As Gavin Pretor-Pinney from the Cloud Appreciation Society busily sifts through the many photo entries this week we are pleased to announce that next week's guest judges are John Hammond and Sara Thornton from Weathertrending. Both are familiar faces on British TV and experienced meteorologists.
As always the competition is brought to you in conjunction with The Royal Meteorological Society.
So get your entries in before Friday lunchtime and let the experts judge your photos! Entry details can be found below.
How to enter the StormHour photo competition:
1. One image per Tweet
2. Send Tweet to @StormHour
3. Use hashtags #StormHour & #POTW only
4. Briefly describe photo & location
In association with The Royal Meteorological Society @RMetS