Why Does The Sky Sometimes Flash Green At Sunset? - Videos from The Weather Channel

Why Does The Sky Sometimes Flash Green At Sunset?

June 27, 2025

You may have heard of the green flash as a superhero or even as an omen that a soul has returned from the dead (any Pirates of the Caribbean fans out there?). Still, it’s a real optical phenomenon, even though it’s just an illusion. Here’s how it happens and how to see it.