Alert archive / Minnesota / Tornado Warnings in 1996

Tornado Warning 18, NWS Aberdeen, SD

May 31, 1996Big Stone County, Minnesota

NWS Aberdeen, SD issued this tornado warning at May 31, 1996, 7:47 PM CDT for Big Stone County, Minnesota. It was in force for 73 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 31, 1996, 7:47 PM CDT (00:47 UTC)
Expired
May 31, 1996, 9:00 PM CDT
In force
73 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Big Stone County, MN

The radar

The Aberdeen radar (KABR), 156 km from the middle of the area, began a volume at 00:48 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.

What was reported inside it

TimeReportWhereRemark
May 31, 8:45 PM CDTHail 0.75Clinton, MN
May 31, 8:58 PM CDTTornado F0Artichoke, MN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 0.8 hours before the alert went out and 167 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 1996-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2345 joules per kilogram.LCLEL10008507005003002001001 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 1996-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 257 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
2345 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
770 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
257 m²/s²
0-3 km storm-relative helicity
340 m²/s²
Significant tornado parameter
3.5
Supercell composite
16.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KABR 010046
TORABR
MNC011-010200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
747 PM CDT FRI MAY 31 1996

THE NATIONAL WEATHER SERVICE IN ABERDEEN SD HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 900 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN WEST CENTRAL MINNESOTA

   ...BIG STONE COUNTY
 
AT 741 PM CDT...A DEVELOPING TORNADO WAS INDICATED BY ABERDEEN
DOPPLER RADAR 25 MILES SOUTH OF SISSETON OR 14 MILES SOUTH OF BIG
STONE MOVING NORTHEAST AT 35 MPH.

THE COMMUNITIES MOST THREATENED BY THIS TORNADO...
BIG STONE LAKE                      AROUND 802 PM CDT
HARTFORD BEACH STATE PARK AREA      AROUND 802 PM CDT
CLINTON                             AROUND 810 PM CDT
BARRY                               AROUND 828 PM CDT
 
IF YOU ARE BOATING OR CAMPING...MOVE QUICKLY OFF THE WATER...
OUT OF TENTS AND CAMPERS...AND INTO STORM SHELTERS.
REST ROOMS AND SHOWERS WITHOUT WINDOWS ARE A GOOD SECOND
CHOICE. A<S A LAST RESORT...MOVE INTO A DITCH OR LOW AREA AND
COVER YOUR HEAD...BUT BE AWARE OF FLOODING WATERS.

BUCKLEW/HG/GS/WCT

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, May 31, 3:13 PM CDT, 4 hours 34 minutes before
SDZ003>005-009-010-015>017-033>036-010215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
313 PM CDT (213 PM MDT) FRI MAY 31 1996

...TORNADO WATCH IN EFFECT UNTIL 9 PM CDT (8 PM MDT)...

IN NORTH CENTRAL SOUTH DAKOTA...THE WATCH INCLUDES THE COUNTIES OF
CAMPBELL...CORSON...DEWEY...EDMUNDS...FAULK...MCPHERSON...POTTER...
AND WALWORTH. IN CENTRAL SOUTH DAKOTA THE AFFECTED COUNTIES INCLUDE
HUGHES...HYDE...STANLEY AND SULLY.

COMMUNITIES IN THE WATCH INCLUDE TIMBER LAKE...MCINTOSH...
MOBRIDGE...PIERRE...GETTYSBURG...IPSWICH...LEOLA AND FAULKTON.

A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND
SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. BE ON THE ALBERT
FOR THREATENING WEATHER...AND LISTEN FOR FURTHER STATEMENTS AND
POSSIBLE WARNINGS.

MIDDLEBROOKE
Local storm report, May 31, 3:52 PM CDT, 3 hours 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SOUTH DAKOTA
352 PM CDT FRI MAY 31 1996

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....
@
0315 PM    S ISABEL                  SD   .88 INCH HAIL
05/31/96   DEWEY                          SPOTTER REPORT FROM
                                          SHERIFF DEPT.

BUCKLEW

The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 9:01 PM CDTTornado WarningABRBig Stone34 min
May 31, 9:46 PM CDTSevere Thunderstorm WarningABRBig Stone29 min

Nearby

Tornado Warnings in Minnesota, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.