DECEMBER 31st, 2017 -- Sunday Night 11pm Update
The Winter Weather Advisory has expired for the Brazos Valley, but some slick spots are possible as temperatures have fallen below the freezing mark. Make sure you give yourself a little extra time to get to your destination.
Expect Temperatures to bottom out in the lower to middle 20s by the morning with wind chills easily falling into the single digits and teens.
Sunday Night Update
The National Weather Service has issued a WINTER WEATHER ADVISORY for Brazos, Burleson, Grimes, Washington, and Lee County until 10PM this evening.
A band of light snow will quickly move through the central and western Brazos Valley through the 10pm hour. Some slick/icy spots could develop from a quick dusting of snow. Some freezing drizzle and sleet is possible as well.
Light snow has been reported in Madisonville and Navasota with this band of snow.
If travelling, slow down and give yourself extra time to get to your destination this evening.
Sunday Evening Update
The National Weather Service has issued a WINTER WEATHER ADVISORY for Milam County until 9pm for freezing drizzle. Bridges and overpasses will be especially susceptible to a light glaze/ice this evening as temperatures fall below freezing.
Multiple accidents have been reported across the Waco area this evening and freezing temperatures are already in place in Milam county. If you have to travel, take it slow and give yourself extra time to get to your destination or just avoid traveling.
Be sure to exercise extreme CAUTION when out driving this evening, as any surfaces that are still wet from today's drizzle, especially elevated ones, like bridges and overpasses could develop a few icy spots through the late evening.
Areas just to our north in Waco are experiencing multiple accidents and slick roadways as temperatures have fallen below the freezing mark and some thin ice is developing on bridges and overpasses.
Sunday Morning Update
The National Weather Service has issued a HARD FREEZE WARNING from 2am to 10am Monday and a WIND CHILL ADVISORY from 3am to 9am Monday.
Overnight lows are forecast to drop to the 20s by sunrise Monday. Wind chill values are expected as low as the single digits to low teens to start the day.
The current forecast remains on track. The first push of cold air has arrived in the Brazos Valley. Temperatures will hold steady in the 40s through the day Sunday. After morning lows in the 20s, Monday temperatures are expected to struggle to get past 32°. Wind chill values at best are expected in the 20s through Monday afternoon.
Saturday Night Update
The forecast remains largely unchanged from earlier today. We're still expecting significantly colder air than we are used to as we ring in the new year.
We're still expecting temperatures to fall into the 30s for highs both Monday and Tuesday, with wind chills readings in the 10s/20s likely on both days.
Here's a look at the latest PinPoint Forecast Feels-Like Temperatures for New Year's Eve through New Year's Day:
Now, as far as the precipitation forecast goes, we are getting less concerned about freezing drizzle on New Year's Eve. It looks like drizzle and light rain should move out of the Brazos Valley before temperatures dip below freezing. The atmosphere dries out just enough to prevent any wintry precipitation (sleet, snow, or freezing drizzle) on Sunday night. While it cannot be entirely ruled out, the chances look extremely low.
Make sure to prepare for uncharacteristically cold air moving into the Brazos Valley this weekend. Multi-night hard freeze and significant wind chills are expected for the start of the New Year.
As of 11am Saturday, temperatures across the Northern US ranged anywhere from -23° in Minot, North Dakota to 5° in Chicago. Oklahoma City checked in at 19° at the same hour. A blustery north wind has created wind chill values as low as 40° below zero for parts of the country.
Saturday brings a cloudy & chilly day to the Brazos Valley -- but this chill pales in comparison to the cold expected over the next few days. Expect overcast skies, an occasional patch of drizzle, and highs in the upper 40s to low 50s.
Cold front is expected to start spilling in bitterly cold air Saturday night into Sunday. Temperatures for the last day of the year start in the mid-40s and end in the upper 30s to low 40s. Factor in a brisk north wind between 10 and 15mph and the wind chill (feels like conditions) are expected in the upper 20s to about 30° at best. From there, things get substantially colder.
Dangerously Cold Wind Chills Expected
The National Weather Service will likely issue a WIND CHILL ADVISORY for the Brazos Valley for the early part of the upcoming week.
Wind chill values by midnight Monday -- as we ring in 2018 -- could range between 12° and 20° across the Brazos Valley. By sunrise Monday (January 1st), the feels like temperature will dip anywhere between 9° and 19°. At best, it will feel like the mid / upper 20s Monday afternoon, with actual temperatures in the mid-30s.
The Brazos Valley has not experienced wind chills this low since 2011.
While winds are expected to calm a bit by Tuesday morning, another start with feels like conditions in the teens is anticipated.
Muli-Night Hard Freeze
Make preparations now for a pipe-bursting, plant killing freeze for multiple nights across the Brazos Valley. A HARD FREEZE WARNING will likely be issued by the National Weather Service either Sunday or Monday night.
Low temperatures are expected in the 20s by Monday morning, followed by upper teens to low 20s both Tuesday and Wednesday morning. The last hard freeze of the week is expected again Wednesday night into Thursday morning.
A Hard Freeze is defined as temperatures at or below 28° for two or more hours. The expectation is for the Brazos Valley to be below freezing each night for the following:
- Sunday night / Monday morning: 4-6 hours
- Monday night / Tuesday morning: 15-17 hours
- Tuesday night / Wednesday morning: 17-20 hours
- Wednesday night / Thursday morning: 8-12 hours
Outdoor, exposed pipes & faucets need to be wrapped / covered. Plants should be covered or brought inside, pets will need an indoor, warm place to shelter. Those without adequate heating in their home should be sure to make efforts now to remain warm through this extended cold snap. Even with sunshine returning, afternoon highs are only expected to rebound to the mid-30s Monday and Tuesday afternoons, with the return of mid-40° highs by Tuesday morning.