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Forecast Significant Resolved Delay SEA departures

Model lowers Seattle departure delay risk 6–9 PM Friday to 30%, near normal

Current state
Resolved at 12:27 PM PST
Started
Latest activity
Updates
2
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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 forecasts 40% delay risk for Seattle departures 6–9 PM Friday

    Tailodds’ model gives the 83 departures scheduled from Seattle 6–9 PM Friday an average 40% chance of leaving 15+ minutes late. With calm weather the same flights would average 23%. From the 9:00 AM PST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetSEA departures 6–9 PM 2026-11-13 (15+ min late)
    Probability (calibrated, mean per flight)40% over 83 flights
    Forecast cycle · horizonFri Nov 13, 9:00 AM PST · 8.1 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-13 17:56 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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  2. Resolution Forecast

    Model lowers Seattle departure delay risk 6–9 PM Friday to 30%, near normal

    What changed: 40% → 30%; calm-weather level 23%

    Tailodds’ model gives the 83 departures scheduled from Seattle 6–9 PM Friday an average 30% chance of leaving 15+ minutes late. With calm weather the same flights would average 23%. From the 11:00 AM PST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetSEA departures 6–9 PM 2026-11-13 (15+ min late)
    Probability (calibrated, mean per flight)30% over 83 flights
    Forecast cycle · horizonFri Nov 13, 11:00 AM PST · 5.5 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-13 20:27 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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