Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 30, NWS La Crosse, WI

September 13, 1994Monroe County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Sep 13, 1994, 6:19 PM CDT for Monroe County, Wisconsin. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Sep 13, 1994, 6:19 PM CDT (23:19 UTC)
Expired
Sep 13, 1994, 7:00 PM CDT
In force
41 min
Issued by
NWS La Crosse, WI
Area
Whole counties

County Monroe County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.3 hours before the alert went out and 209 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 12:00Z on 1994-09-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 58 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 12:00Z on 1994-09-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 191 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
58 J/kg
Mixed-layer CIN
-149 J/kg
Mixed-layer LCL
1203 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
191 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLSE 132319 RRA
SVRLSE
WIC123-081-140015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
619 PM CDT TUE SEP 13 1994
 
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONSS...
 
IN SOUTHWEST WISCONSIN
 
   ...VERNON COUNTY
 
IN WEST CENTRAL WISCONSIN
 
   ...MONROE COUNTY
 
AT 620 PM...RADAR INDICATED SEVERE THUNDERSTORMS NEAR LA CROSSE...WEST
SALEM...MIDDLE RIDGE...AND SPARTA. THE STORMS WERE MOVING SOUTHEAST
AT 25 MILES AN HOUR...AND WILL AFFECT THE CASHTON...COON VALLEY...AND
WILTON AREAS THROUGH 700 PM.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
BRUCE
 
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, Sep 13, 3:37 PM CDT, 2 hours 42 minutes before
WIZ041-132145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
337 PM CDT TUE SEP 13 1994

TEST...TEST...TEST...

THIS IS A COMMUNICATIONS TEST ONLY.

BRUCE

NNNN
Special weather statement, Sep 13, 3:45 PM CDT, 2 hours 34 minutes before
WIZ032>034-041-042-053-054-132300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
345 PM CDT TUE SEP 13 1994

...THUNDERSTORMS DEVELOPING NORTHWEST OF LA CROSSE...

AT 340 PM...RADAR INDICATED STRONG THUNDERSTORMS NEAR ALMA AND NELSON
OR ABOUT 50 MILES NORTHWEST OF LA CROSSE. THESE STORMS WERE MOVING TO
THE EAST SOUTHEAST AT 30 MILES AN HOUR AND WILL BE AFFECTING AREAS TO
THE NORTH AND WEST OF LA CROSSE BETWEEN 345 AND 600 PM.

HEAVY RAINS AND DEADLY LIGHTNING WILL OCCUR WITH THESE STORMS AND
THERE IS ALSO A CHANCE OF SMALL HAIL AND BRIEF GUSTY WINDS. PERSONS
SHOULD STAY INDOORS UNTIL THESE STORMS PASS AND STAY TUNED TO
WEATHER RADIO FOR LATER UPDATES CONCERNING THE STORMS.

ALBRECHT
Special weather statement, Sep 13, 5:12 PM CDT, 1 hour 7 minutes before
MNZ078-079-087-088-095-096-132315-

SPECIAL WEATHER STATEMENT...CORRECTION FOR ZONES
NATIONAL WEATHER SERVICE ROCHESTER MN
512 PM CDT TUE SEP 13 1994

...STRONG THUNDERSTORMS IN SOUTHEAST MINNESOTA...

AT 510 PM...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS OVER
SOUTHEAST MINNESOTA. THESE THUNDERSTORMS WERE LOCATED FROM WINONA...TO
UTICA...TO ROCHESTER. THESE STORMS WERE DEVELOPING QUICKLY AND MOVING
TO THE EAST AT 35 MPH.

DOWNPOURS...DEADLY LIGHTNING...AND SMALL HAIL ARE POSSIBLE WITH
THESE STORMS. PERSONS SHOULD STAY INDOORS UNTIL THESE STORMS PASS.

TEAL
Special weather statement, Sep 13, 5:15 PM CDT, 1 hour 4 minutes before
MNC045-049-055-109-157-169-132315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
512 PM CDT TUE SEP 13 1994

...STRONG THUNDERSTORMS IN SOUTHEAST MINNESOTA...

AT 510 PM...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS OVER
SOUTHEAST MINNESOTA. THESE THUNDERSTORMS WERE LOCATED FROM WINONA...TO
UTICA...TO ROCHESTER. THESE STORMS WERE DEVELOPING QUICKLY AND MOVING
TO THE EAST AT 35 MPH.

DOWNPOURS...DEADLY LIGHTNING...AND SMALL HAIL ARE POSSIBLE WITH
THESE STORMS. PERSONS SHOULD STAY INDOORS UNTIL THESE STORMS PASS.

TEAL
Special weather statement, Sep 13, 5:21 PM CDT, 58 minutes before
MNZ078-079-087-088-095-096-132315-

SPECIAL WEATHER STATEMENT...CORRECTION FOR ZONES
NATIONAL WEATHER SERVICE ROCHESTER MN
512 PM CDT TUE SEP 13 1994

...STRONG THUNDERSTORMS IN SOUTHEAST MINNESOTA...

AT 510 PM...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS OVER
SOUTHEAST MINNESOTA. THESE THUNDERSTORMS WERE LOCATED FROM WINONA...TO
UTICA...TO ROCHESTER. THESE STORMS WERE DEVELOPING QUICKLY AND MOVING
TO THE EAST AT 35 MPH.

DOWNPOURS...DEADLY LIGHTNING...AND SMALL HAIL ARE POSSIBLE WITH
THESE STORMS. PERSONS SHOULD STAY INDOORS UNTIL THESE STORMS PASS.

TEAL
Special weather statement, Sep 13, 6:18 PM CDT, 1 minute before
MNZALL-140015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
618 PM CDT TUE SEP 13 1994

...THUNDERSTORMS CONTINUE TO DEVELOP OVER SOUTHERN MINNESOTA...

AT 615 PM...RADAR INDICATED STRONG THUNDERSTORMS OVER SOUTHERN
MINNESOTA. THE STRONGEST STORMS WERE LOCATED JUST NORTH OF
NORTHFIELD...AND IN THE NEW RICHLAND AREA. THESE STORMS WERE MOVING EAST
SOUTHEAST AT 35 MPH AND WILL BE AFFECTING THE CITY OF CANNON
FALLS BY 630 PM...AND BLOOMING PRAIRIE BY 700 PM.

THESE STORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...DEADLY
LIGHTNING...AND SMALL HAIL. IF IN THE PATH OF THESE STORMS...TAKE
SHELTER UNTIL THEY PASS.

TEAL

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 13, 4:49 PM CDTSevere Thunderstorm WarningARXTrempealeau56 min
Sep 13, 4:58 PM CDTSevere Thunderstorm WarningARXJackson62 min
Sep 13, 5:26 PM CDTSevere Thunderstorm WarningARXLa Crosse, Monroe64 min
Sep 13, 5:56 PM CDTSevere Thunderstorm WarningARXLa Crosse64 min
Sep 13, 6:19 PM CDTSevere Thunderstorm WarningARXVernon56 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.