Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 26, NWS Twin Cities, MN

May 23, 1994Brown County, Nicollet County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 23, 1994, 11:07 PM CDT for Brown County, Nicollet County, Minnesota. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
May 23, 1994, 11:07 PM CDT (04:07 UTC)
Expired
May 23, 1994, 11:54 PM CDT
In force
47 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Brown County, MN, Nicollet County, MN

The nearest sounding before it

Aberdeen, SD (KHON), launched 00:00Z, 4.1 hours before the alert went out and 317 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 1994-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1212 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 00:00Z on 1994-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
1212 J/kg
Mixed-layer CIN
-102 J/kg
Mixed-layer LCL
2117 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
134 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KRST 240408 RRA
SVRRST
MNC015-103-240500-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ROCHESTER MN
1107 PM CDT MON MAY 23 1994
 
THE NATIONAL WEATHER SERVICE IN ROCHESTER MN HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL MIDNIGHT CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL MINNESOTA
 
   ...BROWN COUNTY...WESTERN NICOLLET COUNTY
 
THIS WARNING INCLUDES THE TOWNS OF EVAN...SANBORN...SLEEPY EYE...AND NEW
ULM.
 
AT 11PM RADAR INDICATED SEVERE THUNDERSTORMS 15 MILES NORTHEAST OF
REDWOOD FALLS AND 15 MILES WEST OF REDWOOD FALL MOVING SOUTHEAST AT 30
MPH.
 
THE SEVERE THUNDERSTORMS SHOULD REACH THE TOWNS OF EVAN AND SANBORN BY
1130PM...AND MOVE TO SLEEPY EYE AND NEW ULM BY 1145PM CDT.
 
PERSONS IN THE PATH OF THESE STORMS CAN EXPECT LARGE HAIL AND DAMAGING
WIND GUSTS IN EXCESS OF 50 MPH.  GO TO YOUR BASEMENT OR INTERIOR ROOM
AND STAY AWAY FROM WINDOWS.
 
WHEN SEVERE THUNDERSTORMS ARE OCCURRING...STAY INSIDE A STRONG
BUILDING.  PROTECT YOURSELF FROM DAMAGING WINDS OR HAIL BY
KEEPING AWAY FROM WINDOWS.  LISTEN TO YOUR RADIO OR TELEVISION...
BUT TURN OFF ALL OTHER ELECTRICAL APPLIANCES.  DO NOT USE THE
PHONE DURING PERIODS OF FREQUENT LIGHTNING.
 
A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PART OF SOUTHERN
MINNESOTA UNTIL 5AM TUESDAY.
 
SCS
 
&

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, May 23, 9:22 PM CDT, 1 hour 45 minutes before
MNC127-129-240330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
922 PM CDT MON MAY 23 1994

...THUNDERSTORM WATCH FOR REDWOOD AND RENVILLE COUNTIES UNTIL 11 PM...

AT 1020 A STRONG THUNDERSTORM WAS LOCATED ALONG THE MINNESOTA RIVER
50 MILES NORTHWEST OF REDWOOD FALLS...JUST NORTH OF LAQ QUI PARLE AND
WATSON. THIS THUNDERSTORM IS MOVING TO THE SOUTHEAST AT 25 TO 30 MILES
AN HOUR AND WILL MOVE INTO REDWOOD AND RENVILLE COUNTIES AROUND 10 PM.
THIS THUNDERSTORM HAS PRODUCED LARGE HAIL AND GUSTY WINDS.

IF YOU ARE ENGAGED IN OUTDOOR ACTIVITIES BE PREPARED TO MOVE INDOORS AS
THIS STORM APPROACHES. LISTEN TO LOCAL MEDIA FOR FURTHER STATEMENTS OR
WARNINGS FOR THIS STORM.
L
CARSTENS
Local storm report, May 23, 9:30 PM CDT, 1 hour 37 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
930 PM CDT MON MAY 23 1994

REPORT FOR 23 MAY 1994, SECOND REPORT, OTHERS WILL FOLLOW.
ALL TIMES CDT

TIME      EVENT
 825 PM   ORTONVILLE, BIG STONE COUNTY,  QUARTER SIZE  (1 INCH)
          HAIL, WIND GUST TO 60 MPH.
 835 PM   ODESSA,  BIG STONE COUNTY, GOLF BALL SIZE ( 13/4 INCH)
          HAIL, HEAVY RAIN, WIND GUST TO 45 MPH.
 914 PM   BENSON, SWIFT COUNTY, 3/4 INCH HAIL.

 915 PM   MADISON, LAC QUI PARLE COUNTY, 3/4 INCH HAIL.

 910 PM   BELLINGHAM, LAC QUI PARLE COUNTY, 1 INCH HAIL.

 FRASER
Special weather statement, May 23, 9:30 PM CDT, 1 hour 37 minutes before
MNZ018>019-022>036-240330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
930 PM CDT MON MAY 23 1994

...SEVERE THUNDERSTORM WATCHES CANCELLED FOR PART OF NORTHERN AND
CENTRAL MINNESOTA...

