Red Sky at Night: The Science of Sunsets
A meteorologist explains why the sky is sometimes so colorful.
"So conversely, could local weather forecasters predict a pretty sunset?
Yeah, you can forecast them to a certain degree. I guess it's a question of who cares—maybe filmmakers or photographers would find that information useful, but most people just want to know if it's going to rain or not.
Why are sunsets sometimes more dramatic after a major storm?
There's often a slanting band of clouds on the back side of the departing weather system, and that can act as a sort of projection screen for the low-sun colors, better than a horizontal band would. The slant means it captures more of the orange and red light, and if the cloud is thin enough, it will reflect those colors down to you. Also, storms wash a lot of the big particles out of the air."
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