Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 40, NWS Twin Cities, MN

June 4, 1994Le Sueur County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 4, 1994, 9:59 PM CDT for Le Sueur County, Minnesota. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
Jun 4, 1994, 9:59 PM CDT (02:59 UTC)
Expired
Jun 4, 1994, 10:45 PM CDT
In force
46 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Le Sueur County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 3.0 hours before the alert went out and 54 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 00:00Z on 1994-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1994-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2290 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
168 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 050304 RRA
SVRRST
MNC079-050345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ROCHESTER MINNESOTA
ISSUED BY MINNEAPOLIS MN
959 PM CDT SAT JUN 4 1994

THE NATIONAL WEATHER SERVICE HAS ISSUED A 
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH CENTRAL MINNESOTA

   ...NORTHERN LESUEUR COUNTY
           

AT 10 PM...RADAR INDCIATED A SEVERE THUNDERSTORM NEAR LE SUEUR ALONG THE
MINNESOTA RIVER...ABOUT 55 MILES SOUTHWEST OF MINNEAPOLIS. CITIES IN THE
PATH OF THE STORM ARE...LE SUERE...LEXINGTON AND MONTGOMERY. THE STORMS
WERE MOVING EAST AT 15 TO 20 MILES AN HOUR.
 
PERSONS IN THE WARNED AREA CAN EXPECT LARGE HAIL AND GUSTY WINDS.           


SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND...LARGE HAIL...
DEADLY LIGHTNING...AND VERY HEAVY RAIN.  FOR YOUR PROTECTION
MOVE TO AN INTERIOR ROOM.  PEOPLE IN MOBILE HOMES SHOULD GO
TO A STORM SHELTER.

D

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 4, 8:44 PM CDT, 1 hour 15 minutes before
MNZ052-053-059>063-065>070-073-WIZ014>016-023-028-050245-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
844 PM CDT SAT JUN 4 1994

...STRONG THUNDERSTORMS APPROACHING TWIN CITIES METRO AREA...

AT 830 PM...THUNDERSTORMS...SOME WITH HEAVY RAIN...WERE APPROACHING THE
EXTREME WESTERN EDGE OF THE GREATER TWIN CITIES METRO AREA.  THE
LEADING EDGE OF THIS LINE OF RAINSHOWERS AND THUNDERSTORMS EXTENDED
FROM NEAR PARK RAPIDS TO ST CLOUD IN CENTRAL MINNESOTA TO THE WESTERN
EDGE OF THE GREATER TWIN CITIES AREA AT WACONIA TO WATERVILLE.

THE STRONGEST THUNDERSTORMS WERE NEAR GLENCOE...ABOUT 50 MILES WEST OF
MINNEAPOLIS...AND NEAR COKATO...ABOUT 40 MILES NORTHWEST OF MINNEAPOLIS.

SOME OF THESE THUNDERSTORMS MAY PRODUCE SMALL HAIL...STRONG GUSTY
WINDS...FREQUENT DEADLY LIGHTNING...AND VERY HEAVY RAINFALL.  PERSONS
ENGAGED IN OUTDOOR ACTIVITIES SUCH AS BOATING OR GOLFING SHOULD BE
READY TO SEEK SAFE SHELTER.

MOVEMENT OF THE THUNDERSTORMS WAS TO THE EAST AT 15 TO 20 MILES AN HOUR.
BY 930 PM...THEY SHOULD BE APPROACHING FOLEY...MONTICELLO...AND THE
LAKE MINNETONKA AREA OF THE WESTERN SUBURBS OF THE TWIN CITIES.
KRAFT
Special weather statement, Jun 4, 8:45 PM CDT, 1 hour 14 minutes before
MNZ052-053-059>063-065>070-073-WIZ014>016-023-028-050245-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
844 PM CDT SAT JUN 4 1994

...STRONG THUNDERSTORMS APPROACHING TWIN CITIES METRO AREA...

