The amber warning is in place for a large chunk of Wales, all of south-west England and a few parts of southern and central England.
The Met Office’s chief operational meteorologist, Steven Ramsdale, said:
“Many areas will continue to reach heatwave thresholds but the amber extreme heat warning focuses on western areas where the most unusually high temperatures are likely to persist.”
⚠️⚠️ Amber Weather Warning issued ⚠️⚠️
Extreme Heat across parts of South Wales, West Midlands, southern and southwestern England
Valid until 23:59 Thursday
This is the first ever Extreme Heat Warning issued#Heatwave
Latest info 👉 https://t.co/QwDLMfRBfs
Stay #WeatherAware pic.twitter.com/bTHUyFL6uL— Met Office (@metoffice) July 19, 2021
The warning is the first under the Met Office’s new extreme heat warning service which launched last month.
The warning is expected to be in place until the end of Thursday.
The warning advises that high temperatures both day and night will continue this week resulting in public health impacts.
The warning reads: “The current hot weather is expected to continue until later this week.
“High temperatures are expected both by day and by night, peaking Thursday before temperatures fall on Friday.”
The extreme heat warning is in force from 4.05pm on Monday, July 19, until 11.59pm on Thursday, July 22.