Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 95, NWS Twin Cities, MN

June 30, 1994Freeborn County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 30, 1994, 10:52 PM CDT for Freeborn County, Minnesota. It was in force for 38 min.

The area

The counties it named.

The facts

Issued
Jun 30, 1994, 10:52 PM CDT (03:52 UTC)
Expired
Jun 30, 1994, 11:30 PM CDT
In force
38 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Freeborn County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 3.9 hours before the alert went out and 132 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 1994-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2237 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 00:00Z on 1994-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 266 square meters per square second.19395878Sfc1 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
2237 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
1140 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
266 m²/s²
0-3 km storm-relative helicity
383 m²/s²
Significant tornado parameter
4.4
Supercell composite
12.4

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KRST 010353 RRA
SVRRST
MNC047-010430-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ROCHESTER MN
1052 PM CDT THU JUN 30 1994
 
THE NATIONAL WEATHER SERVICE IN ROCHESTER MN HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL 1130 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL MINNESOTA
 
   ...SOUTHERN FREEBORN COUNTY
 
AT 1046PM CDT FREEBORN COUNTY SHERIFF REPORTED A SEVERE THUNDERSTORM 7
MILES SOUTHWEST OF ALBERT LEA NEAR TWIN LAKES. THIS STORM PRODUCED 60
MPH WIND GUSTS AND GOLFBALL SIZE HAIL IN THE CITY OF TWIN LAKES. THIS
STORM SHOULD BE NEAR EMMONS AND GORDONSVILLE BY 1115PM CDT.
 
 
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.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.
REMEMBER SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE
OR NO WARNING.  STAY INDOORS...REMAIN CALM AND BE READY TO MOVE
QUICKLY TO THE BASEMENT.
 
 
 
&

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 30, 9:41 PM CDT, 1 hour 11 minutes before
MNZ074>096-010500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
941 PM CDT THU JUN 30 1994

...STRONG TO SEVERE THUNDERSTORMS MOVING THROUGH SOUTHERN MINNESOTA...

POWERFUL THUNDERSTORMS WERE MOVING THROUGH SOUTHWEST AND SOUTH CENTRL
MINNESOTA. AT 940 PM...A 20 TO 30 MILE WIDE LINE OF SEVERE THUNDERSTORMS
WAS LOCATED FROM COMFREY...MANKATO AND NORTH OF WASECA. THESE STORMS
WERE MOVING SOUTH AT 15 MILES AN HOUR.

PERSONS IN BROWN COUNTY...BLUE EARTH COUNTY SOUTHERN LE SUEUR AND WASECA
COUNTY IN SOUTH CENTRAL MINNESOTA CAN NOT ONLY EXPECT LARGE
HAIL...STRONG WINDS AND THE POSSIBILITY OF A TORNADO...BUT TORRENTIAL
RAINS AS WELL. THE SLOW MOVEMENT OF THE STORMS WILL MAKE THESE AREAS
SUSCEPTABLE TO FLOODING OF ROADWAYS AND RAPID RISES ON AREA STREAMS.

BE CAUTIOUS WHEN DRIVING AFTER DARK.  THE BLINDING RAINS ASSOCIATED WITH
THE STORMS WILL MAKE IT VERY DIFFICULT WHEN COMMUTING THROUGH SOUTH
CENTRAL MINNESOTA. NOT KNOWING THE DEPTH OF WATER ON A ROADWAY COULD
PROVE DEADLY.

THESE STORMS SHOULD MOVE THROUGH SOUTH CENTRAL MINNESOTA...SOUTH OF
FARIMONT...BLUE EARTH AND ALBERT LEA THROUGH ABOUT MIDNIGHT.

A TORNADO WARNING REMAIN IN EFFECT FOR MOST OT THE SOUTHERN THIRD OF
MINNESOTA UNTIL 3 AM FRIDAY MORNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF EAST CENTRAL
MINNESOTA UNTIL 11 PM.
 DWE
Special weather statement, Jun 30, 9:44 PM CDT, 1 hour 8 minutes before
MNZ074>096-010500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
941 PM CDT THU JUN 30 1994

...STRONG TO SEVERE THUNDERSTORMS MOVING THROUGH SOUTHERN MINNESOTA...

POWERFUL THUNDERSTORMS WERE MOVING THROUGH SOUTHWEST AND SOUTH CENTRL
MINNESOTA. AT 940 PM...A 20 TO 30 MILE WIDE LINE OF SEVERE THUNDERSTORMS
WAS LOCATED FROM COMFREY...MANKATO AND NORTH OF WASECA. THESE STORMS
WERE MOVING SOUTH AT 15 MILES AN HOUR.

