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Forecast Major Developing Cancellation ORD departures

Model raises expected cancellations to about 90 among O'Hare departures noon–3 PM Saturday

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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.

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  1. Initial Forecast

    Model expects about 11 cancellations among O'Hare departures noon–3 PM Saturday

    Adding up each flight’s cancellation probability, Tailodds’ model expects about 11 of the 218 departures scheduled noon–3 PM Saturday to be cancelled (5%). With calm weather it would expect about 1. From the 1:00 AM CST forecast (model famA-fc-v3+famB-sd-v4i). This is a forecast, not a report of cancellations.

    Evidence for this update
    TargetORD departures noon–3 PM 2026-11-14 (cancelled)
    Expected cancellations~11.1 over 218 flights
    Forecast cycle · horizonSat Nov 14, 1:00 AM CST · 9.5 h ahead
    Model versionfamA-fc-v3+famB-sd-v4i
    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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  2. Escalation Forecast

    Updated model now expects about 19 among O'Hare departures noon–3 PM Saturday

    What changed: about 11 → 19 expected cancellations since the 1:00 AM CST forecast

    Adding up each flight’s cancellation probability, Tailodds’ model expects about 19 of the 219 departures scheduled noon–3 PM Saturday to be cancelled (9%). With calm weather it would expect about 1. From the 3:00 AM CST 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 cancellations.

    Evidence for this update
    TargetORD departures noon–3 PM 2026-11-14 (cancelled)
    Expected cancellations~18.8 over 219 flights
    Forecast cycle · horizonSat Nov 14, 3:00 AM CST · 8.0 h ahead
    Model versionfamB-sd-v4i (changed since the previous update)
    Source event time
    Ingested
    Published here (2026-11-14 09:58 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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  3. Escalation Forecast

    Model raises expected cancellations to about 90 among O'Hare departures noon–3 PM Saturday

    What changed: about 19 → 90 expected cancellations since the 3:00 AM CST forecast

    Adding up each flight’s cancellation probability, Tailodds’ model expects about 90 of the 217 departures scheduled noon–3 PM Saturday to be cancelled (42%). With calm weather it would expect about 1. From the 4:00 AM CST forecast (model famB-sd-v4i). This is a forecast, not a report of cancellations.

    Evidence for this update
    TargetORD departures noon–3 PM 2026-11-14 (cancelled)
    Expected cancellations~90.2 over 217 flights
    Forecast cycle · horizonSat Nov 14, 4:00 AM CST · 7.1 h ahead
    Model versionfamB-sd-v4i
    Source event time
    Ingested
    Published here (2026-11-14 10:56 UTC)
    SourcesTailodds forecast
    Provenanceforecast_blocks forecast-blocks-v1 · config 2026-10-17.1 · writer template-v1
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