Thunderstorms are predicted for parts of the UK
The Met Office has issued its first ever thunderstorm warning, with torrential rain, hail and lightning possible on Sunday.The yellow "be aware" warning for South West England and South Wales and will be in effect from 6am to 10pm.
It comes as the UK continues to swelter in the grip of a heatwave that is expected to last for several more days.
The Met Office said the heavy rain could lead to flooded homes and businesses and difficult driving conditions.
Forecasters said: "Some 30mm-40mm of rain in an hour is possible."Where surface water flooding or lightning impacts do occur they are likely to be in only a few places rather than across the whole warning area.
"The greatest chance of impacts is in the afternoon, with the risk decreasing again on Sunday evening."
About a week ago, the Met Office announced that it was bringing in two new types of weather warnings - one for thunderstorms and the other for lightning.This is the first time the thunderstorm alert has been officially put out.
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