Partly stale · checked 7:50 AM FAA NAS status 224 h staleForecast cycle 1 hLightning 224 h staleWeather observations no data staleFAA surface data 5 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.

Observed Significant Resolved Delay PHX departures

Phoenix departures back near normal: 19% late in the last hour

Current state: Resolved at 1:51 PM MST
Started: Sat Oct 31, 10:02 AM MST
Latest activity: Sat Oct 31, 1:51 PM MST
Updates: 4

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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

Initial Observed Sat Oct 31, 10:02 AM MST

Phoenix departures running late: 59% left 15+ min late in the last hour

Of 44 departures that took off between 9:02 AM and 10:02 AM MST, 26 left at least 15 minutes late. Phoenix typically sees 16% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

Evidence for this update

Measurement window	9:02 AM–10:02 AM MST
Sample	44 flights, 26 late (59%)
Comparison	16% typical · US DOT on-time data, last 12 published months, departures in the 9 AM hour
Median delay	20.0 min
Method	FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
Source event time	Sat Oct 31, 10:02 AM MST
Ingested	Sat Oct 31, 10:02 AM MST
Published here	Sat Oct 31, 10:02 AM MST (2026-10-31 17:02 UTC)
Sources	Tailodds measurement of FAA flight data against airline schedules
Provenance	observed_ops observed-ops-v1 · config 2026-10-17.1 · writer template-v1

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Escalation Observed Sat Oct 31, 10:24 AM MST

Phoenix departure delays worsen: 88% late in the last hour

What changed: late share 59% → 88%

Of 33 departures that took off between 9:24 AM and 10:24 AM MST, 29 left at least 15 minutes late. Phoenix typically sees 16% of departures in this hour leave that late (US DOT on-time data, last 12 published months, departures in the 9 AM hour). Measured by Tailodds from FAA flight data against airline schedules.

Evidence for this update

Measurement window	9:24 AM–10:24 AM MST
Sample	33 flights, 29 late (88%)
Comparison	16% typical · US DOT on-time data, last 12 published months, departures in the 9 AM hour
Median delay	27.0 min
Method	FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
Source event time	Sat Oct 31, 10:24 AM MST
Ingested	Sat Oct 31, 10:24 AM MST
Published here	Sat Oct 31, 10:24 AM MST (2026-10-31 17:24 UTC)
Sources	Tailodds measurement of FAA flight data against airline schedules
Provenance	observed_ops observed-ops-v1 · config 2026-10-17.1 · writer template-v1

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De-escalation Observed Sat Oct 31, 12:10 PM MST

Phoenix departure delays ease: 49% late in the last hour, still above normal

What changed: late share 88% → 49%

Of 43 departures that took off between 11:10 AM and 12:10 PM MST, 21 left at least 15 minutes late. Phoenix typically sees 21% 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 window	11:10 AM–12:10 PM MST
Sample	43 flights, 21 late (49%)
Comparison	21% typical · US DOT on-time data, last 12 published months, departures in the 11 AM hour
Median delay	14.0 min
Method	FAA wheels-off/on +/- median taxi (taxi_times) vs the FAA-filed airline schedule (flight_odds)
Source event time	Sat Oct 31, 12:10 PM MST
Ingested	Sat Oct 31, 12:10 PM MST
Published here	Sat Oct 31, 12:10 PM MST (2026-10-31 19:10 UTC)
Sources	Tailodds measurement of FAA flight data against airline schedules
Provenance	observed_ops observed-ops-v1 · config 2026-10-17.1 · writer template-v1

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Recovery Observed Sat Oct 31, 1:51 PM MST