Click to enlarge

Circumhorizontal arc over Spokane, June 2, 2006

Tools

This story should be flagged for moderation. Please choose from one of the following options:

Circumhorizontal arc over Spokane 6/2/06

by glowen (Subscribe)

Posted on: Oct 31, 2009 at 2:22 PM PST

Channel: Weather & Scenery

Rare event caused by sunlight passing through high altitude rotating ice crystals. Occurs under special conditions--near midday, around the summer solstice, and mid latitudes. This lasted at least an hour, photographed on Sunset Hill west of downtown Spokane. More info on this "rainbow" can be found at the Atmospheric Optics web site http://www.atoptics.co.uk/halo/chaform.htm

Add a comment

Name:

Comment: 250 Characters Left

570KVI and its affiliated companies are not responsible for the content of comments posted or for anything arising out of use of the above comments or other interaction among the users. We reserve the right to screen, refuse to post, remove or edit user-generated content at any time and for any or no reason in our absolute and sole discretion without prior notice, although we have no duty to do so or to monitor any Public Forum.