Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 8, NWS Milwaukee, WI

May 18, 1996Sauk County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at May 18, 1996, 3:18 AM CDT for Sauk County, Wisconsin. It was in force for 62 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, 3:18 AM CDT (08:18 UTC)
Expired
May 18, 1996, 4:20 AM CDT
In force
62 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Sauk County, WI

What was reported inside it

TimeReportWhereRemark
May 18, 3:20 AM CDTHail 1.75La Valle, 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, 8.3 hours before the alert went out and 189 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 KMKE 180818
SVRMKE
WIC111-180920-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
318 AM CDT SAT MAY 18 1996

THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN WI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 420 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH CENTRAL WISCONSIN

   ...SAUK COUNTY
 
NWS DOPPLER RADAR AT 315 AM CDT INDICATED A SEVERE THUNDERSTORM IN
THE EXTREME NORTHEAST CORNER OF RICHLAND COUNTY... MOVING NORHTEAST
AT 45 MPH.  THIS SEVERE STORM WILL PASS THROUGH THEH LA VALLE AREA
IN NORTHWEST SAUK COUNTY BY 330 AM.

OTHER THUNDERSTORMS... POSSIBLY BECOMING SEVERE... WILL AFFECT THE
REMAINDER OF SAUK8 COUNTY THROUGH 4AM.

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS.

KAPELA

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.