Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 69, NWS Aberdeen, SD

June 27, 1990Corson County, Dewey County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 27, 1990, 8:45 PM MDT for Corson County, Dewey County, South Dakota. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jun 27, 1990, 8:45 PM MDT (02:45 UTC)
Expired
Jun 27, 1990, 9:45 PM MDT
In force
60 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

Counties Corson County, SD, Dewey County, SD

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

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.8 hours before the alert went out and 151 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.

Skew-T log-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 1990-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2719 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 1990-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 141 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2719 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
1016 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
141 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.9
Supercell composite
11.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KABR 280245
SVRABR
SDC031-041-280345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE ABERDEEN SD
845 PM MDT WED JUN 27 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 945 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTH CENTRAL PART OF SOUTH DAKOTA
      WESTERN CORSON...WESTERN DEWEY

SOME OF THE CITIES INCLUDED IN THIS WARNING ARE FIRESTEEL...ISABEL

AT 845 PM MDT  RADAR INDICATED A SEVERE THUNDERSTORM IN SOUTHWEST
CORSON COUNTY...70 MILES WEST OF MOBRIDGE. AND ANOTHER NEAR
FIRESTEEL...40 MILES WEST OF MOBRIDGE. BOTH ARE MOVING NORTHEAST
AT 35 MPH.

IF YOU ARE IN THE PATH OF THIS STORM..YOU SHOULD GET TO A REINFORCED
SHELTER. 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.

THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TPORNADO WITH LITTLE OR
NO ADVANCE WARNING SO BE ON THE LOOKOUT.

KEEFE

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

Local storm report, Jun 27, 5:23 PM MDT, 3 hours 22 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
620 PM CDT WED JUN 27 1990

STORM DATA FOR WED JUN 27 1990

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

 416 PM CDT     BROWN...12 W WARNER        60 MPH WIND.
 425 PM CDT     BROWN...12 W WARNER        75 MPH WIND ZERO VSBY.
 433 PM CDT     BROWN...5 W ABERDEEN       65 MPH WIND 1/2 INCH HAIL
 440 PM CDT     BROWN...ABERDEEN           3/4 INCH HAIL...WYLIE PARK.
 450 PM CDT     BROWN...5 S ABERDEEN       60 MPH WIND
 453 PM CDT     BROWN...ABERDEEN           61 MPH AT THE AIRPORT
 500 PM CDT     BROWN...6 E MANSFIELD      3/4 INCH HAIL.
 5150 PM CDT     BROWN...5 S 2 W GROTON     REPORTED TORNADO ON GROUND
 557 PM CDT     SPINK...CONDE              60 MPH WIND

 KEEFE
Local storm report, Jun 27, 6:50 PM MDT, 1 hour 55 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
750 PM CDT WED JUN 27 1990

STORM DATA FOR WED JUN 27 1990

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

 640 PM CDT     SPINK...REDFIELD           1 INCH HAIL  .80 RAIN.

 KEEFE

The office that day

Everything else NWS Aberdeen, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 27, 6:20 PM MDTSevere Thunderstorm WarningABRKingsbury55 min
Jun 27, 6:54 PM MDTSevere Thunderstorm WarningABRBeadle, Miner, Sanborn66 min
Jun 27, 8:36 PM MDTSevere Thunderstorm WarningABRKingsbury39 min
Jun 28, 4:00 AM MDTSevere Thunderstorm WarningABRBeadle60 min
Jun 28, 4:26 AM MDTTornado WarningABRHand, Hyde34 min
Jun 28, 4:58 AM MDTSevere Thunderstorm WarningABRBeadle62 min
Jun 28, 5:48 AM MDTSevere Thunderstorm WarningABRClark, Hamlin, Kingsbury57 min
Jun 28, 6:36 AM MDTSevere Thunderstorm WarningABRDewey, Potter54 min
Jun 28, 7:18 AM MDTSevere Thunderstorm WarningABRFaulk, Potter34 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1990Every severe thunderstorm warning in 1990

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.