7:30am Tuesday Update
Scattered areas of sleet and snow flurries continues to move to the east across (mainly) the Central and Southern Brazos Valley. Additional, light ice accumulations are expected through the midday hour.
As of 7am, multiple roads across the Brazos Valley have been reported with icy patches on (at least) bridges and overpasses. Latest road conditions can be found at DriveTexas.org.
As for that wintry weather, more is moving in from the west. Sleet & snow flurries are moving across a large portion of Lee & Burleson Counties. That activity is expected to reach Bryan / College Station by 8am & could linger for a few hours.
6:15am Tuesday Update
Travel issues are starting to be reported by TxDOT across parts of the Brazos Valley. Icy spots along Hwy 21 between the Brazos River and Cooks Point (westbound lanes) and between Chappell Hill, Hempstead, & Prairie View in Washington & Waller Counties.
Bigger issues are being reported across a large portion of Leon & Houston Counties. Many roads are reported as icy -- including I-45 from Fairfield to the I-45 / OSR intersection.
5:30am Tuesday Update
Patches of sleet mixed with a few snow flakes moving east across the Brazos Valley. More significant spots moving into Burleson County, along with South & Central Brazos County. Widespread sleet falling across Walker, Montgomery, & San Jacinto Counties.
More wintry weather is falling to the west of the Brazos Valley & could bring more sleet mixed with snow to the Brazos Valley through the midday hour.
Road temperatures are reported in the upper 20s on Highway 21 at Cooks Point.
4am Tuesday Update
Heavy sleet has moved through Bryan / College Station at times, varying in intensity over the past hour. Everything that is falling is sticking to cars, windshields, and elevated surfaces. At this time, there have been no reported issues on area roads.
3am Tuesday Update
Temperatures have fallen to or below freezing across a large portion of the Brazos Valley. Factor in a brisk north wind gusting 30 to 35mph and wind chill (feels like) temperatures are in the teens area wide.
As of 3pm, #bcstx is officially below freezing. Coulter Field in Bryan checks in at 28°. Wind chill (feels like) values in the teens thank to a brisk wind gusting 30-35mph at the hour pic.twitter.com/klT5Vdwq47— Shel Winkley (@KBTXShel) January 16, 2018
Light sleet has been reported in Bryan / College Station and Caldwell. That wintry weather is likely falling elsewhere across the Central Brazos Valley as a narrow band of moisture continues to drift to the east.
Now that temperatures are below freezing, a light, icy glaze has formed on cars due to rain earlier in the night. As of the hour, roads remained passable across the Brazos Valley.
1am Tuesday Update
Temperatures are close to freezing (33° - 34°) across much of the Northern Brazos Valley. A mix of light rain & sleet is possible from Hwy 79 & points north (as of the midnight to 1am hour).
Snow flurries have been reported mixing with light rain / drizzle in Wellborn.
Small snowflakes starting to fall in Wellborn pic.twitter.com/iIXPi8dGEV— Shannon Hines (@shanhines) January 16, 2018
As the night continues on, a mix of rain (further south) to snow (further north) will remain possible.
By sunrise, temperatures should be cold enough to allow precipitation falling to do so as a form of winter weather.
Monday Night Update
The highly anticipated cold front has swept through the Brazos Valley as of 11pm. Gusty winds 30-40mph are kicking up at times, quickly dropping temperatures and making it feel like it is freezing outside.
As of the 11pm hour, most of what is falling in the Brazos Valley is coming down as liquid rain. There have been a few indications of a rain / sleet mix falling across Northern Robertson & North / Central Leon Counties.
Sleet has been reported north of Austin & around the Waco area. PinPoint radar indicates snow falling across North & Central Texas at this hour.
MONDAY Afternoon Update
WINTER STORM WARNING for all of the Brazos Valley tonight through Tuesday night.
Strong arctic front will move in tonight through early Tuesday morning. Temperatures will drop below freezing through the
morning and linger around there during the afternoon. Scattered showers possible before temperatures drop and then wintry mix is likely.
