Britain is enjoying warm weather thanks to a blast of tropical air from the Continent - however the humid blast is also set to bring torrential rain this week.
While Scotland saw heavy rain on Tuesday morning, the south of England is set for an inch of rain within hours on Wednesday.
Speaking to the Telegraph, Met Office forecaster Charlie Powell said: "We are expecting heavy rain and some strong winds as a low pressure system barrels in from the Atlantic."
He said that Tuesday would be warm with temperatures up to 23C in the south, but that Wednesday would see a return to wet and grey weather, especially in the south.
Weather forecaster Emma Sharples told the Daily Express: "We may see weather warnings for rain on Wednesday with up to 1.2ins likely in three hours in the southeast and this could lead to some surface water issues; we might also see thunderstorms moving up from France.
"Then for the rest of the week it is looking fresher and still unsettled in parts with some quite slow-moving rain forecast."
According to the Metro, she added: "Weather fronts from the Atlantic will affect the south east the most, including places such as London, Kent, Surrey and Sussex.
'Some areas could see as much as 30mm, 40mm, or 50mm in 12 hours. There are no weather warnings in place at the moment.'
Indeed, the Met Office forecast for Wednesday reads: "Rain most likely across central and south-eastern parts, heavy and possibly thundery later. Warm and humid in the southeast. Brighter and fresher, with sunshine and showers in the northwest."
The outlook for Thursday to Saturday reads: "A mixture of sunshine and showers, these likely to be heavy and thundery at times, especially in the north and west. Feeling fresher than recent days with some chilly nights."
Time to get the brolly out...