Alert archive / South Dakota / Tornado Warnings in 1995

Tornado Warning 4, NWS Aberdeen, SD

July 3, 1995McPherson County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jul 3, 1995, 9:11 PM CDT for McPherson County, South Dakota. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
Jul 3, 1995, 9:11 PM CDT (02:11 UTC)
Expired
Jul 3, 1995, 9:57 PM CDT
In force
46 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County McPherson County, SD

The radar

The Aberdeen radar (KABR), 72 km from the middle of the area, began a volume at 02:11 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, 2.2 hours before the alert went out and 116 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 1995-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1633 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 1995-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 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
1633 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
1497 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KABR 040211
TORABR
SDC089-040300-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
911 PM CDT MON JUL 3 1995

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1000 PM CDT (900 PM MDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHEAST SOUTH DAKOTA

   ...WESTERN MCPHERSON COUNTY
 
AT 909 PM CDT...A TORNADO WAS DETECTED BY ABERDEEN DOPPLER RADAR 43
MILES EAST OF MOBRIDGE OR 3 MILES SOUTHEAST OF EUREKA MOVING
NORTHEAST AT 17 MPH. THE TORNADO IS EXPECTED TO REMAIN IN RURAL
AREAS.
 
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 AVAILABL,E...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.

GS/HG

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, Jul 3, 4:36 PM CDT, 4 hours 35 minutes before
SDZ003>011-015>018-040340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
438 PM CDT (338 PM MDT) MON JUL 3 1995

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 10 PM FOR ALL OF
NORTH CENTRAL AND NORTHEAST SOUTH DAKOTA...

THE AIRMASS OVER NORTH CENTRAL AND NORTHEAST SOUTH DAKOTA HAS BECOME
VERY UNSTABLE AHEAD OF AN ADVANCING STRONG UPPER LEVEL AREA OF LOW
PRESSURE. THIS WILL ALLOW SEVERE THUNDERSTORMS TO DEVELOP LATE THIS
AFTERNOON AND EVENING.

A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE
THUNDERSTORMS TO DEVELOP AND PRODUCE LARGE HAIL AND DAMAGING WINDS.

AT 430 PM...THE STRONGEST THUNDERSTORM WAS LOCATED NEAR LANGTREE ABOUT
5 MILES EAST OF DUPREE.  OTHERWISE...AN AREA OF STRONG
THUNDERSTORMS WERE MOVING INTO THE WESTERN END OF CORSON AND DEWEY
COUNTIES.  THESE THUNDERSTORMS WERE MOVING NORTH AT 20 MILES AN HOUR.

KEEP UP WITH THE LATEST WEATHER INFORMATION AND POSSIBLE WARNINGS.

IF YOU ARE OUTDOORS WHEN THUNDERSTORMS APPROACH...MOVE TO A PLACE OF
SHELTER IMMEDIATELY. BOATERS ARE URGED TO MOVE ONTO SHORE QUICKLY
AND SEEK REFUGE IN A BUILDING. CAMPERS WITHOUT BUILDINGS AVAILABLE
SHOULD MOVE FROM TENTS INTO FULLY ENCLOSED AUTOMOBILES...IF POSSIBLE...
FOR LIGHTNING PROTECTION.

GUERRERO/MIDDLEBROOKE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 7:38 PM CDTSevere Thunderstorm WarningABRSpink62 min
Jul 3, 8:07 PM CDTSevere Thunderstorm WarningABRPotter63 min
Jul 3, 8:19 PM CDTSevere Thunderstorm WarningABRFaulk66 min
Jul 3, 8:23 PM CDTSevere Thunderstorm WarningABRHand52 min
Jul 3, 8:32 PM CDTSevere Thunderstorm WarningABRWalworth63 min
Jul 3, 8:51 PM CDTFlash Flood WarningABRSpink59 min
Jul 3, 8:51 PM CDTSevere Thunderstorm WarningABRSpink59 min
Jul 3, 9:23 PM CDTSevere Thunderstorm WarningABRFaulk62 min
Jul 3, 9:51 PM CDTFlash Flood WarningABRSpink59 min
Jul 3, 9:51 PM CDTSevere Thunderstorm WarningABRSpink59 min
Jul 3, 9:58 PM CDTSevere Thunderstorm WarningABRBeadle62 min
Jul 3, 10:55 PM CDTSevere Thunderstorm WarningABRDay50 min
Jul 3, 11:00 PM CDTSevere Thunderstorm WarningABRClark45 min
Jul 3, 11:07 PM CDTSevere Thunderstorm WarningABRBeadle42 min
Jul 3, 11:53 PM CDTSevere Thunderstorm WarningABRMiner52 min

Nearby

Tornado Warnings in South Dakota, 1995Every tornado warning in 1995Tornadoes 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; radar from the NEXRAD Level II archive.