From the ABC 7 Weather team

A rare 'moonbow' and a Full Thunder Moon (VIDEO)

July 15, 2011 - 05:00 AM
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Each year, photographers flock to Yosemite to capture an ethereal weather phenomenon known as a "moonbow." Rainbow? No, moonbow.

Miss last night's Full Thunder Moon? Will you be satisfied with a warmed-over Thunder Moon from years past? In this case the answer has got to be yes, because this Thunder Moon footage includes a freakin' moonbow.

That's right: There doesn't need to be a blazing sun in the sky or even rain to create rainbows. (Read about how double rainbows are formed here.) A full moon and a mechanism to create floating spray – say, a geyser or waterfall – is sufficient to paint the sky with a Crayola pack of colors. And that's what happens each year if the weather elements align right in Yosemite National Park, where waterfalls swollen with runoff project ghostly moonbows through the wee hours of the night.

If you are heading to Yosemite this year, this website has a calendar of predicted moonbow times and locations. You might also try making a poor man's moonbow in your backyard with a flashlight and hose, although it might cause the neighbors to look at you funny. (More moonbow photos here, here and here.)

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