There have been several 'atomic' glow photos posted earlier in the thread.
Here are two photographs I don't remember seeing before.
below: The bright flash of a Nevada test reaches Los Angeles, circa 1955.
uscdl
below: Atomic blast in the early hours of May 5, 1955. Notice the two mysteriously parked cars in the foreground.
My guess is that the car on the right belongs to the photographer.
uscdl
below: I googled and found out this test was named Apple-II, May 5, 1955.
ats/a_bw