Alert archive / South Dakota / Tornado Warnings in 1996

Tornado Warning 2, NWS Sioux Falls, SD

May 18, 1996Brookings County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at May 18, 1996, 10:41 PM CDT for Brookings County, South Dakota. It was in force for 34 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, 10:41 PM CDT (03:41 UTC)
Expired
May 18, 1996, 11:15 PM CDT
In force
34 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, 3.7 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 190342
TORFSD
SDC011-190415-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1041 PM CDT SAT MAY 18 1996

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL SOUTH DAKOTA

   ...BROOKINGS COUNTY
 
AT 1038 PM CDT...A TORNADO WAS REPORTED BY THE PUBLIC 4 MILES
SOUTHEAST OF BROOKINGS NEAR AURORA MOVING EAST AT 40 MPH.

AT PRESENT MOVEMENT THE TORNADO WILL BE AROUND...
AURORA                   AROUND 1042 PM CDT
 
DO NOT USE YOUR CAR TO OUTRUN A TORNADO.  CARS ARE EASILY TOSSED
AROUND BY TORNADIC WINDS.  IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO...LEAVE THE CAR AND GO TO A STRONG REINFORCED BUILDING.  IF
NO STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT.


CHAPMAN

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, 9:40 PM CDTSevere Thunderstorm WarningFSDBrookings45 min
May 18, 10:20 PM CDTSevere Thunderstorm WarningFSDBon Homme, Charles Mix45 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

Tornado Warnings in South Dakota, 1996Every tornado warning in 1996Tornadoes 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.