Alert archive / Wisconsin / Tornado Warnings in 1986

Tornado Warning 5, NWS Milwaukee, WI

July 11, 1986Jefferson County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jul 11, 1986, 5:35 PM CDT for Jefferson County, Wisconsin. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jul 11, 1986, 5:35 PM CDT (22:35 UTC)
Expired
Jul 11, 1986, 6:15 PM CDT
In force
40 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Jefferson 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 12:00Z, 10.6 hours before the alert went out and 171 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 1986-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 1986-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
3 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
748 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
128 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 KMKE 112235
TORMKE
WIC055-112315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE WI
535 PM CDT FRI JUL 11 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 615 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

SOUTHEAST WISCONSIN...JEFFERSON

AT 530 PM CDT...THE DANE COUNTY SHERIFF REPORTED NUMEROUS FUNNEL
CLOUDS IN EASTERN DANE COUNTY MOVING EAST SOUTHEAST AT 30 MPH.
THE FUNNEL CLOUDS ARE EXPECTED TO TOUCH DOWN AGAIN IN NORTHWEST
JEFFERSON COUNTY.

IF THREATENING WEATHER APPROACHES YOU..TAKE COVER IMMEDIATELY.
IF IN A MOBILE HOME OR VEHICLES...LEAVE THEM AND GO TO MORE
SUBSTANTIAL SHELTER,  IF OUTDOORS..WITH NO SHELTER AVAILABLE..LIE
FLAT IN A NEARBY DITCH AND SHIELD HEAD WITH ARMS.

GARCIA

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.