922  
FXUS63 KMKX 011102  
AFDMKX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
602 AM CDT MON JUN 1 2026  
   
KEY MESSAGES
 
 
- WITH THE DRY AND WARMING TREND, KEEPING AN EYE ON POTENTIAL  
FOR ELEVATED FIRE WEATHER CONDITIONS THROUGH THE WEEK.  
 
- TRENDING WARM AND HUMID THURSDAY INTO THE WEEKEND WITH  
MULTIPLE CHANCES FOR SHOWERS AND STORMS.  
 

 
   
UPDATE
 
 
ISSUED 600 AM CDT MON JUN 1 2026  
 
SHOWERS HAVE DIMINISHED THIS MORNING. THE ONGOING FORECAST  
REMAINS ON TRACK WITH HIGH PRESSURE TO THE NORTH INFLUENCING THE  
PATTERN ACROSS SOUTHERN WI. NORTHEASTERLY ONSHORE FLOW WILL KEEP  
TEMPS COOLER IN THE 60S FOR LAKESHORE AREAS WHILE INLAND AREAS  
ARE EXPECTED TO WARM INTO THE 70S AND APPROACH 80F FURTHER  
WEST.  
 
WAGNER  
 

 
   
SHORT TERM
 
 
ISSUED 1114 PM CDT SUN MAY 31 2026  
 
REST OF TONIGHT THROUGH WEDNESDAY:  
 
AN AREA OF LIGHT SHOWERS OVER CENTRAL MN AND SOUTHWEST WI IS  
ASSOCIATED WITH MID LEVEL VORTICITY ADVECTION AND WEAK LOW LEVEL  
WARM AIR ADVECTION. THIS FORCING WILL CONTINUE TO SLOWLY SHIFT  
EASTWARD OVERNIGHT INTO MONDAY. WITH CLOUD BASES BETWEEN 8000  
AND 10KFT AND DRY AIR BELOW IT, ONLY SPRINKLES AND LIGHT RAIN  
ARE MAKING IT TO THE GROUND.  
 
WITH THE MID LEVEL CLOUDS EXPECTED TO SIT OVER SOUTHERN WI FOR  
MOST OF THE DAY, OUR HIGH TEMPS MAY BE LOWER THAN WHAT THE NBM  
AND OTHER CURRENT GUIDANCE SUGGESTS. I LOWERED THE MAX T A  
COUPLE DEGREES, BUT WE WILL HAVE TO WATCH THE TEMP TRENDS.  
 
IN ADDITION, THE UPPER LOW SITTING OVER THE NORTHEAST WILL  
SWING A TROUGH INTO MICHIGAN MONDAY MORNING. THIS WILL PUSH  
COLDER, LAKE- COOLED AIR FROM EAST TO WEST ACROSS SOUTHERN WI  
MONDAY MORNING (BACK DOOR COLD FRONT). THIS ONE DOES NOT LOOK AS  
STRONG AS THE ONE ON SATURDAY, BUT WE CAN STILL PLAN FOR A  
STEADY EASTERLY WIND AND COOLER TEMPERATURES NEAR THE LAKE.  
 
TUESDAY WINDS WILL STILL BE EASTERLY BUT LIGHTER. SUNSHINE WILL  
HELP TEMPS RISE INTO THE UPPER 70S FOR INLAND AREAS. THE SURFACE  
RIDGE WILL START TO SHIFT EAST TOWARD THE LOWER GREAT LAKES ON  
WEDNESDAY. THIS WILL ALLOW FOR WINDS TO BECOME MORE SOUTHERLY BY  
LATE AFTERNOON AND TEMPS TO RISE ABOVE 80 INLAND. THE LAKE  
BREEZE WILL STILL PLAY A ROLE IN THE LAKESHORE TEMPERATURES.  
 
CRONCE  
 

 
   
LONG TERM
 
 
ISSUED 1114 PM CDT SUN MAY 31 2026  
 
THURSDAY THROUGH SUNDAY:  
 
AN ACTIVE WEATHER PATTERN WILL SET UP FOR THE LATTER HALF OF THE  
WEEK. THE INTERACTION BETWEEN SHORTWAVES TRACKING ALONG THE  
U.S./CANADIAN BORDER AND ALSO FROM THE SOUTHERN PLAINS TO THE  
UPPER MIDWEST WILL DRAW GULF MOISTURE INTO THE REGION. A SLOW-  
MOVING COLD FRONT WILL BE THE FOCUS FOR CHANCES OF SHOWERS AND  
THUNDERSTORMS IN SOUTHERN WI. THURSDAY NIGHT COULD BRING OUR  
FIRST ROUND. SUBSEQUENT CHANCES FOR SHOWERS/STORMS WILL DEPEND  
ON WHERE THE OUTFLOW BOUNDARIES AND EFFECTIVE FRONT SET UP  
BEYOND THAT.  
 
