A heat warning has been issued by the Meteorological Service and the UK’s Health Security Agency (UKSA) as temperatures will rise to 34C later this week.
The forecaster said that level 2 was issued for a warning for the South and Central England from midnight on Friday to midnight on Sunday, with a lower level 1 for a warning for the North of England.
The warning system is designed to help healthcare professionals cope with extreme temperatures.
The Meteorological Service warned earlier this week that the British should prepare for heat waves in the coming months, amid previous weather forecasters showing that they are becoming more likely due to climate change.
Forecasters said the southern part of the UK could reach 30 ° C (86F) and even 34 ° C (93F) in the southeast, while temperatures in the northeast and northwest are expected to rise to 28 ° C (82F). .
The highest temperature reached in the United Kingdom so far this year was 27.5C (81.5F) in Heathrow on May 17.
Deputy Chief Meteorologist Dan Rudman said temperature forecasts were unusual for this time of year.
“Many areas will also see warm nights with minimum temperatures that are expected to be high for teenagers or even low 20Cs for some at night,” he said.
“The heat is the result of a mixture of domestic warming during the day due to high pressure, as well as southern airflow, which brings some of the warm air from the continent to the coast of the United Kingdom.
Heat is defined as three consecutive days with maximum daily temperatures that reach or exceed the temperature threshold of the heat wave. The threshold is different in each county.
In March, heat wave thresholds were raised in eight counties by the meteorological service in response to the warming climate, which made the original thresholds obsolete.
Agostino Souza, Head of Extreme Events and Health at UKHSA, said: “Temperatures are forecast to reach 30C in some parts of the south on Friday and we want everyone to enjoy the hot weather safely when it arrives and is aware of good health tips for dealing with warmer conditions.
“During periods of hot weather, it is especially important to continue to check on those who are most vulnerable, such as the elderly and those with heart or lung disease.
A spokesman for the Environment Agency said there was a low risk of drought, but warned that further hot and dry weather could put pressure on some areas.
NHS hot weather tips suggest people stay out of the sun between 11:00 and 15:00, get hydrated, use sunscreen and wear loose clothing.
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