06-25-06 – my front porch. Please ENLARGE! Compton, Illinois, USA. Fuji FinePix E550.
During another massive thunderstorm, this cloud bank began to “roll” downward toward my neighbor’s place. A small tornado was spawned by this particular storm, but it passed about 4-5 miles south of us. This pic was a few moments before the ‘horizontal hail’ arrived!
I’ve since discovered that this is a “roll” cloud…and that this photo will soon be featured on NASA’s Earth Science site as a Pic of the Day. :))