Winter Wrapup 5

22° degree halo around the sun, Gorham, NH, March 10, 2015.
22° degree halo around the sun, Gorham, NH, March 10, 2015.

Halos around the sun and moon are caused by high, thin clouds of ice crystals. Of course, I’ve learned that you don’t have to fly to 50,000 feet to find ice crystals around here, even in March.

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