795  
FXUS63 KMKX 260017 AAA  
AFDMKX  
 
AREA FORECAST DISCUSSION...UPDATED  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
717 PM CDT MON MAY 25 2026  
   
KEY MESSAGES  
 
- A MODERATE SWIM RISK REMAINS INTO THIS EVENING FOR LAKE  
MICHIGAN BEACHES IN SHEBOYGAN AND OZAUKEE COUNTIES.  
 
- THERE ARE 20 TO 50 PERCENT CHANCES FOR SHOWERS AND SOME STORMS  
TUESDAY EVENING AND NIGHT, AS A BACKDOOR COLD FRONT STARTS TO  
SHIFT SOUTHWARD TOWARD THE AREA.  
 
- A BACKDOOR COLD FRONT WEDNESDAY WILL BRING GUSTY NORTHEAST  
WINDS BEHIND IT NEAR THE LAKE AND MUCH COOLER TEMPERATURES.  
THIS FRONT WILL ALSO BRING CHANCES FOR SHOWERS AND STORMS  
(AROUND 20 TO 50 PERCENT) WEDNESDAY AFTERNOON/EARLY EVENING.  
 
- DRY FOR LATER THIS WEEK INTO THE WEEKEND WITH ABOVE NORMAL  
TEMPERATURES.  
 
 
   
UPDATE  
 
ISSUED 717 PM CDT MON MAY 25 2026  
 
A MODERATE SWIM RISK SHOULD LINGER INTO THIS EVENING FOR  
SHEBOYGAN AND OZAUKEE COUNTY BEACHES, DUE TO LINGERING WAVES  
AROUND 3 FEET. WINDS WILL CONTINUE TO WEAKEN AND WILL ALLOW  
WAVES TO SUBSIDE TO 1 TO 2 FEET BY LATER TONIGHT.  
 
HIGH PRESSURE TO THE SOUTHEAST OF THE AREA WILL CONTINUE TO PUSH  
EAST TONIGHT INTO TUESDAY. SOME MIDDLE LEVEL CLOUDS WILL  
DISSIPATE THIS EVENING, WITH MOSTLY CLEAR SKIES OVERNIGHT INTO  
TUESDAY MORNING. ANY LINGERING GUSTY SOUTH WINDS WILL WEAKEN  
THIS EVENING, WITH LIGHT SOUTH WINDS BECOMING SOUTHWEST LATER  
TONIGHT INTO TUESDAY MORNING. LOWS TONIGHT SHOULD BE IN THE  
UPPER 50S TO AROUND 60 DEGREES.  
 
ANOTHER WARM DAY IS EXPECTED TUESDAY, WITH HIGHS INTO THE UPPER  
80S OVER MOST OF THE AREA. WINDS SHOULD SHIFT SOUTH TO POSSIBLY  
SOUTHEAST CLOSER TO THE LAKE IN THE AFTERNOON, WHICH MAY BRING  
COOLER TEMPERATURES THERE.  
 
SOME MIDDLE LEVEL CLOUDS MAY MOVE THROUGH IN THE AFTERNOON, WITH  
SOME DIURNAL CUMULUS POSSIBLE AS WELL. FORECAST SOUNDINGS IN  
NORTHWEST PARTS OF THE AREA ARE SHOWING BUILDING ELEVATED CAPE,  
BUT THE AREA IS CAPPED TO SURFACE PARCELS, AND ANY ELEVATED  
UPWARD MOTION SHOULD REMAIN TO THE NORTH AND NORTHWEST. THUS,  
MOST CAMS SUGGEST THAT ANY SHOWERS AND STORMS REMAINING TO THE  
NORTH TUESDAY AFTERNOON, CLOSER TO THE STATIONARY FRONT AND  
WITHIN THE SOUTHWESTERLY LOW LEVEL JET AXIS.  
 
