026  
FXUS63 KARX 291055  
AFDARX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LA CROSSE WI  
555 AM CDT FRI MAY 29 2026  
   
KEY MESSAGES
 
 
- SMALL RAIN CHANCES WITH SEASONABLY WARM TEMPERATURES THIS  
WEEKEND.  
 
- ABOVE-NORMAL TEMPERATURES WITH DRY WEATHER TO START JUNE.  
 
- HIGHER RAIN CHANCES RETURN TO THE AREA WEDNESDAY INTO  
THURSDAY.  
 

 
   
DISCUSSION
 
 
ISSUED AT 1225 AM CDT FRI MAY 29 2026  
 
TODAY AND TONIGHT  
 
HIGH PRESSURE WILL KEEP THE AREA DRY INTO TONIGHT. WITH 850 MB  
TEMPERATURES, CLOSE TO THURSDAY, HIGH TEMPERATURES WILL ONCE  
AGAIN RANGE FROM THE MID-70S TO MID-80S. LOW TEMPERATURES WILL  
RANGE FROM THE MID-50S TO LOWER 60S.  
 
THIS WEEKEND  
 
THE OMEGA HIGH WILL GRADUALLY PINCH OFF THE HIGH. AS THIS  
OCCURS, THE WESTERN TROUGH SHOULD MOVE FAR ENOUGH EAST THAT  
SCATTERED SHOWERS AND STORMS MAY BE SEEN MAINLY WEST OF THE  
MISSISSIPPI RIVER VALLEY. WITH COOLER 850 MB TEMPERATURES, HIGH  
TEMPERATURES WILL RANGE FROM THE MID-70S TO AROUND 80. LOW  
TEMPERATURES WILL RANGE FROM THE MID-50S TO LOWER 60S ON FRIDAY  
NIGHT AND FROM THE MID-40S TO UPPER 50S ON SATURDAY NIGHT.  
 
SUNDAY NIGHT INTO TUESDAY NIGHT  
 
THE OMEGA HIGH WILL RE-ESTABLISH ITSELF OVER THE UPPER  
MISSISSIPPI RIVER VALLEY ON SUNDAY NIGHT AND MONDAY, AND THEN  
LINGER INTO TUESDAY NIGHT. AS THIS OCCURS, HIGH PRESSURE WILL  
BUILD ACROSS THE AREA. AS A RESULT, THE AREA WILL BE DRY WITH  
HIGH TEMPERATURES IN THE MID- AND UPPER 80S AND LOW TEMPERATURES  
IN THE 50S. WITH MORE SUNSHINE, THIS WILL LIKELY RESULT IN  
DEEPER MIXING. IF THIS OCCURS, THE SURFACE DEW POINTS AND  
RELATIVE HUMIDITIES WILL BE LIKELY TOO HIGH DURING THE  
AFTERNOONS. THIS COULD RESULT IN ELEVATED FIRE WEATHER CONCERNS.  
 
WEDNESDAY INTO THURSDAY  
 
THE NORTHERN STREAM WILL SEE AN AMPLIFIED JET MOVE INTO THE  
PACIFIC NORTHWEST ON MONDAY NIGHT AND NORTHERN PLAINS ON  
TUESDAY. THIS QUICKLY FLATTENS THE OMEGA HIGH OVER THE UPPER  
MISSISSIPPI RIVER VALLEY AND GREAT LAKES ON WEDNESDAY AND  
WEDNESDAY NIGHT. THIS WILL BRING A RETURN TO BETTER CHANCES FOR  
SHOWERS AND STORMS. HOWEVER, WITH MOST-UNSTABLE CAPES GENERALLY  
LESS THAN 500 J/KG AND THE 0-3 KM AND 0-6 KM SHEAR ARE GENERALLY  
LESS THAN 20 KNOTS, ORGANIZED SEVERE WEATHER SEEMS UNLIKELY.  
HIGH TEMPERATURES WILL BE IN THE LOWER AND MID-80S AND LOW  
TEMPERATURES WILL RANGE FROM THE MID-50S TO LOWER 60S.  
 

 
   
AVIATION /12Z TAFS THROUGH 12Z SATURDAY/
 
 
ISSUED AT 555 AM CDT FRI MAY 29 2026  
 
VFR CONDITIONS PREVAIL THROUGH THE TAF PERIOD WITH SCT-BKN HIGH  
CLOUDS AND LIGHT EAST TO SOUTHEAST WINDS OF 10KT OR LESS.  
 

 
   
ARX WATCHES/WARNINGS/ADVISORIES
 
 
WI...NONE.  
MN...NONE.  
IA...NONE.  
 

 
 

 
 
DISCUSSION...BOYNE  
AVIATION...FALKINHAM  
 
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