Severe Thunderstorm Warning 50, NWS Sioux Falls, SD

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
1140 PM CDT SUN AUG 21 1988

AT 1130 PM CDT...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED ACROSS
SOUTHEAST SOUTH DAKOTA...SOUTHWEST MINNESOTA AND NORTHWEST IOWA.
THE SHOWERS AND THUNDERSTORMS OVER SOUTH DAKOTA WERE SOUTH AND EAST
OF A LINE FROM BROOKINGS TO MITCHELL TO YANKTON.

MOVEMENT WAS EAST AT 30 MILES AN HOUR.

RAINFALL AMOUNTS OVER PARTS OF SOUTHEAST SOUTH DAKOTA HAVE VARIED FROM
1 TO 3 INCHES OVER THE LAST SEVERAL HOURS AND HAVE CAUSED SOME STREET
FLOODING IN THE SIOUX FALLS AREA.

ADDITIONAL ROUNDS OF SHOWERS AND THUNDERSTORMS...WITH HEAVY RAIN...ARE
LIKELY LATER TONIGHT OVER SOUTHEAST SOUTH DAKO6TA...NORTHWEST IOWA...AND
SOUTHWEST MINNESOTA.

FLOODING OF STREETS AND ROADSIDE DITCHES IS LIKELY LATER TONIGHT...
ALONG WITH DANGEROUS LIGHTNING AND PEA SIZE HAIL.
STOREY

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX CITY IA
1145 PM CDT SUN AUG 21 1988

 ...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN MOVING THROUGH SOUTHEAST
SOUTH DAKOTA AND NORTHWEST IOWA...

AT 1140 PM CDT A 30 MILE WIDE BAND OF STRONG THUNDERSTORMS WITH VERY
HEAVY RAIN WAS LOCATED NORTH OF A LINE FROM NEAR BERESFORD SOUTH
DAKOTA IN NORTHWEST UNION COUNTY...ABOUT 44 MILES NORTHWEST OF SIOUX
CITY TO ABOUT 30 MILES NORTH OF SIOUX CITY NEAR HAWARDEN IOWA TO
CHEROKEE IOWA WHICH IS ABOUT 45 MILES NORTHEAST OF SIOUX CITY.

THESE THUNDERSTORMS WERE MOVING EAST AT 25 MPH AND WERE PASSING OVER
AREAS THAT ALREADY RECIEVED HEAVY RAIN TONIGHT.

FLOODING OF STREETS AND ROADSIDE DITC,HES IS LIKELY WITH THESE STORMS
AS WELL AS DANGEROUS LIGHTNING AND WIND GUSTS UP TO 40 MPH.

PHILLIPS

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
1240 AM CDT MON AUG 22 1988

AT 1230 AM CDT...NUMEROUS INTENSE THUNDERSTORMS...WITH VERY HEAVY RAIN
...CONTINUED OVER MUCH OF SOUTHEAST SOUTH DAKOTA...NORTHWEST IOWA...
NORTHEAST NEBRASKA AND SOUTHWEST MINNESOTA.

THESE STORMS WERE MOSTLY SOUTH OF A LINE FROM FLANDREAU TO BONESTEEL
WITH A THE HEAVIEST STORMS LOCATED 5 MILES SOUTH OF ALCESTER...25 MILES
NORTHEAST OF SIOUX CITY IOWA...10 MILES SOUTH OF YANKTON...10 MILES
NORTHWEST OF AVON AND JUST SOUTHWEST OF BRIDGEWATER.  A SLIGHT INCREASE
IN INTENSITY WAS NOTED.

PERSONS IN THE SOUTHEAST PARTS OF THE STATE SHOULD REMAIN ALERT AS THESE
STORMS ARE CAPABLE OF PRODUCING DANGEROUS LIGHTNING...VERY HEAVY RAIN
AND HAIL.

MOVEMENT WAS EAST AT 30 MILES AN HOUR.
PFEIFFER

STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1250 AM CDT MON AUG 22 1988

STORM DATA FOR SUNDAY AUG 22 1988

 TIME            COUNTY..LOCATION           CHARACTER OF STORM..DAMAGE
.......................................................................

 1130 PM CDT    YANKTON...AT MAYFIELD      GOLF BALL SIZE HAIL PUT DENTS
                                           INTO CARS.
KAPELA

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