This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Altocumulus castellanus Corfidi. en Castellanus sprouting from layer of cloud produced by forced ascent above an expanding thunderstorm outflow Norman OK CDT August looking south southwest fr Castellanus bourgeonnant audessus d'une couche nuageuse provoqu par une ascendance de type forage dynamique audessus d'une goutte froide