Science:
Rainbows in Seattle

Rainbows need two things: the sun close to the horizon and rain. Seattle has both, and we get a lot of rainbows. In fact, our rainbow conditions are so good that we often get double rainbows.

If you want to see a rainbow, look away from the sun while there’s water in the air. If the sun is high, you have to look down at the ground, and you won’t see a rainbow. But if the sun is low, you’ll be able to look just below the horizon. A rainbow will be up to the right or left. If conditions are ideal, you’ll even be able to see a second, reverse rainbow outside the clearer one.

Rainbows do not exist the way that clouds exist. They’re entirely subjective, reliant on the position of the observer relative to the angle of the sun and water-soaked air. So do rainbows really exist?

—JoT
November 2005

top

art car at Burning Man 2005