581  
FXUS63 KMKX 290236  
AFDMKX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
936 PM CDT FRI MAR 28 2025  
   
KEY MESSAGES  
 
- SHOWERS AND A FEW THUNDERSTORMS POSSIBLE (30 TO 60 PERCENT  
CHANCES) TONIGHT AS A FRONT SAGS SOUTHWARD ACROSS CENTRAL  
WISCONSIN. THUNDERSTORM CHANCES CONTINUE THROUGH THE DAY  
SATURDAY, SLOWLY SINKING SOUTHWARD INTO THE EVENING HOURS.  
 
- ANOTHER LOW PRESSURE SYSTEM TRACKS INTO SOUTHERN WISCONSIN ON  
SUNDAY, BRINGING HIGH CHANCES (60 TO 80 PERCENT) OF SHOWERS  
AND A FEW THUNDERSTORMS. NEAR THE WISCONSIN/ILLINOIS BORDER, A  
FEW STORMS MAY BECOME STRONG ENOUGH TO PRODUCE HAIL.  
 
- PRECIPITATION CONTINUES INTO SUNDAY EVENING, WITH COLDER AIR  
ALLOWING FOR A CHANGEOVER TO A RAIN AND SNOW MIX OVERNIGHT.  
SLEET AND FREEZING RAIN MAY MIX IN WITH THE SNOW ACROSS  
CENTRAL WISCONSIN AS TEMPERATURES DROP BELOW FREEZING.  
 
- DRY AND COOL CONDITIONS PREVAIL THROUGH THE FIRST HALF OF NEXT  
WEEK, WITH THE NEXT PRECIPITATION CHANCES MIDWEEK.  
 
 
   
UPDATE  
 
ISSUED 937 PM CDT FRI MAR 28 2025  
 
NOT MUCH CHANGE FROM THE PREVIOUS FORECAST WITH THE WARM FRONT  
STALLED ACROSS OUR FAR NORTH SIDE OF THE CWA. AREAS LIKE FOND DU  
LAC AND SHEBOYGAN ARE SITTING IN THE LOW 40S WHILE AREAS SOUTH  
ARE STILL IN THE 60S AND 70S. MOST OF THE SHOWER AND  
THUNDERSTORM ACTIVITY REMAIN NORTH OF THE WARM FRONT AND SHOULD  
REMAIN OUT OF OUR AREA THROUGH THE REMAINDER OF THE EVENING.  
HOWEVER, AS THE WARM FRONT SAGS A BIT SOUTHWARD OVERNIGHT, SOME  
00Z CAMS HINT AT SOME OF THIS ACTIVITY CLIPPING THE NORTHERN  
TIER OF COUNTIES OVERNIGHT THROUGH SATURDAY MORNING. OVERALL NOT  
EXPECTING TOO MUCH IN THE WAY WITH THIS OVERNIGHT ACTIVITY.  
HOWEVER, STILL LOOKING AT A BETTER POTENTIAL FOR SHOWERS AND  
STORMS INTO THE DAY SATURDAY. AREAS NORTH OF I-94 WILL SEE  
SCATTERED CHANCES THROUGH THE MORNING WITH THE CHANCES SPREADING  
SOUTHWARD THROUGH THE AFTERNOON.  
 
WAGNER  
 
 
   
SHORT TERM  
 
ISSUED 346 PM CDT FRI MAR 28 2025  
 
TONIGHT THROUGH SUNDAY NIGHT:  
 
THE WARM FRONTAL BOUNDARY HAS LIFTED INTO AND BECOME STATIONARY  
ACROSS CENTRAL WISCONSIN FROM SHEBOYGAN TO NORTHERN MARQUETTE  
COUNTY. TO THE SOUTH OF THIS BOUNDARY, TEMPERATURES IN THE  
MID-70S ARE WIDESPREAD, WITH TEMPERATURES NEAR 80 DEGREES IN  
SOUTHWESTERN WISCONSIN. HOWEVER, TO THE NORTH OF THE BOUNDARY,  
HIGHS AROUND 60 DEGREES ARE EXPECTED. THIS BOUNDARY WILL BE THE  
FOCAL POINT FOR SHOWERS AND A FEW ISOLATED THUNDERSTORMS TONIGHT  
INTO SATURDAY MORNING AS A FILLING REMNANT OF A LOW PRESSURE  
SYSTEM PROGRESSES ALONG IT ACROSS CENTRAL TO NORTHERN WISCONSIN.  
 
