501  
FXUS63 KMPX 052056  
AFDMPX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN  
356 PM CDT SAT SEP 5 2026  
   
KEY MESSAGES
 
 
- CHANCES FOR THUNDERSTORMS SATURDAY & SUNDAY MORNING ACROSS  
WESTERN MINNESOTA.  
 
- MORE WIDESPREAD RAINFALL POSSIBLE MONDAY INTO TUESDAY, THOUGH  
AREAS ACROSS NORTHERN MN ARE FAVORED FOR HEAVIEST AMOUNTS.  
 
- MORE SEASONABLE AIRMASS ARRIVES FOR THE REST OF THE WEEK AFTER  
TUESDAY.  
 

 
   
DISCUSSION
 
 
ISSUED AT 335 PM CDT SAT SEP 5 2026  
 
TODAY THROUGH SUNDAY...AFTER SOME MORNING STRATUS, SKIES HAVE  
STARTED TO CLEAR OUT SO HAVE A MIX OF SUN AND CLOUDS ACROSS THE  
REGION. WHERE SKIES WERE CLEAR, TEMPERATURES WERE IN THE MID TO  
UPPER 80S, BUT WHERE THE CLOUDS LINGERED, TEMPERATURES WERE IN  
THE UPPER 70S TO LOWER 80S. FOR THE REST OF THE DAY, EXPECT DRY  
CONDITIONS WITH LIGHT WINDS.  
 
LATER TONIGHT, EXPECT SCATTERED THUNDERSTORMS TO DEVELOP ACROSS  
THE EASTERN DAKOTAS INTO WESTERN MN ON THE LEADING EDGE OF SOME  
H850 THETA_E ADVECTION. THESE SHOULD WEAKEN AS THEY APPROACH THE  
FORECAST AREA, BUT ADDITIONAL DEVELOPMENT IS EXPECTED IN THE  
AFTERNOON AND EVENING ALONG THE AXIS OF INSTABILITY ACROSS  
WESTERN MN. THESE STORMS COULD PRODUCE GUSTY WINDS AND HAIL, AND  
THE MARGINAL RISK (1 OUT OF 5) REMAINS ACROSS WESTERN MINNESOTA.  
THESE STORMS SHOULD WEAKEN AS THEY MOVE EAST, SO NOT  
ANTICIPATING THEM TO CROSS THE I-35 CORRIDOR.  
 
MONDAY THROUGH FRIDAY...ON MONDAY, A POTENT UPPER LEVEL WAVE  
WILL KICK ACROSS THE HIGH PLAINS, AND BRING WIDESPREAD  
PRECIPITATION ACROSS INTERNATIONAL BORDER CLOSER TO THE SURFACE  
LOW. A TRAILING COLD FRONT SOUTH OF THIS LOW WILL PASS THROUGH  
THE REGION, AND THIS SHOULD BRING PRECIPITATION TO MOST  
LOCATIONS FROM MONDAY INTO TUESDAY MORNING. BUT GIVEN THE  
TIMING, THE STORMS WILL PROBABLY BE AT THEIR WEAKEST AND MOVING  
FAIRLY QUICK, SO NOT ANTICIPATING SOAKING RAINS. A FEW OF THE  
STRONGEST STORMS COULD PRODUCE DAMAGING WINDS OR LARGE HAIL, AND  
SPC MAINTAINS THE MARGINAL RISK.  
 
RAIN WILL EXIT THE REGION TUESDAY MORNING, AND ANY REDEVELOPMENT  
LATER IN THE DAY SHOULD BE TO THE EAST ACROSS WISCONSIN. ON  
WEDNESDAY, BREEZY WEST WINDS OF 25 TO 30 MPH WILL DEVELOP IN THE  
WAKE OF THE COLD FRONT. HIGHS WILL ONLY BE IN THE 70S. LOOKING  
AHEAD, THERE ARE SMALL CHANCES FOR STORMS LATER IN THE WEEK AND  
NEXT WEEKEND.  
 

 
   
AVIATION /18Z TAFS THROUGH 00Z MONDAY/
 
 
ISSUED AT 106 PM CDT SAT SEP 5 2026  
 
PERSISTENT STRATUS HAS STARTED TO SHOW SIGNS OF BREAKING UP, SO  
HAVE A ONE OR TWO MORE HOURS OF MVFR CIGS IN THE TAFS, AND THEN  
EXPECT VFR CONDITIONS THE REST OF THE AFTERNOON AND EVENING.  
OVERNIGHT, FORECAST GUIDANCE HAS STARTED BACK OFF A BIT ON  
OVERNIGHT STORMS, KEEPING THEM ACROSS WESTERN AND SOUTHWEST  
MINNESOTA, SO UPDATED THE TAFS TO REFLECT THOSE TRENDS.  
 
KMSP...  
SKIES BEGINNING TO LIFT AND BREAK UP, SO EXPECT JUST AN HOUR OR  
TWO OF MVFR CEILINGS BEFORE VFR CONDITIONS SETTLE IN FOR THE  
REST OF THE TAF PERIOD.  
 
OVERNIGHT AND SUNDAY, THE CHANCE FOR THUNDERSTORMS HAS DECREASE,  
SO HAVE A PROB30 FOR VFR -SHRA, AND DID NOT MENTION THUNDER IN  
THE TAFS.  
 
/OUTLOOK FOR KMSP/  
MON...VFR WITH CHC SHRA/MVFR. WIND SE 10-15KTS.  
TUE...SHRA/MVFR LIKELY WITH CHC TSRA, MAINLY IN THE MORNING.  
CLEARING LATE. WIND S 10-15KTS BECOMING W.  
WED...VFR. WIND W 15G25KTS.  
 

 
   
MPX WATCHES/WARNINGS/ADVISORIES
 
 
MN...NONE.  
WI...NONE.  
 

 
 

 
 
DISCUSSION...JRB  
AVIATION...JRB  
 
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