556  
FXUS63 KMKX 200908  
AFDMKX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
308 AM CST THU NOV 20 2025  
   
KEY MESSAGES  
 
- FOG EXPECTED TO CONTINUE THROUGH THE EARLY MORNING HOURS,  
LIFTING AFTER SUNRISE. A FEW POCKETS OF DENSE FOG (1/4 MILE OR  
LESS) ARE POSSIBLE IN SOUTHWESTERN WISCONSIN.  
 
- AREAS OF DRIZZLE (10-20% CHANCES) ARE EXPECTED THROUGH MUCH OF  
THE DAY, LOWERING VISIBILITIES AT TIMES.  
 
- TEMPERATURES HOVERING NEAR OR JUST ABOVE NORMAL THIS WEEKEND  
INTO EARLY NEXT WEEK.  
 
- MORE ACTIVE PATTERN WITH A COOLING TREND WEDNESDAY AND  
THURSDAY (THANKSGIVING) NEXT WEEK.  
 
 
   
SHORT TERM  
 
ISSUED 308 AM CST THU NOV 20 2025  
 
TODAY THROUGH TONIGHT:  
 
MAIN CONCERN THROUGH THE EARLY MORNING HOURS IS FOG DEVELOPMENT  
ACROSS SOUTHWESTERN TO FAR SOUTH-CENTRAL WISCONSIN. PATCHY DENSE  
FOG HAS DEVELOPED ACROSS LAFAYETTE, GREEN, AND ROCK COUNTIES,  
WITH A SPECIAL WEATHER STATEMENT IN EFFECT FOR 1/2 TO 1/4 MILE  
VISIBILITIES THROUGH 8 AM CST THIS MORNING. POCKETS OF DRIZZLE  
CONTINUING OVER SOUTHEASTERN WISCONSIN ARE KEEPING VISIBILITES  
HIGHER IN THE 1-3 MILE RANGE, WITH VISIBILITIES ALONG LAKE  
MICHIGAN REMAINING AT 4-5 MILES. FOG WILL LIFT AFTER SUNRISE  
THIS MORNING, WITH AREAS OF DRIZZLE EXPECTED TO CONTINUE  
THROUGHOUT THE DAY (VISIBILITIES LOWERED WITHIN THESE DRIZZLE  
PATCHES), TAPERING OFF FROM NORTH TO SOUTH INTO THE OVERNIGHT  
HOURS.  
 
HIGH TEMPERATURES TODAY WILL REMAIN IN THE 40S, WITH SURFACE  
WAA BATTLING LOW CLOUDS AND DRIZZLE. SOME MODELS HAVE  
TEMPERATURES REACHING THE 50S, WHILE OTHERS KEEP TEMPERATURES AS  
LOW AS 40 DEGREES THROUGH THE AFTERNOON. THINKING THAT WAA WILL  
AT LEAST SERVE TO BRING IN HIGHS IN THE MID-40S, BUT THE WIDE  
SPREAD OF TEMPERATURE VALUES MAY REQUIRE UPDATES THROUGH THE DAY  
TODAY.  
 
TONIGHT, AS DRIZZLE TAPERS OFF AND LOW CLOUDS EXIT BEHIND A COLD  
FRONT, EXPECT TEMPERATURES TO FALL INTO THE UPPER 30S NEAR LAKE  
MICHIGAN, MID-30S INLAND, AND LOW 30S IN SOUTHWESTERN WISCONSIN.  
 
MH  
 
 
   
LONG TERM  
 
ISSUED 308 AM CST THU NOV 20 2025  
 
FRIDAY THROUGH THURSDAY:  
 
OVERALL LOOKING MOSTLY DRY WITH NEAR NORMAL TEMPS FRIDAY THROUGH  
THE WEEKEND. THE DRIER TREND CONTINUES FOR FRIDAY AS THE SHORTWAVE  
TROUGH FLATTENS AND KEEPS THE MORE FAVORABLE SYNOPTIC LIFT AND  
SURFACE LOW ALONG WITH MOISTURE SOUTH OF WI. WILL BE SLIGHTLY  
COOLER WITH NORTH WINDS FRIDAY WHILE HIGH PRESSURE GRADUALLY  
BUILDS ACROSS THE UPPER MIDWEST OVERNIGHT THROUGH SATURDAY.  
ANOTHER WEAK, DRY COLD FRONT IS PROGGED TO QUICKLY MOVE THROUGH  
THE AREA OVERNIGHT SATURDAY, BUT WILL MOSTLY BE A WIND SHIFT  
FOLLOWED BY ANOTHER PASSING SURFACE HIGH THROUGH THE DAY SUNDAY.  
 
