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Forecast Significant Resolved Delay SFO departures

Model lowers SFO departure delay risk 3–6 PM Wednesday to 39%, near normal

Current state
Resolved at 10:56 AM PST
Started
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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 44% delay risk for SFO departures 3–6 PM Wednesday

    Tailodds’ model gives the 100 departures scheduled from SFO 3–6 PM Wednesday an average 44% chance of leaving 15+ minutes late. With calm weather the same flights would average 26%. From the 6:00 AM PST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetSFO departures 3–6 PM 2026-11-04 (15+ min late)
    Probability (calibrated, mean per flight)44% over 100 flights
    Forecast cycle · horizonWed Nov 4, 6:00 AM PST · 8.1 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-04 14:56 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 SFO departure delay risk 3–6 PM Wednesday to 39%, near normal

    What changed: 44% → 39%; calm-weather level 34%

    Tailodds’ model gives the 100 departures scheduled from SFO 3–6 PM Wednesday an average 39% chance of leaving 15+ minutes late. With calm weather the same flights would average 34%. From the 10:00 AM PST forecast (model famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetSFO departures 3–6 PM 2026-11-04 (15+ min late)
    Probability (calibrated, mean per flight)39% over 100 flights
    Forecast cycle · horizonWed Nov 4, 10:00 AM PST · 4.1 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-04 18:56 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
    Was this useful?