This renewed talk of building nuclear weapons here in the US reminded me of an old report of photos of the sky glow from nuclear tests done in Nevada seen over Los Angeles. This one includes the following description:
Atomic explosion, the largest yet set off on the Nevada test range, was clearly visible in Los Angeles. Staff photographer Perry Folwer was ready with his camera on a tripod on the roof of the Herald-Express building when the blast occurred at 5:49 a.m. Reporter Jack Smith, points towards the great white flash that clearly silhouetted mountains to the east. The brilliant spectacle was seen by many early-rising residents of Los Angeles. Photo dated: February 2, 1951.