Alert archive / Wisconsin / Tornado Warnings in 1986

Tornado Warning 8, NWS Green Bay, WI

July 18, 1986Calumet County, Winnebago County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Jul 18, 1986, 8:50 PM CDT for Calumet County, Winnebago County, Wisconsin. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jul 18, 1986, 8:50 PM CDT (01:50 UTC)
Expired
Jul 18, 1986, 9:45 PM CDT
In force
55 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

Peoria Regional, IL (KPIA), launched 00:00Z, 1.8 hours before the alert went out and 391 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, Peoria Regional, IL at 00:00Z on 1986-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1517 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, Peoria Regional, IL at 00:00Z on 1986-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
1517 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
1391 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRB 190150
TORGRB
WIC015-139-190245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
850 PM CDT FRI JUL 18 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 945 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

EAST CENTRAL WISCONSIN...NORTHERN CALUMET AND NORTHERN WINNEBAGO

A TORNADO WARNING IS IN EFFECT UNTIL 945 PM CDT FRI JUL 19 1986
FOR NORTHERN WINNEBAGO AND NORTHERN CALUMET COUNTY OF WI.
PUBLIC REPORTS HAVE BEEN RECEIVED OF A A FUNNEL CLOUD AND
POSSIBLE TORNADO ON COMMERCIAL STREET IN NEENAH WI.  RADAR
INDICATES VERY INTENSE THUNDERSTORM ACTIVITY IN THIS AREA
MOVING EAST AT 30 MPH.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS..LARGE HAIL..AND DEADLY
LIGHTNING. TORNADOES CAN ALSO DEVELOP FROM SEVERE THUNDERSTORMS.
IF THREATENING WEATHER APPROACHES TAKE SHELTER IMMEDIATELY.

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

Nearby

Tornado Warnings in Wisconsin, 1986Every tornado warning in 1986Tornadoes 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.