June 12th, 2007 South Dakota Supercells
Last Updated on Monday, 04 January 2010 21:01 Written by Roger Hill
June 12th was the worst of nightmares weatherwise. Great shear was all the was present this day, as too many overnight thunderstorms would not allow much instability to form. Storms formed along a boundary, with no cap, and became outflow dominated quickly. Too many storms would form from Nebraska, northward through North Dakota. Despite several tornado watch boxes, no decent tornadoes developed this day. The images here were taken within 50 miles of Murdo, SD.
Shelf cloud as one supercell gusts out in front of us. |
A new updraft rotates as the storm blasts north of us. Notice the clear slot, and precip wrapping around the lowering. This TRIED hard! |
Zoomed in shot of the previous picture. |
Funnel cloud formed and rotated vigorously for about 3 minutes. |
Cloud bases were nearly to the ground as lack of daytime heating kept temp/dewpoints spreads in check. |
Low level mesocyclone rotates wildly as it passed overhead. I thought this one might do something, but it never did. |
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