- Mesocyclone and wall cloud with lightning at night
- L021345Z
- Wall cloud with lightning at night. Pink lightning contrasted with deep blue twilight light up a supercell storm. The bright areas are in the rain and higher, anvil parts which silhouette a large, thick mass of lower clouds. This is the updraft region of the storm, a rotating column of air (mesocyclone) with several distinct layers and a ragged, partly-formed wall cloud at the bottom.
-
+