popcorn storm n. a brief, unexpected rain shower or thunderstorm. Also, collectively and more formally, popcorn convection. (source: Double-Tongued Dictionary)
Further reading
Alan Connor serves as crossword puzzle editor for The Guardian, and his new book is a word lover’s delight. It’s called 188 Words for Rain: A Delightfully Damp Tour of the British Isles Led by Natural Forces (Amazon). The book opens 7,000 feet above...
If someone tells you it’s flisky or flobby outside, do you need to take an umbrella? A new book about England’s soggy climate includes 188 terms for rainy weather. Americans have their own joking names for local weather, from June Gloom in Southern...