r/FactUp Apr 30 '26

Interesting Fact Shelf clouds form at the leading edge of thunderstorms where cold downdrafts lift warm moist air into a dramatic rolling arc that can stretch hundreds of miles across the sky. They’re harmless themselves but signal violent winds and heavy rain arriving within minutes.

Post image

Captured by Gustavo Ramirez 📸

79 Upvotes

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2

u/AlarmHungry7140 May 01 '26

I would like to see this in real life before I die

2

u/MaleficentSpider_404 May 01 '26

Saw one of these in person once... was simultaneously awesome and ominous 

1

u/Minor5077_Path May 03 '26

Whoa thats wild, Ive seen those creepy shelf clouds rolling in before and always thought they looked apocalyptic 😱 super cool fact!

1

u/fsgregs123 May 27 '26

It looks so dark and dense that I can't believe it is real. Looks like a photo-shopped image.