DECEMBER 18, 2017 -- Rain and thunderstorm chance will remain ongoing for Tuesday. While rain is not expected to fall the entire day, rounds of activity are anticipated to move through the Brazos Valley.
Severe Weather Potential
Not the greatest severe weather potential there ever was, but a few strong to briefly severe thunderstorms are possible in the Brazos Valley Tuesday.
The Storm Prediction Center has place a majority of the area under a MARGINAL Risk for isolated severe thunderstorms. The main concern -- should a storm strengthen -- will be heavy rain, lightning, gusty winds 40mph+, hail, and a brief spin up / tornado.
This should not be the theme of Tuesday, but more the exception rather than the rule.
Storm Timing / Potential
As mentioned above, your entire Tuesday will not be covered in rain and thunderstorms. Rounds of activity are expected to pass through the Brazos Valley -- the first moving southwest to northeast and the second moving northwest to southeast.
The first round is not set in stone, but many hi-res, short term forecast models have placed a cluster of rain & storms moving across the area between 4am and 8am.
Scattered rain to a few thunderstorms are possible from mid-morning to mid-afternoon. These two time frames could bring isolated thunderstorms that could briefly become severe.
The main line of rain and thunderstorms will be possible by mid-to-late afternoon, but very well could hold back until early evening through 10pm to midnight. If this line can form, it could present a strong wind threat, along with heavy rain.
1" to 2" of rain is anticipated through this evening, with localized higher totals closer to 3" not off the table.