The warm and dry weather of spring is becoming a distant memory as a deluge means some parts of the UK are experiencing over one-fifth of their expected monthly rainfall in just six hours.
The South East bore the brunt of the showers, with 17mm recorded in Woking, Surrey, from 6am to noon on Thursday, and 13mm in St James's Park, London.
Some 11mm of rain drenched Heathrow, west London, where the average total for the entire month of June is 51mm.
Elsewhere heavy showers delayed the start of England's cricket match against Sri Lanka in Southampton, while an area to the east of Alnwick, Northumberland, saw 11mm of rain.
Lindsay Dovey, forecaster with MeteoGroup, said rain would continue to fall in the South East on Friday.
These conditions are in stark contrast to the balmy spring enjoyed by many.
Across the whole of England and Wales it was the second driest spring since 1910 and the driest spring since 1990.
Overall, England and Wales had only 45% of the long-term average rainfall for March, April and May. But East Anglia had only 21%, giving the area the driest spring for 101 years.