Kenebec, SD Supercell

June 11, 2003

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.