Ground stop at New York JFK (JFK), Nov 12, 2026

EndedThunderstorms halt departures at JFK for 21 minutes

Started: Thu, Nov 12, 12:50 PM EST17:50 UTC
Ended: Thu, Nov 12, 1:11 PM EST18:11 UTC
Duration: 21 min
Cause: thunderstorms

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What happened

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

Cause: Thunderstorms near the airport led air traffic control to stop departures heading out of JFK, since storms make takeoffs and airspace unsafe to manage.

A ground stop at JFK began at 17:50 UTC on November 12, 2026, with departures held from four air traffic control centers. It ended at 18:11 UTC, after 21 minutes, and was not reported as extended. Weather at the airport at the time included light thunderstorms and rain.

Impact by airline

Aircraft seen on the ground at JFK and holding nearby, by airline.

Airline	On ground	Holding
JetBlue B6	4	—
American Airlines AA	2	—
Delta Air Lines DL	1	—
Japan Airlines JL	1	—

Impact by region

Air traffic control centers whose departures to the airport were held.

Center	Status
Boston Center (ZBW)	Held
Washington Center (ZDC)	Held
New York Center (ZNY)	Held
Cleveland Center (ZOB)	Held

Timeline

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

Nov 12, 12:50 PM EST
Ground stop issued at JFK for thunderstorms, until 2:00 pm EST. Departures held from ZDC, ZNY, ZOB, ZBW.
Nov 12, 1:11 PM EST
Ground stop ended after 21 min.

Advisories

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

ATCSCC ADVZY 063 JFK/ZNY 11/12/2026 CDM GROUND STOP

CTL ELEMENT: JFK
ELEMENT TYPE: APT
ADL TIME: 1743Z
GROUND STOP PERIOD: 12/1733Z - 12/1900Z
DEP FACILITIES INCLUDED: (Manual) ZDC ZNY ZOB ZBW  CYHZ CYOW CYUL
 CYYZ CYTZ CYQB
PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 0 / 0 / 0
NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 717 / 80 / 48
PROBABILITY OF EXTENSION: MEDIUM
IMPACTING CONDITION: WEATHER / THUNDERSTORMS
COMMENTS:

Original advisory ↗

Where flights were held

Departures to JFK were held from 4 centers (Manual).

Chance of extension: MEDIUM

Weather at the time

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

When it started

MVFR

SPECI KJFK 121742Z 08014KT 6SM -TSRA BR SCT008 BKN016 OVC030CB 13/12 A2948 RMK AO2 PK WND 10026/1657 FRQ LTGICCG OHD-SW TS OHD-SW MOV N P0012 T01330117 $ · observed Nov 12, 12:42 PM EST

Over the airport: Convective SIGMET 55E.

Latest during the stop

MVFR

METAR KJFK 121751Z 07016KT 7SM -TSRA SCT008 BKN018 OVC030CB 13/12 A2948 RMK AO2 PK WND 10026/1657 SLP982 FRQ LTGICCG OHD-SW TS OHD-SW MOV N P0012 60012 T01330117 10161 20133 58045 $ · observed Nov 12, 12:51 PM EST

Over the airport: Convective SIGMET 59E.

New York JFK (JFK) live status →Every ground stop at JFK →Replay Nov 12, 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 JFK 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 JFK, every 30 minutes while active and once more after the end. Delayed means 15 or more minutes late at JFK; 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 JFK 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 JFK, 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.