Overview
- The FIA forecasts extremely heavy rain with an 80% chance of showers reaching Interlagos until 09:00 local time, plus strong gusts of about 75 km/h for the sprint and 65 km/h for qualifying.
- Meteorological warnings point to an extratropical cyclone capable of 30–60 mm of rain per hour and winds up to 100 km/h in Greater São Paulo, raising risks of flooding, falling trees, and power outages.
- State civil defence authorities have activated alerts and emergency coordination teams as lightning and localized flooding remain possible around the circuit and travel routes.
- The sprint is identified as most vulnerable to disruption, and under FIA rules any delay must preserve a three-hour gap before qualifying, with options including moving qualifying to Sunday if needed.
- If qualifying cannot be held, new rules set the race grid by championship order, while Sunday currently looks less threatened though forecasters caution conditions remain unpredictable.