- Cumulonimbus cloud type sequence: an anvil spreads out and freezes
- W005912Z
- Cloud type, Cb: a Cumulonimbus cloud with grayish anvil crown. The anvil continues to spread out, flatten, and slowly freeze. A bank of lower Cumulus with bright tops appears to be part of the storm, but is actually much closer and detached, and likely formed on outflow air from the storm beyond. (2 of 3 in sequence)
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