What Is A Fog Bow?

Tools

By By Steve Pool

SEATTLE - While rainbows are quite common around here, fog bows are more rare.

Fog bows are generally seen as an arc of dense fog along the edge of a fog patch. The physics is somewhat similar -- in that the bow is caused by sunlight refracting inside water droplets.

However, unlike rainbows, where the raindrops are large enough to refract sunlight into its individual colors, the water droplets in a fog bow are much smaller, and so the refractions aren't as precise.

Thus, the way the light scatters from a fog bow, you get a lot of color overlapping, and more of a hazy white bow instead of the colorful rainbow.

If you've never seen a fog bow, we have a photo of one posted on the Ask Steve Web site.

For More Information:

www.sundog.clara.co.uk

Your Photos

YouNews Up! Up! And away! Up! Up! And away!
When I saw this dramatic cloud to the north, it reminded me of smoke, rising in billows until it hits the jet stream, then it's pulled hundreds of miles east. I had to capture it quickly. Within minutes the effect had faded.
YouNews Inside an osprey nest Inside an osprey nest
For my girlfriends birthday we had a party at her parents. We knew the nest was there but the owner hadn't seen or heard the osprey for a day or two. He asked me to fly my drone up and see if any was wrong. I flew up and found that there were two eggs inside.
YouNews Our Garden Our Garden
The growing season has been great.

The secret to this garden is simple.
I used recycled grass clippings.