PERSONS IN BROWN COUNTY...BLUE EARTH COUNTY SOUTHERN LE SUEUR AND WASECA
COUNTY IN SOUTH CENTRAL MINNESOTA CAN NOT ONLY EXPECT LARGE
HAIL...STRONG WINDS AND THE POSSIBILITY OF A TORNADO...BUT TORRENTIAL
RAINS AS WELL. THE SLOW MOVEMENT OF THE STORMS WILL MAKE THESE AREAS
SUSCEPTABLE TO FLOODING OF ROADWAYS AND RAPID RISES ON AREA STREAMS.

BE CAUTIOUS WHEN DRIVING AFTER DARK.  THE BLINDING RAINS ASSOCIATED WITH
THE STORMS WILL MAKE IT VERY DIFFICULT WHEN COMMUTING THROUGH SOUTH
CENTRAL MINNESOTA. NOT KNOWING THE DEPTH OF WATER ON A ROADWAY COULD
PROVE DEADLY.

THESE STORMS SHOULD MOVE THROUGH SOUTH CENTRAL MINNESOTA...SOUTH OF
FARIMONT...BLUE EARTH AND ALBERT LEA THROUGH ABOUT MIDNIGHT.

A TORNADO WARNING REMAIN IN EFFECT FOR MOST OT THE SOUTHERN THIRD OF
MINNESOTA UNTIL 3 AM FRIDAY MORNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF EAST CENTRAL
MINNESOTA UNTIL 11 PM.
 DWE
Special weather statement, Jun 30, 10:00 PM CDT, 52 minutes before
MNZ074>096-010500-

SPECIAL WEATHER STATEMENT...CORECTION OF WATCH
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
941 PM CDT THU JUN 30 1994

...STRONG TO SEVERE THUNDERSTORMS MOVING THROUGH SOUTHERN MINNESOTA...

POWERFUL THUNDERSTORMS WERE MOVING THROUGH SOUTHWEST AND SOUTH CENTRL
MINNESOTA. AT 940 PM...A 20 TO 30 MILE WIDE LINE OF SEVERE THUNDERSTORMS
WAS LOCATED FROM COMFREY...MANKATO AND NORTH OF WASECA. THESE STORMS
WERE MOVING SOUTH AT 15 MILES AN HOUR.

PERSONS IN BROWN COUNTY...BLUE EARTH COUNTY SOUTHERN LE SUEUR AND WASECA
COUNTY IN SOUTH CENTRAL MINNESOTA CAN NOT ONLY EXPECT LARGE
HAIL...STRONG WINDS AND THE POSSIBILITY OF A TORNADO...BUT TORRENTIAL
RAINS AS WELL. THE SLOW MOVEMENT OF THE STORMS WILL MAKE THESE AREAS
SUSCEPTABLE TO FLOODING OF ROADWAYS AND RAPID RISES ON AREA STREAMS.

BE CAUTIOUS WHEN DRIVING AFTER DARK.  THE BLINDING RAINS ASSOCIATED WITH
THE STORMS WILL MAKE IT VERY DIFFICULT WHEN COMMUTING THROUGH SOUTH
CENTRAL MINNESOTA. NOT KNOWING THE DEPTH OF WATER ON A ROADWAY COULD
PROVE DEADLY.

THESE STORMS SHOULD MOVE THROUGH SOUTH CENTRAL MINNESOTA...SOUTH OF
FARIMONT...BLUE EARTH AND ALBERT LEA THROUGH ABOUT MIDNIGHT.

A TORNADO WATCH REMAINS IN EFFECT FOR MOST OT THE SOUTHERN THIRD OF
MINNESOTA UNTIL 3 AM FRIDAY MORNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MUCH OF EAST CENTRAL
MINNESOTA UNTIL 11 PM.
 DWE
Special weather statement, Jun 30, 10:20 PM CDT, 32 minutes before
MNZ010>012>017-024>026-032>038-042>098-010515-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1020 PM CDT THU JUN 30 1994

...PORTIONS OF TORNADO WATCH NO. 528 CANCELLED...
...MOST OF SEVERE THUNDERSTORM WATCH NO. 527 CANCELLED...

THE NATIONAL WEATHER SERVICE HAS CANCELLED MOST OF SEVERE THUNDERSTORM
WATCH NO. 527 AS OF 1015 PM. THE ONLY COUNTIES THAT REMAINS IN THE WATCH
ARE PINE COUNTY AND CHISAGO COUNTY OF EAST CENTRAL MINNESOTA. THE WATCH
REMAINS IN EFFECT UNTIL 11 PM.

