on the afternoon of August 17,
2004, a massive thunderhead
formed over Southern
Desert―not far to the
southeast of Borrego Springs.
As the cloud was struck by reddened light from the
setting sun on
the opposite side of the sky, it
burst into view like an atomic
blast. The cloud was so
immense that it was noticed from more
than 70 miles away, and required
five wide-angle images stitched
together to capture it all.