Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 27, NWS Sioux Falls, SD

June 6, 1994Nobles County, Minnesota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 6, 1994, 6:31 PM CDT for Nobles County, Minnesota. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
Jun 6, 1994, 6:31 PM CDT (23:31 UTC)
Expired
Jun 6, 1994, 7:30 PM CDT
In force
59 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Nobles County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 11.5 hours before the alert went out and 216 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, Minneapolis, MN at 12:00Z on 1994-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 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, Minneapolis, MN at 12:00Z on 1994-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 118 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
9 J/kg
Mixed-layer CIN
-120 J/kg
Mixed-layer LCL
1315 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
118 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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, Jun 6, 3:55 PM CDT, 2 hours 36 minutes before
IAZ013-020-021-031-032-043-SDZ071-062215-

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

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

NO SEVERE WEATHER WAS OCCURRING IN THE AREA AT 350 PM. HOWEVER
STRONG THUNDERSTORMS WILL MOVE NEAR HARTLEY IOWA...70 MILES NORTHEAST
OF SIOUX CITY BETWEEN 430 AND 5 PM. THE STORMS MAY PRODUCE LARGE
HAIL...STRONG WINDS AND LOCALLY HEAVY RAIN.

HOPPES
Special weather statement, Jun 6, 5:10 PM CDT, 1 hour 21 minutes before
IAZ002-062230Z-

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

...SEVERE THUNDERSTORM WARNING OSCEOLA COUNTY UNTIL 530 PM CDT...

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

AT 455 PM CDT RADAR SHOWED A SEVERE THUNDERSTORM 25 MILES SOUTHEAST OF
WORTHINGTON MINNESOTA NEAR MELVIN IOWA. THE THUNDERSTORM WAS MOVING
SOUTHEAST AT 10 MPH.

55 MPH WINDS AND MARBLE TO GOLF BALL SIZE HAIL WERE REPORTED WITH THIS
STORM WHEN IT WENT THROUGH SIBLEY IOWA ABOUT 4 PM.

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

BY 530 PM THIS THUNDERSTORM SHOULD MOVE SOUTH OF OSCEOLA COUNTY.

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
Special weather statement, Jun 6, 5:28 PM CDT, 1 hour 3 minutes before
SDZALL-MNZ033-063-081-083-101-105-117-133-IAZ119-143-167-062300-

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

...SCATTERED THUNDERSTORMS...SOME SEVERE OVER THE TRI-STATE AREA...

SCATTERED THUNDERSTORMS CONTINUED OVER THE TRI-STATE AREA OF SOUTHEAST
SOUTH DAKOTA...SOUTHWEST MINNESOTA AND NORTHWEST IOWA. SOME OF THESE
THUNDERSTORMS HAVE PRODUCED UP TO ONE INCH HAIL...VERY HEAVY AND WINDS
OF 50 TO 55 MPH. AT 515 PM CDT THW STRONGEST THUNDERSTOMS FROM NEAR
ELKTON SOUTH DAKOTA...15 MILES SOUTHEAST OF BROOKINGS TO JUST TO EAST OF
PIPESTONE MINNESOTA TO 15 MILES SOUTHEAST OF SIBLEY IOWA. THE
THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 15 MPH.

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

WB
Special weather statement, Jun 6, 6:09 PM CDT, 22 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, 6:09 PM CDT, 22 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, 5 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

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 4:30 PM CDTSevere Thunderstorm WarningFSDO'Brien45 min
Jun 6, 4:33 PM CDTSevere Thunderstorm WarningFSDOsceola57 min
Jun 6, 5:14 PM CDTSevere Thunderstorm WarningFSDO'Brien24 min
Jun 6, 2:11 PM CDTSevere Thunderstorm WarningFSDAurora34 min
Jun 6, 3:55 PM CDTSevere Thunderstorm WarningFSDBrookings50 min
Jun 6, 2:36 PM CDTSevere Thunderstorm WarningFSDPipestone, Rock39 min
Jun 6, 3:33 PM CDTSevere Thunderstorm WarningFSDNobles, Rock57 min
Jun 6, 4:47 PM CDTSevere Thunderstorm WarningFSDLincoln, Lyon, Murray, Pipestone58 min
Jun 6, 5:25 PM CDTSevere Thunderstorm WarningFSDMurray, Pipestone43 min
Jun 6, 5:33 PM CDTSevere Thunderstorm WarningFSDNobles, Rock57 min
Jun 6, 6:54 PM CDTSevere Thunderstorm WarningFSDJackson21 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 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.