Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
1157 PM CST Sun Jan 18 2026

Valid 191200Z - 201200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected in the U.S. today or tonight.

...DISCUSSION...
A large-scale cyclonic mid-level flow pattern will be in place
across the U.S. today. At the surface, a large area of high pressure
will remain over the Gulf Coast region, as another cold front
advances southeastward into the Southeast. Behind this front, a
large surface high will settle into the central states. This will
reinforce a cold and dry airmass, making conditions unfavorable for
thunderstorm development over the continental U.S. today and
tonight.

..Broyles/Weinman.. 01/19/2026

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1204 AM CST Mon Jan 19 2026

Valid 201200Z - 211200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected on Tuesday or Tuesday night.

...Synopsis...

The next in a series of upper shortwave troughs will migrate from
the Rockies toward the Upper Midwest and Plains on Tuesday. Surface
cyclogenesis will occur across the northern and central High Plains
as a result. This area of low pressure will lift northeast overnight
toward the Great Lakes. Southerly surface winds will develop in
response to these features across the western Gulf Basin, allowing
for meager airmass modification and northward transport of minor
boundary layer moisture across portions of South TX and the coastal
plain vicinity by early Wednesday. However, poor instability and
weak forcing for ascent will preclude thunderstorm potential.
Elsewhere, a cold, dry, and stable airmass will preclude
thunderstorm activity.

..Leitman.. 01/19/2026