303  
FXUS63 KMKX 220325  
AFDMKX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
1025 PM CDT FRI AUG 21 2026  
   
KEY MESSAGES
 
 
 
- SCATTERED THUNDERSTORMS ~12-7 PM SATURDAY MAINLY IN EAST-  
CENTRAL AND SOUTHEAST WISCONSIN. AN ISOLATED STRONGER STORM  
WITH GUSTY WINDS OR HAIL CAN'T BE RULED OUT.  
 
- DRY AND PLEASANT CONDITIONS SUNDAY INTO THE BEGINNING OF NEXT  
WEEK. STORM CHANCES RETURN TUESDAY EVENING INTO WEDNESDAY.  
 

 
   
SHORT TERM
 
 
ISSUED 1030 PM CDT FRI AUG 21 2026  
 
TONIGHT THROUGH SATURDAY NIGHT:  
 
QUIET WEATHER EXPECTED THE REST OF THE NIGHT AS STORMS HAVE  
DISSIPATED OR PUSHED OUT OVER THE LAKE WITH NO CONCERNS WITH THE  
FORCING AND INSTABILITY HAVING PUSHED OUT AS WELL. DRY  
CONDITIONS LARGELY EXPECTED THROUGH SATURDAY MORNING. INTO  
SATURDAY AFTERNOON A BACKDOOR COLD FRONT IN COMBINATION WITH  
SOME SURFACE CONVERGENCE ALONG THE LAKE BREEZE COULD BRING SOME  
ADDITIONAL SHOWER AND/OR STORM DEVELOPMENT INTO THE EARLY  
EVENING. CHANCES REMAIN FAIRLY LIMITED AND ONLY ISOLATED  
SHOWERS/STORMS ARE POSSIBLE BUT THE FOCUS WILL BE CLOSER TO THE  
LAKE AND UNLIKELY TO IMPACT ANY OF WESTERN WI. SHEAR WILL BE  
LIMITED AND THUS WE DO NOT EXPECT STORMS TO BECOME STRONG.  
 
QUIETER WEATHER WILL QUICKLY RETURN SATURDAY NIGHT AS THE FRONT  
SLIDES OUT AND HIGHER PRESSURE BEGINS TO NUDGE IN.  
 
KUROSKI  
 

 
   
LONG TERM
 
 
ISSUED 1030 PM CDT FRI AUG 21 2026  
 
SUNDAY THROUGH FRIDAY:  
 
SUNDAY WILL FEATURE HIGH PRESSURE BUILDING INTO THE REGION  
KEEPING THINGS DRY THROUGH THE DAY TUESDAY. THE HIGH PRESSURE  
WILL BEGIN TO PUSH OUT TUESDAY NIGHT INTO WEDNESDAY THUS BECOMING  
OUR NEXT BEST CHANCE FOR SHOWERS AND STORMS AS AND 850MB FRONT  
AND UPPER LEVEL SHORTWAVE SWING THROUGH WITH SOME WAA, IN  
ADDITION TO THE SURFACE LOW AND CORRESPONDING COLD FRONT. STILL  
SOME UNCERTAINTY IN TRACK AND TIMING BUT MODELS GENERALLY AGREE  
ON THIS PUSHING THROUGH BRINGING PRECIP WITH LIKELY SOME STORMS  
AS WELL. IN ADDITION, DEEP LAYER SHEAR APPEARS TO BE STRONG IN  
THE 40-50KT RANGE WHICH WOULD BRING SOME SEVERE RISK IF THE  
TIMING OF STORMS IS INTO THE AFTERNOON/EVENING WITH GOOD DAYTIME  
HEATING.  
 
AFTER WEDNESDAY, UNCERTAINTY INCREASES A BIT THOUGH IN GENERAL  
HIGHER PRESSURE SEEMS TO BE PUSHING IN AND STRENGTHENING WITH  
DRIER CONDITIONS OVERALL MORE LIKELY, POSSIBLY EVEN INTO THE  
WEEKEND.  
 
KUROSKI  
 

 
   
AVIATION
 
 
ISSUED 1030 PM CDT FRI AUG 21 2026  
 
TONIGHT THROUGH SATURDAY MORNING EXPECT QUIETER CONDITIONS WITH  
LIGHT TO MODEST NORTHWEST WINDS. INTO THE AFTERNOON SOME WEAK  
INSTABILITY AND A BACKDOOR COLD FRONT WITH SOME LAKE BREEZE  
IMPACT COULD ALLOW FOR A FEW ISOLATED WEAK STORMS OR SHOWERS  
CLOSER TO THE LAKE BUT FOR THE MOST PART MUCH OF THE REGION IS  
EXPECTED TOP REMAIN DRY. SHOWERS AND/OR STORMS MAY CAUSE BRIEF  
VSBY DEGRADATION BUT OTHERWISE VFR CONDITIONS EXPECTED.  
 
KUROSKI  
 

 
   
MARINE
 
 
ISSUED 1030 PM CDT FRI AUG 21 2026  
 
A WEAK LOW PRESSURE SYSTEM AROUND 29.8 INCHES WILL CROSS LAKE  
MICHIGAN FROM NORTH TO SOUTH TONIGHT AND BRING A WIND SHIFT TO  
THE NORTHWEST. THEN LOOK FOR GUSTY NORTHERLY WINDS TO DEVELOP  
ALONG A COLD FRONT THAT WILL TRACK FROM NORTH TO SOUTH DOWN LAKE  
MICHIGAN SATURDAY EVENING. A FEW THUNDERSTORMS ARE POSSIBLE  
ALONG THIS FRONT. NORTHERLY WINDS WILL PERSIST THROUGH SUNDAY AS  
LOW PRESSURE AROUND 29.6 INCHES TRACKS FROM LOWER MICHIGAN TO  
ONTARIO. VARIABLE WINDS ARE EXPECTED FOR MONDAY AND TUESDAY AS  
HIGH PRESSURE OF 30.1 INCHES CROSSES THE UPPER GREAT LAKES.  
 
KUROSKI  
 

 
   
MKX WATCHES/WARNINGS/ADVISORIES
 
 
WI...NONE.  
LM...NONE.  

 
 

 
 
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