tailodds FORECAST
Partly stale · checked FAA NAS status 223 h staleForecast cycle 77 minLightning 223 h staleWeather observations no data staleFAA surface data 7 minFAA flight data 6 min

FAA NAS status is stale (223 h old). No FAA restriction can start or end on the wire until it is fresh again.

Lightning is stale (223 h old). Lightning items are paused; thunderstorm items still come from official observations.

Weather observations is stale. Weather items are paused until it is fresh again; missing observations never end a weather event.

Forecast Significant Resolved Delay DCA departures

Model lowers National departure delay risk 6–9 PM Saturday to 41%, near normal

Current state
Resolved at 4:57 PM EST
Started
Latest activity
Updates
2
Create monitor View DCAFlights at DCA

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 National departures 6–9 PM Saturday

    Tailodds’ model gives the 74 departures scheduled from National 6–9 PM Saturday an average 44% chance of leaving 15+ minutes late. With calm weather the same flights would average 29%. From the 7:00 AM EST forecast (model famA-fc-v3+famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetDCA departures 6–9 PM 2026-11-07 (15+ min late)
    Probability (calibrated, mean per flight)44% over 74 flights
    Forecast cycle · horizonSat Nov 7, 7:00 AM EST · 9.5 h ahead
    Model versionfamA-fc-v3+famB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-07 13:27 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 National departure delay risk 6–9 PM Saturday to 41%, near normal

    What changed: 44% → 41%; calm-weather level 34%

    Tailodds’ model gives the 74 departures scheduled from National 6–9 PM Saturday an average 41% chance of leaving 15+ minutes late. With calm weather the same flights would average 34%. From the 4:00 PM EST 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
    TargetDCA departures 6–9 PM 2026-11-07 (15+ min late)
    Probability (calibrated, mean per flight)41% over 74 flights
    Forecast cycle · horizonSat Nov 7, 4:00 PM EST · 1.0 h ahead
    Model versionfamB-sd-v4i (changed since the previous update)
    Source event time
    Ingested
    Published here (2026-11-07 21:57 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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