Classic Freezing Rain Upper Air Sounding

In the below upper air sounding example, the precipitation would begin falling as snow, but would melt completely as it entered the warmer
layer.  Then with surface temperatures below freezing, the rain would freeze upon impact with the surface object.

For the freezing rain to become sleet or snow, the warm layer would need to cool to around freezing or below.

Classic Freezing Rain Sounding

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.