Severe Thunderstorm Warning 97, NWS Sioux Falls, SD

STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
125 PM CDT FRI JUL 11 1986

TIME              LOCATION                         EVENT

EVENING OF        WESTERN AND SOUTHERN MOODY       MARBLE TO GOLF BALL
JULY 10 1986      COUNTY..AN AREA 20 TO 35 MILES   SIZE HAIL DURING
                  NORTH OF SIOUX FALLS             LIFETIME OF STORM.
                                                   ..PUBLIC AND TROOPER
                                                   REPORTS

EVENING OF        SOUTHWESTERN MOODY COUNTY        CROP DAMAGE.
JULY 10 1986      AROUND I29/HWY 34 INTERSECTION   WATER OVER HWY 34
                  ..24 MILES NORTH OF SIOUX FALLS  UNTIL FRI MORNING

EVENING OF        EGAN SD IN MOODY COUNTY..ABOUT  4.50 INCHES OF RAIN
JULY 10 1986      26 MILES NORTH OF SIOUX FALLS   AND HAIL IN ROADSIDE
                                                  DITCHES UNTIL FRI
                                             .     MORNING
KAPELA

TTAA0  KHON 112045

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
335 PM CDT FRI JUL 11 1986

AT 330 PM CDT...SCATTERED VERY HEAVY THUNDERSTORMS CONTINUED OVER
PARTS OF NORTHEAST AND CENTRAL SOUTH DAKOTA AND SOUTHEAST NORTH DAKOTA.

THESE STORMS WERE MOSTLY NORTHWEST OF A LINE FROM PLATTE TO MILBANK WITH
THE HEAVIEST STORMS LOCATED JUST NORTHWEST OF WATERTOWN...JUST NORTHWEST
OF ELROD...10 MILES NORTH OF LEOLA AND JUST NORTHEAST OF SENECA.

THESE STORMS ARE CAPABLE OF PRODUCING VERY HEAVY RAIN...SMALL HAIL AND
GUSTY SURFACE WIND.  PERSONS IN THE LAKE KAMPESKA...PELICAN LAKE AND
WATERTOWN AREAS AND ALSO PERSONS IN CENTRAL CLARK AND NORTHERN HAMLIN
COUNTIES SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS
AS THESE STORMS MOVE INTO THESE AREAS.

MOVEMENT WAS EAST AT 15 MILES AN HOUR.
PFEIFFER

KHON 112238

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
530 PM CDT FRI JUL 11 1986

AT 530 PM CDT...INTENSE THUNDERSTORMS WERE MOVING ACROSS SOUTHERN DEUEL
AND NORTHERN BROOKINGS COUNTIES IN EAST CENTRAL SOUTH DAKOTA.

THESE THUNDERSTORMS...WHICH WERE LOCATED 15 TO 20 MILES NORTH OF
BROOKINGS...WERE PRODUCING RAINFALLS OF ONE HALF TO THREE QUARTER
INCHES...PEA TO MARBLE SIZED HAIL...AND WINDS OF 40 TO 50 MILES PER
HOUR.

OTHERWISE...SCATTERED THUNDERSTORMS CONTINUED OVER MUCH OF EASTERN
SOUTH DAKOTA...AND SOUTHEAST NORTH DAKOTA.

IN SOUTH DAKOTA...THE THUNDERSTORMS WERE MOSTLY EAST OF THE JAMES RIVER
...AND NORTH OF A LINE FROM MITCHELL TO SIOUX FAL[LS.

ALL MOVEMENT WAS EAST AT 25 MILES AN HOUR.

STORM REPORT
NATIONAL WEATHER SERVICE SIOUX CITY IA
600 PM CDT FRI JUL 11 1986

TIME         EVENT

1100 TO     WIND SPEEDS BETWEEN 50 AND 60 MPH OBSERVED 5 MILES WEST
1115 PM     OF BEREFORD...IN THE NORTHWEST CORNER OF UNION COUNTY
            SOUTH DAKOTA.  WIND REPORT RECEIVED FROM BERESFORD CIVIL
            DEFENSE DIRECTOR.
1120 PM     35 MILES NORTH OF SIOUX CITY...BETWEEN THE VERMILLION AND
            AKRON EXITS ON I-29...STRONG WINDS ALMOST CAUSED A
            VOLUNTEER SPOTTER TO ALMOST LOSE CONTROL OF HIS CAR.
            WIND SPEED ESTIMATED TO BE OVER 50 MPH.
1120 PM     UNION COUNTY EMPLOYEE REPORTED POSSIBLE FUNNEL CLOUD
            SIGHTINGS ABOUT 30 MILES NORTH OF SIOU+X CITY...NEAR THE
            VERMILLION EXIT FROM I-29
ALL EVENTS OCCURRED THURSDAY NIGHT...JULY 10TH.
ALL TIMES GIVEN IN CENTRAL DAYLIGHT TIME.
SHERLIN