Somewhere on the US Plains, July 2003

Photographed by Mike Hollingshead, a photographer who is world-class when it comes to atmospheric manifestations on the Central Plains part of the US (though I’m not meaning to exclude whatever else it is he photographs).
photo source: ExtremeInstability (no link because google says the site has been flagged as possibly hosting malware.  It seemed fine only a couple of days ago, so perhaps it will be again soon.)