Alert archive / Wisconsin / Tornado Warnings in 1987

Tornado Warning 3, NWS Green Bay, WI

July 7, 1987Adams County, Juneau County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Jul 7, 1987, 4:58 PM CDT for Adams County, Juneau County, Wisconsin. It was in force for 32 min.

The area

The counties it named.

The facts

Issued
Jul 7, 1987, 4:58 PM CDT (21:58 UTC)
Expired
Jul 7, 1987, 5:30 PM CDT
In force
32 min
Issued by
NWS Green Bay, WI
Area
Whole counties

Counties Adams County, WI, Juneau 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, 10.0 hours before the alert went out and 158 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 1987-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 1987-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
2 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
577 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
30 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 KMSN 072158
TORMSN
WIC001-057-072230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE MADISON WI
458 PM CDT TUE JUL 7 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

SOUTH CENTRAL WISCONSIN...ADAMS AND JUNEAU

AT 452 PM CDT NUMEROUS FUNNEL CLOUDS REPORTED BY POLICE AND PUBLIC
WEST OF NEW LISBON MOVING EAST AT ABOUT 30 MPH.  PERSONS IN THE
MAUSTON AREA SHOULD TAKE IMMEDIATE COVER.. THIS STORM SHOULD PASS
CLOSE TO LYNDON STATION AND HEADING TOWARDS THE ADAMS FRIENDSHIP
AREAS.

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.  GET UNDER SOMETHING STURDY.

THIS IS AN EXTREMELY DANGEROUS STORM.  PEOPLE IN THE PATH OF THIS
TORNADO SHOULD SEEK SHELTER IN A BASEMENT OR SMALL INTERIOR ROOM
ON THE LOWEST FLOOR.  ABANDON CARS AND MOBILE HOMES FOR A REINFORCED
BUILDING.

ADDISON

Nearby

Tornado Warnings in Wisconsin, 1987Every tornado warning in 1987Tornadoes in 1987

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.