Alert archive / South Dakota / Tornado Warnings in 1996

Tornado Warning 33, NWS Aberdeen, SD

August 6, 1996Deuel County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Aug 6, 1996, 7:50 PM CDT for Deuel County, South Dakota. It was in force for 50 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
Aug 6, 1996, 7:50 PM CDT (00:50 UTC)
Expired
Aug 6, 1996, 8:40 PM CDT
In force
50 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Deuel County, SD

The radar

The Sioux Falls radar (KFSD), 130 km from the middle of the area, began a volume at 00:51 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 0.8 hours before the alert went out and 137 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 1996-08-07Temperature 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 1996-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.19395878Sfc1 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
2080 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
242 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KABR 070050
TORABR
SDC039-070140-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
750 PM CDT TUE AUG 6 1996

THE NATIONAL WEATHER SERVICE IN ABERDEEN SD HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 840 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHEAST SOUTH DAKOTA

   ...SOUTHERN DEUEL COUNTY
 
THE COMMUNITIES MOST THREATENED BY THIS TORNADO...
JOHNSONVILLE                        AROUND 749 PM CDT
TORONTO                             AROUND 801 PM CDT
BRANDT                              AROUND 813 PM CDT

AT 749 PM CDT...A POSSIBLE TORNADO WAS REPORTED BY THE PUBLIC 14
MILES NORTH OF BROOKINGS OR IN THE VICINITY OF JOHNSONVILLE  MOVING
NORTHEAST AT 30 MPH.
 
IF YOU ARE IN THE PATH OF THIS TORNADO...SEEK SHELTER IN A
BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR
ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...
PILLOWS OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS.

TDK

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Aug 6, 4:17 PM CDT, 3 hours 33 minutes before
MNZ046-SDZ023-070220-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
417 PM CDT TUE AUG 6 1996

...TORNADO WATCH UNTIL 11 PM CDT FOR SMALL PART OF EAST CENTRAL SOUTH
DAKOTA AND INTO WESTERN MINNESOTA...

THE STORM PREDICTION CENTER IN KANSAS CITY HAS ISSUED A TORNADO
WATCH FOR PORTIONS OF EAST CENTRAL SOUTH DAKOTA AND WEST CENTRAL
MINNESOTA UNTIL 11PM CDT.

A COLD FRONT MOVING OVER THE EASTERN PORTION OF SOUTH DAKOTA WILL
BEGIN TO PRODUCE SHOWERS AND THUNDERSTORMS OVER EXTREME EASTERN
PARTS OF NORTHEAST AND EAST CENTRAL SOUTH DAKOTA LATE THIS AFTERNOON
AND EVENING.  A FEW OF THE STORMS WILL LIKELY BECOME SEVERE AND THEN
SHOULD MOVE EAST AND NORTHEAST INTO WESTERN MINNESOTA.  THE MOST
SEVERE STORMS WILL HAVE THE POTENTIAL TO PRODUCE TORNADOES.

IF YOU LIVE IN EXTREME EASTERN SOUTH DAKOTA OR WEST CENTRAL
MINNESOTA PLEASE TAKE COVER IF A WARNING IS ISSUED OR THUNDERSTORMS
APPROACH.

TDK

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; radar from the NEXRAD Level II archive.