Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 7, NWS La Crosse, WI

June 17, 1993La Crosse County, Trempealeau County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Jun 17, 1993, 3:54 PM CDT for La Crosse County, Trempealeau County, Wisconsin. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jun 17, 1993, 3:54 PM CDT (20:54 UTC)
Expired
Jun 17, 1993, 5:00 PM CDT
In force
66 min
Issued by
NWS La Crosse, WI
Area
Whole counties

Counties La Crosse County, WI, Trempealeau County, WI

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 8.9 hours before the alert went out and 205 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 12:00Z on 1993-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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 12:00Z on 1993-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
13 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
540 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
-16 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 
TTAA00 KLSE 172050
SVRLSE
WIC063-121-172145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
354 PM CDT THU JUN 17 1993
 
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  500 PM CDT
    FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN WEST CENTRAL WISCONSIN
 
   ...LA CROSSE COUNTY...SOUTHERN TREMPEALEAU COUNTY
 
AT 350 PM...RADAR INDICATED A SEVERE THUNDERSTORM OVER HOUSTON COUNTY
MINNESOTA...OR ABOUT 15 MILES WEST OF LA CROSSE. THE STORM WAS MOVING
NORTHEAST AT 25 MILES AN HOUR AND WILL AFFECT LA CROSSE...ONALASKA...
HOLMEN...GALESVILLE...AND ETTRICK BETWEEN 400 AND 500 PM.
 
THIS STORM IS GOING TO PRODUCE LARGE HAIL AND DEADLY LIGHTNING.
MOVE INDOORS AND STAY AWAY FROM WINDOWS.  DO NOT USE THE
TELEPHONE UNLESS ABSOLUTELY NECESSARY.
 
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, Jun 17, 2:05 PM CDT, 1 hour 49 minutes before
MNZ017>019-172000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
205 PM CDT THU JUN 17 1993

...SEVERE THUNDERSTORM WATCH UNTIL 8 PM...
...FLASH FLOOD WATCH CONTINUES THROUGH TONIGHT...

AT 2 PM RADAR SHOWED THUNDERSTORMS FROM ALBERT LEA TO ROCHESTER
AND MINNESOTA CITY. THE STRONGEST THUNDERSTORMS WERE 20 MILES
NORTHEAST OF MASON CITY AND WERE MOVING NORTHEAST AT 30 MPH.

THE THUNDERSTORMS ARE EXPECTED TO MOVE TO AUSTIN AND LEROY BY
3 PM.

NO SEVERE WEATHER HAS BEEN REPORTED...LOOK FOR HEAVY RAINS AND
POSSIBLE HAIL AND DEADLY LIGHTNING FOR THE REST OF THE AFTERNOON
ALONG WITH POSSIBLE FLOODING.

KRUSE
Special weather statement, Jun 17, 2:13 PM CDT, 1 hour 41 minutes before
MNZ017>019-172000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
205 PM CDT THU JUN 17 1993

...SEVERE THUNDERSTORM WATCH UNTIL 8 PM...
...FLASH FLOOD WATCH CONTINUES THROUGH TONIGHT...

AT 2 PM RADAR SHOWED THUNDERSTORMS FROM ALBERT LEA TO ROCHESTER
AND MINNESOTA CITY. THE STRONGEST THUNDERSTORMS WERE 20 MILES
NORTHEAST OF MASON CITY AND WERE MOVING NORTHEAST AT 30 MPH.

THE THUNDERSTORMS ARE EXPECTED TO MOVE TO AUSTIN AND LERXOY BY
3 PM.

NO SEVERE WEATHER HAS BEEN REPORTED...LOOK FOR HEAVY RAINS AND
POSSIBLE HAIL AND DEADLY LIGHTNING FOR THE REST OF THE AFTERNOON
ALONG WITH POSSIBLE FLOODING.

KRUSE
Special weather statement, Jun 17, 2:42 PM CDT, 1 hour 12 minutes before
WIZ010-014-172100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
245 PM CDT THU JUN 17 1993

...SEVERE THUNDERSTORM WATCH UNTIL 800 PM...
...FLASH FLOOD WATCH FOR THIS AFTERNOON AND TONIGHT...

