Partly stale · checked FAA NAS status 229 h staleForecast cycle 78 minLightning 229 h staleWeather observations no data staleFAA surface data 4 minFAA flight data 5 min

FAA NAS status is stale (229 h old). No FAA restriction can start or end on the wire until it is fresh again.

Lightning is stale (229 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.

Observed Significant Resolved Delay MDW departures

Midway departure delays ease: 39% late in the last hour, still above normal

Current state
Resolved: closed without a new report (No usable measurement for 6 h; closed without a recovery report.)
Started
Latest activity
Updates
3
Create monitor View MDWFlights at MDW

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 Observed

    Midway departures running late: 43% left 15+ min late in the last hour

    Of 23 departures that took off between 9:58 AM and 10:58 AM CST, 10 left at least 15 minutes late. Midway typically sees 16% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 10 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window9:58 AM–10:58 AM CST
    Sample23 flights, 10 late (43%)
    Comparison16% typical · US DOT on-time data, last 12 published months, departures in the 10 AM hour
    Median delay10.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-02 16:58 UTC)
    SourcesTailodds measurement of FAA flight data against airline schedules
    Provenanceobserved_ops observed-ops-v1 · config 2026-10-17.1 · writer template-v1
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  2. Escalation Observed

    Midway departure delays worsen: 71% late in the last hour

    What changed: late share 43% → 71%

    Of 14 departures that took off between 10:37 AM and 11:37 AM CST, 10 left at least 15 minutes late. Midway typically sees 29% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 11 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window10:37 AM–11:37 AM CST
    Sample14 flights, 10 late (71%)
    Comparison29% typical · US DOT on-time data, last 12 published months, departures in the 11 AM hour
    Median delay21.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-02 17:37 UTC)
    SourcesTailodds measurement of FAA flight data against airline schedules
    Provenanceobserved_ops observed-ops-v1 · config 2026-10-17.1 · writer template-v1
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  3. De-escalation Observed

    Midway departure delays ease: 39% late in the last hour, still above normal

    What changed: late share 71% → 39%

    Of 23 departures that took off between 12:35 PM and 1:35 PM CST, 9 left at least 15 minutes late. Midway typically sees 24% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 1 PM hour). Measured by Tailodds from FAA flight data against airline schedules.

    Evidence for this update
    Measurement window12:35 PM–1:35 PM CST
    Sample23 flights, 9 late (39%)
    Comparison24% typical · US DOT on-time data, last 12 published months, departures in the 1 PM hour
    Median delay4.0 min
    MethodFAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
    Source event time
    Ingested
    Published here (2026-11-02 19:35 UTC)
    SourcesTailodds measurement of FAA flight data against airline schedules
    Provenanceobserved_ops observed-ops-v1 · config 2026-10-17.1 · writer template-v1
    Was this useful?

Closed Tue Nov 3, 4:56 AM CST: No usable measurement for 6 h; closed without a recovery report.