Thunderstorms prompted the FAA to halt some flights bound for Miami and Fort Lauderdale-Hollywood international airports Monday morning, November 2. Both ground stops were scheduled to run through 11 a.m. Eastern, or 8 a.m. Pacific, according to the agency's Miami advisory and Fort Lauderdale advisory.

The FAA rated the probability of extending each stop as medium. The listed end time is therefore a planning window, not a promise that an individual flight will depart at 11 a.m.

A ground stop holds affected inbound flights at their departure airports. These advisories apply to selected departure facilities and include route exemptions. They do not announce that either airport has closed or that every flight has been canceled.

The FAA's national status page, updated at 10:14 a.m. Eastern, still listed both stops.

Travelers should check their airline's flight status and rebooking options before changing plans. A ground stop alone does not establish whether a particular ticket qualifies for a refund.

Under the Transportation Department's refund rules, a passenger whose flight is canceled can receive a refund regardless of the cancellation's cause if they decline alternative travel, travel credits and other compensation. Refunds also apply to qualifying significant delays or changes when the passenger chooses not to travel and declines those alternatives. The timing thresholds include an arrival at least three hours late for a domestic trip or six hours late for an international trip.