,"late_n":2,"share_pct":"8%","baseline_pct":"16%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 3 PM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":-4.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7248,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[]},{"id":7115,"event_id":3128,"slug":"3128-slc-delays","kind":"initial","kind_label":"Initial","evidence":"observed","evidence_label":"Observed","evidence_help":"Tailodds measured a change in actual operations.","severity":"significant","severity_label":"Significant","severity_rank":2,"event_type":"delay","type_label":"Delay","headline":"Salt Lake City departures running late: 50% left 15+ min late in the last hour","body":"Of 18 departures that took off between 11:41 AM and 12:41 PM MST, 9 left at least 15 minutes late. Salt Lake City typically sees 18% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 12 PM hour). Measured by Tailodds from FAA flight data against airline schedules.","what_changed":null,"airports":["SLC"],"metros":[],"direction":"departures","direction_label":"departures","published":{"utc":"2026-11-06T19:41:41.281576Z","time":"12:41 PM","zone":"MST","date":"Nov 6","ago":"6 days ago","full":"Fri Nov 6, 12:41 PM MST","utc_text":"2026-11-06 19:41 UTC"},"source_event":{"utc":"2026-11-06T19:41:00Z","time":"12:41 PM","zone":"MST","date":"Nov 6","ago":"6 days ago","full":"Fri Nov 6, 12:41 PM MST","utc_text":"2026-11-06 19:41 UTC"},"ingested":{"utc":"2026-11-06T19:41:40.761485Z","time":"12:41 PM","zone":"MST","date":"Nov 6","ago":"6 days ago","full":"Fri Nov 6, 12:41 PM MST","utc_text":"2026-11-06 19:41 UTC"},"historical":false,"simulated":false,"writer":"template-v1","detector":"observed_ops observed-ops-v1","config_version":"2026-10-17.1","model_version":null,"corrects_update_id":null,"cursor":"MjAyNi0xMS0wNlQxOTo0MTo0MS4yODE1NzYrMDA6MDB8NzExNQ","measurement":{"window":"11:41 AM–12:41 PM MST","n":18,"late_n":9,"share_pct":"50%","baseline_pct":"18%","baseline_basis":"US DOT on-time data, last 12 published months, departures in the 12 PM hour","method":"FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)","median_delay_min":24.0},"lifecycle":"resolved","has_correction":false,"has_retraction":false,"update_count":2,"latest_update_id":7248,"status_label":"Resolved","n_match":1,"sources":[{"label":"Tailodds measurement of FAA flight data against airline schedules","url":null,"role":"primary","source":"tailodds_observed"}],"corrections":[],"newer":{"id":7248,"kind":"Recovery","evidence":"observed","evidence_label":"Observed","severity_label":"Informational","headline":"Salt Lake City departures back near normal: 8% late in the last hour","published":{"utc":"2026-11-06T22:53:55.711421Z","time":"3:53 PM","zone":"MST","date":"Nov 6","ago":"6 days ago","full":"Fri Nov 6, 3:53 PM MST","utc_text":"2026-11-06 22:53 UTC"}}}],"next_cursor":"MjAyNi0xMS0wNlQxOTo0MTo0MS4yODE1NzYrMDA6MDB8NzExNQ","top_cursor":"MjAyNi0xMS0xM1QwOTo1ODo1My45NjUwNjYrMDA6MDB8ODgxOQ","flight_routes":null,"html":["\n\n\n<article class=\"wi sev-significant\" data-id=\"8819\" data-event=\"3886\" data-cursor=\"MjAyNi0xMS0xM1QwOTo1ODo1My45NjUwNjYrMDA6MDB8ODgxOQ\" aria-labelledby=\"wi-h-8819\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-13T09:58:53.965066Z\" title=\"2026-11-13 09:58 UTC · Fri Nov 13, 2:58 AM MST\">2:58 AM</time>\n    <span class=\"wi-z\">MST, Nov 13</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-13T09:58:53.965066Z\">55 min ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-forecast\" title=\"Tailodds&#39; model predicts it. It has not happened.\"><svg aria-hidden=\"true\"><use href=\"#wi-fc\"/></svg>Forecast 48%</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-new\" title=\"The event's current status\">New</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-8819\"><a href=\"/wire/events/3886-slc-delays#u-8819\">Model forecasts 48% delay risk for Salt Lake City departures noon–3 PM Friday</a></h3>\n    \n    \n    <p class=\"wi-body\">Tailodds’ model gives the 36 departures scheduled from Salt Lake City noon–3 PM Friday an average 48% chance of leaving 15+ minutes late. With calm weather the same flights would average 19%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.</p>\n    \n    <p class=\"wi-facts\"><span>Probability <b>48%</b></span><span>Horizon <b>9.0 h</b></span><span>Model <b class=\"mono\">famB-sd-v4i</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds forecast</span>\n      <a href=\"/wire/events/3886-slc-delays#u-8819\" data-act=\"open\">Timeline (1)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3886\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3886-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"8734\" data-event=\"3852\" data-cursor=\"MjAyNi0xMS0xM1QwNTo1Mjo1Mi43MjkxMDkrMDA6MDB8ODczNA\" aria-labelledby=\"wi-h-8734\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-13T05:52:52.729109Z\" title=\"2026-11-13 05:52 UTC · Thu Nov 12, 10:52 PM MST\">10:52 PM</time>\n    <span class=\"wi-z\">MST, Nov 12</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-13T05:52:52.729109Z\">5 h ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-new\" title=\"The event's current status\">New</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">arrivals</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-8734\"><a