Seeing the green flash is like seeing a ufo. If you do see one, no one else believes you and secretly thinks you are a little off. However, I have seen a few on the west coast of Oahu, the conditions seem to be very clear skies, no dust, and it lasts not even a second, and what I saw was a pale green, like part of the light spectrum. It squeezes out in the last millisecond, then gone. I recently watched nearly 60 sunsets, and saw no more than 2 for sure. Hawaii has some of the clearest air around, so maybe that has something to do with it. And, several glasses of wine help the vision.
