- A back-building supercell storm with a circular updraft base
- W030366Z
- A back-building supercell storm has put down a heavy rain curtain in the distance. This wide-angle view compresses the scene, dwarfing a very large circular updraft base that looks like a doughnut around the rain. Storm-scale rotation in the mesocyclone helps create this collar of cloud as warm air converges on the base and wraps around it as it rises.
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