LONDON, Aug. 4 (Xinhua) -- Britain is set to bask in sweltering temperatures once again this weekend as the heatwave hitting Europe turns to the UK with over 30 degrees Celsius, BBC Weather has warned.
The UK is currently experiencing a heatwave unlike any in recent memory, with beaches and parks packed and green lawns already turned into dry straw.
A nationwide split will bring fresher conditions to Scotland and the north although it will remain warmer than average everywhere.
Temperatures will drop marginally at the weekend in some parts of the country although the brief respite will give way to an even hotter blast next week, forecasters warn.
A level-2 Met Office-Public Health England (PHE) heat health advisory is in force across southeast England until Monday morning although it is likely to be extended.
The mercury could touch 36 degrees Celsius in parts next week with even the all-time record of 38.5 degrees Celsius under threat.
Temperatures will rocket around 10 degrees Celsius over the next 24 hours as a flaming heatwave gripping the continent arrives on the doorstep of Britain.
Across the UK there were isolated thunderstorms, lightning and rain showers over the weekend starting on July 27.
This led to a few days of much cooler and more pleasant temperatures, with thermometers hovering around 20 degrees Celsius for much of the country.
But from July 31 the temperatures began climbing again with the UK expected to once again experience 30 degrees Celsius plus over the weekend of Aug. 3-5.
After that, it is expected to drop down again with more rain and cooler temperatures predicted later the following week
Hot temperatures are not uncommon in Britain during summer, but usually, it is mixed in with cooler and wetter days as unsettled weather fronts move in from the Atlantic.
This is because the jet stream -- strong winds high in the sky from west to east -- shift about.
If it is north of the UK and Ireland then hot weather can result.
If it moves down over the country, that means low-pressure systems (wet and mild) are sucked the way.
But this summer the jet stream has been jammed to the north of the UK and Ireland.
This creates the conditions for high pressure to develop -- and that means hot and dry weather.
The UK has been experiencing hot weather since April. But the current summer heatwave began on June 23.
A month later it was still frazzling the south of England with grass becoming straw.
