My father was there at Trinity. He was stationed at White Sands to train pilots. That morning he was taking up a group for practice in formation-flying. They were rolling out when they were suddenly told to stop where they were & cut engines. My father said it was as if the sun had risen in an instant & he could see every rivet in the plane.
My mother was at home 20 miles away, & heard the explosion. Of course, they were told an ammo dump had exploded.
White Sands would provide some spectacular sun rises for those of us in Arizona.