We’ve had some unusual reports of ice pellets (sleet) coming in this weekend. Even though temperatures have not been close to freezing, we still picked up on some isolated pockets of sleet. The reason for this is rain is falling through a very dry layer of air. The very dry air causes the rain to freeze because of evaporation, and it doesn’t have time to melt before reaching the ground. A very interesting scenario and a rare one at that!
Source: http://www2.wkrg.com/weather/2012/feb/25/chilly-side-wf-7906/
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