It has been an interesting morning with freezing drizzle, some snow showers, and lots of cold air advection. We do have a few updates to share with you after watching trends over the last few hours.

• The Winter Weather Advisory has been expanded south and now includes most of the D/FW Metroplex (Tarrant/Dallas counties were excluded earlier, but are now included). The timeframe should be 6 AM through noon for freezing drizzle and potential slick bridges.
• A new Winter Weather Advisory is in effect for this afternoon through Monday morning in Southwest Texas – places like Van Horn, Alpine, Sanderson, Fort Stockton, to Pecos. Y’all will be dealing with freezing drizzle and the potential for hazardous road conditions tonight.

415AM: Winter precipitation including light snow is moving south out of OK into N TX. Meanwhile freezing drizzle is increasing north of the DFW Metroplex. Bridges may become icy soon. #txwx #dfwwx pic.twitter.com/JiRYzWPhvR

— NWS Fort Worth (@NWSFortWorth) December 31, 2017

• A few snow showers dumped a quick dusting of snow in parts of Northwest Texas this morning, and a band of light snow formed up in Central Oklahoma. That band of snow from Central Oklahoma is now moving south toward the Red River. It is possible it could move south into Texoma and North Texas later this morning. There could be a dusting of snow, but significant snow accumulations are not expected. However – temperatures in the 20s will allow that snow to accumulate on most surfaces, so we’ll have to watch for some slick spots.
• Freezing drizzle will start to end from north to south this morning as drier air filters in from the north. This has already taken place in the Panhandle where dry, bitter arctic air is pushing in. This process will expand south and will bring a second, more unpleasant surge of very cold air in time for New Years Eve evening.
• Most locations receiving freezing drizzle today will not rise above freezing until Tuesday, perhaps Wednesday in some spots. Don’t expect there to be a vast improvement today in bridge conditions if ice forms in your area.
• The bottom falls out tonight and on Monday with dangerously cold wind chill values.

Jenny will have a full blog update in her usual weekend Texas Weather Roundup at a more civilized time later this morning. Remember: Take it slow if you’re below freezing and have precipitation this morning. The main impact for everyone will be tonight and Monday when it is nasty cold.