Alert archive / South Dakota / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 95, NWS Sioux Falls, SD

July 20, 1987Mellette County, Todd County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 20, 1987, 6:55 PM CDT for Mellette County, Todd County, South Dakota. It was in force for 65 min.

The area

The counties it named.

The facts

Issued: Jul 20, 1987, 6:55 PM CDT (23:55 UTC)
Expired: Jul 20, 1987, 8:00 PM CDT
In force: 65 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

Counties Mellette County, SD, Todd County, SD

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 20, 3:10 PM CDT, 3 hours 45 minutes before

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Special weather statement, Jul 20, 4:44 PM CDT, 2 hours 11 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
435 PM CDT MON JUL 20 1987

AT 430 PM CDT...SCATTERED THUNDERSTORMS...SOME INTENSE...CONTINUED
OVER PARTS OF NORTHEAST SOUTH DAKOTA.

THESE STORMS WERE MOSTLY NORTH OF A LINE FROM HURON TO MILBANK WITH
THE HEAVIEST STORMS LOCATED 10 MILES NORTHWEST OF CLARK...JUST NORTH
OF HITCHCOCK AND JUST SOUTH OF DOLAND.  A SIGNIFICANT INCREASE
IN INTENSITY WAS ALSO NOTED.

THESE STORMS ARE CAPABLE OF PRODUCING VERY HEAVY RAIN...HAIL...DANGEROUS
LIGHTNING AND STRONG GUSTY WINDS.  PERSONS IN SOUTHERN AND EASTERN
SPINK AND WESTERN AND NORTHERN CLARK COUNTIES SHOULD BE ALERT FOR
THREATENING WEATHER.

MOVEMENT WAS qNORTHEAST AT 35 MILES AN HOUR.
PFEIFFER

Special weather statement, Jul 20, 5:44 PM CDT, 1 hour 11 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
535 PM CDT MON JUL 20 1987

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN CLARK
   COUNTY UNTIL 615 PM CDT...

AT 530 PM CDT...AN ISOLATED SEVERE THUNDERSTORM CONTINUED OVER NORTHERN
CLARK COUNTY OF NORTHEAST SOUTH DAKOTA.

THE HEAVIEST PART OF THIS STORM WAS LOCATED JUST NORTH OF CLARK.
LARGE HAIL...DAMAGING THUNDERSTORM WINDS AND VERY HEAVY 1RAINS CAN BE
EXPECTED WITH THIS STORM.

MOVEMENT WAS NORTHEAST AT 5 MILES AN HOUR.
PFEIFFER

Special weather statement, Jul 20, 6:47 PM CDT, 8 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
635 PM CDT MON JUL 20 1987

AT 630 PM CDT...SCATTERED INTENSE THUNDERSTORMS CONTINUED OVER PARTS
OF NORTHEAST...EAST CENTRAL AND SOUTH CENTRAL SOUTH DAKOTA.

THESE STORMS WERE MOSTLY WITHIN A 50 MILE WIDE BAND BETWEEN WILMOT
AND THE NEBRASKA BORDER...SOUTHWEST OF MISSION.  THE HEAVIEST STORMS
WERE LOCATED 10 MILES NORTHWEST OF WATERTOWN...JUST NORTH OF BRISTOL
...5 MILES SOUTHEAST OF CONDE...JUST WEST OF DOLAND...10 MILES
NORTHEAST OF FORT THOMPSON AND 10 MILES SOUTHEAST OF PRESHO.

THESE STORMS ARE CAPABLE OF PRODUCING VERY HEAVY RAIN...HAIL AND
DANGEROUS LIGHTNING.  PERSONS IN THE NORTHEAST...EAST CENTRyAL AND SOUTH
CENTRAL PARTS OF SOUTH DAKOTA SHOULD BE ON THE ALERT FOR THREATENING
WEATHER.

MOVEMENT WAS NORTHEAST AT 15 MILES AN HOUR.
PFEIFFER

Nearby

Severe Thunderstorm Warnings in South Dakota, 1987 Every severe thunderstorm warning in 1987

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.