Alert archive / South Dakota / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 21, NWS Sioux Falls, SD

June 15, 1992Clay County, Yankton County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 15, 1992, 9:22 PM CDT for Clay County, Yankton County, South Dakota. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Jun 15, 1992, 9:22 PM CDT (02:22 UTC)
Expired
Jun 15, 1992, 10:15 PM CDT
In force
53 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

Counties Clay County, SD, Yankton County, SD

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 2.4 hours before the alert went out and 195 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 1992-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1992-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 192 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3614 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
192 m²/s²
0-3 km storm-relative helicity
346 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSD 160223
SVRFSD
SDC027-135-160315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
922 PM CDT MON JUN 15 1992
 
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 8:08 PM CDTSevere Thunderstorm WarningFSDMoody37 min
Jun 15, 9:40 PM CDTTornado WarningFSDUnion15 min
Jun 15, 10:19 PM CDTSevere Thunderstorm WarningFSDMinnehaha41 min
Jun 15, 11:00 PM CDTSevere Thunderstorm WarningFSDMoody30 min
Jun 16, 1:03 PM CDTSevere Thunderstorm WarningFSDCharles Mix27 min
Jun 16, 1:10 PM CDTSevere Thunderstorm WarningFSDAurora35 min
Jun 16, 1:54 PM CDTTornado WarningFSDAurora, Davison36 min
Jun 16, 2:32 PM CDTTornado WarningFSDDavison, Hanson43 min
Jun 16, 4:33 PM CDTSevere Thunderstorm WarningFSDBrookings57 min
Jun 16, 4:49 PM CDTTornado WarningFSDBrookings41 min
Jun 16, 5:34 PM CDTSevere Thunderstorm WarningFSDBrookings13 min
Jun 16, 5:58 PM CDTSevere Thunderstorm WarningFSDTripp32 min
Jun 16, 6:30 PM CDTSevere Thunderstorm WarningFSDBrookings30 min
Jun 16, 6:50 PM CDTSevere Thunderstorm WarningFSDGregory25 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1992Every severe thunderstorm warning 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.