href=\"/wire/events/3852-slc-delays#u-8734\">Salt Lake City arrivals running late: 53% reached the gate 15+ min late in the last hour</a></h3>\n    \n    \n    <p class=\"wi-body\">Of 19 arrivals that landed between 9:52 PM and 10:52 PM MST, 10 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>9:52 PM–10:52 PM MST</b></span><span>Sample <b>19 flights</b></span><span>Late <b>53%</b></span><span>Typical <b>15%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3852-slc-delays#u-8734\" data-act=\"open\">Timeline (1)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3852\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3852-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-info\" data-id=\"8715\" data-event=\"3840\" data-cursor=\"MjAyNi0xMS0xM1QwNTowNDowNi45NDg1ODYrMDA6MDB8ODcxNQ\" aria-labelledby=\"wi-h-8715\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-13T05:04:06.948586Z\" title=\"2026-11-13 05:04 UTC · Thu Nov 12, 10:04 PM MST\">10:04 PM</time>\n    <span class=\"wi-z\">MST, Nov 12</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-13T05:04:06.948586Z\">5 h ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-info\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Informational</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      <span class=\"wi-kind\">Recovery</span>\n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">arrivals</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-8715\"><a href=\"/wire/events/3840-slc-delays#u-8715\">Salt Lake City arrivals back near normal: 17% late in the last hour</a></h3>\n    <p class=\"wi-changed\"><b>What changed:</b> late share 60% at worst → 17% now</p>\n    \n    <p class=\"wi-body\">Of 18 arrivals that landed between 9:04 PM and 10:04 PM MST, 3 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 25% for 31 minutes across 16 checks, each with at least 12 flights and current data.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>9:04 PM–10:04 PM MST</b></span><span>Sample <b>18 flights</b></span><span>Late <b>17%</b></span><span>Typical <b>15%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3840-slc-delays#u-8715\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3840\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3840-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"8681\" data-event=\"3840\" data-cursor=\"MjAyNi0xMS0xM1QwNDowMjo1My4xODI4OTYrMDA6MDB8ODY4MQ\" aria-labelledby=\"wi-h-8681\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-13T04:02:53.182896Z\" title=\"2026-11-13 04:02 UTC · Thu Nov 12, 9:02 PM MST\">9:02 PM</time>\n    <span class=\"wi-z\">MST, Nov 12</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-13T04:02:53.182896Z\">6 h ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">arrivals</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-8681\"><a href=\"/wire/events/3840-slc-delays#u-8681\">Salt Lake City arrivals running late: 56% reached the gate 15+ min late in the last hour</a></h3>\n    \n    \n    <p class=\"wi-body\">Of 16 arrivals that landed between 8:02 PM and 9:02 PM MST, 9 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>8:02 PM–9:02 PM MST</b></span><span>Sample <b>16 flights</b></span><span>Late <b>56%</b></span><span>Typical <b>15%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3840-slc-delays#u-8681\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3840\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3840-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-info\" data-id=\"8154\" data-event=\"3565\" data-cursor=\"MjAyNi0xMS0xMVQxNzoxNzo1NS4zMjM2NzArMDA6MDB8ODE1NA\" aria-labelledby=\"wi-h-8154\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-11T17:17:55.323670Z\" title=\"2026-11-11 17:17 UTC · Wed Nov 11, 10:17 AM MST\">10:17 AM</time>\n    <span class=\"wi-z\">MST, Nov 11</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-11T17:17:55.323670Z\">41 h ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-info\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Informational</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      <span class=\"wi-kind\">Recovery</span>\n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-8154\"><a href=\"/wire/events/3565-slc-delays#u-8154\">Salt Lake City departures back near normal: 9% late in the last hour</a></h3>\n    <p class=\"wi-changed\"><b>What changed:</b> late share 58% at worst → 9% now</p>\n    \n    <p class=\"wi-body\">Of 22 departures that took off between 9:17 AM and 10:17 AM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 11% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 AM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 21% for 31 minutes across 16 checks, each with at least 12 flights and current data.