Alert archive / Minnesota / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 22, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 28, 1987, 4:29 PM CDT for Pipestone County, Rock County, Minnesota. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- Jun 28, 1987, 4:29 PM CDT (21:29 UTC)
- Expired
- Jun 28, 1987, 5:30 PM CDT
- In force
- 61 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Pipestone County, MN, Rock County, MN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Aberdeen, SD (KHON), launched 12:00Z, 9.5 hours before the alert went out and 207 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 487 J/kg
- Mixed-layer CIN
- -222 J/kg
- Mixed-layer LCL
- 1671 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KFSD 282129
SVRFSD
MNC117-133-282230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
429 PM CDT SUN JUN 28 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTHWEST MINNESOTA
...PIPESTONE...NORTHERN ROCK
SOME CITIES INCLUDED IN THIS WARNING ARE HARDWICK AND TROSKY
MINNESOTA.
AT 429 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 25 MILES
NORTHEAST OF SIOUX FALLS SOUTH DAKOTA NEAR IHLEN MINNESOTA MOVING
EAST-SOUTHEAST AT 20 MPH.
IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD GET TO A
REINFORCED SHELTER. A SEVERE THUNFDERSTORM PRODUCES WINDS IN EXCESS
OF 60 MPH...HAIL 3/4 INCH OR LARGER...DEADLY LIGHTNING...AND HEAVY
RAIN THAT CAN QUICKLY FLOOD A LOW LYING AREA.
JANSENWhat 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, Jun 28, 1:51 PM CDT, 2 hours 38 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 145 PM CDT SUN JUN 28 1987 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF CENTRAL AND EASTERN SOUTH DAKOTA... AT 140 PM CDT...WIDELY SCATTERED THUNDERSTORMS WITH RAIN WERE OCCURRING OVER OARTS OF EATERN SOUTH DAKOTA. THE STRONGEST THUNDERSTORM WAS LOCATED OVER NORTHEAST BEADLE COUNTY. OTHERWISE MOST OF THE THUNDERSTORMS WERE LOCATED NORTH OF A PIERRE/+HURON/WATERTOWN LINE. MOVEMENT WAS SOUTHEAST AND AT 35 MILES AN HOUR. MILLER
Special weather statement, Jun 28, 1:54 PM CDT, 2 hours 35 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 145 PM CDT SUN JUN 28 1987 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF CENTRAL AND EASTERN SOUTH DAKOTA UNTIL 9 PM CDT... AT 140 PM CDT...WIDELY SCATTERED THUNDERSTORMS WITH RAIN WERE OCCURRING OVER PARTS OF EASTERN SOUTH DAKOTA. THE STRONGEST THUNDERSTORM WAS LOCATED OVER NORTHEAST BEADLE COUNTY. OTHERWISE MOST OF THE THUNDERSTORMS WERE LOCATED NOR.TH OF A PIERRE/HURON/WATERTOWN LINE. MOVEMENT WAS SOUTHEAST AND AT 35 MILES AN HOUR. MILLER
