Alert archive / South Dakota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 52, NWS Aberdeen, SD

July 6, 1994Spink County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 6, 1994, 7:58 PM CDT for Spink County, South Dakota. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Jul 6, 1994, 7:58 PM CDT (00:58 UTC)
Expired
Jul 6, 1994, 9:00 PM CDT
In force
62 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Spink County, SD

The nearest sounding before it

Aberdeen, SD (KHON), launched 00:00Z, 1.0 hours before the alert went out and 6 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 1994-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2491 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 1994-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.193958Sfc1 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
2491 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1107 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
1.1
Supercell composite
6.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm 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 6, 4:27 PM CDT, 3 hours 31 minutes before
SDZ003-004-009-015-016-062230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
425 PM CDT (325 PM MDT) WED JUL 6 1994

...STRONG THUNDERSTORM MOVING TOWARDS CORSON AND DEWEY COUNTIES...

...AT 325 MDT...WEATHER SERVICE RADAR INDICATED A VERY STRONG
THUNDERSTORM IN NORTHERN ZEIBACH COUNTY 5 MILES WEST OF DUPREE.  THE
STORM WAS MOVING NORTHEAST AT 25 MPH AND WILL AFFECT THE NORTHWEST
PORTION OF DEWEY COUNTY INCLUDING ISABEL WHICH IS 25 MILES NORTHEAST OF
DUPREE BY 400 PM MDT.

THIS THUNDERSTORM HAS ALREADY PRODUCED 1/2 TO 3/4 INCH HAIL ALONG
WITH WINDS OF 60 MPH...BUT THE STORM WAS SHOWING SOME SIGNS OF
WEAKENING.  IF YOU ARE IN THE PATH OF THIS STORM...MOVE TO A STURDY
BUILDING AND STAY AWAY FROM WINDOWS.  AVOID USING ELECTRICAL APPLIANCES
OR THE TELEPHONE UNLESS YOU HAVE AN EMERGENCY.

REITER
Special weather statement, Jul 6, 4:27 PM CDT, 3 hours 31 minutes before
SDZ003-004-009-015-016-062230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
425 PM CDT (325 PM MDT) WED JUL 6 1994

...STRONG THUNDERSTORM MOVING TOWARDS CORSON AND DEWEY COUNTIES...

...AT 325 MDT...WEATHER SERVICE RADAR INDICATED A VERY STRONG
THUNDERSTORM IN NORTHERN ZEIBACH COUNTY 5 MILES WEST OF DUPREE.  THE
STORM WAS MOVING NORTHEAST AT 25 MPH AND WILL AFFECT THE NORTHWEST
PORTION OF DEWEY COUNTY INCLUDING ISABEL WHICH IS 25 MILES NORTHEAST OF
DUPREE BY 400 PM MDT.

THIS THUNDERSTORM HAS ALREADY PRODUCED 1/2 TO 3/4 INCH HAIL ALONG
WITH WINDS OF 60 MPH...BUT THE STORM WAS SHOWING SOME SIGNS OF
WEAKENING.  IF YOU ARE IN THE PATH OF THIS STORM...MOVE TO A STURDY
BUILDING AND STAY AWAY FROM WINDOWS.  AVOID USING ELECTRICAL APPLIANCES
OR THE TELEPHONE UNLESS YOU HAVE AN EMERGENCY.

REITER
Special weather statement, Jul 6, 6:21 PM CDT, 1 hour 37 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 7:08 PM CDTSevere Thunderstorm WarningABRHughes, Stanley67 min
Jul 6, 8:52 PM CDTTornado WarningABRSpink38 min
Jul 6, 9:05 PM CDTSevere Thunderstorm WarningABRBuffalo, Lyman40 min
Jul 6, 9:05 PM CDTSevere Thunderstorm WarningABRHand40 min
Jul 6, 11:42 PM CDTSevere Thunderstorm WarningABRSpink63 min
Jul 7, 12:26 AM CDTSevere Thunderstorm WarningABRGrant49 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1994Every severe thunderstorm warning in 1994

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.