THIS ACTIVITY MAY SAG SOUTHWARD INTO THE AREA TUESDAY EVENING  
AND NIGHT, AS THE FRONT SHIFTS SOUTHWARD AS A COLD FRONT TOWARD  
THE AREA. THERE IS SOME DIFFERENTIAL CVA PASSING THROUGH  
TUESDAY NIGHT, WITH FORECAST SOUNDINGS TRYING TO SHOW SOME  
ELEVATED CAPE UP TO 1000 J/KG IN THE AFTERNOON AND EARLY IN THE  
EVENING IN NORTHWEST PARTS OF THE AREA, DROPPING QUICKLY AS THE  
NIGHT GOES ON. FOR NOW, KEPT 20 TO 50 PERCENT CHANCES FOR  
SHOWERS AND STORMS GOING IN THE FORECAST OVER NORTHERN PORTIONS  
OF THE AREA. DEEP LAYER BULK SHEAR IS FAIRLY WEAK, AROUND 20  
KNOTS OR LESS, SO NOT EXPECTING ANY STRONG TO SEVERE STORMS AT  
THIS TIME.  
 
WOOD  
 
 
   
SHORT TERM  
 
ISSUED 1230 PM CDT MON MAY 25 2026  
 
TONIGHT THROUGH WEDNESDAY NIGHT:  
 
TONIGHT WE WILL START TO MOVE INTO AN UPPER LEVEL RIDGE SETUP  
WHICH WILL BRING US VERY WARM TEMPERATURES FOR TUESDAY WITH  
MODEST TO BREEZY SOUTHWEST FLOW ON THE BACKSIDE OF THE SURFACE  
HIGH. THERE WILL LIKELY BE SOME PRECIP IN THE MIDWEST REGION,  
PRIMARILY FOCUSED ALONG A WARM FRONT TO THE NORTH, ESPECIALLY AS  
WE MOVE INTO TUESDAY NIGHT AS A DEVELOPING HIGH OVER THE UP IN  
CONNECTION WITH A MORE PRONOUNCED HIGH IN CENTRAL CANADA WILL  
TURN THE WARM FRONT INTO A SOUTHWARD MOVING BACKDOOR COLD FRONT.  
 
THIS BACKDOOR COLD FRONT APPEARS LIKELY TO BE STRONG (PNEUMONIA  
FRONT LIKE IN TERMS OF IMPACT?) RAPIDLY PUSHING DOWN THE LAKE  
INTO WEDNESDAY. MODELS MAY NOT EVEN BE CAPTURING HOW QUICKLY  
THIS MAY OCCUR ON WEDNESDAY. WHILE IT SHOULD BE EXPECTED TO WARM  
UP A BIT AHEAD OF THIS FRONT IF IT COMES THROUGH EARLY ENOUGH  
THE WARMING MAY NOT BE AS SUBSTANTIAL. IN EITHER CASE, WE COULD  
SEE QUITE A SIGNIFICANT TEMPERATURE DROP BEHIND THE FRONT. THE  
OTHER PIECE OF THIS IS THAT DEPENDING ON TIMING, THIS FRONT  
COULD TRIGGER SHOWERS/STORMS DURING THE DAY WEDNESDAY. THE ISSUE  
WITH PRECIP CHANCES IS THAT THE ONLY FORCING WILL BE FROM THE  
FRONT WITH NO LIFT ELSEWHERE GIVEN BEING IN THE BASE OF THE  
RIDGE. THE PRECIP CHANCES HAVE INCREASED FOR THIS PERIOD  
HOWEVER, GIVEN THE STRENGTH OF THE FRONT AND ENOUGH LOW LEVEL  
MOISTURE TO WORK WITH TO BRING ABOUT PRECIP. ANY STORMS WITH  
THIS WOULD BE LARGELY WEAK GIVEN THE LIMITED SHEAR WITH THE  
RIDGE OVERHEAD BUT ENOUGH INSTABILITY COULD ALLOW FOR SOME  
BRIEFLY STRONG STORMS LIKELY QUICKLY BECOMING OUTFLOW DOMINANT.  
SHOWERS/STORMS MAY LINGER INTO THE EVENING BEFORE THE FRONT  
CLEARS OUT AS WE LOSE INSTABILITY INTO THE EVENING.  
 
A PERIOD OF MODERATE SWIM RISK CONDITIONS EXPECTED LATER THIS  
AFTERNOON THROUGH THE EVENING PRIMARILY FOR OZAUKEE AND  
SHEBOYGAN COUNTIES WITH A RISK FOR HIGH SWIM RISK CONDITIONS  
WEDNESDAY LATE AFTERNOON THROUGH WEDNESDAY NIGHT FOR ALL  
NEARSHORE COUNTIES.  
 
