Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 19, NWS La Crosse, WI

August 19, 1994Crawford County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Aug 19, 1994, 2:42 PM CDT for Crawford County, Wisconsin. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Aug 19, 1994, 2:42 PM CDT (19:42 UTC)
Expired
Aug 19, 1994, 3:45 PM CDT
In force
63 min
Issued by
NWS La Crosse, WI
Area
Whole counties

County Crawford County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.7 hours before the alert went out and 266 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 1994-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 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 1994-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939Sfc1 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
15 J/kg
Mixed-layer CIN
-245 J/kg
Mixed-layer LCL
690 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Aug 19, 10:30 AM CDT, 4 hours 12 minutes before
MNZ077-084-086-093-094-191630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
1029 AM CDT FRI AUG 19 1994

...THUNDERSTORMS PRODUCING HEAVY RAINS NEAR ALBERT LEA AND AUSTIN...

AT 1020 AM...RADAR INDICATED THE STRONGEST STORMS JUST WEST OF CLARKS
GROVE...NEAR GLENVILLE AND AUSTIN.  THERE WAS ALSO ANOTHER STORM JUST
SOUTH OF FARIBAULT.  THESE STORMS WERE MOVING TO THE EAST AT 25 MILES
AN HOUR.

VERY HEAVY DOWNPOURS AND FREQUENT DAMAGING LIGHTNING ARE LIKELY WITH
THE STORMS.

EXPECT THE STORMS TO SPREAD INTO WEST CONCORD...HAYFIELD...AND LYLE
TOWARD 11 AM.  THE STORMS SHOULD THEN REACH PINE ISLAND...SPRING
VALLEY..AND LE ROY TOWARD 1130 AM.

REMEMBER...LIGHTNING MAY STRIFKE SOME MILES AWAY FROM THE PARENT
CLOUD.  PRECAUTIONS SHOULD BE TAKEN EVEN THOUGH THE THUNDERSTORM IS
NOT DIRECTLY OVERHEAD.

RLT
Special weather statement, Aug 19, 12:51 PM CDT, 1 hour 51 minutes before
WIZ032>034-041-042-053-054-191845-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1255 PM CDT FRI AUG 19 1994

...STRONG THUNDERSTORMS NORTH OF LA CROSSE...

AT 1255 PM...STRONG THUNDERSTORMS WITH HEAVY RAIN...DANGEROUS
LIGHTNING AND POSSIBLY SMALL HAIL WERE LOCATED 60 MILES NORTH
OF LA CROSSE NEAR MAXVILLE AND MONDOVI.  THE STORMS WERE MOVING
SOUTHEAST AT 30 MILES AN HOUR AND WILL BE AFFECTING THE MONDOVI
AND NELSON AREAS THROUGH 130 PM.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 6 PM FOR AREAS
SOUTH OF LA CROSSE...HOWEVER STRONG THUNDERSTORMS ARE EXPECTED
ABOUT ANYWHERE AROUND THE AREA THIS AFTERNOON.  PEOPLE ARE
ADVISED TO KEEP LISTENING FOR THE LATEST WEATHER INF^ORMATION ON
RADIO...TV...OR WEATHER RADIO.  GO INDOORS IF A STORM APPROACHES.

THOMPSON
Special weather statement, Aug 19, 12:55 PM CDT, 1 hour 47 minutes before
WIZ032>034-041-042-053-054-191845-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1255 PM CDT FRI AUG 19 1994

...STRONG THUNDERSTORMS NORTH OF LA CROSSE...

AT 1255 PM...STRONG THUNDERSTORMS WITH HEAVY RAIN...DANGEROUS
LIGHTNING AND POSSIBLY SMALL HAIL WERE LOCATED 60 MILES NORTH
OF LA CROSSE NEAR MAXVILLE AND MONDOVI.  THE STORMS WERE MOVING
SOUTHEAST AT 30 MILES AN HOUR AND WILL BE AFFECTING THE MONDOVI
AND NELSON AREAS THROUGH 130 PM.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 6 PM FOR AREAS
SOUTH OF LA CROSSE...HOWEVER STRONG THUNDERSTORMS ARE EXPECTED
ABOUT ANYWHERE AROUND THE AREA THIS AFTERNOON.  PEOPLE ARE
ADVISED TO KEEP LISTENING FOR THE LATEST WEATHER INFORMATION ON
RADIO...TV...OR WEATHER RADIO.  GO INDOORS IF A STORM APPROACHES.

