Threat of snow/ice on Tuesday in Central Texas

RPM (12km) computer model projection for 2 a.m. Tuesday

We first warned you Thursday about the potential of a wintry weather setup starting on Martin Luther King, Jr. Day. Now, we are getting more confident in what is likely the third major winter storm of the season.

Newest details: Latest model runs show the potential for precip to linger longer into Tuesday, possibly affecting both the morning and evening commute.

Setup: After a mild Monday in the 60s, and arctic front approaches Monday night, bringing the potential of subfreezing temperatures from Tuesday morning through midday Wednesday (more than 24 hours).

Accompanying the front, at least three trusted computer models agree with high confidence that light rain will transition to some type of wintry precipitation: sleet, freezing rain or snow.  The National Weather Service mentions sleet and freezing rain for most of Central Texas, with the highest probability of pure snow in the Hill Country Tuesday.

This setup has the potential to affect travel and commutes on Tuesday. Tuesday afternoon will be bitterly cold and blustery, forcing bridges and overpasses to cool down more quickly. Most communities will struggle to even climb above freezing (32°) Tuesday afternoon. Stay with the First Warning Weather team through the holiday weekend for frequent updates, and download the KXAN Weather app to stay aware.

Tweet from our local National Weather Service office on January 13th, 2018.
Length of travel impacts that could occur according to our local National Weather Service office.

See the latest computer model output below from two of the models mentioned:

RPM (12km) computer model projection for 12 a.m. Tuesday
RPM (12km) computer model projection for 6 a.m. Tuesday
RPM (4km) computer model projection for 12 a.m. Tuesday
RPM (4km) computer model projection for 3 a.m. Tuesday
RPM (4km) computer model projection for 6 a.m. Tuesday

Some uncertainty remains on the length of which wintry precipitation will continue to reach the ground as some models indicate a wintry mix lingering into the afternoon hours. Regardless, travel will remain hazardous through much of Tuesday due to moisture on the ground possibly creating a thin glaze of ice as long as temperatures hover around freezing.

NAM computer model projection for 12 p.m. Tuesday.
NAM computer model projection for 6 p.m. Tuesday.

KXAN.com provides commenting to allow for constructive discussion on the stories we cover. In order to comment here, you acknowledge you have read and agreed to our Terms of Service. Users who violate these terms, including use of vulgar language or racial slurs, will be banned. If you see an inappropriate comment, please flag it for our moderators to review.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s