I always thought mammatus clouds meant a big storm was coming

I was reading a weather book from the library in Springfield and it said mammatus clouds often show up after a storm has passed, not before. I saw some last month over my house and sure enough, the heavy rain had already moved east. It really made me question the old saying. Has anyone else found that to be true where you live?

2 comments

2 Comments

valgibson4h ago

Yep, they usually mean the worst is over.

green.jessica4h ago

But what if it's just the calm before another storm?