Alert archive / South Dakota / Tornado Warnings in 1992

Tornado Warning 1, NWS Sioux Falls, SD

May 15, 1992Hanson County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at May 15, 1992, 6:25 PM CDT for Hanson County, South Dakota. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
May 15, 1992, 6:25 PM CDT (23:25 UTC)
Expired
May 15, 1992, 7:00 PM CDT
In force
35 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Hanson County, SD

The nearest sounding before it

Aberdeen, SD (KHON), launched 12:00Z, 11.4 hours before the alert went out and 145 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, Aberdeen, SD at 12:00Z on 1992-05-15Temperature 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, Aberdeen, SD at 12:00Z on 1992-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.1939587897Sfc1 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
1974 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
115 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 152325
TORFSD
SDC061-160000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE SIOUX FALLS SD
625 PM CDT FRI MAY 15 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 700 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE SOUTHEAST PART OF SOUTH DAKOTA
      HANSON

SOME OF THE CITIES INCLUDED IN THIS WARNING ARE FULTON AND
ALEXANDRIA.

AT 625 PM CDT  RADAR INDICATED A POSSIBLE TORNADO 15 MILES EAST OF
MITCHELL MOVING EAST AT 20 MPH.

IF YOU ARE IN THE PATH OF THIS TORNADO...YOU SHOULD GO TO A BASEMENT
SHELTER IF AVAILABLE. OTHERWISE GO TO A CENTRAL INTERIOR ROOM ON THE
LOWEST FLOOR POSSIBLE. CARS AND MOBILTE HOMES SHOULD BE ABANDONED FOR
A REINFORCED BUILDING.

RYRHOLM

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 2:33 PM CDTSevere Thunderstorm WarningFSDMellette27 min
May 15, 3:08 PM CDTSevere Thunderstorm WarningFSDMellette52 min
May 15, 3:18 PM CDTSevere Thunderstorm WarningFSDBon Homme, Charles Mix42 min
May 15, 4:12 PM CDTSevere Thunderstorm WarningFSDTripp48 min
May 15, 4:50 PM CDTSevere Thunderstorm WarningFSDAurora22 hr
May 15, 5:03 PM CDTSevere Thunderstorm WarningFSDTripp27 min
May 15, 5:15 PM CDTSevere Thunderstorm WarningFSDAurora30 min
May 15, 5:18 PM CDTSevere Thunderstorm WarningFSDBon Homme27 min
May 15, 5:24 PM CDTSevere Thunderstorm WarningFSDBrule, Charles Mix51 min
May 15, 6:02 PM CDTSevere Thunderstorm WarningFSDDavison43 min
May 15, 6:52 PM CDTSevere Thunderstorm WarningFSDHutchinson53 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.