AT 240 PM...SHOWERS AND THUNDERSTORMS STRETCHED FROM EAU CLAIRE
ACROSS SOUTHEAST MINNESOTA AND INTO NORTH CENTRAL IOWA. THE HEAVIEST
RAINFALL IN THE LA CROSSE AREA WAS OCCURRING NEAR HATFIELD...OR 50
MILES NORTHEAST OF LA CROSSE.

THE PRECIPITATION WAS MOVING EAST AT 20 MILES AN HOUR AND WILL
PRODUCE SOME BRIEF HEAVY DOWNPOURS.  NO REPORTS OF ANY FLOODING OR
SEVERE WEATHER HAVE BEEN RECEIVED THROUGH 230 PM.  A FLASH FLOOD
WATCH REMAINS IN EFFECT THIS AFTERNOON AND TONIGHT FOR ALL OF THE
LA CROSSE AREA.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 800 PM.  GO INDOORS
WHEN THUNDERSTORMS APPROACH AND MOVE TO HIGHER GROUND IF FLOODING
IS OBSERVED.

INGRAM
Special weather statement, Jun 17, 3:05 PM CDT, 49 minutes before
MNZ018-019-172100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
305 PM CDT THU JUN 17 1993

...SEVERE THUNDERSTORM WATCH UNTIL 8 PM...
...FLASH FLOOD WATCH CONTINUES THROUGH TONIGHT...

AT 3 PM RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN AND POSSIBLE
SMALL HAIL NEAR LEROY EXTENDING TO PRESTON...RUSHFORD AND UTICA.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MPH AND ARE EXPECTED
TO BE NEAR CALEDONIA AND HOUSTON BY 4 PM.

LOOK OUT FOR FREQUENT LIGHTNING...POSSIBLE HAIL...AND VERY HEAVY
RAIN...AND MOVE INDOORS IF THREATENING WEATHER APPROACHES YOUR AREA.

KRUSE
Special weather statement, Jun 17, 3:09 PM CDT, 45 minutes before
MNZ018-019-172100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
305 PM CDT THU JUN 17 1993

...SEVERE THUNDERSTORM WATCH UNTIL 8 PM...
...FLASH FLOOD WATCH CONTINUES THROUGH TONIGHT...

AT 3 PM RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN AND POSSIBLE
SMALL HAIL NEAR LEROY EXTENDING TO PRESTON...RUSHFORD AND UTICA.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MPH AND ARE EXPECTED
TO BE NEAR CALEDONIA AND HOUSTON BY 4 PM.4

LOOK OUT FOR FREQUENT LIGHTNING...POSSIBLE HAIL...AND VERY HEAVY
RAIN...AND MOVE INDOORS IF THREATENING WEATHER APPROACHES YOUR AREA.

KRUSE
Special weather statement, Jun 17, 3:34 PM CDT, 20 minutes before
WIZ010-014-172130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
335 PM CDT THU JUN 17 1993

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

AT 335 PM...THUNDERSTORMS EXTENDED FROM BETWEEN LA CROSSE AND
EAU CLAIRE ACROSS ADJACENT AREAS OF SOUTHEAST MINNESOTA AND INTO
NORTHEAST IOWA.  THE STRONGEST STORMS IN THE LA CROSSE AREA WERE
20 MILES WEST OF LA CROSSE.  ALL STORMS WERE MOVING NORTHEAST AT
30 MILES AN HOUR.

STRONG THUNDERSTORMS WITH VERY HEAVY RAIN AND DANGEROUS LIGHTNING
WILL BE AFFECTING MUCH OF THE LA CROSSE AREA INTO THE EVENING.
THESE STORMS MAY PRODUCE STRONG WINDS AND HAIL ALSO.  A FLASH FLOOD
WATCH REMAINS IN EFFECT THROUGH TONIGHT FOR ALL OF THE LA CROSSE
AREA AND A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 800 PM.
GO INDOORS WHEN THUNDERSTORMS APPROACH AND MOVE TO HIGHER GROUND IF
FLOODING IS OBSERVED.

THOMPSON

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1993Every severe thunderstorm warning in 1993

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.