Alert archive / Minnesota / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 72, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 28, 1986, 3:51 AM CDT for Pipestone County, Rock County, Minnesota. It was in force for 69 min.
The area
The counties it named.
The facts
- Issued
- Jun 28, 1986, 3:51 AM CDT (08:51 UTC)
- Expired
- Jun 28, 1986, 5:00 AM CDT
- In force
- 69 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 00:00Z, 8.9 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
- 605 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 1762 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 263 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 280858 COR SVRFSD SDC079-099-101-MNC117-133-281000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 351 AM CDT SAT JUN 28 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 500 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF EAST CENTRAL SOUTH DAKOTA...EASTERN LAKE...NORTHERN MINNEHAHA AND MOODY SOUTHWEST MINNESOTA...PIPESTONE AND NORTHERN ROCK SOME OF THE CITIES INCLUDED IN THE WARNING ARE MADISON..WENTWORTH.. FLANDREAU..DELL RAPIDS..AND GARRETSON IN SOUTHEAST SOUTH DAKOTA. IN SOUTHWEST MINNESOTA PIPESONE AND HARDWICK ARE INCLUDED. AT 345 AM CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS 7 MILES NORTH AND 5 MILES EAST OF MADISON TO 5 MILES EAST OF FLANDREAU SOUTH DAKOTA..OR APPROXMIATELY 30 MILES NORTH OF SIOUX FALLS SD.. MOVING SOUTHEAST 40 MPH. IF YOU ARE IN THE PATH OF THIS STORM..YOU SHOULD GET TO A REINFORCED SHEL TER. A SEVERE THUNDERSTORM PRODUCES DAMAGING 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. UMLAND CORRECTED TIME OF RADAR OBSERVATION.
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, Jun 27, 11:49 PM CDT, 4 hours 2 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 1145 PM CDT FRI JUN 27 1986 ...SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN AND CENTRAL SOUTH DAKOTA...AND SOUTHERN NORTH DAKOTA...UNTIL 400 AM CDT SATURDAY JUNE 28.. AT 1130 PM CDT...THERE WERE INTENSE THUNDERSTORMS WITH VERY HEAVY RAIN IN NORTHCENTRAL AND NORTHEASTERN SOUTH DAKOTA. THE STRONGEST STORMS WERE 15 MILES EAST OF MOBRIDGE...AND 40 MILES NORTHWEST OF ABERDEEN. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING HAIL AND STRONG WINDS. MOVEMENT WAS SOUTHEAST AT 45 MILES AN HOUR. THERE WERE ALSO SCATTERED SHOWERS AND THUNDERSHOWERS IN NORTHEASTERN SOUTH DAKOTA. THE SHOWERS WERE IN A A 40 MILE WMIDE AREA EXTENDING FROM BROOKINGS TO 40 MILES NORTHEAST OF ABERDEEN. MOVEMENT WAS EAST AT 35 MILES AN HOUR. KRAUSE/ORGISH
Special weather statement, Jun 28, 12:43 AM CDT, 3 hours 8 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 1235 AM CDT SAT JUN 28 1986 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL SOUTH DAKOTA UNTIL 400 AM CDT... AT 1230 AM CDT...SCATTERED INTENSE THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUED OVER PARTS OF NORTHEAST SOUTH DAKOTA. THESE STORMS WERE MOSTLY NORTHEAST OF A LINE FROM BROOKINGS TO ROSCOE WITH THE HEAVIEST STORMS LOCATED 10 MILES SOUTHWEST OF ABERDEEN AND 5 MILES SOUTH OF CLEAR LAKE. MOVEMENT WAS SOUTHEAST AT 35 MILES AN HOUR. ELSEWHERE...WIDELY SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED OVER PARTS OF SOUTHEAST AND SOUTH CENTRAL SOUTH DAKOTA. MOVEMENT WAS SOUTHrEAST AT 30 MILES AN HOUR. PFEIFFER
Special weather statement, Jun 28, 1:49 AM CDT, 2 hours 2 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 145 AM CDT SAT JUN 28 1986 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL SOUTH DAKOTA UNTIL 400 AM CDT... AT 135 AM CDT...SCATTERED INTENSE THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUED OVER PARTS OF NORTHEASTERN SOUTH DAKOTA. SCATTERED INTENSE THUNDERSTORMS WITH VERY HEAVY RAIN HAD DEVELOPED IN EXTREME SOUTHWESTERN MINNESOTA. IN SOUTH DAKOTA..THE STRONGEST THUNDERSTORM WAS 35 MILES NORTHWEST OF WATERTOWN..NEAR BRADLEY. IN MINNESOTA..THE STRONGEST THUNDERSTORMS WERE BETWEEN PIPESTONE AND WORTHINGTON. OTHERWISE..SCATTERED THUNDERSTORMS WERE OCCURING NORTH AND EAST OF A LINE FROM ABERDEEN TO SIOUX FALLS. ELSEWHERE..NUMEROUS THUNDERSTORMS..SOME WITH HEAVY RAIN.. WERE OCCURING IN CENTRAL SOUTH DAKOTA. THESE THUNDERSTORMS WERE IN A 75 MILE WIDE AREA FROM 40 MILES WEST OF PIERRE TO 30 MILES SOUTHEAST OF WINNER. ALL MOVEMENT WAS EAST AT 40 MILES AN HOUR. KRAUSE/PFEIFFER
Special weather statement, Jun 28, 2:51 AM CDT, 1 hour before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 250 AM CDT SAT JUN 28 1986 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL SOUTH DAKOTA UNTIL 400 AM CDT... AT 235 AM CDT...AN INTENSE THUNDERSTORM WITH VERY HEAVY RAIN CONTINUED IN EAST CENTRAL SOUTH DAKOTA. THIS STORM WAS 20 MILES SOUTH OF WATERTOWN. IT IS CAPABLE OF PRODUCING HAIL..STRONG GUSTY WINDS..AND VERY HEAVY RAINS. OTHERWISE..AN INTENSE THUNDERSTORM WITH VERY HEAVY RAIN WAS ALSO IN EXTREME SOUTHEASTERN NORTH DAKOTA. THIS STORM WAS 20 MILES NORTHWEST OF FORBES..OR 50 MILES NORTHWEST OF ABERDEEN. IT WILL MOVE INTO NORTHERN BROWN COUNTY BY 330 AM CDT. ALSO..THUNDERSTORMS WITH VERY HEAVY RAIN WERE IN SOUTH CENTRAL SOUTH DAKOTA. THE STRONGEST STORMS WERE ALONG INTERSTATE 90.. FROM CHAMBERLAIN TO MURDO. ALSO..SCATTERED THUNDERSTORMS WITH HEAVY RAIN ALSO EXTENDED INTO SOUTHWESTERN MINNESOTA AND EXTREME NORTHWESTERN IOWA. ALL MOVEMENT WAS SOUTHEAST AT 40 MILES AN HOUR. KRAUSE/PFEIFFER
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 4:45 AM CDT | Severe Thunderstorm Warning | FSD | Jackson, Nobles | 60 min |
| Jun 28, 4:45 AM CDT | Severe Thunderstorm Warning | FSD | Rock | 60 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1986Every severe thunderstorm warning in 1986
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.