The Federal Aviation Administration (FAA) issued a ground stop at 4:32 p.m. on August 29, 2026, impacting flights arriving at Denver International Airport. The restriction applied to departures controlled by six air traffic centers, including ZLA (Los Angeles), ZLC (Salt Lake City), ZDV (Denver), ZKC (Kansas City), ZAB (Albuquerque), and ZMP (Salt Lake City area). The ground stop was set to last until 6 p.m. with a 30% to 60% possibility of extension.
Thunderstorms and Severe Weather Risk in Colorado
The ground stop resulted from thunderstorms in the Denver area. Colorado faced a marginal risk of severe weather on August 29, 2026, particularly in mountainous regions and
north of Interstate 70 (I-70), with potential for high winds and hail. Storms were expected to move through the Denver metro area and Northeast Colorado overnight, increasing the risk of severe weather in those locations.
Flight Delays and Operational Impact
The ground stop caused delays for both arrivals and departures at Denver International Airport. Flights originating from the six affected air traffic control centers were held from departing, contributing to congestion and operational disruptions at the airport. Passengers experienced delays as air traffic controllers managed the impacted airspace due to safety concerns from the adverse weather conditions.
There was a 30% to 60% chance the
ground stop could extend beyond the initially scheduled 6 p.m. end time, depending on ongoing storm activity across the Denver metropolitan area and Northeast Colorado. The FAA’s decision reflected attempts to maintain safety amid rapidly changing weather conditions on August 29.
