Alert archive / South Dakota / Tornado Warnings in 1998

Tornado Warning 38, NWS Sioux Falls, SD

June 24, 1998Bon Homme County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 24, 1998, 8:17 PM CDT for Bon Homme County, South Dakota. It was in force for 33 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, 8:17 PM CDT (01:17 UTC)
Expired: Jun 24, 1998, 8:50 PM CDT
In force: 33 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Bon Homme County, SD

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 24, 6:30 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.3 hours before the alert went out and 217 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.

796 
WFUS1 KFSD 250118 RRA
TORFSD
SDC009-250150-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
817 PM CDT WED JUN 24 1998

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  BON HOMME COUNTY IN SOUTHEASTERN SOUTH DAKOTA

* UNTIL 850 PM CDT

* AT 816 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A DEVELOPING TORNADO 35 MILES WEST OF YANKTON  OR 12 MILES
  SOUTHWEST OF SPRINGFIELD MOVING NORTHEAST AT 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  PERKINS                  AROUND 830 PM CDT
  SPRINGFIELD              AROUND 835 PM CDT
  KINGSBURG                AROUND 840 PM CDT



IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IN A HOME OR
BUSINESS IS AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE.  AVOID
WINDOWS.

HAMEN

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, 8:20 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, 9:30 PM CDT	Severe Thunderstorm Warning	FSD	Kingsbury	45 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

Tornado Warnings in South Dakota, 1998 Every tornado warning in 1998 Tornadoes 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.