Alert archive / South Dakota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 102, NWS Sioux Falls, SD

June 24, 1998Kingsbury County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 24, 1998, 9:30 PM CDT for Kingsbury County, South Dakota. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 24, 1998, 9:30 PM CDT (02:30 UTC)
Expired: Jun 24, 1998, 10:15 PM CDT
In force: 45 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Kingsbury County, SD

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 2.5 hours before the alert went out and 93 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 6538 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 857 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 5.5

Open this sounding in Storm Lab

The text

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

268 
WUUS1 KFSD 250231 RRA
SVRFSD
SDC077-250315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
930 PM CDT WED JUN 24 1998

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN KINGSBURY COUNTY IN EAST CENTRAL SOUTH DAKOTA

* UNTIL 1015 PM CDT

* AT 928 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 25 MILES EAST OF HURON  OR 4 MILES SOUTH OF
  MANCHESTER  MOVING NORTH AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MANCHESTER               AROUND 935 PM CDT
  IROQUOIS                 AROUND 935 PM CDT
  DE SMET                  AROUND 940 PM CDT
  BANCROFT                 AROUND 945 PM CDT

A TORNADO WATCH IS ALSO IN EFFECT.  SEVERE THUNDERSTORMS CAN AND
OCCASIONALLY DO PRODUCE TORNADOES.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED UNLESS IN AN
EMERGENCY.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 HAMEN

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.

NWS Sioux Falls, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 24, 9:05 PM CDT, 25 minutes earlier.

Area forecast discussion, Jun 24, 9:05 PM CDT, 25 minutes before

AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
905 PM CDT WED JUN 24 1998

DUE TO SVR WX IN THE CWA ATTM...WL NOT BE WORRYING ABOUT UPDTG ZFP. TOR
AND SVR WATCHES STILL IN EFFECT. WL BE UPDATING LATER TO CLEAR THE
WATCHES AS CONDITIONS WARRANT.

.FSD...NONE
GILLISPIE

In the hours before

Local storm report, Jun 24, 3:31 PM CDT, 5 hours 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SOUTH DAKOTA
331 PM CDT WED JUN 24 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0910 PM    3 SE ANTHON               IA   60 MPH TSTM GUST
06/23/98   WOODBURY                       TREE DAMAGE

Local storm report, Jun 24, 8:41 PM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SOUTH DAKOTA
841 PM CDT WED JUN 24 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0813 PM    WHITE LAKE                SD   1 INCH HAIL
06/24/98   AURORA

0820 PM    WHITE LAKE                SD   1 INCH HAIL
06/24/98   AURORA

0825 PM    5 SE DELMONT              SD   60 MPH TSTM GUST
06/24/98   HUTCHINSON                     OCCURRED IN SOUTHWEST PART
                                          OF COUNTY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 7:02 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	48 min
Jun 24, 7:50 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix	35 min
Jun 24, 8:16 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Jerauld	34 min
Jun 24, 8:17 PM CDT	Tornado Warning	FSD	Bon Homme	33 min
Jun 24, 8:20 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson	35 min
Jun 24, 8:47 PM CDT	Severe Thunderstorm Warning	FSD	McCook	33 min
Jun 24, 8:54 PM CDT	Severe Thunderstorm Warning	FSD	Sanborn	31 min
Jun 24, 9:16 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	34 min
Jun 24, 9:35 PM CDT	Severe Thunderstorm Warning	FSD	Minnehaha	35 min
Jun 24, 9:38 PM CDT	Severe Thunderstorm Warning	FSD	Moody	32 min
Jun 24, 9:44 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	31 min
Jun 24, 9:50 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	35 min
Jun 24, 10:15 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	45 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1998 Every severe thunderstorm warning in 1998

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.