Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 4, NWS La Crosse, WI

May 30, 1994Jackson County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at May 30, 1994, 8:36 PM CDT for Jackson County, Wisconsin. It was in force for 39 min.

The area

The counties it named.

The facts

Issued
May 30, 1994, 8:36 PM CDT (01:36 UTC)
Expired
May 30, 1994, 9:15 PM CDT
In force
39 min
Issued by
NWS La Crosse, WI
Area
Whole counties

County Jackson County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.6 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, Green Bay/Straub, WI at 00:00Z on 1994-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 765 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, Green Bay/Straub, WI at 00:00Z on 1994-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
765 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1634 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KLSE 310136
SVRARX
WIC053-310215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
836 PM CDT MON MAY 30 1994
 
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  915 PM CDT
    FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL WISCONSIN
 
   ...SOUTHERN JACKSON COUNTY
 
AT 835 PM...RADAR INDICATED A SEVERE THUNDERSTORM 30 MILES NORTH OF
LA CROSSE NEAR HEGG ON THE WESTERN JACKSON COUNTY LINE. THE STORM
WAS MOVING EAST-SOUTHEAST AT 30 MILES AN HOUR AND WILL BE MOVING
JUST NORTH OF MELROSE BY 850 PM.
 
THIS STORM IS GOING TO PRODUCE DAMAGING WINDS...LARGE HAIL...
AND DEADLY LIGHTNING.  GO INDOORS AND STAY AWAY FROM WINDOWS.
GET OUT OF MOBILE HOMES AND MOVE TO A STORM SHELTER NOW.
 
A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA.  SEVERE
THUNDERSTORMS SOMETIMES PRODUCE TORNADOS WITH LITTLE OR
NO WARNING.  SEEK SHELTER IN A REINFORCED BUILDING AND BE
PREPARED TO QUICKLY MOVE TO THE BASEMENT.
 
THOMPSON
 
NNNN

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 30, 6:13 PM CDT, 2 hours 23 minutes before
MNZ074>079-082>088-091>096-310015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
612 PM CDT MON MAY 30 1994

...THUNDERSTORMS DEVELOPING IN SOUTHEAST MINNESOTA...

A FEW THUNDERSTORMS ARE STARTING TO DEVELOP IN SOUTHEAST MINNESOTA.
AT 6PM THUNDERSTORMS WERE 30 MILES WEST OF ROCHESTER AND SHOULD
MOVE THROUGH OWATONNA BY 620PM AND APPROACH ROCHESTER BY 7PM.
ANOTHER THUNDERSTORM WAS 25 MILES WEST OF RED WING AND SHOULD MOVE
THROUGH CANNON FALLS BY 620PM AND REACH RED WING BEFORE 7PM.

IF YOU ARE IN THE PATH OF THESE THUNDERSTORMS...EXPECT SMALL
HAIL...BRIEF HEAVY RAIN...AND WIND GUSTS TO 45 MPH.

THUNDERSTORMS MAY BECOME MORE NUMEROUS AND INTENSIFY ACROSS SOUTHEAST
MINNESOTA THIS EVENING.  PERSONS FROM RED WING TO ROCHESTER AND WINONA
SHOULD GO INDOORS UNTIL THE THUNDERSTORMS HAVE ENDED.

A TORNADO WATCH IS IN EFFECT FOR A PORTION OF SOUTHEAST MINNESOTA UNTIL
10PM.

SCS

STAY TUNED TO NOAA WEATHER RADIO...RADIO OR TELEVISION FOR THE
LATEST UPDATES CONCERNING THIS DEVELOPING WEATHER SITUATION.
Special weather statement, May 30, 8:02 PM CDT, 34 minutes before
WIZ032>034-041-042-053-054-310200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
800 PM CDT MON MAY 30 1994

...STRONG THUNDERSTORMS WERE MOVING INTO LA CROSSE AREA...

AT 800 PM...STRONG THUNDERSTORMS EXTENDED FROM 50 MILES NORTH OF LA
CROSSE TO 30 MILES WEST OF LA CROSSE AND THEN ON INTO NORTHERN IOWA.
THE STRONGEST STORM WAS LOCATED 30 MILES NORTH OF LA CROSSE NEAR
ARCADIA AND WAS PRODUCING 40 MILE AN HOUR WIND GUSTS.

