Spectacular thunder and lightning shows were witnessed across the UK - by some estimates there were as many as 30,000 lightning strikes.
The image above from LightningMaps.org shows just some of them from midnight on Friday.
Worst #thunderstorms I've ever seen across #Dorset tonight, lots of flooding so be careful out there people. pic.twitter.com/ROEmPKQMzL
โ Dorset Van Driver (@viewfromthevan) July 3, 2015
I am sooo terrified of thunder so last night in London was absolute hell, I was in tears in bed!! #thunderstorms #London
โ Aisling Sheehan (@Aisling_S101) July 4, 2015
Comment: The storms have claimed three lives after two hill walkers were struck by separate lightning bolts and a boy died after getting into trouble in a river.