Special weather statement, Jun 28, 2:42 PM CDT, 1 hour 47 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 240 PM CDT SUN JUN 28 1987 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF CENTRAL AND EASTERN SOUTH DAKOTA UNTIL 9 PM CDT... AT 230 PM CDT...THERE WERE WIDELY SCATTERED THUNDERSTORMS ACROSS EASTERN SOUTH DAKOTA. THERE WERE ISOLATED INTENSE THUNDERSTORMS WITH VERY HEAVY RAIN. THE STRONGEST THUNDERSTORMS WERE IN A 25 MILE WIDE AREA EXTENDING FROM 40 cMILES SOUTHEAST OF PIERRE TO 55 MILES NORTHWEST OF HURON. ANOTHER INTENSE THUNDERSTORM WAS 25 MILES SOUTHWEST OF WATERTOWN. MOVEMENT WAS SOUTHEAST AT 35 MILES AN HOUR. ORGISH
Special weather statement, Jun 28, 3:02 PM CDT, 1 hour 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 300 PM CDT SUN JUN 28 1987 AT 3 PM CDT...THUNDERSTORMS...SOME OF THEM INTENSE WITH HEAVY RAIN WERE OCCURRING OVER PARTS OF EASTERN SOUTH DAKOTA AND SOUTHWEST MINNESOTA. THE THUNDERSTORMS EXTENDED NORTH OF A LINE FROM ABOUT 40 MILES NORTHWEST OF SIOUX FALLS...NEAR CANOVA SOUTH DAKOTA...NORTH/ EAST TO ABOUT 100 MILES NORTHEAST OF SIOUX FALLS...NEAR REDWOOD FALLS MINNESOTA. t THE HEAVIEST RAIN WAS OCCURRING ABOUT 80 MILES NORTH OF SIOUX FALLS... JUST SOUTH OF WATERTOWN SOUTH DAKOTA. THESE THUNDERSTORMS WERE MOVING EAST/SOUTHEAST AT ABOUT 30 MILES AN HOUR. GOLDEN
Special weather statement, Jun 28, 4:01 PM CDT, 28 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 400 PM CDT SUN JUN 28 1987 AT 4 PM CDT...THUNDERSTORMS...SOME OF THEM INTENSE WITH HEAVY RAIN WERE OCCURRING OVER PARTS OF EASTERN SOUTH DAKOTA AND SOUTHWEST MINNESOTA. THE THUNDERSTORMS EXTENDED NORTH OF A LINE FROM ABOUT 90 MILES SOUTHWEST OF SIOUX FALLS...NEAR PICKSTOWN SOUTH DAKOTA... NORTHEAST TO ABOUT 100 MILES NORTHEAST OF SIOUX FALLS...JUST SOUTH OF REDWOOD FAL*LS MINNESOTA. THE HEAVIEST RAIN WAS OCCURRING ABOUT 20 MILES NORTHWEST OF SIOUX FALLS...NEAR MADISON SOUTH DAKOTA. THESE THUNDERSTORMS WERE MOVING EAST/SOUTHEAST AT ABOUT 30 MILES AN HOUR. GOLDEN
Special weather statement, Jun 28, 4:27 PM CDT, 2 minutes before
KFSD 282124 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 425 PM CDT SUN JUN 28 1987 ...SEVERE THUNDERSTORM WARNING UNTIL 5 PM CDT FOR EASTERN AURORA AND ALL OF DAVISON COUNTY OF SOUTH DAKOTA... ...SEVERE THUNDERSTORM WATCH UNTIL 9 PM CDT FOR A LARGE PART OF EASTERN SOUTH DAKOTA... AT 420 PM CDT RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS FROM 20 MILES NORTHWEST OF MITCHELL TO NEAR STICKNEY SOUTH DAKOTA MOVING EAST AT 25 MPH. LARGE HAIL...DAMAGING WINDS...AND HEAVY RAINS ARE LIKELY WITH THESE STORMS AS THEY MOVE ACROSS EASTERN AURORA AND DAVISON COUNTIES. IN ADDITION...RADAR INDICATED AN INTENSE THUNDERSTORMS 100 MILES WEST-NORTHWEST OF YANKTON SOUTH DAKOTA NEAR DIXON MOVING SOUTHEAST AT 20 MPH. < < PERSONS ACROSS EASTER SOUTH DAKOTA...NORTHWEST IOWA AND SOUTHWEST MINNESOTA SHOULD KEEP ABREAST OF THE LATEST WEATHER SITUATION AND BE PREPARED TO GO TO A SAFE PLACE IF A WARNING IS ISSUED. JANSECN
Nearby
Severe Thunderstorm Warnings in Minnesota, 1987Every 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; the sounding from the Mesonet's radiosonde archive.