RESIDENTS are being warned to expect thunderstorms and heavy rain over the coming days..
On Tuesday morning, Hastings saw 13mm (0.5in) of rain fall in one hour, while 10mm (0.4in) was recorded at Sandhurst, the Met Office said. Express.co.uk brings you the latest Glastonbury weather forecast.
Weather experts are urging people in affected zones to take caution under the safety warning and brace for the brutal rainfall.
The threat of heavy rain faces nearly the entire country for 24 hours - with many areas being put on high alert for 48 hours, according to the Met Office weather map.
Thankfully, sunnier climes aren't far behind as Met Office Chief Meteorologist Dan Suri assures Brits the heatwave is on its way.
Temperatures are expected to rocket sharply after the lively weather moves through with up to 27C expected in parts of the south on the afternoon.
"Sun cream and sunglasses as #UV levels will be very high and temperatures are likely to peak in the low thirties celsius".
High humidity on Monday and Tuesday is being blamed for sparking the thunderstorms, and will result in muggy conditions for many, with overnight highs of 19C possible throughout the week.
But as we know, hot and humid atmospheres are usually a marker of heavy thunderstorms.
"During the day there is then a small risk of potentially severe thunderstorms developing over land".
"There is a small chance of fast flowing or deep floodwater causing danger to life".
"So the early morning commute could be challenging, especially in areas north of London as that's where the heaviest rain will be at that point".