000 
FLUS43 KFSD 211606
HWOFSD
SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-IAZ001>003-
012>014-020>022-031-032-NEZ013-014-221200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1101 AM CDT SAT JUN 21 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS...
SCATTERED SHOWERS AND A FEW THUNDERSTORMS WILL CROSS THE AREA
THROUGH MID TO LATE AFTERNOON.	ONLY BRIEF PERIODS OF LIGHT TO
MODERATE RAIN WILL OCCUR WITH THIS ACTIVITY AND SEVERE WEATHER IS
NOT EXPECTED THROUGH 5 PM.

THUNDERSTORMS ARE EXPECTED TO REDEVELOP EARLY THIS
EVENING...ALONG AND WEST OF THE JAMES RIVER VALLEY...INCLUDING
THE HURON...MITCHELL AND CHAMBERLAIN AREAS.  LARGE HAIL AND
ISOLATED TORNADOES WILL BE POSSIBLE WITH THE STRONGER STORMS.  

THIS ACTIVITY WILL SPREAD EAST OVER THE REMAINDER OF SOUTHEAST
SOUTH DAKOTA...INTO SOUTHWEST MINNESOTA AND NORTHWEST IOWA
OVERNIGHT.  THE THREAT OF SEVERE WEATHER SHOULD DIMINISH
OVERNIGHT AS THE STORMS MOVE EAST...HOWEVER LOCALLY HEAVY
RAINFALL WILL BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SCATTERED THUNDERSTORMS MAY LINGER OVER PARTS OF SOUTHWEST
MINNESOTA AND NORTHWEST IOWA INTO SUNDAY MORNING.  AFTER THIS
ACTIVITY DECREASES... AND AS TEMPERATURES CLIMB THROUGH THE
DAY...THUNDERSTORMS ARE AGAIN EXPECTED TO REDEVELOP BY LATE
SUNDAY AFTERNOON.  

EXACT TIMING AND LOCATION OF REDEVELOPMENT IS DIFFICULT TO
PINPOINT...AS IT WILL LARGELY DEPEND ON THE EXTENT OF
THUNDERSTORMS EARLIER IN THE DAY.  HOWEVER AT THIS TIME THERE
APPEARS TO BE A MODERATE RISK OF WIDESPREAD SEVERE WEATHER SUNDAY
AFTERNOON AND EVENING...ESPECIALLY OVER NORTHWEST IOWA AND
EXTREME NORTHEAST NEBRASKA...INTO PARTS OF SOUTHWEST MINNESOTA
AND SOUTHEAST SOUTH DAKOTA.  TORNADOES AND LARGE HAIL WILL BE
POSSIBLE SUNDAY AFTERNOON AND EVENING...WITH THE PRIMARY SEVERE
WEATHER THREAT TRANSITIONING TO DAMAGING WINDS AND HEAVY RAIN
DURING THE OVERNIGHT HOURS.

THE THREAT FOR SEVERE WEATHER AND HEAVY RAIN WILL CONTINUE INTO
MONDAY AND MONDAY NIGHT...AS NUMEROUS LOW LEVEL BOUNDARIES
RESULTING FROM THE WEEKEND THUNDERSTORM ACTIVITY ARE EXPECTED TO
PERSIST OVER THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED ALONG AND WEST OF THE JAMES
RIVER THIS EVENING.

&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.CRH.NOAA.GOV/FSD. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.

$$
 HARMON