IT LOOKS LIKE A PERIOD OR TWO OF SEVERE STORMS SHOULD BE  
POSSIBLE BASED ON THE WARM AND HUMID ENVIRONMENT WITH DECENT  
SYNOPTIC FORCING.  
 
BEYOND SUNDAY, A CLOSED UPPER LOW WILL SET UP OVER THE WEST  
COAST. THIS SHOULD KEEP US IN THE WARM AND HUMID SOUTHERLY FLOW  
FOR A WHILE, SO EXPECT SMALL CHANCES FOR SHOWERS AND STORMS IN  
THIS PATTERN.  
 
CRONCE  
 

 
   
AVIATION
 
 
ISSUED 600 AM CDT MON JUN 1 2026  
 
SHOWERS HAVE DIMINISHED AND HIGH CLOUDS LINGER THIS MORNING.  
HOWEVER, VFR CONDITIONS WITH EAST-NORTHEASTERLY WINDS WILL  
PREVAIL AS HIGH PRESSURE SITS OVER THE GREAT LAKES REGION  
TODAY.  
 
WAGNER  
 

 
   
MARINE
 
 
ISSUED 1114 PM CDT SUN MAY 31 2026  
 
WIDESPREAD GALES ARE NOT ANTICIPATED THROUGH THE PERIOD ACROSS THE  
OPEN WATERS OF LAKE MICHIGAN. 30.4 INCH HIGH PRESSURE WILL REMAIN  
ENTRENCHED ACROSS THE HUDSON BAY THROUGH MONDAY, RESULTING IN  
GENERALLY NORTH TO NORTHEASTERLY BREEZES. THE CENTER OF THE HIGH  
WILL BUILD SOUTH OVER LAKE MICHIGAN TUESDAY AND TUESDAY NIGHT,  
LEADING TO GENERALLY NORTH-NORTHEAST WINDS OVER SOUTHERN LAKE  
MICHIGAN AND LIGHT WESTERLIES FURTHER NORTH. SAID HIGH WILL  
GRADUALLY SHIFT EAST ON WEDNESDAY, ALLOWING WINDS TO TREND  
SOUTHERLY ACROSS THE ENTIRETY OF THE LAKE. 29.7 INCH LOW PRESSURE  
WILL SHIFT FROM THE CANADIAN GREAT PLAINS INTO ONTARIO WEDNESDAY  
NIGHT THROUGH THURSDAY, RESULTING IN INCREASING SOUTHWESTERLY  
WINDS ACROSS THE WATERS. GUSTS UP TO 30 KNOTS WILL BE POSSIBLE  
OVER THE NORTHERN THIRD OF THE LAKE DURING THIS TIME FRAME.  
 
THE WEATHER PATTERN WILL TREND MORE ACTIVE REGIONALLY THURSDAY NIGHT  
INTO THE WEEKEND, WITH MULTIPLE CHANCES FOR SHOWERS AND STORMS  
RETURNING TO THE OPEN WATERS. STRONG STORM POTENTIAL REMAINS  
UNCERTAIN AT THIS TIME, WITH TRENDS BEING MONITORED OVER COMING  
FORECASTS.  
 
CRONCE  
 

 
   
FIRE WEATHER
 
 
ISSUED 1114 PM CDT SUN MAY 31 2026  
 
WITH LITTLE MEASURABLE RAINFALL ANTICIPATED OVERNIGHT AND PRECIP-  
FREE CONDITIONS CONTINUING, A COMBINATION OF WARM AND DRY AIR  
WILL LEAD TO WIDESPREAD RELATIVE HUMIDITIES IN THE LOWER 20  
PERCENT RANGE EACH AFTERNOON FROM MONDAY THROUGH WEDNESDAY.  
LIGHT WINDS ARE EXPECTED TO KEEP FIRE WEATHER CONDITIONS WELL  
BELOW RED FLAG WARNING THRESHOLDS. EXERCISE CAUTION IF PLANNING  
TO BURN.  
 
CRONCE  
 

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

 
 

 
 
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