Sky Diary 26 May 2013 Nebraska supercell - 2013-05-26 at 21-45-38

Caption: And it's still going! Photo by Chris Kridler, ChrisKridler.com, SkyDiary.com
Aperture: ƒ/5
Shutter Speed: 12.2s
Date: 5/26/13 9:45:38 PM CDT