Alert archive / South Dakota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 80, NWS Sioux Falls, SD

August 4, 1995Todd County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 4, 1995, 8:47 PM CDT for Todd County, South Dakota. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Aug 4, 1995, 8:47 PM CDT (01:47 UTC)
Expired
Aug 4, 1995, 9:35 PM CDT
In force
48 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Todd County, SD

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 1.8 hours before the alert went out and 199 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 00:00Z on 1995-08-05Temperature 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 00:00Z on 1995-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939Sfc1 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
3429 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
50 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 050149
SVRFSD
SDC121-050235-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
847 PM CDT (747 PM MDT) FRI AUG 4 1995

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 935 PM CDT (835 PM MDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH CENTRAL SOUTH DAKOTA

   ...NORTHERN TODD COUNTY
 
AT 746 PM MDT...A SEVERE THUNDERSTORM WAS DETECTED BY SIOUX FALLS
DOPPLER RADAR 32 MILES NORTH OF VALENTINE  OR 2 MILES NORTHEAST OF
MISSION MOVING EAST AT 17 MPH.

THIS STORM CAN BE EXPECTED IN THE VICINITY OF...
OKREEK                   AROUND 830 PM MDT
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND hIN EXCESS OF 55 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.  FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.

MED

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 7:02 PM CDTSevere Thunderstorm WarningFSDGregory48 min
Aug 4, 9:31 PM CDTSevere Thunderstorm WarningFSDTodd49 min
Aug 4, 9:35 PM CDTSevere Thunderstorm WarningFSDTodd45 min
Aug 4, 11:08 PM CDTSevere Thunderstorm WarningFSDHanson16 min
Aug 5, 1:24 AM CDTSevere Thunderstorm WarningFSDMcCook36 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1995Every severe thunderstorm warning in 1995

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.