399 
FXUS63 KFSD 160712
AFDFSD

AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
111 AM CST SAT NOV 16 2002

...MAIN CHALLENGE WILL BE TEMPERATURES NEXT SEVERAL DAYS...

A VERY COLD HIGH PRESSURE CONTINUES TO REMAIN IN CONTROL ACROSS 
NORTHERN MINNESOTA LATE TONIGHT. LOW AND MID LEVEL MOISTURE 
CONTINUES ACROSS CWA THROUGH 01Z WITH HIGH CLOUDS MOVING INTO 
WESTERN HIGH PLAINS.

CLOUDS WILL PLAY A ROLE WITH TODAYS HIGH TEMPS...ESPECIALLY EASTERN 
CWA. WARM FRONT NOTED ON 11-3.9 SAT PIC OVER WESTERN ND INTO EXTREME 
NORTHERN SD. WILL SEE SOME WARMING OF LOW LEVEL TEMPS 
TODAY...ALLOWING TEMPS TO CLIMB INTO THE 40S FOR MOST LOCATIONS. A 
FEW 50S WILL BE POSSIBLE OVER WESTERN CWA WITH LESS CLOUDS AND 
FARTHER INTO THE WARM AIR. MIXING WILL ALSO BE WEAK SO DO NOT EXPECT 
ANY MAJOR REBOUND. WILL GO NEAR 40 FAR EAST AND LOW 50S FAR WEST.

GRADIENT INCREASES OVERNIGHT...BUT NOT UNTIL AFTER MIDNIGHT. THIS 
SHOULD ALLOW MOST AREAS TO FALL BACK INTO THE 20S AGAIN. WARMER AIR 
IN PLACE ON SUNDAY WITH BETTER MIXING SO 50S LOOK PRETTY GOOD FOR 
JUST ABOUT EVERYONE.

A WEAK COLD FRONT PASSES THROUGH SUNDAY...BUT ONLY MINOR COOLING 
BEHIND. THIS BOUNDARY ACTUALLY LOOKS LIKE IN SHOULD SERVE TO PROVIDE 
INCREASED MIXING POTENTIAL ON MONDAY...WHICH WOULD ALLOW HIGHS TO 
CLIMB INTO THE 50S AGAIN...EVEN THOUGH LOW LEVEL TEMPS A LITTLE 
COOLER. A FAVORABLE WEST TO NORTHWEST WIND IS ALSO FORECAST.   

SEE NO GREAT CHANCES FOR PRECIP NEXT SEVERAL DAYS...ALTHOUGH A 
DECENT UPPER LEVEL PV ANOMOLY PASSES THROUGH SUNDAY NIGHT AND 
MONDAY. LOOKS LIKE BETTER MID LEVEL BAROCLINICITY TO OUR SOUTH SO 
WILL NOT INTRODUCE ANY PRECIP.

.FSD...NONE

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