871  
ACUS01 KWNS 121628  
SWODY1  
SPC AC 121627  
 
DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
1027 AM CST MON JAN 12 2026  
 
VALID 121630Z - 131200Z  
   
..NO THUNDERSTORM AREAS FORECAST
 
 
   
..SUMMARY
 
 
THUNDERSTORMS ARE NOT EXPECTED TODAY AND TONIGHT.  
   
..SYNOPSIS AND DISCUSSION
 
 
LARGELY CYCLONIC FLOW ALOFT IS ANTICIPATED OVER MUCH OF THE CENTRAL  
AND EASTERN CONUS TODAY, WHILE A MODIFYING REX BLOCK CONFIGURATION  
EVOLVES OVER THE WESTERN CONUS. STABLE CONDITIONS ARE FORECAST  
ACROSS THE MAJORITY OF THE CONUS, WITH OFFSHORE TRAJECTORIES  
PERSISTING ACROSS THE SOUTHEAST AND A REINFORCING SURGE OF COLD AIR  
ACROSS THE NORTHERN AND CENTRAL PLAINS AS SHORTWAVE TROUGH DROPS  
SOUTHEASTWARD OUT THE CANADIAN PRAIRIES INTO THE UPPER MIDWEST THIS  
EVENING.  
 
A FEW LIGHTNING FLASHES COULD OCCUR WITH THE ELEVATED CONVECTION  
EXPECTED TONIGHT FROM TX RIO GRANDE VALLEY INTO THE TX HILL COUNTRY  
AS THE UPPER LOW ASSOCIATED WITH THE MODIFYING REX BLOCK PROGRESSES  
ACROSS CENTRAL MEXICO. A FLASH OR TWO COULD ALSO OCCUR ALONG THE  
SOUTHEAST FL COAST AFTER 04Z, WHERE LOW-LEVEL CONVERGENCE AND  
MODERATE LOW-LEVEL MOISTURE MAY RESULT IN SPORADIC DEEP CONVECTION.  
HOWEVER, OVERALL THUNDERSTORM COVERAGE IS CURRENTLY FORECAST TO BE  
LESS THAN 10% IN BOTH OF THESE AREAS.  
 
..MOSIER/WENDT.. 01/12/2026  
 

 
 
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