WILL BEGIN TO SEE AN UPPER-LEVEL RIDGE BEGIN TO BUILD IN FOR THE  
START OF NEXT WEEK AND WARM THINGS UP A BIT THROUGH MONDAY.  
HOWEVER, 500MB CLUSTER MODEL ANALYSIS CONTINUE TO HINT A LONGWAVE  
TROUGH TO DIG ACROSS THE CENTRAL CONUS TUESDAY THROUGH MIDWEEK,  
WHICH MAY BRING A BOUT OF PRECIP TO THE UPPER MIDWEST REGION.  
LATEST LONG RANGE MODEL GUIDANCE FAVOR A MILD PATTERN FOR THE  
START OF THE WEEK, THUS LOOKING MOSTLY LIKE ANY PRECIP WOULD BE  
RAIN AT THIS TIME. AND LOOKING FURTHER AHEAD TOWARD THE  
THANKSGIVING HOLIDAY, THERE IS A PERSISTING SIGNAL FOR THINGS COOL  
DOWN, WITH POTENTIAL FOR BELOW NORMAL TEMPS FOR THE SECOND HALF  
OF THE WEEK. STILL SEVERAL DAYS OUT AND THERE WILL BE PLENTY OF  
CHANGES WITH NEXT WEEK'S SYSTEM AS UNCERTAINTY REMAINS HIGH GIVEN  
HINTS OF PHASING MID-LEVEL TROUGHS.  
 
WAGNER  
 
 
   
AVIATION  
 
ISSUED 308 AM CST THU NOV 20 2025  
 
A MIX OF DRIZZLE AND FOG HAS REDUCED VISIBILITIES ACROSS THE  
MAJORITY OF SOUTHERN WISCONSIN, WITH NEAR LAKESHORE VISIBILITIES  
FALLING TO AROUND 4 SM, INLAND TERMINALS BETWEEN 2 AND 3 SM, AND  
FAR SOUTHWESTERN WISCONSIN (IOWA, LAFAYETTE, AND GREEN  
COUNTIES) SEEING VISIBILITIES BETWEEN 1/2 AND 1/4 MILE. FOG WILL  
GRADUALLY LIFT AFTER SUNRISE THIS MORNING AS SOUTHWESTERLY  
BREEZES BEGIN (AROUND 8 KT), BUT AREAS OF DRIZZLE ARE EXPECTED  
TO CONTINUE TO LOWER VISIBILITIES THROUGH THE MORNING HOURS.  
CEILINGS WILL GRADUALLY RECOVER INTO MVFR INTO THE LATE  
AFTERNOON AND EVENING HOURS AS DRIZZLE WILL TAPERS OFF FROM  
NORTH TO SOUTH. A COLD FRONT WILL SHIFT WINDS TO NORTHWESTERLY  
OVERNIGHT, AND WILL BRING A RETURN TO VFR CONDITIONS INTO FRIDAY  
MORNING.  
 
MH  
 
 
   
MARINE  
 
ISSUED 308 AM CST THU NOV 20 2025  
 
HIGH PRESSURE WILL REMAIN OVER THE EASTERN GREAT LAKES THROUGH  
TODAY, WHILE LOW PRESSURE PROGRESSES EASTWARD THROUGH NORTHERN  
ONTARIO AND DEEPENS IN THE HUDSON BAY OVERNIGHT TONIGHT. EXPECT  
LIGHT SOUTHWESTERLY WINDS TO DEVELOP THIS MORNING, BECOMING  
BREEZY THIS AFTERNOON AND EVENING. WINDS SHIFT TO BECOME  
NORTHWESTERLY AND DIMINISH OVERNIGHT AS A COLD FRONT FROM THIS  
LOW PROGRESSES EASTWARD ACROSS THE LAKE. LIGHT NORTHWEST WINDS  
CONTINUE THROUGH FRIDAY, BECOMING LIGHT AND VARIABLE SATURDAY AS  
WEAK HIGH PRESSURE PASSES OVER THE LAKE. WINDS WILL BECOME  
SOUTHWESTERLY AGAIN SATURDAY NIGHT INTO SUNDAY, AND WESTERLY BY  
SUNDAY NIGHT AS AN ADDITIONAL LOW PRESSURE SYSTEM DEEPENS ACROSS  
THE HUDSON BAY AND BRINGS ANOTHER WEAK COLD FRONT THROUGH THE  
LAKE.  
 
MH  
 
 
   
MKX WATCHES/WARNINGS/ADVISORIES  
 
WI...NONE.  
LM...NONE.  
 
 
 
 
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