Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 20, NWS La Crosse, WI

June 29, 1996Monroe County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Jun 29, 1996, 5:57 PM CDT for Monroe County, Wisconsin. It was in force for 63 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 29, 1996, 5:57 PM CDT (22:57 UTC)
Expired
Jun 29, 1996, 7:00 PM CDT
In force
63 min
Issued by
NWS La Crosse, WI
Area
Whole counties

County Monroe County, WI

What was reported inside it

TimeReportWhereRemark
Jun 29, 6:20 PM CDTThunderstorm Wind 57Tunnel City, WI

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.0 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 1996-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 112 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 1996-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 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
112 J/kg
Mixed-layer CIN
-191 J/kg
Mixed-layer LCL
1147 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
256 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLSE 292258
SVRLSE
WIC081-300000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
557 PM CDT SAT JUN 29 1996
 
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL WISCONSIN
 
   ...MONROE COUNTY
 
AT 555 PM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM LOCATED
BETWEEN BANGOR AND SPARTA OR 20 MILES NORTHEAST OF LA CROSSE. THE
THUNDERSTORM WAS MOVING EAST AT 35 MPH AND CONTAINED DAMAGING WINDS OF
OVER 60 MPH.
 
THE THUNDERSTORM WILL PASS OVER SPARTA AND TOMAH BY 615 PM. THE GRAND
NATIONAL TRACTOR PULL ACTIVITIES WILL BE AFFECTED BY THIS THUNDERSTORM.
 
 
 
WINDS OF 60 MPH OR HIGHER CAN BE EXPECTED WITH THIS STORM ALONG
WITH DEADLY LIGHTNING. MOVE INSIDE A STRONG BUILDING SUCH AS YOUR
HOME AND REMAIN THERE UNTIL THE STORM PASSES.
 
RACY

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 29, 2:30 PM CDT, 3 hours 27 minutes before
WIZ017-029-032>034-041>044-053>055-061-292300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
230 PM CDT SAT JUN 29 1996

...HIGH HEAT AND HUMIDITY EXPECTED TODAY...

HIGH HEAT AND HUMIDITY CAN BE EXPECTED FOR THE REST OF THE AFTERNOON.
HIGH TEMPERATURES THIS AFTERNOON ARE GOING TO RANGE FROM THE LOWER 90S
IN NORTH CENTRAL WISCONSIN...WITH MID TO UPPER 90S IN THE WEST CENTRAL
AND SOUTHWEST PARTS OF THE STATE.

THESE TEMPERATURES COMBINED WITH HIGH HUMIDITY LEVELS WILL RESULT IN
HEAT INDICES OF 100 TO 105 IN THE NORTHERN MOST AREAS.  HEAT INDICES
FOR THE CENTRAL AND SOUTHERN AREAS ARE GOING TO BE NEAR OR EXCEED 105
FOR THE REMAINDER OF THE AFTERNOON.  AT 2 PM THE HEAT INDEX AT THE
LA CROSSE AIRPORT WAS 114.

PERSONS THAT ARE GOING TO BE OUTSIDE SHOULD LESSEN THEIR ACTIVITY...
DRINK PLENTY OF LIQUIDS...WEAR LIGHT COLORED CLOTHING AND SEEK SHADE
WHEN EVER POSSIBLE.  ANY STRENUOUS OUTDOOR ACTIVITY SHOULD BE AVIODED
THIS AFTERNOON.

RRS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 3:35 AM CDTSevere Thunderstorm WarningARXBuffalo40 min
Jun 29, 3:35 PM CDTSevere Thunderstorm WarningARXBuffalo40 min
Jun 29, 4:25 PM CDTSevere Thunderstorm WarningARXClark, Jackson65 min
Jun 29, 6:10 PM CDTSevere Thunderstorm WarningARXVernon65 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1996Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.