F1's Miami schedule in doubt amid storm threat

The 2025 Miami Grand Prix, scheduled to start at 4 p.m. Eastern time on Sunday, faces potential disruption due to forecasts of heavy thunderstorms in the area around Hard Rock Stadium. Florida's '30-minute rule' requires outdoor sports events to halt immediately upon thunder or lightning and not resume until 30 minutes after the last strike, which could significantly delay or prevent completion of the race. Formula 1 has the benefit of the FIA's advanced weather forecasting equipment to help manage the situation.