Ground stop at Seattle-Tacoma (SEA), Nov 7, 2026

EndedWind halts Seattle departures for 41 minutes

Started: Sat, Nov 7, 2:56 PM PST22:56 UTC
Ended: Sat, Nov 7, 3:37 PM PST23:37 UTC
Duration: 41 min
Cause: wind

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What happened

AI-written · may contain mistakes. Written from the advisory text and weather only.

Cause: Wind at Seattle-Tacoma, under a wind advisory, led air traffic control to stop departures heading there.

Air traffic control issued a ground stop at Seattle-Tacoma at 22:56 UTC on November 7, 2026, holding departures from three air traffic control centers. Its chance of being extended was raised to medium, but the stop ended at 23:37 UTC, after 41 minutes.

Impact by airline

Flights to and from SEA delayed 30+ minutes during the ground stop and the hour after it.

Delayed 30+ min: 9
Arrivals / departures: 3 / 6

Airline	Delayed	Avg delay	On ground	Holding
Delta Air Lines DL	3	54 min	3	—
Horizon Air QX	3	48 min	—	—
SkyWest Airlines OO	1	33 min	3	—
American Airlines AA	1	195 min	2	—
Southwest Airlines WN	1	38 min	—	—

Delayed 30+ minOn ground / holding: most seen at once.

Held at origin

Flights to SEA still on the ground at their origin 15+ minutes past their scheduled departure while the stop was in effect. Held time is minutes past the scheduled departure.

Held at origin: 0
Average held: —
Longest: —

No inbound flight has been seen held at its origin during this stop.

Inbound in the air and diversions

Flights to SEA that had departed and not yet landed, at each arrivals board sample while the stop was in effect, and inbound flights that landed somewhere else instead.

Diverted: 0

Diversions

No inbound flight has been seen diverting during this stop.

Impact by region

Delayed arrivals by the air traffic control center they departed from. Held: departures from that center were stopped.

Center	Status	Delayed
Salt Lake City Center (ZLC)	Held	1
Oakland Center (ZOA)	Held	0
Seattle Center (ZSE)	Held	0
Outside the US centers	Not held	1
Denver Center (ZDV)	Not held	1

Timeline

Every change published while the ground stop was in effect, as seen each minute.

Nov 7, 2:56 PM PST
Ground stop issued at SEA for wind, until 4:00 pm PST.
Nov 7, 2:58 PM PST
Reason changed to wind.
Nov 7, 2:58 PM PST
Chance of extension now medium.
Nov 7, 2:58 PM PST
Departures held from ZLC, ZOA, ZSE.
Nov 7, 3:37 PM PST
Ground stop ended after 41 min.

Advisories

The air traffic control advisories issued for this ground stop, as published.

ATCSCC ADVZY 078 SEA/ZSE 11/07/2026 CDM GROUND STOP

CTL ELEMENT: SEA
ELEMENT TYPE: APT
ADL TIME: 2255Z
GROUND STOP PERIOD: 07/2240Z - 08/0000Z
DEP FACILITIES INCLUDED: (Manual) ZLC ZOA ZSE  CYEG CYVR CYYC CYYJ
 CYLW
PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 0 / 0 / 0
NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 400 / 69 / 31
PROBABILITY OF EXTENSION: MEDIUM
IMPACTING CONDITION: WEATHER / WIND
COMMENTS:

Original advisory ↗

Where flights were held

Departures to SEA were held from 3 centers (Manual).

Chance of extension: MEDIUM

Weather at the time

METAR, weather alerts and SIGMETs at the airport during the stop.

When it started

VFR

METAR KSEA 072153Z 21004KT 10SM SCT075 OVC200 14/10 A2983 RMK AO2 SLP108 T01440100 · observed Nov 7, 1:53 PM PST

Wind Advisory · Wind Advisory issued November 7 at 1:17PM PST until November 8 at 4:00AM PST by NWS Seattle WA

Latest during the stop

VFR

METAR KSEA 072253Z 16003KT 10SM SCT100 OVC230 13/10 A2980 RMK AO2 SLP097 T01330100 · observed Nov 7, 2:53 PM PST

Wind Advisory · Wind Advisory issued November 7 at 1:17PM PST until November 8 at 4:00AM PST by NWS Seattle WA

Seattle-Tacoma (SEA) live status →Every ground stop at SEA →Replay Nov 7, 2026 on the map →Read the full advisory ↗What is a ground stop? →

How it is measured

Status, timeline, cause and held centers: the national airspace status feed, checked every minute, and the air traffic control advisories it links to.
Delays by airline and region: departures and arrivals at SEA 30 or more minutes late, by their estimated delay against the schedule, sampled every 10 minutes while the stop is active and once more after it ends.
Totals and cancellations: arrival and departure boards for SEA, every 30 minutes while active and once more after the end. Delayed means 15 or more minutes late at SEA; cancelled is the airline's cancelled status; codeshares count once. Flights scheduled from the start until an hour after the end are counted.
Held at origin: the same arrivals boards, which carry each flight's scheduled and actual departure from its origin. A flight is held when it is still scheduled, not departed, 15 or more minutes past its scheduled departure at a sample taken during the stop. In scope: its origin is in a held center or listed facility; flights from elsewhere are late for other reasons.
Inbound in the air: the same arrivals boards. At each board taken during the stop, a flight to SEA is in the air when it has departed (en route, or with an actual departure time) and not landed, cancelled or diverted; one still shown in the air over an hour past its arrival estimate, or departed more than 18 hours earlier, is treated as stale and left out.
Diversions: an inbound flight marked diverted during the stop or the wrap-up after it (not one marked before it could have departed), or one still shown in the air 30+ minutes past its arrival estimate that ADS-B (by its ICAO call sign) then found on the ground at another airport, not its origin. The diversion airport is the airport ADS-B found it at, else the updated destination. Cancellations never count. Regional flights flown under another call sign can't be found on ADS-B, so their diversion airport may be unknown.
Aircraft on the ground and holding: ADS-B positions around SEA, every 5 minutes; the airline is read from the call sign. Holding counts airline flights only (passenger, regional and cargo), not private, military or medical flights.
Weather: METARs, SIGMETs and weather alerts.
News: headline links filtered to this airport and these days; we show titles and links only.

Data sources are listed on the credits page.