July 20, 2022: -On Tuesday, Britain recorded its hottest-ever day, with temperatures hitting a high of 40.2 degrees Celsius in southern England, according to provisional data from the Met Office.

On Thursday, the U.K.’s weather service figures showed Heathrow, near London, reached the recent high, surpassing the 39.1C set earlier in the day. A previous high of 38.7C was recorded in 2019.

Brits face the second day of an extreme heatwave, causing widespread disruption and raising the risk of wildfires.

“If confirmed, this will be the biggest temperature ever recorded in the U.K. Temperatures are likely to increase further through today,” the Met Office said on Twitter.

Temperatures are forecast to reach 42C in parts of England by Tuesday afternoon, according to the Met Office, issuing a red extreme heat warning. Health authorities insisted people take precautions, including staying indoors and drinking plenty of water.

The country is on high alert for wildfires, with the southeast of England in “very extreme danger,” according to the European Forest Fire Information System.

Many parts of Europe and North Africa are experiencing extreme temperatures, with wildfires breaking out in France, Spain, Portugal, Greece, and Morocco.