Alert archive / South Dakota / Tornado Warnings in 1992

Tornado Warning 15, NWS Sioux Falls, SD

June 16, 1992Clay County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 16, 1992, 8:59 PM CDT for Clay County, South Dakota. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
Jun 16, 1992, 8:59 PM CDT (01:59 UTC)
Expired
Jun 16, 1992, 9:30 PM CDT
In force
31 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Clay County, SD

The nearest sounding before it

Omaha, NE (KOVN), launched 00:00Z, 2.0 hours before the alert went out and 184 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, Omaha, NE at 00:00Z on 1992-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4794 joules per kilogram.LCLEL10008507005003002001001 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, Omaha, NE at 00:00Z on 1992-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 square meters per square second.19395878Sfc1 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
4794 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1163 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
449 m²/s²
Significant tornado parameter
8.2
Supercell composite
39.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSD 170200
TORFSD
SDC027-170230-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
859 PM CDT TUE JUN 16 1992
 
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  930 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTHEAST SOUTH DAKOTA
 
   ...CLAY COUNTY
 
AT 855 PM A TORNADO WAS REPORTED NEAR WAKONDA OR 35 MILES SOUTHWEST OF
SIOUX FALLS. IT MOVING EAST AT 50 MPH AND WILL TRACK THROUGH THE
NORTHERN PART OF THE CLAY COUNTY.
 
THIS WARNING IS AN UPGRADE OF A SEVERE THUNDERSTORM WARNING THAT WAS IN
EFFECT FOR CLAY COUNTY.
 
PEOPLE IN THE PATH OF THIS STORM SHOULD SEEK SHELTER IMMEDIATELY.
 
PEOPLE BOATING ON THE MISSOURI RIVER SHOULD SEEK SAFE SHELTER
IMMEDIATELY.
 
DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. IF YOU ARE CAUGHT
IN THE PATH OF A TORNADO...LEAVE THE CAR AND GO TO A STRONG
BUILDING. IF NO STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR
LOW SPOT.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 7:02 PM CDTTornado WarningFSDCharles Mix43 min
Jun 16, 7:05 PM CDTSevere Thunderstorm WarningFSDBrookings40 min
Jun 16, 8:09 PM CDTTornado WarningFSDMcCook20 min
Jun 16, 8:19 PM CDTSevere Thunderstorm WarningFSDHutchinson41 min
Jun 16, 8:40 PM CDTSevere Thunderstorm WarningFSDTurner50 min
Jun 16, 8:45 PM CDTSevere Thunderstorm WarningFSDClay, Yankton45 min
Jun 16, 8:53 PM CDTSevere Thunderstorm WarningFSDMcCook, Minnehaha52 min
Jun 16, 9:01 PM CDTSevere Thunderstorm WarningFSDLincoln44 min
Jun 16, 9:11 PM CDTSevere Thunderstorm WarningFSDBrookings, Moody49 min
Jun 16, 9:20 PM CDTTornado WarningFSDUnion25 min

Nearby

Tornado Warnings in South Dakota, 1992Every tornado warning in 1992Tornadoes in 1992

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.