000 
NZUS43 KFSD 111803
RWSFSD

REGIONAL WEATHER SYNOPSIS
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1155 AM CST WED DEC 11 2002

COOL MOIST AIR TRAPPED IN THE LOW LEVELS OF THE ATMOSPHERE...WILL 
KEEP LOW CLOUDS AND FOG IN PLACE OVER IOWA...EASTERN NEBRASKA AND 
MINNESOTA FOR MUCH OF THE DAY.  AS A WEAK TROUGH OF LOW PRESSURE 
MOVES ACROSS THE DAKOTAS TODAY AND TONIGHT...DRIER AIR WILL HELP 
SHIFT THIS FOG SLOWLY TO THE EAST.  TEMPERATURES WILL REMAIN NEAR OR 
ABOVE NORMAL TODAY...WITH HIGHS RANGING FROM THE 30S AND LOWER 40S 
UNDER THE CLOUD COVER IN THE EAST...TO THE 50S ACROSS THE WESTERN 
HIGH PLAINS.  DRY CONDITIONS WILL CONTINUE OVER MOST OF THE REGION 
INTO TONIGHT...ALTHOUGH SOME DRIZZLE OR FREEZING DRIZZLE IS POSSIBLE 
IN EASTERN AREAS WHERE THE LOW LEVEL MOISTURE WILL PERSIST.  LOWS IN 
THE 20S TO LOWER 30S WILL BE COMMON THROUGHOUT THE NORTHERN PLAINS 
OVERNIGHT. 

AN UPPER LEVEL TROUGH WILL BRING A CHANCE OF LIGHT RAIN OR LIGHT 
SNOW TO THE SOUTHERN PARTS OF THE REGION ON THURSDAY...WHILE DRY 
CONDITIONS CONTINUE ACROSS THE NORTH.  HIGHS ON THURSDAY WILL RANGE 
FROM THE LOWER 30S IN PARTS OF NORTH DAKOTA AND MINNESOTA...TO THE 
MID 40S IN THE SOUTHERN SECTIONS OF NEBRASKA AND IOWA. 

$$