Alert archive / Wisconsin / Tornado Warnings in 1986

Tornado Warning 4, NWS Milwaukee, WI

July 4, 1986Oneida County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jul 4, 1986, 8:38 PM CDT for Oneida County, Wisconsin. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
Jul 4, 1986, 8:38 PM CDT (01:38 UTC)
Expired
Jul 4, 1986, 9:15 PM CDT
In force
37 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Oneida 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, 1.6 hours before the alert went out and 176 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 1986-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2385 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 1986-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 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
2385 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
1275 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.6
Supercell composite
7.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 050138
TORMKE
WIC085-050215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE WI
838 PM CDT FRI JUL 4 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 915 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

NORTH CENTRAL WISCONSIN...ONEIDA

AT 835 PM CDT A TORNADO TOUCHED DOWN JUST SOUTHEAST OF HAZELHURST
OR 52 MILES NORTH OF WAUSAU. THE STORM AND TORNADO ARE MOVING
EAST AT 30 MPH TOWARD THE LAKE TOMAHAWK AREA. THIS TORNADO
WARNING REPLACES THE SEVERE THUNDERSTORM WARNING ISSUED FOR
ONEIDA COUNTY.

IF THREATENING WEATHER APPROACHES YOU...TAKE COVER IMMEDIATELY.
A BASEMENT..INTERIOR HALLWAY OR ROOM TON THE LOWEST FLOOR IS THE
SAFEST PLACE IN MOST BUILDINGS. GET UNDER SOMETHING STURDY.

TZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 7:03 PM CDTSevere Thunderstorm WarningMKXTaylor57 min
Jul 4, 7:11 PM CDTSevere Thunderstorm WarningMKXVilas34 min
Jul 4, 7:41 PM CDTTornado WarningMKXOneida34 min
Jul 4, 7:52 PM CDTSevere Thunderstorm WarningMKXVilas38 min
Jul 4, 8:33 PM CDTSevere Thunderstorm WarningMKXOneida42 min

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.