The National Weather Service has downgraded the Winter Storm Watch to a Winter Weather Advisory for 1 to 2 inches of very wet snow with locally higher amounts up to 4 inches under the heaviest bands. The Advisory will cover all counties within the forecast area. The latest data suggests the heavier snows will now be off to our northeast. Thus, the requirement of widespread 4 inches or more of snow for a Winter Storm Warning will not be met. This appears to be a minor headache event and will not cause high impacts to travel. Temperatures, with adequate late winter sunshine, should warm rapidly above freezing tomorrow afternoon melting any snowfall.

The National Weather Service has expanded the Winter Storm Watch to cover all counties within our forecast area. Thus, Ellis, Johnson, and Rockwall were added to the Watch. The Winter Storm Watch is for the potential for heavy wet snow tonight. 2 to 4 inches with locally higher amounts can be expected.

The upper-low that ejected two disturbances across Texas that brought rain, freezing rain, and sleet to the area yesterday and today will eject directly across North Texas. This is a cold-core upper low that will cool thermal profiles all the way to the surface sufficiently to support snow. Depending on the exact tract of this low, heavy bands of convective snow will develop across North Texas. As a result, the National Weather Service has issued a Winter Storm Watch for heavy snow for Tarrant, Dallas, Denton, Collin, Wise, Ellis, Johnson, Kaufman, and Rockwall in our forecast area. The Watch is for Tuesday night into Wednesday morning as the best chance to see accumulating snowfall.

In the short-term, temperatures remain in the mid 20s across the area. Any residual water or slush on roads will refreeze tonight as temperatures drop into the lower 20s. In addition, patchy freezing drizzle may develop across the area glazing roadways with a thin glaze of ice. Residents are urged to proceed with extreme caution when heading out tonight or in the morning.