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>9:17 AM–10:17 AM MST</b></span><span>Sample <b>22 flights</b></span><span>Late <b>9%</b></span><span>Typical <b>11%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3565-slc-delays#u-8154\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3565\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3565-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"8152\" data-event=\"3565\" data-cursor=\"MjAyNi0xMS0xMVQxNjoyNDo0OC4yNDcxODIrMDA6MDB8ODE1Mg\" aria-labelledby=\"wi-h-8152\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-11T16:24:48.247182Z\" title=\"2026-11-11 16:24 UTC · Wed Nov 11, 9:24 AM MST\">9:24 AM</time>\n    <span class=\"wi-z\">MST, Nov 11</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-11T16:24:48.247182Z\">42 h ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-8152\"><a href=\"/wire/events/3565-slc-delays#u-8152\">Salt Lake City departures running late: 54% left 15+ min late in the last hour</a></h3>\n    \n    \n    <p class=\"wi-body\">Of 13 departures that took off between 8:24 AM and 9:24 AM MST, 7 left at least 15 minutes late. Salt Lake City typically sees 8% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 8 AM hour). Measured by Tailodds from FAA flight data against airline schedules.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>8:24 AM–9:24 AM MST</b></span><span>Sample <b>13 flights</b></span><span>Late <b>54%</b></span><span>Typical <b>8%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3565-slc-delays#u-8152\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3565\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3565-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-info\" data-id=\"8081\" data-event=\"3537\" data-cursor=\"MjAyNi0xMS0xMFQxMToyNzoxOC4xMjg1NzYrMDA6MDB8ODA4MQ\" aria-labelledby=\"wi-h-8081\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-10T11:27:18.128576Z\" title=\"2026-11-10 11:27 UTC · Tue Nov 10, 4:27 AM MST\">4:27 AM</time>\n    <span class=\"wi-z\">MST, Nov 10</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-10T11:27:18.128576Z\">2 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-forecast\" title=\"Tailodds&#39; model predicts it. It has not happened.\"><svg aria-hidden=\"true\"><use href=\"#wi-fc\"/></svg>Forecast 19%</span>\n      <span class=\"sev sev-info\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Informational</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      <span class=\"wi-kind\">Resolution</span>\n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-8081\"><a href=\"/wire/events/3537-slc-delays#u-8081\">Model lowers Salt Lake City departure delay risk noon–3 PM Tuesday to 19%, near normal</a></h3>\n    <p class=\"wi-changed\"><b>What changed:</b> 41% → 19%; calm-weather level 13%</p>\n    \n    <p class=\"wi-body\">Tailodds’ model gives the 38 departures scheduled from Salt Lake City noon–3 PM Tuesday an average 19% chance of leaving 15+ minutes late. With calm weather the same flights would average 13%. From the 3:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.</p>\n    \n    <p class=\"wi-facts\"><span>Probability <b>19%</b></span><span>Horizon <b>7.5 h</b></span><span>Model <b class=\"mono\">famB-sd-v4i</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds forecast</span>\n      <a href=\"/wire/events/3537-slc-delays#u-8081\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3537\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3537-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"8075\" data-event=\"3537\" data-cursor=\"MjAyNi0xMS0xMFQxMDowNjowOC41ODExMjIrMDA6MDB8ODA3NQ\" aria-labelledby=\"wi-h-8075\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-10T10:06:08.581122Z\" title=\"2026-11-10 10:06 UTC · Tue Nov 10, 3:06 AM MST\">3:06 AM</time>\n    <span class=\"wi-z\">MST, Nov 10</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-10T10:06:08.581122Z\">3 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-forecast\" title=\"Tailodds&#39; model predicts it. It has not happened.\"><svg aria-hidden=\"true\"><use href=\"#wi-fc\"/></svg>Forecast 41%</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-8075\"><a href=\"/wire/events/3537-slc-delays#u-8075\">Model forecasts 41% delay risk for Salt Lake City departures noon–3 PM Tuesday</a></h3>\n    \n    \n    <p class=\"wi-body\">Tailodds’ model gives the 38 departures scheduled from Salt Lake City noon–3 PM Tuesday an average 41% chance of leaving 15+ minutes late. With calm weather the same flights would average 13%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.</p>\n    \n    <p class=\"wi-facts\"><span>Probability <b>41%</b></span><span>Horizon <b>8.9 h</b></span><span>Model <b class=\"mono\">famB-sd-v4i</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds forecast</span>\n      <a href=\"/wire/events/3537-slc-delays#u-8075\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3537\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3537-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-info\" data-id=\"7942\" data-event=\"3481\" data-cursor=\"MjAyNi0xMS0wOVQyMTo0MDo1Mi45MzY2MjcrMDA6MDB8Nzk0Mg\" aria-labelledby=\"wi-h-7942\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-09T21:40:52.936627Z\" title=\"2026-11-09 21:40 UTC · Mon Nov 9, 2:40 PM MST\">2:40 PM</time>\n    <span class=\"wi-z\">MST, Nov 9</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-09T21:40:52.936627Z\">3 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-info\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Informational</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      <span class=\"wi-kind\">Recovery</span>\n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">arrivals</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7942\"><a href=\"/wire/events/3481-slc-delays#u-7942\">Salt Lake City arrivals back near normal: 0% late in the last hour</a></h3>\n    <p class=\"wi-changed\"><b>What changed:</b> late share 54% at worst → 0% now</p>\n    \n    <p class=\"wi-body\">Of 24 arrivals that landed between 1:40 PM and 2:40 PM MST, 0 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 25% for 31 minutes across 16 checks, each with at least 12 flights and current data.