Freezing rain will be the primary hazard for all areas in the
warning with the potential of 0.01" - 0.10" accumulation. These minor amounts can still impact roads, bridges and overpasses.
There is also the potential for snowfall accumulation of 1 to 2 inches possible. Be careful out on the roads and bundle up!
MONDAY Afternoon Update
We are staying mild and seasonable through the afternoon but by this time tomorrow it will be a completely different story.
2pm across the Brazos Valley -- temperatures are in the mild mid-60s (image #1)— Shel Winkley (@KBTXShel) January 15, 2018
Compare that to forecast highs right around freezing at this time tomorrow (image #2) pic.twitter.com/r6OkG8Bdfm
Cold front still expected to reach the northern counties late this evening and then continue pushing south through around midnight.
Scattered showers are possible ahead of the cold front and then the transition to wintry mix is likely.
WINTER STORM WARNING & WINTER WEATHER ADVISORY remain in place for the Brazos Valley through Tuesday.— Shel Winkley (@KBTXShel) January 15, 2018
More detail later--but for now, light glaze of ice possible between 1am & 5am, covered by a layer of snow 5am through mid-morning or midday Tuesday. **Totals are not exact** pic.twitter.com/KxdTYdqhMo
Be careful out and about for your Tuesday morning commute and be sure to bundle up. Also bring in pets tonight and protect plants and exposed pipes!
MONDAY Mid-morning Update
New model data has been relatively consistent with that before it, suggesting that the front will arrive later this evening ahead of some scattered showers, and a brief window of below freezing temperatures and rain falling. This could lead to ice accumulations of a few hundredths of an inch, which would be enough to cause problems on the roadways, especially bridges and overpasses.
Issues on the commute after Tuesday morning depend on how much accumulation we see, and how dry we are able to get after the front passes. Highest impacts are, at the moment, still expected to be for our northern counties.
Through the day Tuesday, temperatures will hover around freezing, and with a steady north wind 15-20mph, wind chills will approach the teens through most of the day. Wind calms through the overnight, but temperatures will plummet, bringing a widespread hard freeze for the entire Brazos Valley come Wednesday morning. Remember the four Ps! (Pipes, Pets, Plants, People)
MONDAY 7am Update
The Winter Storm Watch has been upgraded to a WARNING (shaded pink) for Lee, Milam, Robertson, and Leon Counties. The Warning basically just means that confidence has increased for the potential for winter weather in these areas especially, though the rest of the Brazos Valley is likely to be impacted this evening. Scattered showers by dinnertime with the front approaching soon after could quickly give us some hazardous travel. The main threat, especially for our northern counties, is for minor ice accumulations, and snow/sleet accumulations up to 2 inches.
A Winter Weather ADVISORY (shaded purple) is in effect for the rest of the Brazos Valley. Accumulations and totals are expected to be lower, but the morning commute could still be affected for Tuesday.
Additionally, in order to get an ice potential you need some big time cold air. After comfortable & mild highs in the low / mid 60s Monday afternoon, this next cold front is set to drop temperatures to / just below freezing by Tuesday morning. Clouds and a strong north wind ushering in that cold air will keep afternoon highs right around 32° or just above by afternoon. Consider that the wind will remained sustained around 20mph through the day -- wind chill values (feels like temperatures) are expected in the teens to low 20s Tuesday through Wednesday morning.
After a mild afternoon, clouds increase & our next BIG cold front arrives by late evening.— Shel Winkley (@KBTXShel) January 15, 2018
Temperatures fall below freezing by morning & hold around there all day Tuesday. Brisk north wind ~20mph keeps wind chills in the teens / low 20s pic.twitter.com/TjmYATzEnt
Sunday Evening Update
The threat for a wintry mix of sleet and freezing rain appears to be increasing on Tuesday as another cold front moves into the Brazos Valley Monday night.
Stay tuned for further updates this evening as we prepare for a possible wintry mess on Tuesday.