The UK meteorological agency first issued a nationwide red warning when many regions of the country could record a record high heat level.

According to the announcement of July 15 of the Weather Forecasting Agency (Met Office), the temperature of July 18-19 in many regions nationwide, including the capital London, will touch the record level,

Night temperature will also be abnormal, especially in urban areas, Paul Gundersen, meteorologist of Met Office, said.

A cooling family at the fountain in Queen Victoria Square, Kingston Upon Hull, England.

The Red Warning of Met Office is considered a national emergency, activated when a serious and prolonged heat wave can cause healthy people to die.

The British health agency (UKHSA) also raised the warning to level 4 early next week.

The highest temperature ever recorded in the UK is 38.7 degrees Celsius, measured at Bach Thao garden in Cambridge University on July 25, 2019.

Most Europe is experiencing extreme heat, many places even exceeding 40 degrees Celsius, outbreaking large -scale forest fires in Portugal, Spain, France and Croatia, some places

Scientists say thermal waves are happening more often due to climate change.

Western European countries continue to suffer heat during the second heat wave of summer, causing the temperature of some places to 44 degrees C.