THE COUNTIES OF BROWN...NICOLLET...LE SUEUR AND RICE HAVE BEEN
CLEARED FROM THE TORNADO WATCH. THE REST OF ABOUT THE SOUTHERN THIRD
OF MINNESOTA...OR THAT AREA BOUNDED SOUTH OF A LINE FROM PIPESTONE...
ST JAMES...MANKATO...WASECA...OWATONNA...RED WING...AND PRESTON
REMAINS UNDER THE TORNADO WATCH UNTIL 3 AM FRIDAY MORNING.
 DWE
Special weather statement, Jun 30, 10:21 PM CDT, 31 minutes before
MNZ010>012>017-024>026-032>038-042>098-010515-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1020 PM CDT THU JUN 30 1994

...PORTIONS OF TORNADO WATCH NO. 528 CANCELLED...
...MOST OF SEVERE THUNDERSTORM WATCH NO. 527 CANCELLED...

THE NATIONAL WEATHER SERVICE HAS CANCELLED MOST OF SEVERE THUNDERSTORM
WATCH NO. 527 AS OF 1015 PM. THE ONLY COUNTIES THAT REMAINS IN THE WATCH
ARE PINE COUNTY AND CHISAGO COUNTY OF EAST CENTRAL MINNESOTA. THE WATCH
REMAINS IN EFFECT UNTIL 11 PM.

THE COUNTIES OF BROWN...NICOLLET...LE SUEUR AND RICE HAVE BEEN CLEARED
FROM THE TORNADO WATCH. THE REST OF ABOUT THE SOUTHERN THIRD OF MINNESOT...OR THAT AREA BOUNDED SOUTH OF A LINE FROM PIPESTO'NE...ST
JAMES...MANKATO...WASECA...OWATONNA...RED WING...AND PRESTON REMAINS
UNDER THE TORNADO WATCH UNTIL 3 AM FRIDAY MORNING.
 DWE
Special weather statement, Jun 30, 10:24 PM CDT, 28 minutes before
MNZ010>012>017-024>026-032>038-042>098-010515-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1020 PM CDT THU JUN 30 1994

...PORTIONS OF TORNADO WATCH NO. 528 CANCELLED...
...MOST OF SEVERE THUNDERSTORM WATCH NO. 527 CANCELLED...

THE NATIONAL WEATHER SERVICE HAS CANCELLED MOST OF SEVERE THUNDERSTORM
WATCH NO. 527 AS OF 1015 PM. THE ONLY COUNTIES THAT REMAINS IN THE WATCH
ARE PINE COUNTY AND CHISAGO COUNTY OF EAST CENTRAL MINNESOTA. THE WATCH
REMAINS IN EFFECT UNTIL 11 PM.

THE COUNTIES OF BROWN...NICOLLET...LE SUEUR AND RICE HAVE BEEN
CLEARED FROM THE TORNADO WATCH. THE REST OF ABOUT THE SOUTHERN THIRD
OF MINNESOTA...OR THAT AREA BOUNDED SOUTH OF A LIN-E FROM PIPESTONE...
ST JAMES...MANKATO...WASECA...OWATONNA...RED WING...AND PRESTON
REMAINS UNDER THE TORNADO WATCH UNTIL 3 AM FRIDAY MORNING.
 DWE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 7:01 PM CDTSevere Thunderstorm WarningMPXCarver, Sibley59 min
Jun 30, 7:13 PM CDTTornado WarningMPXCarver, McLeod32 min
Jun 30, 7:22 PM CDTSevere Thunderstorm WarningMPXHennepin68 min
Jun 30, 7:42 PM CDTTornado WarningMPXCarver33 min
Jun 30, 7:47 PM CDTTornado WarningMPXSibley28 min
Jun 30, 7:54 PM CDTSevere Thunderstorm WarningMPXLe Sueur, Nicollet51 min
Jun 30, 8:13 PM CDTTornado WarningMPXScott32 min
Jun 30, 8:21 PM CDTSevere Thunderstorm WarningMPXSibley39 min
Jun 30, 8:22 PM CDTSevere Thunderstorm WarningMPXNicollet68 min
Jun 30, 8:32 PM CDTTornado WarningMPXLe Sueur, Nicollet28 min
Jun 30, 8:42 PM CDTSevere Thunderstorm WarningMPXBrown48 min
Jun 30, 8:49 PM CDTSevere Thunderstorm WarningMPXDakota, Scott21 min
Jun 30, 8:51 PM CDTTornado WarningMPXBlue Earth, Nicollet54 min
Jun 30, 9:41 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Waseca49 min
Jun 30, 9:41 PM CDTSevere Thunderstorm WarningMPXWatonwan49 min
Jun 30, 10:19 PM CDTTornado WarningMPXFreeborn26 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.