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>1:40 PM–2:40 PM MST</b></span><span>Sample <b>24 flights</b></span><span>Late <b>0%</b></span><span>Typical <b>15%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3481-slc-delays#u-7942\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3481\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3481-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"7928\" data-event=\"3481\" data-cursor=\"MjAyNi0xMS0wOVQyMDo0MjozOC40MjM0NTYrMDA6MDB8NzkyOA\" aria-labelledby=\"wi-h-7928\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-09T20:42:38.423456Z\" title=\"2026-11-09 20:42 UTC · Mon Nov 9, 1:42 PM MST\">1:42 PM</time>\n    <span class=\"wi-z\">MST, Nov 9</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-09T20:42:38.423456Z\">3 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">arrivals</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7928\"><a href=\"/wire/events/3481-slc-delays#u-7928\">Salt Lake City arrivals running late: 54% reached the gate 15+ min late in the last hour</a></h3>\n    \n    \n    <p class=\"wi-body\">Of 13 arrivals that landed between 12:42 PM and 1:42 PM MST, 7 reached the gate at least 15 minutes late. Typically 15% of arrivals at Salt Lake City arrive that late (US DOT on-time data, last 12 published months, all arrivals). Measured by Tailodds from FAA flight data against airline schedules.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>12:42 PM–1:42 PM MST</b></span><span>Sample <b>13 flights</b></span><span>Late <b>54%</b></span><span>Typical <b>15%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3481-slc-delays#u-7928\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3481\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3481-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-info\" data-id=\"7880\" data-event=\"3439\" data-cursor=\"MjAyNi0xMS0wOVQxNzoyOTowOC4wMTQ4MzMrMDA6MDB8Nzg4MA\" aria-labelledby=\"wi-h-7880\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-09T17:29:08.014833Z\" title=\"2026-11-09 17:29 UTC · Mon Nov 9, 10:29 AM MST\">10:29 AM</time>\n    <span class=\"wi-z\">MST, Nov 9</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-09T17:29:08.014833Z\">3 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-info\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Informational</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      <span class=\"wi-kind\">Recovery</span>\n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7880\"><a href=\"/wire/events/3439-slc-delays#u-7880\">Salt Lake City departures back near normal: 7% late in the last hour</a></h3>\n    <p class=\"wi-changed\"><b>What changed:</b> late share 50% at worst → 7% now</p>\n    \n    <p class=\"wi-body\">Of 28 departures that took off between 9:29 AM and 10:29 AM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 11% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 AM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 21% for 31 minutes across 16 checks, each with at least 12 flights and current data.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>9:29 AM–10:29 AM MST</b></span><span>Sample <b>28 flights</b></span><span>Late <b>7%</b></span><span>Typical <b>11%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3439-slc-delays#u-7880\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3439\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3439-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"7871\" data-event=\"3439\" data-cursor=\"MjAyNi0xMS0wOVQxNjoyNjozOC4zOTA2NDMrMDA6MDB8Nzg3MQ\" aria-labelledby=\"wi-h-7871\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-09T16:26:38.390643Z\" title=\"2026-11-09 16:26 UTC · Mon Nov 9, 9:26 AM MST\">9:26 AM</time>\n    <span class=\"wi-z\">MST, Nov 9</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-09T16:26:38.390643Z\">3 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7871\"><a href=\"/wire/events/3439-slc-delays#u-7871\">Salt Lake City departures running late: 50% left 15+ min late in the last hour</a></h3>\n    \n    \n    <p class=\"wi-body\">Of 14 departures that took off between 8:26 AM and 9:26 AM MST, 7 left at least 15 minutes late. Salt Lake City typically sees 8% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 8 AM hour). Measured by Tailodds from FAA flight data against airline schedules.