THROUGH 9 PM...THUNDERSTORMS ARE EXPECTED TO CONTINUE MOVING INTO THE
LA CROSSE AREA AND SHOULD BEGIN AFFECTING THE CITY OF LA CROSSE
SHORTLY AFTER 830 PM.  A PERIOD OF HEAVY RAIN AND DEADLY LIGHTNING
IS EXPECTED...BUT THERE IS ALSO THE POSSIBILITY OF LARGE HAIL AND
DAMAGING WINDS.

A TORNADO WATCH IS IN EFFECT UNTIL 10 PM FOR MOST OF THE AREA...
EXCEPT FOR ADJACENT COUNTIES SOUTH OF LA CROSSE.  KEEP LISTENING
FOR THE LATEST WEATHER INFORMATION ON RADIO...TV...OR WEATHER RADIO.

THOMPSON
Local storm report, May 30, 8:09 PM CDT, 27 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
810 PM CDT MON MAY 30 1994

TIME            EVENT/LOCATION

700 PM          HIGH WINDS IN MONDOVI/BUFFALO COUNTY/55 MILES NORTH
                OF LA CROSSE.  NO ESTIMATE OF WIND SPEEDS.

730 PM          DOWNED TREES IN INDEPENDENCE/TREMPEALEAU COUNTY/
                40 MILES NORTH OF LA CROSSE.

THOMPSON
Local storm report, May 30, 8:10 PM CDT, 26 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
810 PM CDT MON MAY 30 1994

TIME            EVENT/LOCATION

700 PM          HIGH WINDS IN MONDOVI/BUFFALO COUNTY/55 MILES NORTH
                OF LA CROSSE.  NO ESTIMATE OF WIND SPEEDS.

730 PM          DOWNED TREES IN INDEPENDENCE/TREMPEALEAU COUNTY/
                40 MILES NORTH OF LA CROSSE.

THOMPSON
Special weather statement, May 30, 8:34 PM CDT, 2 minutes before
MNC045-055-169-310230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
834 PM CDT MON MAY 30 1994

...TORNADO WARNING FOR EASTERN OLMSTED...WESTERN WINONA...AND FILLMORE
COUNTIES IN SOUTHEAST MINNESOTA HAS EXPIRED...

THUNDERSTORMS HAVE WEAKENED IN EXTREME SOUTHEAST MINNESOTA.  AT 830PM
THUNDERSTORMS WERE NEAR WINONA...RUSHFORD...PRESTON...AND HARMONY.
THESE THUNDERSTORMS SHOULD BE NEAR LACRESCENT...HOUSTON...AND CALEDONIA
BY 845PM AND MOVE OUT OF THE SOUTHEAST TIP OF MINNESOTA BETWEEN 9PM AND
930PM.

IF YOU ARE IN THE PATH OF THESE THUNDERSTORMS...EXPECT BRIEF HEAVY
RAIN...DANGEROUS LIGHTNING...AND POSSIBLY SOME SMALL HAIL.

A TORNADO WATCH IS IN EFFECT FOR A PART OF SOUTHEAST MINNESOTA UNTIL
10PM CDT.

SCS

&
Special weather statement, May 30, 8:35 PM CDT, 1 minute before
MNC045-055-169-310230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
834 PM CDT MON MAY 30 1994

...TORNADO WARNING FOR EASTERN OLMSTED...WESTERN WINONA...AND FILLMORE
COUNTIES IN SOUTHEAST MINNESOTA HAS EXPIRED...

THUNDERSTORMS HAVE WEAKENED IN EXTREME SOUTHEAST MINNESOTA.  AT 830PM
THUNDERSTORMS WERE NEAR WINONA...RUSHFORD...PRESTON...AND HARMONY.
THESE THUNDERSTORMS SHOULD BE NEAR LACRESCENT...HOUSTON...AND CALEDONIA
BY 845PM AND MOVE OUT OF THE SOUTHEAST TIP OF MINNESOTA BETWEEN 9PM AND
930PM.

IF YOU ARE IN THE PATH OF THESE THUNDERSTORMS...EXPECT BRIEF HEAVY
RAIN...DANGEROUS LIGHTNING...AND POSSIBLY SOME SMALL HAIL.

A TORNADO WATCH IS IN EFFECT FOR A PART OF SOUTHEAST MINNESOTA UNTIL
10PM CDT.

SCS

&

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 30, 8:47 PM CDTSevere Thunderstorm WarningARXMonroe43 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 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.