Summary

There are a number of parameters that may be assessed to help forecast precipitation type at a given location. These include thickness, wet-bulb temperature, existence, strength and depth of a warm layer (T>0°C) above the surface, depth of the cold layer (T<0°C) near the surface, and surface temperature, just to name a few. At times, these parameters may produce disagreement, underscoring the importance of evaluation of the entire sounding (either observed or from a forecast model) to adequately assess and forecast winter precipitation type.

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