Taken in June 2007 at the height of the Minnesota tornado season. This was across the corn fields just west of La Sueur, MN. This is a classic non-rotating Wall Cloud. If you see one of these rotating do not stick around! I was about half a mile away, had the car pointed down the road with engine running.
The back lighting was stunning as was the dark boiling clouds in front of the wall. You can even spot the little skuds running across the whole formation if you have the tornado spotters eye for it.
A Wall Cloud is what forms just before touchdown which this one never did do because of no rotation to it.
Was using my original digital camera a Canon Rebal XTi . . . I pulled this from archives hoping that Topaz filters could bring it some pop!
Using 24mm at ISO 100 1/8th sec at f4.0 single shot with beanbag on roof of car
Post work done in Topaz Adjust3 and Lightroom 2.