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>8:26 AM–9:26 AM MST</b></span><span>Sample <b>14 flights</b></span><span>Late <b>50%</b></span><span>Typical <b>8%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3439-slc-delays#u-7871\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3439\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3439-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-info\" data-id=\"7853\" data-event=\"3434\" data-cursor=\"MjAyNi0xMS0wOVQxMToyNzo1OS43Mzk1MTcrMDA6MDB8Nzg1Mw\" aria-labelledby=\"wi-h-7853\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-09T11:27:59.739517Z\" title=\"2026-11-09 11:27 UTC · Mon Nov 9, 4:27 AM MST\">4:27 AM</time>\n    <span class=\"wi-z\">MST, Nov 9</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-09T11:27:59.739517Z\">3 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-forecast\" title=\"Tailodds&#39; model predicts it. It has not happened.\"><svg aria-hidden=\"true\"><use href=\"#wi-fc\"/></svg>Forecast 24%</span>\n      <span class=\"sev sev-info\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Informational</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      <span class=\"wi-kind\">Resolution</span>\n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7853\"><a href=\"/wire/events/3434-slc-delays#u-7853\">Model lowers Salt Lake City departure delay risk noon–3 PM Monday to 24%, near normal</a></h3>\n    <p class=\"wi-changed\"><b>What changed:</b> 49% → 24%; calm-weather level 17%</p>\n    \n    <p class=\"wi-body\">Tailodds’ model gives the 36 departures scheduled from Salt Lake City noon–3 PM Monday an average 24% chance of leaving 15+ minutes late. With calm weather the same flights would average 17%. From the 3:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.</p>\n    \n    <p class=\"wi-facts\"><span>Probability <b>24%</b></span><span>Horizon <b>7.5 h</b></span><span>Model <b class=\"mono\">famB-sd-v4i</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds forecast</span>\n      <a href=\"/wire/events/3434-slc-delays#u-7853\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3434\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3434-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"7848\" data-event=\"3434\" data-cursor=\"MjAyNi0xMS0wOVQxMDowMzoxOS4yMjM1MTgrMDA6MDB8Nzg0OA\" aria-labelledby=\"wi-h-7848\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-09T10:03:19.223518Z\" title=\"2026-11-09 10:03 UTC · Mon Nov 9, 3:03 AM MST\">3:03 AM</time>\n    <span class=\"wi-z\">MST, Nov 9</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-09T10:03:19.223518Z\">4 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-forecast\" title=\"Tailodds&#39; model predicts it. It has not happened.\"><svg aria-hidden=\"true\"><use href=\"#wi-fc\"/></svg>Forecast 49%</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7848\"><a href=\"/wire/events/3434-slc-delays#u-7848\">Model forecasts 49% delay risk for Salt Lake City departures noon–3 PM Monday</a></h3>\n    \n    \n    <p class=\"wi-body\">Tailodds’ model gives the 36 departures scheduled from Salt Lake City noon–3 PM Monday an average 49% chance of leaving 15+ minutes late. With calm weather the same flights would average 17%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.</p>\n    \n    <p class=\"wi-facts\"><span>Probability <b>49%</b></span><span>Horizon <b>8.9 h</b></span><span>Model <b class=\"mono\">famB-sd-v4i</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds forecast</span>\n      <a href=\"/wire/events/3434-slc-delays#u-7848\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3434\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3434-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-info\" data-id=\"7755\" data-event=\"3379\" data-cursor=\"MjAyNi0xMS0wOVQwMToxMToxNy4zNDAxMDMrMDA6MDB8Nzc1NQ\" aria-labelledby=\"wi-h-7755\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-09T01:11:17.340103Z\" title=\"2026-11-09 01:11 UTC · Sun Nov 8, 6:11 PM MST\">6:11 PM</time>\n    <span class=\"wi-z\">MST, Nov 8</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-09T01:11:17.340103Z\">4 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-info\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Informational</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      <span class=\"wi-kind\">Recovery</span>\n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7755\"><a href=\"/wire/events/3379-slc-delays#u-7755\">Salt Lake City departures back near normal: 14% late in the last hour</a></h3>\n    <p class=\"wi-changed\"><b>What changed:</b> late share 58% at worst → 14% now</p>\n    \n    <p class=\"wi-body\">Of 28 departures that took off between 5:11 PM and 6:11 PM MST, 4 left at least 15 minutes late. Salt Lake City typically sees 19% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 5 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 29% for 31 minutes across 16 checks, each with at least 12 flights and current data.