Live · checked FAA national advisories 6 minFAA NAS status 2 minForecast cycle 1 hLightning 1 minWeather observations 2 minFAA surface data 6 minFAA flight data 7 min
Forecast Significant Resolved Delay SFO departures

Model lowers SFO departure delay risk 6–9 PM Wednesday to 36%, near normal

Current state
Resolved at 10:56 AM PST
Started
Latest activity
Updates
2
Create monitor View SFOFlights at SFO

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.

Updates oldest first

  1. Initial Forecast

    Model forecasts 44% delay risk for SFO departures 6–9 PM Wednesday

    Tailodds’ model gives the 70 departures scheduled from SFO 6–9 PM Wednesday an average 44% chance of leaving 15+ minutes late. With calm weather the same flights would average 26%. From the 8:00 AM PST forecast (model famA-fc-v3+famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetSFO departures 6–9 PM 2026-11-04 (15+ min late)
    Probability (calibrated, mean per flight)44% over 70 flights
    Forecast cycle · horizonWed Nov 4, 8:00 AM PST · 9.0 h ahead
    Model versionfamA-fc-v3+famB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-04 16:57 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
    Was this useful?
  2. Resolution Forecast

    Model lowers SFO departure delay risk 6–9 PM Wednesday to 36%, near normal

    What changed: 44% → 36%; calm-weather level 29%

    Tailodds’ model gives the 70 departures scheduled from SFO 6–9 PM Wednesday an average 36% chance of leaving 15+ minutes late. With calm weather the same flights would average 29%. From the 10:00 AM PST forecast (model famB-sd-v4i). The model changed since the previous item (from famA-fc-v3+famB-sd-v4i), so some or all of this change comes from the new model rather than new information. This is a forecast, not a report of delays.

    Evidence for this update
    TargetSFO departures 6–9 PM 2026-11-04 (15+ min late)
    Probability (calibrated, mean per flight)36% over 70 flights
    Forecast cycle · horizonWed Nov 4, 10:00 AM PST · 7.1 h ahead
    Model versionfamB-sd-v4i (changed since the previous update)
    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?