Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 4, NWS La Crosse, WI

May 18, 1996Monroe County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at May 18, 1996, 2:13 AM CDT for Monroe County, Wisconsin. It was in force for 47 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
May 18, 1996, 2:13 AM CDT (07:13 UTC)
Expired
May 18, 1996, 3:00 AM CDT
In force
47 min
Issued by
NWS La Crosse, WI
Area
Whole counties

County Monroe County, WI

What was reported inside it

TimeReportWhereRemark
May 18, 2:20 AM CDTHail 0.88Leon, 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 00:00Z, 7.2 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 00:00Z on 1996-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1348 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 1996-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 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
1348 J/kg
Mixed-layer CIN
-527 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
432 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLSE 180713
SVRLSE
WIC081-180800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
213 AM CDT SAT MAY 18 1996
 
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL WISCONSIN
 
   ...MONROE COUNTY
 
AT 211 AM...RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTH OF LA
CROSSE MOVING NORTHEAST AT 50 MPH. THE STORM WILL MOVE BETWEEN CASHTON
AND SPARTA BY 245 AM.
 
THOSE IN THE PATH OF THIS STORM SHOULD PREPARE FOR HAIL IN EXCESS OF 3/4
INCHES IN DIAMETER.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING. REMAIN INSIDE A STRONG BUILDING
PREFERABLY ON THE LOWEST FLOOR AND EXPECT DAMAGING WINDS AND HAIL.
 
KING

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 1:55 AM CDTSevere Thunderstorm WarningARXLa Crosse, Vernon65 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.