The Federal Aviation Administration issued ground stops at 10 U.S. airports on September 3, 2026, including LaGuardia Airport, as severe thunderstorms disrupted flights across the Northeast corridor for the third consecutive day. Ground stops require halting all departures from affected airports, which is more restrictive than ground delays that assign controlled departure times to flights.
LaGuardia Airport experienced average ground delays of 45 minutes during the storm activity. Newark, John F. Kennedy (JFK), and LaGuardia airports operated under ground-delay programs on the same day. Newark Airport faced peak average delays reaching up to two hours. Boston Logan Airport recorded 19
delays, the highest among U.S. airports during the ongoing thunderstorms. The disruptions extended to major cities including New York, Boston, Philadelphia, and Washington, affecting arrivals and departures throughout the tri-state area.
These flight interruptions coincided with the Labor Day weekend period, traditionally marked by high passenger volumes. Airlines responded by issuing travel waivers permitting passengers to rebook flights without penalties due to weather-related cancellations and delays. Flight operations remained impacted by the severe weather and regulatory restraints.
The storm system represents a rare multiday severe thunderstorm event affecting the Northeast and Mid-Atlantic regions continuously on September 1, 2, and 3.
Recent East Coast aviation disturbances have been compounded by similar weather events, including Tropical Storm Edouard in late August, contributing to cascading delays. Ground stops and ground-delay programs generate ripple effects by grounding crews and aircraft, prolonging disruptions after weather clearance.
The FAA maintained real-time monitoring of the National Airspace System through its status page, tracking ongoing ground stops and flight delays due to the severe weather. This closely coordinated approach reflects the agency’s efforts to manage air traffic flow under challenging meteorological conditions impacting critical Northeast hubs.
