More to explore:
Norfolk Nebraska clouds before the storm.... 4/14/2012
Nebraska - Storm 8/7/11
Photo by Adam Brown.
Colourful night by Garry - www.visionandimag..., via Flickr
Flint Hills near Alma, Kansas, taken by Orville Courtney
Tornado, Hari Hari, West Coast, New Zealand.
Taken by Teddy, September, 2007.
Hammerhead (tornado) by Opticoverload