012  
ACUS01 KWNS 271254  
SWODY1  
SPC AC 271253  
 
DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
0753 AM CDT WED AUG 27 2025  
 
VALID 271300Z - 281200Z  
 
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS EASTERN  
COLORADO...  
   
..SUMMARY
 
 
SOME STRONG TO LOCALLY SEVERE STORMS MAY OCCUR ACROSS EASTERN  
COLORADO AND THE CENTRAL HIGH PLAINS LATE THIS AFTERNOON AND EARLY  
EVENING.  
   
..EASTERN COLORADO/CENTRAL HIGH PLAINS
 
 
PREVALENT CLOUD COVER AND SOME LINGERING MOSTLY LIGHT PRECIPITATION  
SHOULD EVENTUALLY ABATE LATER THIS AFTERNOON, WITH THUNDERSTORMS  
EXPECTED TO DEVELOP/INCREASE INITIALLY OVER THE MOUNTAINS BY AROUND  
MID-AFTERNOON. THESE STORMS WILL SPREAD EAST-SOUTHEASTWARD TOWARD  
THE INSTABILITY AXIS ACROSS THE ADJACENT HIGH PLAINS THROUGH EARLY  
EVENING. MODERATELY STRONG MID-LEVEL FLOW COULD SUPPORT SOME  
SEMI-ORGANIZED STORMS, AND A COUPLE OF CLUSTERS COULD EVOLVE BY  
EVENING. LOCALIZED INSTANCES OF MARGINALLY SEVERE HAIL AND/OR WIND  
COULD OCCUR, ALTHOUGH LOCALLY HEAVY RAINFALL MAY BE MORE OF A  
PREVALENT CONCERN.  
   
..UPPER MIDWEST
 
 
A REGION OF MODERATE INSTABILITY IS FORECAST TO DEVELOP FROM EASTERN  
SOUTH DAKOTA INTO SOUTHERN MINNESOTA THIS AFTERNOON. BUT THIS WILL  
BE IN THE WAKE OF A SOUTHEASTWARD-MOVING SHORTWAVE TROUGH, WITH WEAK  
HEIGHT RISES AND SUBSIDENCE IN ITS WAKE. NONETHELESS, ISOLATED STORM  
DEVELOPMENT MAY OCCUR BY LATE AFTERNOON/EARLY EVENING, AND A FEW  
STRONG STORMS ARE CONCEIVABLE.  
 
..GUYER/KERR.. 08/27/2025  
 

 
 
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