Alert archive / South Dakota / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 16, NWS Sioux Falls, SD

May 18, 1996Brookings County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at May 18, 1996, 9:40 PM CDT for Brookings County, South Dakota. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 18, 1996, 9:40 PM CDT (02:40 UTC)
Expired
May 18, 1996, 10:25 PM CDT
In force
45 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Brookings County, SD

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 2.7 hours before the alert went out and 140 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 00:00Z on 1996-05-19Temperature 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 00:00Z on 1996-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
2021 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSD 190240
SVRFSD
SDC011-190310-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
940 PM CDT SAT MAY 18 1996

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1025 PM CDT FOR
PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL SOUTH DAKOTA

   ...BROOKINGS COUNTY
 
AT 936 PM CDT...A SEVERE THUNDERSTORM WAS DETECTED BY SIOUX FALLS
DOPPLER RADAR 20 MILES WEST OF BROOKINGS  OR 11 MILES NORTHWEST OF
SINAI MOVING EAST AT 34 MPH.

THIS STORM CAN BE EXPECTED IN THE VICINITY OF...
VOLGA                    AROUND  955 PM CDT
BRUCE                    AROUND  955 PM CDT
BROOKINGS                AROUND 1005 PM CDT
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN 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.

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

MG

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 8:22 PM CDTSevere Thunderstorm WarningFSDBrule43 min
May 18, 8:39 PM CDTSevere Thunderstorm WarningFSDCharles Mix46 min
May 18, 9:02 PM CDTTornado WarningFSDBrule33 min
May 18, 9:33 PM CDTSevere Thunderstorm WarningFSDMiner, Sanborn27 min
May 18, 10:20 PM CDTSevere Thunderstorm WarningFSDBon Homme, Charles Mix45 min
May 18, 10:41 PM CDTTornado WarningFSDBrookings34 min
May 18, 10:59 PM CDTSevere Thunderstorm WarningFSDMcCook, Minnehaha31 min
May 18, 11:25 PM CDTSevere Thunderstorm WarningFSDLincoln, Minnehaha, Turner30 min
May 18, 11:57 PM CDTSevere Thunderstorm WarningFSDLincoln28 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1996Every severe thunderstorm warning in 1996

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.