Alert archive / South Dakota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 29, NWS Sioux Falls, SD

June 6, 1994Minnehaha County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 6, 1994, 7:45 PM CDT for Minnehaha County, South Dakota. It was in force for 30 min.

The area

The counties it named.

The facts

Issued: Jun 6, 1994, 7:45 PM CDT (00:45 UTC)
Expired: Jun 6, 1994, 8:15 PM CDT
In force: 30 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Minnehaha County, SD

The nearest sounding before it

Aberdeen, SD (KHON), launched 00:00Z, 0.8 hours before the alert went out and 187 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2212 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 1152 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: -73 m²/s²
Significant tornado parameter: -0.6
Supercell composite: -2.5

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KFSD 070045 RRA
SVRFSD
SDC099-070115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SIOUX FALLS SD
745 PM CDT MON JUN 6 1994

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 815 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE SOUTHEAST PART OF SOUTH DAKOTA
      MINNEHAHA

 AT 740 PM CDT MARBLE TO GOLFBALL SIZE HAIL WAS REPORTED IN THE
HARTFORD AND HUMBOLT AREA ...AND 1 INCH HAIL WAS REPORTED AT CROOKS
SOUTH DAKOTA. THIS IS 5 TO 10 MILES NORTHWEST OF SIOUX FALLS. THE
THUNDERSTORMS WAS MOVING EAST 15 MPH. SOME CITIES EFFECT BY THIS
STORM ARE CROOKS...HARTFORD...SIOUX FALLS AND ELLIS.

IF YOU ARE IN THE PATH OF THIS STORM..YOU SHOULD GET TO A REINFORCED
SHELTER. A SEVERE THUNDERSTORM PRODUCES DAMAGING 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.

BEHREND

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 6, 6:09 PM CDT, 1 hour 36 minutes before

IAZ013-020-021-031-032-043-NEZ013-015-SDZ071-070015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX CITY IA
609 PM CDT MON JUN 6 1994

...ISOLATED THUNDERSTORMS CAN BE EXPECTED THIS EVENING...

A SINGLE THUNDERSTORM WAS NEAR AURELIA IOWA...50 MILES NORTHEAST OF
SIOUX CITY AT 605 PM.  THIS THUNDERSTORM WILL MOVE ALONG THE EASTERN
BORDER OF CHEROKEE COUNTY THROUGH 7 PM...AND IT WILL PRODUCE BRIEF
HEAVY RAIN AND SMALL HAIL.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM CDT FOR
SOUTHEAST SOUTH DAKOTA AND NORTHWEST IOWA.

SQI

Special weather statement, Jun 6, 6:26 PM CDT, 1 hour 19 minutes before

SDZ062-070015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
620 PM CDT MON JUN 6 1994

...STRONG THUNDERSTORMS MOVING INTO NORTHERN MINNEHAHA COUNTY...

STRONG THUNDERSTORMS CONTAINING HEAVY RAIN...GUSTY WINDS...AND SMALL
HAIL HAVE MOVED INTO NORTHERN MINNEHAHA COUNTY.  THESE THUNDERSTORMS
ARE MOVING SOUTHEAST AT 15 MPH AND WILL PASS THROUGH GARRETSON AT AROUND
645 PM AND BE IN THE VICINITY OF CORSON AND BRANDON SHORTLY AFTER
7 PM.  WHILE NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS
PERSONS IN NORTHEAST MINNEHAHA COUNTY SHOULD BE PREPARED TO SEEK
SHELTER AS THESE STORMS PASS.

A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 8 PM CDT FOR THE
TRI-STATE AREA AND PEOPLE ARE ADVISED TO BE ALERT FOR SEVERE WEATHER
AND TAKE SHELTER IF THREATNING WEATHER APPROACHES.

HARMON

Local storm report, Jun 6, 7:00 PM CDT, 45 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
700 PM CDT MON JUN 6 1994

STORM DATA FOR JUNE 6 1994

 TIME          COUNTY...LOCATION AND STATE   CHARACTER OF STORM...DAMAGE
.......................................................................

 438 PM CDT   3/4 TO 1 INCH HAIL LAKE BENTON/TYLER AREA OF LINCOLN CO.
              MINNESOTA.  RELAYED BY LAW ENFORCEMENT.

 444 PM CDT   1 INCH HAIL ALONG WITH VERY HEAVY RAIN AT WHITE IN
              BROOKINGS CO. SD.

 555 PM CDT   BASEBALL SIZE HAIL AT CHANDLER MN IN MURRAY CO. MN
              RELAYED BY LAW ENFORCEMENT.

 542 PM CDT   1 INCH HAIL AND WIND GUST TO 60 MPH AT LAKE WILSON IN
              MURRAY CO MN.  BY NWS EMPLOYEE.
 550 PM CDT    3/4 INCH HAIL AND WIND GUST 60 MPH IN CHANDLER MN IN
              MURRAY COUNTY.  BY NWS EMPLOYEE.

 645 PM CDT   MARBLE TO DIME SIZE HAIL AND 32 TO 38 MPH WIND GUSTS AT
              BREWSTER MN IN NOBLES COUNTY MN.  BY NWS SPOTTER.

