000 
FXUS63 KFSD 231541
AFDFSD

AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA 
NATIONAL WEATHER SERVICE SIOUX FALLS SD 
1041 AM CDT SUN JUN 23 2002

TROPICAL PLUME OF MOISTURE SET UP ACROSS CWA TODAY WITH VERY STEEP 
LAPSE RATES ABOVE 700 MB.  WILL UPDATE FORECAST TO INCLUDE SCATTERED 
SHOWERS/CHANCE ALL DAY IN MOST AREAS EXCEPT SOUTHEAST CWA.  THIS 
WILL KEEP TEMEPRATURES DOWN A BIT OVER NORTHERN CWA BUT NOT MUCH. 

COOL AIR ALOFT MOVING ACROSS CWA THIS EVENING SHOULD HELP TO SPARK 
THUNDERSTORMS WITH BOUNDARY ACROSS CENTRAL SOUTH DAKOTA INTO 
NORTHERN CWA.

.FSD...NONE

08