Marko Posavec Photography

Sun Halo and a Change of Weather

In the morning hours of April 2nd, a beautiful 22° halo decorated the sky around the Sun. This wonderful optical apparition is caused by refraction of light in ice crystals suspended within high altitude cirrus clouds.

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This phenomenon is often associated with the incoming change of weather. Actually, it’s these thin, high clouds that usually precede weather fronts – halos and other optical appearances are merely a side effect. The notion was verified in the evening when a sudden cold front burst in from the north, bringing high winds and some rain but, disappointingly, no lightning.

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