tailodds FORECAST
Partly stale · checked FAA NAS status 224 h staleForecast cycle 1 hLightning 224 h staleWeather observations no data staleFAA surface data 4 minFAA flight data 5 min

FAA NAS status is stale (224 h old). No FAA restriction can start or end on the wire until it is fresh again.

Lightning is stale (224 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 forecasts 46% delay risk for National departures 6–9 PM Friday

Current state
Resolved: closed without a new report (The forecast window has started; measured delays are reported separately as observed items.)
Started
Latest activity
Updates
1
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.

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  1. Initial Forecast

    Model forecasts 46% delay risk for National departures 6–9 PM Friday

    Tailodds’ model gives the 83 departures scheduled from National 6–9 PM Friday an average 46% chance of leaving 15+ minutes late. With calm weather the same flights would average 29%. From the 12:00 PM EDT forecast (model famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetDCA departures 6–9 PM 2026-10-23 (15+ min late)
    Probability (calibrated, mean per flight)46% over 83 flights
    Forecast cycle · horizonFri Oct 23, 12:00 PM EDT · 5.1 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-10-23 16:57 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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Closed Fri Oct 23, 6:00 PM EDT: The forecast window has started; measured delays are reported separately as observed items.