 647 PM CDT   DIME TO NICKLE SIZE HAIL...HEAVY RAIN AND 30 TO 40 MPH
              WIND GUSTS AT BREWSTER MN IN NOBLES COUNTY MN.  REPORTED
              BY BREWSTER FIRE DEPT.

DEMORIN

Special weather statement, Jun 6, 7:06 PM CDT, 39 minutes before

SDZ062-MNZ089-098-070100Z-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
705 PM CDT MON JUN 6 1994

...SEVERE THUNDERSTORM WATCH EASTERN SOUTH DAKOTA...SOUTHWEST
MINNESOTA AND NORTHWEST IOWA UNTIL 8 PM CDT...

AT 655 PM CDT RADAR SHOWED A LINE OF THUNDERSTORMS FROM 10 NORTH OF
SIOUX FALLS NEAR BALTIC SOUTH DAKOTA TO 15 MILES WEST OF WORTHINGTON
NEAR ADRIAN MINNESOTA.

HAIL...STRONG WINDS...VERY HEAVY RAIN AND DANGEROUS CLOUD TO GROUND
LIGHTNING CAN BE EXPECTED WITH THESE STORMS. SOME URBAN AND SMALL
STREAM FLOODING MAY ALSO OCCUR.

AT 645 PM PEA SIZE HAIL WAS REPORTED NEAR GARRETSON. AT 7 PM PEA TO
DIME SIZE HAIL AND VERY HEAVY RAIN WAS REPORTED JUST WEST OF BEAVER
CREEK MINNESOTA. AT 705 PM PEA SIZE HAIL WAS REPORTED AT TERRACE PARK
IN SIOUX FALLS.

RESIDENTS IN THESE AREAS SHOULD BE PREPARED FOR THIS ADVERSE WEATHER.
MOVE TO A SAFE REINFORCED SHELTER IF NECESSARY. STAY OUT OF LOW LYING
AREAS.

BLOOM

Local storm report, Jun 6, 7:13 PM CDT, 32 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
700 PM CDT MON JUN 6 1994

STORM DATA FOR JUNE 6 1994

 TIME          COUNTY...LOCATION AND STATE   CHARACTER OF STORM...DAMAGE
.......................................................................

 438 PM CDT   3/4 TO 1 INCH HAIL LAKE BENTON/TYLER AREA OF LINCOLN CO.
              MINNESOTA.  RELAYED BY LAW ENFORCEMENT.

 444 PM CDT   1 INCH HAIL ALONG WITH VERY HEAVY RAIN AT WHITE IN
              BROOKINGS CO. SD.

 555 PM CDT   BASEBALL SIZE HAIL AT CHANDLER MN IN MURRAY CO. MN
              RELAYED BY LAW ENFORCEMENT.

 542 PM CDT   1 INCH HAIL AND WIND GUST TO 60 MPH AT LAKE WILSON IN
              MURRAY CO MN.  BY NWS EMPLOYEE.
 550 PM CDT    3/4 INCH HAIL AND WIND GUST 60 MPH IN CHANDLER MN IN
              MURRAY COUNTY.  BY NWS EMPLOYEE.

 645 PM CDT   MARBLE TO DIME SIZE HAIL AND 32 TO 38 MPH WIND GUSTS AT
              BREWSTER MN IN NOBLES COUNTY MN.  BY NWS SPOTTER.

 647 PM CDT   DIME TO NICKLE SIZE HAIL...HEAVY RAIN AND 30 TO 40 MPH
              WIND GUSTS AT BREWSTER MN IN NOBLES COUNTY MN.  REPORTED
              BY BREWSTER FIRE DEPT.

DEMORIN

Special weather statement, Jun 6, 7:40 PM CDT, 5 minutes before

SDZ062-070130Z-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
735 PM CDT MON JUN 6 1994

...SEVERE THUNDERSTORM WATCH EASTERN SOUTH DAKOTA...SOUTHWEST
MINNESOTA AND NORTHWEST IOWA UNTIL 8 PM CDT...

AT 730 PM CDT A STRONG THUNDERSTORM WAS MOVING INTO THE NORTHERN
PORTIONS OF SIOUX FALLS. HEAVY RAIN...GUSTY WINDS...DANGEROUS LIGHTNING
AND SMALL HAIL CAN BE EXPECTED IN THE SIOUX FALLS METROPOLITAN AREA
THROUGH 8 PM THIS EVENING.

THE STORM IS MOVING SOUTHEAST AT 15 TO 20 MILES AN HOUR AND SHOULD BE
OUT OF THE SIOUX FALLS AREA BY 830 PM.

PERSONS IN THE SIOUX FALLS ARE SHOULD BE PREPARED FOR BRIEF HEAVY RAINS
AND LOCALLIZED STREET FLOODING. IF SEVERE WEATHER APPROACHES..B.SEEK
SHELTER IMMEDIATELY.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 8:15 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Minnehaha	39 min
Jun 6, 9:01 PM CDT	Tornado Warning	FSD	Tripp	14 min
Jun 7, 2:39 AM CDT	Severe Thunderstorm Warning	FSD	Union	36 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1994 Every 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.