356  
FXUS63 KMPX 271042 AAA  
AFDMPX  
 
AREA FORECAST DISCUSSION...UPDATED  
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN  
542 AM CDT TUE OCT 27 2020  
   
SHORT TERM
 
(TODAY THROUGH WEDNESDAY)  
ISSUED AT 359 AM CDT TUE OCT 27 2020  
 
THE AXIS OF A SURFACE HIGH PRESSURE RIDGE EXTENDS FROM WESTERN KANSAS  
TO WISCONSIN EARLY THIS MORNING. IT WILL SETTLE FARTHER SOUTH TODAY  
AS LOW PRESSURE OVER ALBERTA DRAGS A CHUNK OF WARMER, DOWNSLOPED  
AIRMASS EASTWARD WITH IT. THE COMBINATION OF THE TWO SYSTEMS WILL  
RESULT IN INCREASING SOUTHWESTERLY SURFACE FLOW TODAY. TEMPERATURES  
WILL ONLY BE SLIGHTLY MILDER THAN YESTERDAY SINCE THE SOURCE REGION  
OF THE AIRMASS IS FROM THE HIGH PRESSURE RIDGE. HOWEVER, THE  
CANADIAN CLIPPER WILL TRACK TO THE NORTHERN GREAT LAKES TONIGHT AND  
THE MILDER AIRMASS ACCOMPANYING IT WILL WORK IN FROM THE NORTHWEST.  
TEMPERATURES WILL REMAIN STEADY FOR TONIGHT. A NICE REBOUND CAN BE  
EXPECTED WEDNESDAY WITH HIGHS IN THE 40S HEAD OF THE TRAILING COLD  
FRONT.  
   
LONG TERM
 
(WEDNESDAY NIGHT THROUGH MONDAY)  
ISSUED AT 359 AM CDT TUE OCT 27 2020  
 
THE EXTENDED FORECAST WILL REMAIN QUIET WITH A WARMING TREND INTO  
NOVEMBER. IT'LL BE SLIGHTLY COOLER ON THURSDAY WITH A SURFACE HIGH  
PRESSURE MOVING EAST THROUGH THE REGION. THERE IS INCREASING  
CONFIDENCE THAT SATURDAY'S HIGH TEMPERATURES WILL BE IN THE LOWER TO  
MID 50S WITH BROAD WARM AIR ADVECTION AND SOUTHERLY FLOW AHEAD OF  
COLD FRONT. A DRY FRONTAL PASSAGE IS LIKELY SATURDAY NIGHT WITH A  
SURFACE HIGH BUILDING IN FOR SUNDAY. THE 00Z MODEL SUITE CONTINUED  
THE TREND WITH A DEEPER MID-LEVEL TROUGH AND COLDER H850  
TEMPERATURES. HIGHS COULD STRUGGLE TO HIT 40 WITH NORTHWESTERLY  
WINDS MAKING IT FEEL COLDER THAN IT IS. TEMPERATURES WILL REBOUND  
INTO THE LOWER 50S AS THE HIGH PRESSURE SLIDES EAST WITH A WARMER  
RETURN FLOW DEVELOPING OVER THE UPPER MIDWEST.  
 

 
   
AVIATION
 
(FOR THE 12Z TAFS THROUGH 12Z WEDNESDAY MORNING)  
ISSUED AT 542 AM CDT TUE OCT 27 2020  
 
VFR THROUGH THE PERIOD. CLOUDS WILL INCREASE ACROSS CENTRAL MN THIS  
AFTERNOON, BUT DRY CONDITIONS ARE EXPECTED. SOUTH SOUTHWEST WINDS  
WILL BECOME A BIT GUSTY THIS AFTERNOON.  
 
KMSP...NO CONCERNS.  
 
/OUTLOOK FOR KMSP/  
WED...VFR. WIND WSW 10 KTS.  
THU...VFR WITH MVFR CEILINGS POSSIBLE. WIND N AT 10-15 KTS.  
FRI...VFR. WIND S AT 10-15 KTS.  
 

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

 
 

 
 
SHORT TERM...BORGHOFF  
LONG TERM...BPH  
AVIATION...BORGHOFF  
 
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