tailodds FORECAST
Partly stale · checked FAA NAS status 223 h staleForecast cycle 76 minLightning 223 h staleWeather observations no data staleFAA surface data 5 minFAA flight data 5 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 BWI departures

Model lowers BWI departure delay risk 9 PM–midnight Monday to 53%

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
3
Create monitor View BWIFlights at BWI

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 43% delay risk for BWI departures 9 PM–midnight Monday

    Tailodds’ model gives the 36 departures scheduled from BWI 9 PM–midnight Monday an average 43% chance of leaving 15+ minutes late. With calm weather the same flights would average 27%. From the 11:00 AM EDT forecast (model famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetBWI departures 9 PM–midnight 2026-10-19 (15+ min late)
    Probability (calibrated, mean per flight)43% over 36 flights
    Forecast cycle · horizonMon Oct 19, 11:00 AM EDT · 9.0 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-10-19 15:57 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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  2. Escalation Forecast

    Model raises BWI departure delay risk 9 PM–midnight Monday to 59%

    What changed: 43% → 59% since the 11:00 AM EDT forecast (same model, same window)

    Tailodds’ model gives the 36 departures scheduled from BWI 9 PM–midnight Monday an average 59% chance of leaving 15+ minutes late. With calm weather the same flights would average 28%. From the 5:00 PM EDT forecast (model famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetBWI departures 9 PM–midnight 2026-10-19 (15+ min late)
    Probability (calibrated, mean per flight)59% over 36 flights
    Forecast cycle · horizonMon Oct 19, 5:00 PM EDT · 3.0 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-10-19 21:57 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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  3. De-escalation Forecast

    Model lowers BWI departure delay risk 9 PM–midnight Monday to 53%

    What changed: 59% → 53% since the 5:00 PM EDT forecast (same model, same window)

    Tailodds’ model gives the 36 departures scheduled from BWI 9 PM–midnight Monday an average 53% chance of leaving 15+ minutes late. With calm weather the same flights would average 27%. From the 6:00 PM EDT forecast (model famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetBWI departures 9 PM–midnight 2026-10-19 (15+ min late)
    Probability (calibrated, mean per flight)53% over 36 flights
    Forecast cycle · horizonMon Oct 19, 6:00 PM EDT · 2.0 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-10-19 22:57 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
    Was this useful?

Closed Mon Oct 19, 9:00 PM EDT: The forecast window has started; measured delays are reported separately as observed items.