AUSTIN: The upcoming United States Grand Prix was declared a heat hazard event on Thursday, making it the second race in succession to be labelled as potentially dangerous by ruling body the International Motoring Federation (FIA).
In a statement, race director Rui Marques said an official weather forecast had predicted a heat index higher than 31°C during Saturday’s sprint and Sunday’s Grand Prix race.
The announcement, which was also made at the Singapore Grand Prix two weeks ago, enables a rule that allows drivers to take up an option to wear cooling vests that circulate cool liquid to control core body temperatures in their cars.