THOMPSON
Special weather statement, Aug 19, 1:01 PM CDT, 1 hour 41 minutes before
WIZ032>034-041-042-053-054-191900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
105 PM CDT FRI AUG 19 1994

...STRONG THUNDERSTORMS SOUTH OF LA CROSSE...

AT 105 PM...A STRONG THUNDERSTORM WITH HEAVY RAIN...DANGEROUS
LIGHTNING AND POSSIBLY SMALL HAIL WAS LOCATED 40 MILES SOUTH OF LA
CROSSE NEAR LYNXVILLE.  THE STORMS WAS MOVING SOUTHEAST AT 30 MILES
AN HOUR AND WILL BE AFFECTING THE LYNXVILLE AREA THROUGH 130 PM.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 6 PM FOR AREAS
SOUTH OF LA CROSSE...HOWEVER STRONG THUNDERSTORMS ARE EXPECTED
ABOUT ANYWHERE AROUND THE AREA THIS AFTERNOON.  PEOPLE ARE
ADVISED TO KEEP LISTENING FOR THE LATEST WEATHER INFORMATION ON
RADIO...TV..~.OR WEATHER RADIO.  SHOULD A THUNDERSTORM THREATEN...
GO INDOORS AND STAY THERE UNTIL IT PASSES.

THOMPSON
Special weather statement, Aug 19, 1:05 PM CDT, 1 hour 37 minutes before
WIZ032>034-041-042-053-054-191900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
105 PM CDT FRI AUG 19 1994

...STRONG THUNDERSTORMS SOUTH OF LA CROSSE...

AT 105 PM...A STRONG THUNDERSTORM WITH HEAVY RAIN...DANGEROUS
LIGHTNING AND POSSIBLY SMALL HAIL WAS LOCATED 40 MILES SOUTH OF LA
CROSSE NEAR LYNXVILLE.  THE STORMS WAS MOVING SOUTHEAST AT 30 MILES
AN HOUR AND WILL BE AFFECTING THE LYNXVILLE AREA THROUGH 130 PM.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 6 PM FOR AREAS
SOUTH OF LA CROSSE...HOWEVER STRONG THUNDERSTORMS ARE EXPECTED
ABOUT ANYWHERE AROUND THE AREA THIS AFTERNOON.  PEOPLE ARE
ADVISED TO KEEP LISTENING FOR THE LATEST WEATHER INFORMATION ON
RADIO...TV...OR WEATHER RADIO.  SHOULD A THUNDERSTORM THREATEN...
GO INDOORS AND STAY THERE UNTIL IT PASSES.

THOMPSON
Special weather statement, Aug 19, 1:45 PM CDT, 57 minutes before
MNZ079-088-096-191950-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
145 PM CDT FRI AUG 19 1994

...A STRONG THUNDERSTORM IN THE WABASHA AREA...

AT 140 PM...RADAR SHOWED A STRONG THUNDERSTORMS JUST TO THE EAST OF
WABASHA.  IT WAS MOVING TO THE SOUTHEAST...ALONG THE MISSISSIPPI RIVER
AT 25 MILES AN HOUR.

EXPECT HEAVY DOWNPOURS AND FREQUENT LIGHTNING NEAR ALMA AND WEAVER
BETWEEN 200 AND 215 PM.  THIS STORM SHOULD REACH MINNESOTA CITY TOWARD
230 PM.

OTHERWISE...MORE SHOWERS AND THUNDERSTORMS STILL LINGER IN EXTREME
SOUTHEAST CORNER...NEAR HARMONY...CALEDONIA...AND LA CRESCENT.  EXPECT
THESE STORMS TO SLIDE TO THE JUST SOUTH OF EAST ACROSS THE MISSISSIPPI
RIVER TOWARD 3 PM.

BOATERS ON THE MISSISSIPPI RIVER SHOULD HEAD FOR SHORE WHEN SPOTTING
TOWERING THUNDERHEADS AND DAMAGING LIGHTNING...ESPECIALLY IN THE
WABASHA AREA.

RLT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 9:44 AM CDTSevere Thunderstorm WarningARXVernon46 min
Aug 19, 1:25 PM CDTSevere Thunderstorm WarningARXCrawford35 min
Aug 19, 1:53 PM CDTSevere Thunderstorm WarningARXBuffalo52 min
Aug 19, 2:14 PM CDTSevere Thunderstorm WarningARXTrempealeau61 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.