Storm initiation northwest of Presho, SD
Storm develops a wall cloud (between Presho and Kennebec)
Rounded base, vault, and RFD occlusion with developing funnel.
Weak, broad funnel develops while DOW3 detects F0 (20 m/s) circulation beneath it at ground level.
Updraft base (lower left) and vault area (upper right) of this supercell.
Nice bowl-shaped updraft base.
Rotating scud-like clouds with narrow RFD wrapping around.
DOW3 reported a tornado (45-50 m/s winds) under this feature.
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