- Cool, unstable air, with many shower clouds and a Cumulonimbus
- W003123Z
- The edge of a Cumulonimbus anvil cloud brings change to a summer sky. Cool and unstable air leads to many shower clouds. None are very tall but the convection is active here, with one heavier storm entering at right with a downpour. As fast as these clouds form and spurt upward, they also decay and evaporate again.
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