142 
ACUS01 KWNS 300045
SWODY1
SPC AC 300043

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0643 PM CST Thu Jan 29 2026

Valid 300100Z - 301200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not forecast through tonight.

...Discussion...
The general prevalence of cold/stable conditions will preclude
thunderstorm development across the CONUS through tonight.

..Guyer.. 01/30/2026

$$


File: /home/ldm/var/data/BY_SOURCE/KWNS/ACUS01/20260130T0045.txt



193 
ACUS01 KWNS 291932
SWODY1
SPC AC 291930

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0130 PM CST Thu Jan 29 2026

Valid 292000Z - 301200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not forecast through tonight.

...20Z Update...
No changes have been made to the outlook.

..Dean.. 01/29/2026

.PREV DISCUSSION... /ISSUED 1000 AM CST Thu Jan 29 2026/

...Synopsis and Discussion...
Upper ridging will persist across the western U.S. today, while
broadly cyclonic mid/upper flow remains over the central/eastern
CONUS. Negligible instability over land is expected to preclude
thunderstorms through tonight.

$$


File: /home/ldm/var/data/BY_SOURCE/KWNS/ACUS01/20260129T1932.txt



756 
ACUS01 KWNS 291602
SWODY1
SPC AC 291600

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
1000 AM CST Thu Jan 29 2026

Valid 291630Z - 301200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not forecast through tonight.

...Synopsis and Discussion...
Upper ridging will persist across the western U.S. today, while
broadly cyclonic mid/upper flow remains over the central/eastern
CONUS. Negligible instability over land is expected to preclude
thunderstorms through tonight.

..Gleason.. 01/29/2026

$$


File: /home/ldm/var/data/BY_SOURCE/KWNS/ACUS01/20260129T1602.txt



968 
ACUS01 KWNS 291239
SWODY1
SPC AC 291238

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0638 AM CST Thu Jan 29 2026

Valid 291300Z - 301200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected today or tonight.

...Synopsis...
Broadly cyclonic flow aloft is currently in place across much of the
central and eastern CONUS, anchored by an expansive upper low
centered over central Ontario. Early-morning satellite imagery shows
a pair of shortwave troughs within the western periphery of this
cyclonic flow, with the lead wave entering the TX Panhandle and OK
and the second wave moving through western WY. Both of these
shortwaves are forecast to move southeastward throughout the day,
while another notably strong shortwave drops southward into the
northern Plains and Upper Midwest early tomorrow. Evolution of these
waves will reinforcing the cold, dry, and stable airmass already in
place, and no thunderstorms are expected.

Upper ridging is expected to build across much of the western
CONUS/Intermountain West today. As it does, a pair of shortwave
troughs are forecast to move through British Columbia and the
Pacific Northwest. Showers with embedded convective elements will
accompany each of these waves, but any convection should be too
shallow for lightning production.

..Mosier/Broyles.. 01/29/2026

$$


File: /home/ldm/var/data/BY_SOURCE/KWNS/ACUS01/20260129T1239.txt



981 
ACUS01 KWNS 290543
SWODY1
SPC AC 290541

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
1141 PM CST Wed Jan 28 2026

Valid 291200Z - 301200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected today or tonight.

...Synopsis/Discussion...
A convectively inactive scenario will persist across the CONUS with
virtually nil thunderstorm potential. Longwave trough will persist
east of the Rockies with associated cold/continental trajectories
prevalent, with upper ridging over the Rockies and Intermountain
West. Multiple shortwave troughs will influence the Pacific
Northwest, but the potential for lighting-producing convection is
likely to remain low even in near-coastal areas given the forecast
thermodynamic profiles.

..Guyer/Thornton.. 01/29/2026

$$


File: /home/ldm/var/data/BY_SOURCE/KWNS/ACUS01/20260129T0543.txt