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>5:11 PM–6:11 PM MST</b></span><span>Sample <b>28 flights</b></span><span>Late <b>14%</b></span><span>Typical <b>19%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3379-slc-delays#u-7755\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3379\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3379-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"7745\" data-event=\"3379\" data-cursor=\"MjAyNi0xMS0wOVQwMDoyMzozNi42MzU1MTgrMDA6MDB8Nzc0NQ\" aria-labelledby=\"wi-h-7745\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-09T00:23:36.635518Z\" title=\"2026-11-09 00:23 UTC · Sun Nov 8, 5:23 PM MST\">5:23 PM</time>\n    <span class=\"wi-z\">MST, Nov 8</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-09T00:23:36.635518Z\">4 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7745\"><a href=\"/wire/events/3379-slc-delays#u-7745\">Salt Lake City departures running late: 58% left 15+ min late in the last hour</a></h3>\n    \n    \n    <p class=\"wi-body\">Of 12 departures that took off between 4:23 PM and 5:23 PM MST, 7 left at least 15 minutes late. Salt Lake City typically sees 22% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 4 PM hour). Measured by Tailodds from FAA flight data against airline schedules.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>4:23 PM–5:23 PM MST</b></span><span>Sample <b>12 flights</b></span><span>Late <b>58%</b></span><span>Typical <b>22%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3379-slc-delays#u-7745\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3379\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3379-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-info\" data-id=\"7719\" data-event=\"3358\" data-cursor=\"MjAyNi0xMS0wOFQyMjo0OTo1OC4yMzQzNTgrMDA6MDB8NzcxOQ\" aria-labelledby=\"wi-h-7719\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-08T22:49:58.234358Z\" title=\"2026-11-08 22:49 UTC · Sun Nov 8, 3:49 PM MST\">3:49 PM</time>\n    <span class=\"wi-z\">MST, Nov 8</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-08T22:49:58.234358Z\">4 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-info\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Informational</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      <span class=\"wi-kind\">Recovery</span>\n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7719\"><a href=\"/wire/events/3358-slc-delays#u-7719\">Salt Lake City departures back near normal: 0% late in the last hour</a></h3>\n    <p class=\"wi-changed\"><b>What changed:</b> late share 56% at worst → 0% now</p>\n    \n    <p class=\"wi-body\">Of 18 departures that took off between 2:49 PM and 3:49 PM MST, 0 left at least 15 minutes late. Salt Lake City typically sees 16% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 3 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 26% for 31 minutes across 16 checks, each with at least 12 flights and current data.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>2:49 PM–3:49 PM MST</b></span><span>Sample <b>18 flights</b></span><span>Late <b>0%</b></span><span>Typical <b>16%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3358-slc-delays#u-7719\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3358\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3358-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"7709\" data-event=\"3358\" data-cursor=\"MjAyNi0xMS0wOFQyMTozMzoyMS40MjE4MTgrMDA6MDB8NzcwOQ\" aria-labelledby=\"wi-h-7709\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-08T21:33:21.421818Z\" title=\"2026-11-08 21:33 UTC · Sun Nov 8, 2:33 PM MST\">2:33 PM</time>\n    <span class=\"wi-z\">MST, Nov 8</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-08T21:33:21.421818Z\">4 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7709\"><a href=\"/wire/events/3358-slc-delays#u-7709\">Salt Lake City departures running late: 43% left 15+ min late in the last hour</a></h3>\n    \n    \n    <p class=\"wi-body\">Of 23 departures that took off between 1:33 PM and 2:33 PM MST, 10 left at least 15 minutes late. Salt Lake City typically sees 23% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 2 PM hour). Measured by Tailodds from FAA flight data against airline schedules.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>1:33 PM–2:33 PM MST</b></span><span>Sample <b>23 flights</b></span><span>Late <b>43%</b></span><span>Typical <b>23%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3358-slc-delays#u-7709\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3358\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3358-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-info\" data-id=\"7705\" data-event=\"3345\" data-cursor=\"MjAyNi0xMS0wOFQyMToxODo1Mi4zMDk1MjkrMDA6MDB8NzcwNQ\" aria-labelledby=\"wi-h-7705\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-08T21:18:52.309529Z\" title=\"2026-11-08 21:18 UTC · Sun Nov 8, 2:18 PM MST\">2:18 PM</time>\n    <span class=\"wi-z\">MST, Nov 8</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-08T21:18:52.309529Z\">4 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-info\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Informational</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      <span class=\"wi-kind\">Recovery</span>\n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7705\"><a href=\"/wire/events/3345-slc-delays#u-7705\">Salt Lake City departures back near normal: 12% late in the last hour</a></h3>\n    <p class=\"wi-changed\"><b>What changed:</b> late share 47% at worst → 12% now</p>\n    \n    <p class=\"wi-body\">Of 16 departures that took off between 1:18 PM and 2:18 PM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 16% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 1 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 26% for 31 minutes across 16 checks, each with at least 12 flights and current data.