Ice Crystals

How would you describe the shapes of these ice crystals? Here are some images from the frosty morning we had yesterday along the Kirby Boardwalk. To me, the crystals have a barrel or cylinder shape. This is radiation frost, which usually forms on a night with clear skies and a good amount of water vapor in the air. The clear sky allows the air temperature to fall to the point where the water vapor changes to a liquid form, which then freezes on the surfaces of plants and other objects which are often close to the ground (your car windshield is an exception). The patterns and shapes of the ice crystals are interesting to observe up close, especially on fallen leaves. Most of these are from Kirby's hackberry and elm trees. #DoctorBot #LakeKirby

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