AT 830 PM...THUNDERSTORMS...SOME WITH HEAVY RAIN...WERE APPROACHING THE
EXTREME WESTERN EDGE OF THE GREATER TWIN CITIES METRO AREA.  THE
LEADING EDGE OF THIS LINE OF RAINSHOWERS AND THUNDERSTORMS EXTENDED
FROM NEAR PARK RAPIDS TO ST CLOUD IN CENTRAL MINNESOTA TO THE WESTERN
EDGE OF THE GREATER TWIN CITIES AREA AT WACONIA TO WATERVILLE.

THE STRONGEST THUNDERSTORMS WERE NEAR GLENCOE...ABOUT 50 MILES WEST OF
MINNEAPOLIS...AND NEAR COKATO...ABOUT 40 MILES NORTHWEST OF MINNEAPOLIS.

SOME OF THESE THUNDERSTORMS MAY PRODUCE SMALL HAIL...STRONG GUSTY
WINDS...FREQUENT DEADLY LIGHTNING...AND VERY HEAVY RAINFALL.  PERSONS
ENGAGED IN OUTDOOR ACTIVITIES SUCH AS BOATING OR GOLFING SHOULD BE
READY TO SEEK SAFE SHELTER.

MOVEMENT OF THE THUNDERSTORMS WAS TO THE EAST AT 15 TO 20 MILES AN HOUR.
BY 930 PM...THEY SHOULD BE APPROACHING FOLEY...MONTICELLO...AND THE
LAKE MINNETONKA AREA OF THE WESTERN SUBURBS OF THE TWIN CITIES.
KRAFT
Special weather statement, Jun 4, 9:29 PM CDT, 30 minutes before
MNZ042>043-046-048>051-054>058-064-050330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
930 PM CDT SAT JUN 4 1994

...SHOWERS AND THUNDERSTORMS MOVING THROUGH CENTRAL MINNESOTA...

A LINE OF SHOWERS AND THUNDERSTORMS CONTINUES TO MOVE ACROSS CENTRAL
MINNESOTA.

THE STRONGEST STORMS WERE LOCATED IN SOUTHEASTERN STEARNS AND WEST
CENTRAL MORRISON COUNTIES. THE STORM IN MORRISON COUNTY SHOULD MOVE
INTO LITTLE FALLS BY 10 PM...WHILE THE STORM IN STEARNS COUNTY SHOULD
MOVE INTO NORTHERN WRIGHT COUNTY BY 10 PM. THESE STORMS HAVE A
HISTORY OF HEAVY RAIN...STRONG WINDS...AND FREQUENT LIGHTNING
STRIKES.

PERSONS IN THE PATH OF THESE STORMS SHOULD BE PREPARED FOR ADVERSE
WEATHER dCONDITIONS. STAY INDOORS AND DONT USE THE TELEPHONE
UNLESS NECESSARY.

PARKIN
Special weather statement, Jun 4, 9:30 PM CDT, 29 minutes before
MNZ042>043-046-048>051-054>058-064-050330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
930 PM CDT SAT JUN 4 1994

...SHOWERS AND THUNDERSTORMS MOVING THROUGH CENTRAL MINNESOTA...

A LINE OF SHOWERS AND THUNDERSTORMS CONTINUES TO MOVE ACROSS CENTRAL
MINNESOTA.

THE STRONGEST STORMS WERE LOCATED IN SOUTHEASTERN STEARNS AND WEST
CENTRAL MORRISON COUNTIES. THE STORM IN MORRISON COUNTY SHOULD MOVE
INTO LITTLE FALLS BY 10 PM...WHILE THE STORM IN STEARNS COUNTY SHOULD
MOVE INTO NORTHERN WRIGHT COUNTY BY 10 PM. THESE STORMS HAVE A
HISTORY OF HEAVY RAIN...STRONG WINDS...AND FREQUENT LIGHTNING
STRIKES.

PERSONS IN THE PATH OF THESE STORMS SHOULD BE PREPARED FOR ADVERSE
WEATHER CONDITIONS. STAY INDOORS AND DONT USE THE TELEPHONE
UNLESS NECESSARY.