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>1:18 PM–2:18 PM MST</b></span><span>Sample <b>16 flights</b></span><span>Late <b>12%</b></span><span>Typical <b>16%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3345-slc-delays#u-7705\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3345\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3345-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"7686\" data-event=\"3345\" data-cursor=\"MjAyNi0xMS0wOFQxOTo0NTozNi40MjI4MDYrMDA6MDB8NzY4Ng\" aria-labelledby=\"wi-h-7686\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-08T19:45:36.422806Z\" title=\"2026-11-08 19:45 UTC · Sun Nov 8, 12:45 PM MST\">12:45 PM</time>\n    <span class=\"wi-z\">MST, Nov 8</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-08T19:45:36.422806Z\">4 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7686\"><a href=\"/wire/events/3345-slc-delays#u-7686\">Salt Lake City departures running late: 47% left 15+ min late in the last hour</a></h3>\n    \n    \n    <p class=\"wi-body\">Of 19 departures that took off between 11:45 AM and 12:45 PM MST, 9 left at least 15 minutes late. Salt Lake City typically sees 18% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 12 PM hour). Measured by Tailodds from FAA flight data against airline schedules.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>11:45 AM–12:45 PM MST</b></span><span>Sample <b>19 flights</b></span><span>Late <b>47%</b></span><span>Typical <b>18%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3345-slc-delays#u-7686\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3345\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3345-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-info\" data-id=\"7522\" data-event=\"3271\" data-cursor=\"MjAyNi0xMS0wN1QxMDo1OTo0Mi45ODUzNTYrMDA6MDB8NzUyMg\" aria-labelledby=\"wi-h-7522\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-07T10:59:42.985356Z\" title=\"2026-11-07 10:59 UTC · Sat Nov 7, 3:59 AM MST\">3:59 AM</time>\n    <span class=\"wi-z\">MST, Nov 7</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-07T10:59:42.985356Z\">5 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-forecast\" title=\"Tailodds&#39; model predicts it. It has not happened.\"><svg aria-hidden=\"true\"><use href=\"#wi-fc\"/></svg>Forecast 24%</span>\n      <span class=\"sev sev-info\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Informational</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      <span class=\"wi-kind\">Resolution</span>\n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7522\"><a href=\"/wire/events/3271-slc-delays#u-7522\">Model lowers Salt Lake City departure delay risk noon–3 PM Saturday to 24%, near normal</a></h3>\n    <p class=\"wi-changed\"><b>What changed:</b> 44% → 24%; calm-weather level 20%</p>\n    \n    <p class=\"wi-body\">Tailodds’ model gives the 41 departures scheduled from Salt Lake City noon–3 PM Saturday an average 24% chance of leaving 15+ minutes late. With calm weather the same flights would average 20%. From the 3:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.</p>\n    \n    <p class=\"wi-facts\"><span>Probability <b>24%</b></span><span>Horizon <b>8.0 h</b></span><span>Model <b class=\"mono\">famB-sd-v4i</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds forecast</span>\n      <a href=\"/wire/events/3271-slc-delays#u-7522\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3271\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3271-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"7510\" data-event=\"3271\" data-cursor=\"MjAyNi0xMS0wN1QwOTo1Nzo1MS4zMzg0NzgrMDA6MDB8NzUxMA\" aria-labelledby=\"wi-h-7510\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-07T09:57:51.338478Z\" title=\"2026-11-07 09:57 UTC · Sat Nov 7, 2:57 AM MST\">2:57 AM</time>\n    <span class=\"wi-z\">MST, Nov 7</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-07T09:57:51.338478Z\">6 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-forecast\" title=\"Tailodds&#39; model predicts it. It has not happened.\"><svg aria-hidden=\"true\"><use href=\"#wi-fc\"/></svg>Forecast 44%</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7510\"><a href=\"/wire/events/3271-slc-delays#u-7510\">Model forecasts 44% delay risk for Salt Lake City departures noon–3 PM Saturday</a></h3>\n    \n    \n    <p class=\"wi-body\">Tailodds’ model gives the 41 departures scheduled from Salt Lake City noon–3 PM Saturday an average 44% chance of leaving 15+ minutes late. With calm weather the same flights would average 20%. From the 2:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.