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Forecast Major Resolved Cancellation SLC departures

Model lowers expected cancellations to about 3 among Salt Lake City departures 6–9 AM Sunday

Current state
Resolved: closed without a new report (The forecast window has started; measured delays are reported separately as observed items.)
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Tailodds reports what the FAA publishes, what we measure and what our model forecasts. It doesn’t control airport operations or change bookings; check with your airline about your trip.

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  1. Initial Forecast

    Model expects about 7 cancellations among Salt Lake City departures 6–9 AM Sunday

    Adding up each flight’s cancellation probability, Tailodds’ model expects about 7 of the 50 departures scheduled 6–9 AM Sunday to be cancelled (14%). With calm weather it would expect about 0. From the 8:00 PM MST forecast (model famB-sd-v4i). This is a forecast, not a report of cancellations.

    Evidence for this update
    TargetSLC departures 6–9 AM 2026-11-15 (cancelled)
    Expected cancellations~7.0 over 50 flights
    Forecast cycle · horizonSat Nov 14, 8:00 PM MST · 9.0 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-15 03:57 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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  2. Escalation Forecast

    Model raises expected cancellations to about 9 among Salt Lake City departures 6–9 AM Sunday

    What changed: about 7 → 9 expected cancellations since the 8:00 PM MST forecast

    Adding up each flight’s cancellation probability, Tailodds’ model expects about 9 of the 50 departures scheduled 6–9 AM Sunday to be cancelled (18%). With calm weather it would expect about 0. From the 10:00 PM MST forecast (model famB-sd-v4i). This is a forecast, not a report of cancellations.

    Evidence for this update
    TargetSLC departures 6–9 AM 2026-11-15 (cancelled)
    Expected cancellations~9.1 over 50 flights
    Forecast cycle · horizonSat Nov 14, 10:00 PM MST · 7.0 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-15 05:57 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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  3. De-escalation Forecast

    Model lowers expected cancellations to about 7 among Salt Lake City departures 6–9 AM Sunday

    What changed: about 9 → 7 expected cancellations since the 10:00 PM MST forecast

    Adding up each flight’s cancellation probability, Tailodds’ model expects about 7 of the 50 departures scheduled 6–9 AM Sunday to be cancelled (15%). With calm weather it would expect about 0. From the 11:00 PM MST forecast (model famB-sd-v4i). This is a forecast, not a report of cancellations.

    Evidence for this update
    TargetSLC departures 6–9 AM 2026-11-15 (cancelled)
    Expected cancellations~7.4 over 50 flights
    Forecast cycle · horizonSat Nov 14, 11:00 PM MST · 5.6 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-15 07:26 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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  4. De-escalation Forecast

    Model lowers expected cancellations to about 6 among Salt Lake City departures 6–9 AM Sunday

    What changed: about 7 → 6 expected cancellations since the 11:00 PM MST forecast

    Adding up each flight’s cancellation probability, Tailodds’ model expects about 6 of the 50 departures scheduled 6–9 AM Sunday to be cancelled (11%). With calm weather it would expect about 0. From the 12:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of cancellations.

    Evidence for this update
    TargetSLC departures 6–9 AM 2026-11-15 (cancelled)
    Expected cancellations~5.6 over 50 flights
    Forecast cycle · horizonSun Nov 15, 12:00 AM MST · 4.5 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-15 08:27 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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  5. De-escalation Forecast

    Model lowers expected cancellations to about 3 among Salt Lake City departures 6–9 AM Sunday

    What changed: about 6 → 3 expected cancellations since the 12:00 AM MST forecast

    Adding up each flight’s cancellation probability, Tailodds’ model expects about 3 of the 51 departures scheduled 6–9 AM Sunday to be cancelled (7%). With calm weather it would expect about 0. From the 3:00 AM MST forecast (model famB-sd-v4i). This is a forecast, not a report of cancellations.

    Evidence for this update
    TargetSLC departures 6–9 AM 2026-11-15 (cancelled)
    Expected cancellations~3.5 over 51 flights
    Forecast cycle · horizonSun Nov 15, 3:00 AM MST · 2.1 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-15 10:55 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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Closed Sun Nov 15, 6:00 AM MST: The forecast window has started; measured delays are reported separately as observed items.