Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 39, NWS Green Bay, WI

August 1, 1986Calumet County, Winnebago County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Aug 1, 1986, 7:16 PM CDT for Calumet County, Winnebago County, Wisconsin. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Aug 1, 1986, 7:16 PM CDT (00:16 UTC)
Expired
Aug 1, 1986, 8:00 PM CDT
In force
44 min
Issued by
NWS Green Bay, WI
Area
Whole counties

Counties Calumet County, WI, Winnebago County, WI

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.3 hours before the alert went out and 52 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 1986-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 76 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 1986-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -100 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
76 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
932 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-100 m²/s²
0-3 km storm-relative helicity
-90 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRB 020017 COR
SVRGRB
WIC015-139-020100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
716 PM CDT FRI AUG 1 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 800 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES OF

EAST CENTRAL WISCONSIN...CALUMET AND WINNEBAGO

AT 700 PM CDT RADAR INDICATED A LINE OF THUNDERSTORMS FROM CALUMET
TO BRILLION WISCONSIN MOVING TO THE EAST AT 30 MILES AN HOUR.
AT 700 PM CDT ONE HALF INCH HAIL WAS REPORTED BY THE PUBLIC IN
NORTHWEST WINNEBAGO COUNTY.

THIS STORM MAY PRODUCE DANGEROUS LIGHTNING..STRONG GUSTY WINDS..
AND ROUGH SEAS. ALL BOATERS IN THE WARNED AREA SHOULD SEEK SAFE
HEARBOR AT ONCE.

IF THREATENING WEATHER APPROACHES YOU...TAKE COVER IMMEDIATELY.
A BASEMENT..INTERIOR HALLWAY OR ROOM ON THE LOWEST FLOOR IS THE
SAFEST PLACE IN MOST BUILDINGS.
DC

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1986Every severe thunderstorm warning in 1986

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.