</p>\n    \n    <p class=\"wi-facts\"><span>Probability <b>44%</b></span><span>Horizon <b>9.0 h</b></span><span>Model <b class=\"mono\">famB-sd-v4i</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds forecast</span>\n      <a href=\"/wire/events/3271-slc-delays#u-7510\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3271\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3271-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"7460\" data-event=\"3241\" data-cursor=\"MjAyNi0xMS0wN1QwNTozMjozOS45OTcxNDArMDA6MDB8NzQ2MA\" aria-labelledby=\"wi-h-7460\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-07T05:32:39.997140Z\" title=\"2026-11-07 05:32 UTC · Fri Nov 6, 10:32 PM MST\">10:32 PM</time>\n    <span class=\"wi-z\">MST, Nov 6</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-07T05:32:39.997140Z\">6 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7460\"><a href=\"/wire/events/3241-slc-delays#u-7460\">Salt Lake City departures running late: 50% left 15+ min late in the last hour</a></h3>\n    \n    \n    <p class=\"wi-body\">Of 16 departures that took off between 9:32 PM and 10:32 PM MST, 8 left at least 15 minutes late. Salt Lake City typically sees 14% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 10 PM hour). Measured by Tailodds from FAA flight data against airline schedules.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>9:32 PM–10:32 PM MST</b></span><span>Sample <b>16 flights</b></span><span>Late <b>50%</b></span><span>Typical <b>14%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3241-slc-delays#u-7460\" data-act=\"open\">Timeline (1)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3241\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3241-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-info\" data-id=\"7248\" data-event=\"3128\" data-cursor=\"MjAyNi0xMS0wNlQyMjo1Mzo1NS43MTE0MjErMDA6MDB8NzI0OA\" aria-labelledby=\"wi-h-7248\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-06T22:53:55.711421Z\" title=\"2026-11-06 22:53 UTC · Fri Nov 6, 3:53 PM MST\">3:53 PM</time>\n    <span class=\"wi-z\">MST, Nov 6</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-06T22:53:55.711421Z\">6 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-info\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Informational</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      <span class=\"wi-kind\">Recovery</span>\n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7248\"><a href=\"/wire/events/3128-slc-delays#u-7248\">Salt Lake City departures back near normal: 8% late in the last hour</a></h3>\n    <p class=\"wi-changed\"><b>What changed:</b> late share 67% at worst → 8% now</p>\n    \n    <p class=\"wi-body\">Of 26 departures that took off between 2:53 PM and 3:53 PM MST, 2 left at least 15 minutes late. Salt Lake City typically sees 16% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 3 PM hour). Measured by Tailodds from FAA flight data against airline schedules. The late share has stayed at or below 26% for 31 minutes across 16 checks, each with at least 12 flights and current data.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>2:53 PM–3:53 PM MST</b></span><span>Sample <b>26 flights</b></span><span>Late <b>8%</b></span><span>Typical <b>16%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3128-slc-delays#u-7248\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3128\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3128-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n","\n\n\n<article class=\"wi sev-significant\" data-id=\"7115\" data-event=\"3128\" data-cursor=\"MjAyNi0xMS0wNlQxOTo0MTo0MS4yODE1NzYrMDA6MDB8NzExNQ\" aria-labelledby=\"wi-h-7115\">\n  <div class=\"wi-t\">\n    <time datetime=\"2026-11-06T19:41:41.281576Z\" title=\"2026-11-06 19:41 UTC · Fri Nov 6, 12:41 PM MST\">12:41 PM</time>\n    <span class=\"wi-z\">MST, Nov 6</span>\n    <span class=\"wi-ago\" data-ago=\"2026-11-06T19:41:41.281576Z\">6 days ago</span>\n  </div>\n  <div class=\"wi-main\">\n    \n    <div class=\"wi-meta\">\n      <span class=\"ev ev-observed\" title=\"Tailodds measured a change in actual operations.\"><svg aria-hidden=\"true\"><use href=\"#wi-eye\"/></svg>Observed</span>\n      <span class=\"sev sev-significant\"><span class=\"bars\" aria-hidden=\"true\"><i></i><i></i><i></i></span>Significant</span>\n      <span class=\"st st-resolved\" title=\"The event's current status\">Resolved</span>\n      \n      \n      <span class=\"wi-type\">Delay</span>\n      <a class=\"apt\" href=\"/airport/SLC\">SLC</a>\n      <span class=\"wi-dir\">departures</span>\n      \n      \n    </div>\n    <h3 id=\"wi-h-7115\"><a href=\"/wire/events/3128-slc-delays#u-7115\">Salt Lake City departures running late: 50% left 15+ min late in the last hour</a></h3>\n    \n    \n    <p class=\"wi-body\">Of 18 departures that took off between 11:41 AM and 12:41 PM MST, 9 left at least 15 minutes late. Salt Lake City typically sees 18% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 12 PM hour). Measured by Tailodds from FAA flight data against airline schedules.</p>\n    \n    <p class=\"wi-facts\"><span>Window <b>11:41 AM–12:41 PM MST</b></span><span>Sample <b>18 flights</b></span><span>Late <b>50%</b></span><span>Typical <b>18%</b></span></p>\n    \n    \n    <div class=\"wi-foot\">\n      <span class=\"wi-src\">Source: Tailodds measurement of FAA flight data against airline schedules</span>\n      <a href=\"/wire/events/3128-slc-delays#u-7115\" data-act=\"open\">Timeline (2)</a>\n      \n      <a href=\"/airport/SLC\" data-act=\"view_airport\">View SLC</a>\n      <button type=\"button\" class=\"linkbtn\" data-follow=\"3128\">Follow</button>\n      <button type=\"button\" class=\"linkbtn\" data-copy=\"/wire/events/3128-slc-delays\">Copy link</button>\n    </div>\n  </div>\n</article>\n"],"filters":"airport=SLC&mode=all"}