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Forecast Major Resolved Delay ATL departures

Model lowers Atlanta departure delay risk 9 AM–noon Saturday to 29%, near normal

Current state
Resolved at 3:27 AM EST
Started
Latest activity
Updates
3
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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.

Updates oldest first

  1. Initial Forecast

    Model forecasts 42% delay risk for Atlanta departures 9 AM–noon Saturday

    Tailodds’ model gives the 261 departures scheduled from Atlanta 9 AM–noon Saturday an average 42% chance of leaving 15+ minutes late. With calm weather the same flights would average 14%. From the 10:00 PM EST forecast (model famA-fc-v3+famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetATL departures 9 AM–noon 2026-11-14 (15+ min late)
    Probability (calibrated, mean per flight)42% over 261 flights
    Forecast cycle · horizonFri Nov 13, 10:00 PM EST · 10.0 h ahead
    Model versionfamA-fc-v3+famB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-14 03:58 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 Atlanta departure delay risk 9 AM–noon Saturday to 60%

    What changed: 42% → 60% since the 10:00 PM EST forecast (same model, same window)

    Tailodds’ model gives the 260 departures scheduled from Atlanta 9 AM–noon Saturday an average 60% chance of leaving 15+ minutes late. With calm weather the same flights would average 14%. From the 11:00 PM EST forecast (model famA-fc-v3+famB-sd-v4i). This is a forecast, not a report of delays.

    Evidence for this update
    TargetATL departures 9 AM–noon 2026-11-14 (15+ min late)
    Probability (calibrated, mean per flight)60% over 260 flights
    Forecast cycle · horizonFri Nov 13, 11:00 PM EST · 9.0 h ahead
    Model versionfamA-fc-v3+famB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-14 04:57 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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  3. Resolution Forecast

    Model lowers Atlanta departure delay risk 9 AM–noon Saturday to 29%, near normal

    What changed: 60% → 29%; calm-weather level 14%

    Tailodds’ model gives the 260 departures scheduled from Atlanta 9 AM–noon Saturday an average 29% chance of leaving 15+ minutes late. With calm weather the same flights would average 14%. From the 2:00 AM 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
    TargetATL departures 9 AM–noon 2026-11-14 (15+ min late)
    Probability (calibrated, mean per flight)29% over 260 flights
    Forecast cycle · horizonSat Nov 14, 2:00 AM EST · 5.5 h ahead
    Model versionfamB-sd-v4i (changed since the previous update)
    Source event time
    Ingested
    Published here (2026-11-14 08:27 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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