Britain’s meteorological agency issued its first-ever extreme weather warning, forecasting that the mercury could climb to 33°C later this week, writes Euronews.

The Met Office said the Amber Extreme Heat Warning covers all of Wales, all of southwest England and parts of southern and central England.

It will be in force until the end of Thursday.

The UK has been under heatwave conditions in recent days but temperatures will climb further this week, possibly reaching 33°C in some western parts, the Met Office said.

These “unusually high temperatures” as well as “continuing high nighttime temperatures” can have potential impacts for heath, it noted.