Alert archive / South Dakota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 68, NWS Sioux Falls, SD

June 24, 1994Charles Mix County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 24, 1994, 6:04 PM CDT for Charles Mix County, South Dakota. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Jun 24, 1994, 6:04 PM CDT (23:04 UTC)
Expired
Jun 24, 1994, 6:30 PM CDT
In force
26 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Charles Mix County, SD

The nearest sounding before it

Aberdeen, SD (KHON), launched 12:00Z, 11.1 hours before the alert went out and 189 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 12:00Z on 1994-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 27 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 1994-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 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
27 J/kg
Mixed-layer CIN
-347 J/kg
Mixed-layer LCL
1530 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KFSD 242304 RRA
SVRFSD
SDC023-242330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
604 PM CDT FRI JUN 24 1994
 
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL SOUTH DAKOTA
 
   ...EASTERN CHARLES-MIX COUNTY
 
AT 603 PM CDT...WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM
MOVING INTO EASTERN CHARLES MIX COUNTY 10 MILES NORTHEAST OF LAKE ANDES
NEAR THE COMMUNITY OF ARMOUR. THE STORM WAS MOVING TO THE SOUTH AT 35
MPH.
 
HAIL UP TO SOFTBALL SIZE WAS REPORTED WITH THIS STORM AS IT MOVED
THROUGH SOUTHERN AURORA AND DOUGLAS COUNTIES BETWEEN 530 AND 545 PM.
 
IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD GET TO A
REINFORCED SHELTER. A SEVERE THUNDERSTORM PRODUCES WINDS IN EXCESS
OF 60 MPH...HAIL 3/4 INCH OR LARGER...DEADLY LIGHTNING...AND HEAVY
RAIN THAT CAN QUICKLY FLOOD A LOW LYING AREA.
 
MG

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, Jun 24, 3:25 PM CDT, 2 hours 39 minutes before
SDZ019>023-037>ACOMMS:XMIT 1
Special weather statement, Jun 24, 3:25 PM CDT, 2 hours 39 minutes before
SDZ019>023-037>ACOMMS:XMIT 1
Special weather statement, Jun 24, 5:12 PM CDT, 52 minutes before
SDC003-009-011-015-023-027-035-043-053-061-067-242315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
509 PM CDT FRI JUN 24 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR EASTERN SOUTH DAKOTA UNTIL
   1000 PM CDT...

AT 505 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED STRONG
THUNDERSTORMS MOVING THROUGH EASTERN SOUTH DAKOTA. THE STRONGEST STORM
WAS LOCATED 5 MILES SOUTHEAST OF WESSINGTON SPRINGS...OR 30 MILES
NORTHWEST OF MITCHELL...WITH ANOTHER STRONG STORM 10 MILES NORTH OF HURO
THESE STORMS WERE MOVING TO THE SOUTH AT 35-40 MPH.

PERSONS IN THE PATH OF THESE STRONGER STORMS CAN EXPECT BRIEF HEAVY
RAINFALL...STRONG GUSTY WINDS...DANGEROUS LIGHTNING...AND XPOSSIBLY SMALL
HAIL.

STAY TUNED TO NOAA WEATEHR RADIO...OR YOUR LOCAL RADIO OR T.V. STATIONS
FOR THE LATEST WEATHER INFORMATION.

MG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 5:21 PM CDTSevere Thunderstorm WarningFSDDouglas54 min
Jun 24, 5:21 PM CDTSevere Thunderstorm WarningFSDAurora38 min
Jun 24, 6:34 PM CDTSevere Thunderstorm WarningFSDCharles Mix26 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.