SATURDAY MORNING, AN ADDITIONAL AREA OF LOW PRESSURE DEVELOPS IN  
THE COLORADO ROCKIES AND EJECTS NORTHEASTWARD INTO THE PLAINS.  
THIS WILL RESULT IN THE NEARLY STATIONARY FRONT SAGGING  
SOUTHWARD AND BRINGING SHOWER AND THUNDERSTORM ACTIVITY ACROSS  
MORE OF SOUTHERN WISCONSIN. IN ADDITION, ISOLATED TO SCATTERED  
SHOWER ACTIVITY WILL DEVELOP IN THE WAA REGIME ACROSS ILLINOIS  
AND SOUTHEASTERN IOWA, POTENTIALLY NUDGING UP INTO THE REMAINDER  
OF SOUTHERN WISCONSIN DURING THE AFTERNOON TO EVENING HOURS. A  
SHARP GRADIENT IN TEMPERATURES WILL EXIST ACROSS SOUTHERN  
WISCONSIN ON SATURDAY, WITH POTENTIAL FOR CENTRAL WISCONSIN TO  
REMAIN IN THE 40S TO LOW 50S WHILE AREAS NEAR THE WISCONSIN AND  
ILLINOIS BORDER REACH THE UPPER 60S TO LOW 70S SOUTH OF THE MAIN  
PRECIPITATION BAND.  
 
OVERNIGHT SATURDAY AS LOW PRESSURE APPROACHES, THE STATIONARY  
FRONT TRANSITIONS BACK INTO A WARM FRONT AND LIFTS INTO NORTHERN  
WISCONSIN, PUTTING SOUTHERN WISCONSIN BACK INTO THE WARM SECTOR  
AND BRINGING SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE  
MAJORITY OF THE AREA. THIS ACTIVITY WILL BEGIN TO TAPER OFF INTO  
SUNDAY MORNING, WITH A DRY SLOT FEATURE PUSHING IN FOR A SHORT  
PERIOD OF TIME.  
 
SUNDAY, HIGHS IN THE MID-50S IN THE NORTH TO THE UPPER 60S TO  
THE SOUTH AS OVERCAST SKIES PREVAIL. EXPECTING A BRIEF PERIOD OF  
DRY TO ISOLATED SHOWERY ACTIVITY IN THE EARLY MORNING HOURS  
BEFORE A COLD FRONT SWEEPS WEST TO EAST DURING THE MIDDAY TO  
EVENING HOURS. THIS FRONT WILL KICK OFF A LINE OF SHOWERS AND  
THUNDERSTORMS, WITH STORMS NEAR THE ILLINOIS BORDER SEEING  
POTENTIAL TO BECOME BRIEFLY STRONG AND PRODUCE HAIL AND PERHAPS  
GUSTY WINDS.  
 
AS THE COLD FRONT EXITS INTO LAKE MICHIGAN, EXPECT A TRANSITION  
IN THE WRAP-AROUND PRECIPITATION FROM RAIN TO A RAIN AND SNOW  
MIX. A FEW AREAS OF FREEZING RAIN AND SLEET MAY DEVELOP ACROSS  
CENTRAL WISCONSIN AS TEMPERATURES FALL BELOW FREEZING, BUT  
ELSEWHERE TEMPERATURES REMAIN AT OR JUST ABOVE FREEZING. NOT  
ANTICIPATING WIDESPREAD ACCUMULATIONS OF SNOWFALL, BUT COULD SEE  
A FEW TENTHS ON GRASSY SURFACES UNDER HEAVIER SNOW SHOWERS.  
 
MH  
 
 
   
LONG TERM  
 
ISSUED 346 PM CDT FRI MAR 28 2025  
 
MONDAY THROUGH FRIDAY:  
 
ANY LINGERING RAIN/SNOW MIX SHOULD END MONDAY MORNING, AS COLD AIR  
ADVECTION BRINGS DRIER AIR INTO THE AREA. HIGH PRESSURE SHIFTING  
ACROSS AND EAST OF THE REGION LATER MONDAY INTO TUESDAY SHOULD  
BRING A PERIOD OF DRY CONDITIONS WITH CHILLY TEMPERATURES.  
 
ENSEMBLES SUGGEST A PERIOD OF STRONG WARM AIR AND MOISTURE  
ADVECTION LATER TUESDAY NIGHT INTO WEDNESDAY, WITH SATURATED AIR  
COLUMNS AND A RESULTANT HIGH POTENTIAL (70 PERCENT PLUS) FOR  
PRECIPITATION. TEMPERATURES MAY BE COLD ENOUGH FOR A RAIN/SNOW MIX  
IN NORTHERN PORTIONS OF THE AREA LATER TUESDAY NIGHT, WITH MAINLY  
RAIN WEDNESDAY. ENSEMBLE MEANS GENERALLY HAVE THE LOW TRACK OVER  
OR NORTH OF THE FORECAST AREA, THOUGH THERE IS STILL A GOOD AMOUNT  
OF SPREAD AND UNCERTAINTY IN THE LOW TRACK. LATER FORECASTS  
HOPEFULLY WILL PROVIDE SOME MORE CERTAINTY WITH THE LOW TRACK AND  
ANY THUNDER POTENTIAL IN THE SOUTHERN PARTS OF THE AREA. MILDER  
TEMPERATURES ARE ANTICIPATED WEDNESDAY ACROSS THE AREA.  
 
