Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 49, NWS Sioux Falls, SD

June 16, 1990Mellette County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 16, 1990, 1:23 PM CDT for Mellette County, South Dakota. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Jun 16, 1990, 1:23 PM CDT (18:23 UTC)
Expired
Jun 16, 1990, 2:15 PM CDT
In force
52 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Mellette County, SD

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 6.4 hours before the alert went out and 179 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, Rapid City, SD at 12:00Z on 1990-06-16Temperature 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, Rapid City, SD at 12:00Z on 1990-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
0 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
82 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 161825
SVRFSD
SDC095-161915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
123 PM CDT SAT JUN 16 1990
 
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  215 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH CENTRAL SOUTH DAKOTA
          ...NORTHERN MELLETTE
 
SOME CITIES INCLUDED IN THIS WARNING ARE WHITE RIVER.
 
AT 120 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM IN NORTHWEST
MELLETTE COUNTY ABOUT 60 MILES NORTHWEST OF WINNER IN SOUTHCENTRAL
SOUTH DAKOTA MOVING EAST AT 30 MPH.
 
 
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO ADVANCE WARNING SO B)E ON THE LOOKOUT.
 
RYRHOLM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 9:29 PM CDTSevere Thunderstorm WarningFSDAurora, Davison46 min
Jun 15, 10:27 PM CDTSevere Thunderstorm WarningFSDHanson33 min
Jun 15, 10:59 PM CDTSevere Thunderstorm WarningFSDMcCook31 min
Jun 15, 11:35 PM CDTSevere Thunderstorm WarningFSDLake25 min
Jun 16, 4:31 PM CDTSevere Thunderstorm WarningFSDYankton29 min
Jun 16, 5:21 PM CDTSevere Thunderstorm WarningFSDClay39 min
Jun 16, 5:46 PM CDTTornado WarningFSDClay, Lincoln29 min
Jun 16, 5:56 PM CDTTornado WarningFSDUnion34 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1990Every severe thunderstorm warning in 1990

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.