THE NATIONAL WEATHER SERVICE HAS CLEARED THE FOLLOWING COUNTIES...

NORMAN    MAHNOMEN      BECKER      SOUTHERN CLEARWATER
CLAY      OTTER TAIL    HUBBARD     CASS
WILKIN    WADENA        CROW WING   ITASCA
NORTHERN AITKIN         CENTRAL ST LOUIS
SOUTHERN KOOCHICHING

TDK
Local storm report, May 23, 9:34 PM CDT, 1 hour 33 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
930 PM CDT MON MAY 23 1994

REPORT FOR 23 MAY 1994, SECOND REPORT, OTHERS WILL FOLLOW.
ALL TIMES CDT

TIME      EVENT
 825 PM   ORTONVILLE, BIG STONE COUNTY,  QUARTER SIZE  (1 INCH)
          HAIL, WIND GUST TO 60 MPH.
 835 PM   ODESSA,  BIG STONE COUNTY, GOLF BALL SIZE ( 13/4 INCH)
          HAIL, HEAVY RAIN, WIND GUST TO 45 MPH.
 914 PM   BENSON, SWIFT COUNTY, 3/4 INCH HAIL.

 915 PM   MADISON, LAC QUI PARLE COUNTY, 3/4 INCH HAIL.

 910 PM   BELLINGHAM, LAC QUI PARLE COUNTY, 1 INCH HAIL.

 FRASER
Special weather statement, May 23, 9:34 PM CDT, 1 hour 33 minutes before
MNZ018>019-022>036-240330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
930 PM CDT MON MAY 23 1994

...SEVERE THUNDERSTORM WATCHES CANCELLED FOR PART OF NORTHERN AND
CENTRAL MINNESOTA...

THE NATIONAL WEATHER SERVICE HAS CLEARED THE FOLLOWING COUNTIES...

NORMAN    MAHNOMEN      BECKER      SOUTHERN CLEARWATER
CLAY      OTTER TAIL    HUBBARD     CASS
WILKIN    WADENA        CROW WING   ITASCA
NORTHERN AITKIN         CENTRAL ST LOUIS
SOUTHERN KOOCHICHING

TDK
Special weather statement, May 23, 11:00 PM CDT, 7 minutes before
MNZ042>044-046-048>051-054-058-064-240500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
1100 PM CDT MON MAY 23 1994

...SEVERE THUNDERSTORM WATCH FOR WEST AND SOUTH CENTRAL MINNESOTA
   UNTIL 5 AM CDT...

AT 1100 PM A LARGE AREA OF THUNDERSTORMS COVERED MUCH OF CENTRAL
MINNESOTA FROM BRAINERD TO MILLE LACS LAKE AND SOUTH TO THE TWIN
CITIES AND REDWOOD FALLS THEN UP TO ALEXANDRIA. THUNDERSTORMS IN THIS
AREA HAVE DECREASED IN INTENSITY SINCE 10 PM AND NO SEVERE WEATHER
HAS BEEN REPORTED EXCEPT IN THE REDWOOD FALLS AREA WHERE A SEVERE
THUNDERSTORM CONTINUES TO MOVE SOUTHEAST AT 25 MPH.

ADDITIONAL THUNDERSTORMS CONTINUE TO DEVELOP IN EASTERN SOUTH DAKOTA
AND WILL BE MOVING INTO WEST CENTRAL MINNESOTA WHERE THE POTENTIAL
FOR SEVERE WEATHER STILL EXISTS. PERSONS IN THESE AREAS SHOULD REMAIN
ALERT FOR ADVERSE WEATHER AND CONTINUE TO MONITOR NOAA WEATHER RADIO
AND LOCAL RADIO AND TV FOR POSSIBLE STATEMENTS OR WARNINGS.

RAY

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 23, 7:45 PM CDTSevere Thunderstorm WarningMPXBig Stone60 min
May 23, 7:54 PM CDTSevere Thunderstorm WarningMPXBig Stone51 min
May 23, 8:43 PM CDTSevere Thunderstorm WarningMPXLac qui Parle47 min
May 23, 9:05 PM CDTSevere Thunderstorm WarningMPXChippewa, Swift55 min
May 23, 9:38 PM CDTSevere Thunderstorm WarningMPXYellow Medicine52 min
May 23, 9:52 PM CDTSevere Thunderstorm WarningMPXBenton, Sherburne, Stearns53 min
May 23, 10:02 PM CDTSevere Thunderstorm WarningMPXKandiyohi43 min
May 23, 10:07 PM CDTSevere Thunderstorm WarningMPXRedwood, Renville53 min
May 23, 10:52 PM CDTSevere Thunderstorm WarningMPXRedwood38 min
May 23, 11:38 PM CDTSevere Thunderstorm WarningMPXWatonwan52 min
May 24, 12:43 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault32 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.