GroundStop.app

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

EndedThunderstorms halt JFK departures for 2 hours 38 minutes
Started
21:10 UTC
Ended
23:48 UTC
Duration
2 hr 38 min
Cause
thunderstorms
Extended 2 times

Check your flight

Enter your flight number to see its EDCT, the ground stop or delay program at its destination, and its status.

What happened

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

Cause: Thunderstorms over and around the airport led air traffic control to hold departing flights on the ground.

A ground stop at JFK began at 21:10 UTC on November 12, 2026, because of thunderstorms. It was extended twice, first to 6:00 pm EST and then to 7:00 pm EST, and departures from more air traffic control centers were briefly held before being released. The stop ended at 23:48 UTC, lasting 2 hours 38 minutes.

Impact by airline

Flights to and from JFK scheduled during the ground stop and the hour after it. Delayed means 15+ minutes late.
Flights
219
Delayed
104
Cancelled
44
Arrivals / departures
129 / 90
AirlineFlightsDelayed / cancelled
Delta Air Lines DL55
25 / 9
JetBlue B638
21 / 5
American Airlines AA30
21 / 1
Republic Airways YX21
0 / 16
Endeavor Air 9E12
3 / 8
Alaska Airlines AS11
8 / 0
Air France AF5
4 / 0
British Airways BA4
3 / 0
Swiss LX3
2 / 1
El Al LY2
2 / 0
Aeroméxico AM2
0 / 2
Emirates EK2
2 / 0
WestJet WS2
2 / 0
Aer Lingus EI5
0 / 1
Virgin Atlantic VS3
1 / 0

Delayed 15+ min CancelledOn ground / holding: most seen at once.

Held at origin

Flights to JFK 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 JFK 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
2

Diversions

FlightFromDiverted toSeen
KL 641KLMAMSBOS Boston7:27 PM
DL 267Delta Air LinesCDGBOS Boston7:32 PM

Impact by region

Arrivals by the air traffic control center they departed from. Held: departures from that center were stopped.
CenterStatusArrivalsDelayedCancelled
Washington Center (ZDC)Held2378
Boston Center (ZBW)Held1544
Cleveland Center (ZOB)Held633
New York Center (ZNY)Held220
Outside the US centersNot held47200
Los Angeles Center (ZLA)Not held1070
Atlanta Center (ZTL)Not held321
Houston Center (ZHU)Not held420
Miami Center (ZMA)Not held411
Oakland Center (ZOA)Not held320
San Juan Center (ZSU)Not held320
Seattle Center (ZSE)Not held210
Indianapolis Center (ZID)Not held101
Memphis Center (ZME)Not held110
Albuquerque Center (ZAB)Not held200
Anchorage Center (ZAN)Not held100
Denver Center (ZDV)Not held100
Fort Worth Center (ZFW)Not held100

Aircraft at the airport

Peak 23 on the ground, 0 holding nearby.
012234:30 PM6:05 PM

On the ground Holding nearby

Timeline

Every change published while the ground stop was in effect, as seen each minute.
  1. Ground stop issued at JFK for thunderstorms, until 5:15 pm EST. Departures held from ZDC, ZNY, ZOB, ZBW.

  2. Extended until 6:00 pm EST.

  3. Scope widened: departures now also held from ZAU, ZTL, ZJX, ZID and 1 more.

  4. New advisory issued.

    Read the advisory ↗
  5. Extended until 7:00 pm EST.

  6. Scope narrowed: departures from ZAU, ZTL, ZJX, ZID and 1 more released.

  7. New advisory issued.

    Read the advisory ↗
  8. Ground stop ended after 2 hr 38 min.

Advisories

The air traffic control advisories issued for this ground stop, as published.
ATCSCC ADVZY 150 JFK/ZNY 11/12/2026 CDM GROUND STOP
CTL ELEMENT: JFK
ELEMENT TYPE: APT
ADL TIME: 2242Z
GROUND STOP PERIOD: 12/2134Z - 13/0000Z
CUMULATIVE PROGRAM PERIOD: 12/2038Z - 13/0459Z
DEP FACILITIES INCLUDED: (Manual) ZDC ZNY ZOB ZBW  CYHZ CYOW CYUL
 CYYZ CYTZ CYQB
PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 3639 / 387 / 89
NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 5892 / 366 / 144
PROBABILITY OF EXTENSION: MEDIUM
IMPACTING CONDITION: WEATHER / THUNDERSTORMS
COMMENTS: SCOPE ADJUSTED TO 1ST TIER + CZY.  ZTL, ZJX, ZID, AND ZAU
 GROUND STOP CANCELED A/C RELEASED AT OR AFTER EDCT
Original advisory ↗
ATCSCC ADVZY 132 JFK/ZNY 11/12/2026 CDM GROUND STOP
CTL ELEMENT: JFK
ELEMENT TYPE: APT
ADL TIME: 2154Z
GROUND STOP PERIOD: 12/2134Z - 12/2300Z
CUMULATIVE PROGRAM PERIOD: 12/2038Z - 13/0459Z
DEP FACILITIES INCLUDED: (2ndTier+CZY_AP) ZAU ZTL ZDC ZNY ZJX ZOB ZBW
 ZID ZMP  CYHZ CYOW CYUL CYYZ CYTZ CYQB
PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 1863 / 173 / 53
NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 3202 / 218 / 91
PROBABILITY OF EXTENSION: MEDIUM
IMPACTING CONDITION: WEATHER / THUNDERSTORMS
COMMENTS:
Original advisory ↗
ATCSCC ADVZY 116 JFK/ZNY 11/12/2026 CDM GROUND STOP
CTL ELEMENT: JFK
ELEMENT TYPE: APT
ADL TIME: 2107Z
GROUND STOP PERIOD: 12/2052Z - 12/2215Z
CUMULATIVE PROGRAM PERIOD: 12/2038Z - 13/0459Z
DEP FACILITIES INCLUDED: (Manual) ZDC ZNY ZOB ZBW  CYHZ CYOW CYUL
 CYYZ CYTZ CYQB
PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 602 / 113 / 25
NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 1775 / 173 / 74
PROBABILITY OF EXTENSION: MEDIUM
IMPACTING CONDITION: WEATHER / THUNDERSTORMS
COMMENTS:
Original advisory ↗

How it is measured

Data sources are listed on the credits page.