- Supercell storm cloud overview showing circular updraft base
- W001353S
- Supercell storm cloud overview. The compact, circular updraft base of a classic supercell stands out as a dark area with a large, ragged wall cloud below it. The rising air rotates through the mesocyclone high into the atmosphere, dropping heavy precipitation at right. Outflow air from the right and back of the storm meets the ambient inflow winds under the dark base.
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