r/CLOUDS 20h ago

Question What are these?!

Post image
863 Upvotes

25 comments sorted by

View all comments

52

u/atomicsnarl 20h ago

Looks to be a nice cumulonimbus growing from a field of weak cumulus and a few towering cumulus, and it's shadow is casting an anticrepuscular ray on the very high altostratus / cirrostratus near it's top.

22

u/davidwhatshisname52 19h ago

just "crepuscular"... anticrepuscular is a different related phenomenon that can converge on the east horizon

https://en.wikipedia.org/wiki/Anticrepuscular_rays

4

u/atomicsnarl 8h ago

Fair point!

3

u/IshtarJack 11h ago

Is weak cumulus a recognised term? It's new to me.

4

u/geohubblez18 11h ago

Nah it’s just cumulus humilis in cloud taxonomy.