Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0654 AM CST Fri Dec 12 2025

Valid 121300Z - 131200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not forecast across the U.S. today or tonight.

...Discussion...
Cold/continental trajectories especially east of the Rockies will
generally preclude thunderstorm development. Regarding a potential
exception, gradual low-level moisture return will continue to occur
over the western Gulf toward coastal Texas ahead of a low-latitude
trough over northern Mexico. Convection will probably develop and
increase late tonight over the western Gulf, but modest forcing for
ascent and marginal thermodynamic profiles aloft should limit
thunderstorm potential over inland areas of Texas.

..Guyer/Lyons.. 12/12/2025

Day 4-8 Convective Outlook  
NWS Storm Prediction Center Norman OK
0319 AM CST Fri Dec 12 2025

Valid 151200Z - 201200Z

...DISCUSSION...
Strong high pressure will dominate the eastern CONUS on Monday with
offshore flow across then entire Gulf Coast and East Coast. This
dry, continental polar airmass across the eastern CONUS will result
in no thunderstorms east of the Rockies on Monday and Tuesday. Some
thunderstorms are possible along the coastal Pacific Northwest where
some weak instability may be present. 

By the middle of next week, moisture return should resume across
Texas. This may result in some thunderstorm activity by early
Wednesday in the east Texas vicinity. Beyond Wednesday, model
uncertainty increases substantially. However, severe potential will
still remain too low as even the most favorable mid-long range
guidance indicates minimal instability and low severe weather
threat.