Warning as heatwave to end with 'bang' as dramatic weather shift confirmed

The UK's mini heatwave is set to end dramatically as 30C temperatures will be replaced by thunderstorms over the weekend. The high temperatures and humidity are expected to fuel the atmosphere, leading to a volatile end to the hot spell.

The scorching sunshine is predicted to last until Friday when the heatwave will break into a heavy downpour.

Jim Dale, a meteorologist for British Weather Services, commented: "There may be dribs and drabs of rain and thunder during the start of the week, but it is Friday when things are really expected to fall apart. There is the potential for some very heavy rainfall and thunderstorms, and this risk will last into the weekend. It is then likely to turn cooler, with Saturday looking like the real demarcation point between the hot spell and a return to more usual conditions."

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The rapidly increasing temperatures will cause heat to rise into the atmosphere, providing energy to fuel storms. Experts warn that high levels of CAPE (Convective Available Potential Energy) will drive the eruption.

Mr Dale added: "We are looking at the CAPE levels at the end of the week and into the weekend, and they are huge over Europe, and this looks like nudging into parts of the UK. This will lead to unstable atmospheric conditions, and consequently the risk of large thunderclouds and storms. In addition, on Saturday more conventional weather fronts will move into the UK, and this will add to the risk of unsettled weather."

Temperatures are set to rise rapidly, causing heat to ascend into the atmosphere and providing energy to fuel storms.

Long-range weather experts predict a significant increase in temperatures after the weekend, with scorching sunshine expected well into July.

James Madden from Exacta Weather stated: "The hot weather will temporarily ease across parts of the north around Thursday and Friday, with a "thundery breakdown" likely in parts."

"It looks favourable for high pressure to make a quick return and become quite influential on our overall weather pattern, and this would mean further warm to hot conditions developing around next weekend and during early July."