KUROSKI  
 
 
   
LONG TERM  
 
ISSUED 1230 PM CDT MON MAY 25 2026  
 
THURSDAY THROUGH MONDAY:  
 
THURSDAY AND FRIDAY REMAIN IN THE SAME UNDERLYING PATTERN WITH  
LARGE SCALE RIDGING OVERHEAD AND SURFACE HIGH PRESSURE GENERALLY  
OVERHEAD. THURSDAY HAS TRENDED COOLER DUE TO THE FRONT COMING  
THROUGH WEDNESDAY AND FRIDAY HAS TRENDED TOWARD PRODUCING  
ANOTHER BACKDOOR COLD FRONT WHICH IS A BIT UNCERTAIN STILL AND  
DEPENDS ON PROGRESSION OF THE SURFACE HIGH. THIS MAY INTRODUCE  
SOME PRECIP CHANCES, THOUGH CHANCES ARE UNCERTAIN AT THIS TIME.  
INTO THE WEEKEND WHILE THE UPPER LEVELS BECOME POTENTIAL MORE  
ACTIVE, THOUGH UNCERTAIN, THE LACK OF MOISTURE AND THE  
LIKELIHOOD OF HIGH PRESSURE OVER THE WESTERN GREAT LAKES  
SUGGESTS IT WILL LIKELY REMAIN DRY THROUGH THE WEEKEND AND  
LIKELY INTO EARLY NEXT WEEK.  
 
KUROSKI  
 
 
   
AVIATION  
 
ISSUED 717 PM CDT MON MAY 25 2026  
 
HIGH PRESSURE TO THE SOUTHEAST OF THE AREA WILL CONTINUE TO  
PUSH EAST TONIGHT INTO TUESDAY. SOME MIDDLE LEVEL CLOUDS WILL  
DISSIPATE THIS EVENING, WITH MOSTLY CLEAR SKIES OVERNIGHT INTO  
TUESDAY MORNING.  
 
ANY LINGERING GUSTY SOUTH WINDS WILL WEAKEN THIS EVENING, WITH  
LIGHT SOUTH WINDS BECOMING SOUTHWEST LATER TONIGHT INTO TUESDAY  
MORNING. WINDS SHOULD SHIFT SOUTH TO POSSIBLY SOUTHEAST CLOSER  
TO THE LAKE IN THE AFTERNOON. SOME MIDDLE LEVEL CLOUDS MAY MOVE  
THROUGH IN THE AFTERNOON, WITH SOME DIURNAL CUMULUS POSSIBLE AS  
WELL. LIGHT AND VARIABLE WINDS ARE EXPECTED TUESDAY NIGHT.  
 
ANY SHOWERS AND STORMS SHOULD REMAIN TO THE NORTH OF THE AREA  
TUESDAY AFTERNOON, CLOSER TO THE STATIONARY FRONT. THIS  
ACTIVITY MAY SAG SOUTHWARD INTO THE AREA TUESDAY EVENING AND  
NIGHT, AS THE FRONT SHIFTS SOUTHWARD AS A COLD FRONT TOWARD THE  
AREA. THE BETTER CHANCES WOULD BE NORTH AND WEST OF MADISON AT  
THIS TIME.  
 
WOOD  
 
 
   
MARINE  
 
ISSUED 1230 PM CDT MON MAY 25 2026  
 
HIGH PRESSURE AROUND 30.2 INCHES WILL CONTINUE TO DRIFT EAST TO  
THE EASTERN GREAT LAKES TODAY. FOG HAS LARGELY DISSIPATED  
ACROSS THE LAKE. MODEST SOUTHERLY WINDS WILL CONTINUE TONIGHT  
INTO TUESDAY, WHILE HIGH PRESSURE AROUND 30.3 INCHES IS EXPECTED  
TO BUILD TOWARD EASTERN HUDSON BAY TUESDAY INTO WEDNESDAY. THIS  
WILL EVENTUALLY MOVE A COLD FRONT SOUTHWARD OVER LAKE MICHIGAN  
FOR TUESDAY NIGHT AND WEDNESDAY. WINDS WILL SHIFT NORTHEASTERLY  
BEHIND THE FRONT. ANOTHER POTENTIAL COLD FRONT SLIDING DOWN THE  
LAKE POSSIBLE FRIDAY.  
 
KUROSKI  
 
 
   
MKX WATCHES/WARNINGS/ADVISORIES  
 
WI...NONE.  
LM...NONE.  
 
 
 
 
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