THE DRY SLOT SHOULD MOVE THROUGH THE REGION WEDNESDAY NIGHT INTO  
THURSDAY, THOUGH THERE MAY STILL BE SOME LINGERING RAIN SHOWERS  
DURING THIS PERIOD. BREEZY WINDS ARE ANTICIPATED AS WELL. HIGH  
PRESSURE MOVING IN BY FRIDAY MAY BRING DRY CONDITIONS BACK TO THE  
AREA.  
 
WOOD  
 
 
   
AVIATION  
 
ISSUED 937 PM CDT FRI MAR 28 2025  
 
STALLED WARM FRONT SITS ACROSS CENTRAL WI COUNTIES THIS EVENING  
RESULTING IN NORTHEASTERLY WINDS AND LOWERING CEILINGS FOR SBM.  
HOWEVER AREAS SOUTH OF THE WARM FRONT CONTINUE TO SEE PREVAILING  
VFR CEILINGS WITH BREEZY SOUTHWESTERLY WINDS. LLWS REMAINS A  
CONCERN LATE THIS EVENING AND OVERNIGHT WITH A STRONGER LOW-  
LEVEL JET WORKING ITS WAY ACROSS SOUTHERN HALF OF WI. EXPECTING  
WINDS TO GRADUALLY DIMINISH AND TURN INTO SATURDAY AS THE WARM  
FRONT BEGINS TO SAG A BIT SOUTHWARD. AS THE WARM FRONT SAGS  
SOUTHWARD, EXPECT LOWER MVFR TO IFR CONDITIONS TO DEVELOP ALONG  
IT AND SPREAD SOUTHWARD WITH IT THROUGH THE DAY SATURDAY.  
ACCOMPANYING THESE LOWER FLIGHT CONDITIONS WILL BE INCREASE  
SHOWERS CHANCES ALONG WITH A THUNDERSTORM OR TWO THROUGH  
TOMORROW EVENING.  
 
WAGNER  
 
 
   
MARINE  
 
ISSUED 346 PM CDT FRI MAR 28 2025  
 
LOW PRESSURE WILL SLOWLY FILL AS IT MOVES EAST ACROSS SOUTHERN  
MINNESOTA INTO NORTHERN WISCONSIN TONIGHT. A WARM FRONT IS  
CURRENTLY LOCATED AROUND THE HALFWAY POINT OF THE OPEN WATERS,  
WITH NORTHEASTERLY WINDS TO THE NORTH AND GUSTY SOUTHWESTERLY  
WINDS TO THE SOUTH. A SMALL CRAFT ADVISORY IS IN EFFECT ACROSS  
THE SOUTHERN WISCONSIN NEARSHORE ZONES THROUGH TONIGHT FOR  
THESE GUSTY SOUTHWESTERLY WINDS. THIS FRONT IS EXPECTED TO  
REMAIN GENERALLY STATIONARY THROUGH TONIGHT, THEN SINK SOUTHWARD  
SLOWLY ON SATURDAY. SOME THUNDERSTORMS WILL BE POSSIBLE AT  
TIMES TONIGHT INTO SATURDAY ALONG THE FRONTAL BOUNDARY, BUT  
GALES ARE NOT EXPECTED.  
 
ANOTHER AREA OF LOW PRESSURE WILL DEVELOP ALONG THE COLORADO  
FRONT RANGE ON SATURDAY, LIFTING ACROSS THE MIDWEST OVERNIGHT  
SATURDAY INTO SUNDAY AND CLIPPING THE SOUTHERN HALF OF LAKE  
MICHIGAN SUNDAY EVENING. EXPECT EASTERLY FLOW ACROSS THE  
NORTHERN TWO-THIRDS OF THE LAKE AND SOUTHEASTERLY WINDS ACROSS  
THE SOUTHERN THIRD. LOW PRESSURE THEN LIFTS INTO EASTERN ONTARIO  
OVERNIGHT SUNDAY, WITH PREVAILING NORTHERLY WINDS ACROSS LAKE  
MICHIGAN INTO EARLY NEXT WEEK.  
 
MH  
 
 
   
MKX WATCHES/WARNINGS/ADVISORIES  
 
WI...NONE.  
LM...SMALL CRAFT ADVISORY...LMZ643-LMZ644-LMZ645-LMZ646 UNTIL 7 AM  
SATURDAY.  
 
 
 
 
 
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