- “Barber pole” updraft column on a supercell thunderstorm
- W872428S
- A large laminar column of dark, low cloud carries air up into a supercell thunderstorm. The “barber pole” updraft is the entire rotating mesocyclone, surrounded by circular striations. There is no separate lowering; instead, the whole storm updraft base has become low. A line of scud marches from the rain toward the inflow column.
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