PARKIN
Special weather statement, Jun 4, 9:44 PM CDT, 15 minutes before
MNZ052-053-059>063-065>070-073-WIZ014>016-023-028-050345-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
944 PM CDT SAT JUN 4 1994

...STRONG THUNDERSTORMS OVER CENTRAL AND SOUTH CENTRAL MINNESOTA...

STRONG THUNDERSTORMS WERE OCCURRING OVER CENTRAL AND SOUTH CENTRAL
MINNESOTA AT 930 PM.  VERY HEAVY RAIN AND FREQUENT LIGHTNING WERE
REPORTED BY THE SIBLEY COUNTY SHERRIFF AT GAYLORD AROUND 925 PM.
ANOTHER STRONG THUNDERSTORM WAS JUST SOUTH OF ST CLOUD IN CENTRAL
MINNESOTA.  THESE STRONG THUNDERSTORMS WERE PART OF A LARGER AREA OF
SHOWERS AND THUNDERSTORMS WHICH WAS MAINLY LOCATED TO THE WEST OF A
LINE FROM GRAND RAPIDS TO CAMBRIDGE TO ST PAUL TO OWATONNA.

MOVEMENT WAS TO THE EAST AT 15 TO 20 MILES AN HOUR.  PERSONS IN THE
VICINITY OF THE STRONG THUNDERSTORMS MAY EXPECT STRONG GUSTY WINDS...
SMALL HAIL...FREQUENT DEADLY LIGHTNING...AND VERY HEAVY RAINFALL.
THOSE ENGAGED IN OUTDOOR ACTIVITIES SUCH AS BOATING SHOULD BE READY TO
SEEK SAFE SHELTER.
KRAFT
Special weather statement, Jun 4, 9:45 PM CDT, 14 minutes before
MNZ052-053-059>063-065>070-073-WIZ014>016-023-028-050345-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
944 PM CDT SAT JUN 4 1994

...STRONG THUNDERSTORMS OVER CENTRAL AND SOUTH CENTRAL MINNESOTA...

STRONG THUNDERSTORMS WERE OCCURRING OVER CENTRAL AND SOUTH CENTRAL
MINNESOTA AT 930 PM.  VERY HEAVY RAIN AND FREQUENT LIGHTNING WERE
REPORTED BY THE SIBLEY COUNTY SHERRIFF AT GAYLORD AROUND 925 PM.
ANOTHER STRONG THUNDERSTORM WAS JUST SOUTH OF ST CLOUD IN CENTRAL
MINNESOTA.  THESE STRONG THUNDERSTORMS WERE PART OF A LARGER AREA OF
SHOWERS AND THUNDERSTORMS WHICH WAS MAINLY LOCATED TO THE WEST OF A
LINE FROM GRAND RAPIDS TO CAMBRIDGE TO ST PAUL TO OWATONNA.

MOVEMENT WAS TO THE EAST AT 15 TO 20 MILES AN HOUR.  PERSONS IN THE
VICINITY OF THE STRONG THUNDERSTORMS MAY EXPECT STRONG GUSTY WINDS...
SMALL HAIL...FREQUENT DEADLY LIGHTNING...AND VERY HEAVY RAINFALL.
THOSE ENGAGED IN OUTDOOR ACTIVITIES SUCH AS BOATING SHOULD BE READY TO
SEEK SAFE SHELTER.
KRAFT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 10:23 PM CDTSevere Thunderstorm WarningMPXLe Sueur37 min
Jun 4, 10:46 PM CDTSevere Thunderstorm WarningMPXRice44 min
Jun 4, 11:21 PM CDTSevere Thunderstorm WarningMPXYellow Medicine39 min
Jun 4, 11:26 PM CDTSevere Thunderstorm WarningMPXRedwood, Renville49 min
Jun 5, 12:11 AM CDTSevere Thunderstorm WarningMPXGoodhue, Olmsted, Wabasha34 min
Jun 5, 12:11 AM CDTSevere Thunderstorm WarningMPXDodge34 min
Jun 5, 12:34 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Nicollet56 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.