896  
ACUS11 KWNS 252348  
SWOMCD  
SPC MCD 252348  
WIZ000-MNZ000-260115-  
 
MESOSCALE DISCUSSION 2133  
NWS STORM PREDICTION CENTER NORMAN OK  
0648 PM CDT TUE AUG 25 2026  
 
AREAS AFFECTED...PARTS OF NORTHWESTERN WISCONSIN  
 
CONCERNING...SEVERE THUNDERSTORM WATCH 626...  
 
VALID 252348Z - 260115Z  
 
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 626  
CONTINUES.  
 
SUMMARY...THE RISK OF DAMAGING WIND GUSTS AND SEVERE HAIL WILL  
GENERALLY REMAIN FOCUSED ACROSS PARTS OF NORTHWESTERN WISCONSIN FOR  
THE NEXT COUPLE HOURS -- WITHIN SEVERE THUNDERSTORM WATCH 626.  
 
DISCUSSION...A NNE/SSW-ORIENTED SURFACE FRONT/WIND SHIFT MOVING  
EASTWARD ACROSS FAR NORTHWESTERN WI REMAINS THE FOCUS FOR ONGOING  
CONVECTIVE CLUSTERS, WITH TRANSIENT/EMBEDDED ROTATION. AROUND 30-40  
KT OF WEST-NORTHWESTERLY DEEP-LAYER SHEAR (PER DLH VWP DATA)  
ORIENTED PERPENDICULAR TO THE FRONT AND A NARROW CORRIDOR OF  
WEAK-MODERATE PRE-CONVECTIVE BUOYANCY SHOULD CONTINUE TO SUPPORT  
THIS ACTIVITY FOR THE NEXT COUPLE HOURS. GIVEN THE CLUSTERED MODE  
WITH SOME DEEPER/SEPARATED CORES, THE PRIMARY CONCERN WILL CONTINUE  
TO BE DAMAGING WIND GUSTS AND SEVERE HAIL. WHILE UNLIKELY, THE  
TRANSIENT EMBEDDED ROTATION AND ONGOING CELL INTERACTIONS COULD  
STILL SUPPORT A BRIEF/WEAK TORNADO RISK, AIDED BY SOME INCREASE IN A  
SOUTHERLY LOW-LEVEL JET OVER THE NEXT COUPLE HOURS. WITH TIME AND  
EASTWARD EXTENT, THESE STORMS WILL MOVE INTO AN INCREASINGLY STABLE  
AIR MASS IN NORTH-CENTRAL WI (EVIDENT IN SURFACE OBSERVATIONS AND  
VISIBLE SATELLITE IMAGERY). THEREFORE, A DOWNSTREAM WATCH IS  
UNLIKELY.  
 
..WEINMAN.. 08/25/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
 
 
ATTN...WFO...DLH...MPX...  
 
LAT...LON 46099243 46539183 46619158 46569131 46329118 45669119  
45249147 45169189 45219268 45379295 45709281 46099243  
 
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH  
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN  
 
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