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The FIA has formally declared that a "rain hazard" will be in place for the Miami Grand Prix as the threat of severe thunderstorms looms over the circuit.
With consistent weather forecasts showing heavy and persistent thunderstorms, discussions are currently taking place regarding moving the start time of Sunday's race forward from its original 16:00 local time slot. The urgency of these discussions is underscored by the fact that the heavy rain could make racing impossible, a scenario reminiscent of the 2025 Sprint, which was delayed owing to similar conditions. As heavy thunderstorms threaten to disrupt the 2026 Miami Grand Prix, the paddock is bracing for significant logistical challenges.
Under US law—and as often seen in other American motorsport categories like NASCAR and IndyCar—any outdoor sporting event is covered by a strict eight-mile lightning radius rule.
This regulation dictates that if there is a lightning strike within that specific radius, the event is immediately suspended, triggering a 30-minute countdown. If there are no further strikes within the radius during that half-hour window, the race can then resume. However, if another strike occurs even at 29 minutes and 59 seconds into the countdown, the clock resets entirely to 30 minutes. This process is repeated until a full 30 minutes has passed without a single lightning strike within the eight-mile zone. Understanding what happens if lightning strikes is crucial for teams managing race strategy under these extreme conditions.
Formula 1's sporting regulations dictate that if the official weather service predicts a forecast of rain for the race being higher than 40%, a rain hazard will be declared.
Specifically, Article B1.5.11 states that the rain hazard must be declared "no later than two hours" before the start of qualifying and must "remain in force" from the moment of declaration until the "end-of-session" signal for the race is shown.
Following this strict protocol, FIA race director Rui Marques issued the official signal at 13:17 local time. This declaration came exactly 2 hours and 43 minutes prior to the scheduled start of qualifying at 16:00 local time, ensuring full compliance with the regulatory framework as the sport prepares for a potentially chaotic weekend.
He’s a software engineer with a deep passion for Formula 1 and motorsport. He co-founded Formula Live Pulse to make live telemetry and race insights accessible, visual, and easy to follow.
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