A small but heavy area of freezing precipitation has moved from Southwest into Central Oklahoma this evening, with over 1/4 inch ice accumulations possible where the heaviest thunderstorms reside. Temperatures are in the upper 20s to lower 30s across the region, with warm advection and relatively warm temperatures moving northward just above the surface. The result is a textbook freezing rain event including the OKC Metro area. A radar loop from around 8:30 pm CST is shown below:


Winter storm warnings have been issued over West Texas and western Oklahoma for this initial wave of precipitation tonight, and for heavy snowfall in association with the upper storm system tomorrow. Moderate ice accumulations are expected over southwest into central OK this evening, with 4+ inches of snow likely by tomorrow night across the TX Panhandle and Northwest OK.