Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 13, NWS Green Bay, WI

June 19, 1986Marquette County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jun 19, 1986, 8:35 PM CDT for Marquette County, Wisconsin. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jun 19, 1986, 8:35 PM CDT (01:35 UTC)
Expired
Jun 19, 1986, 9:15 PM CDT
In force
40 min
Issued by
NWS Green Bay, WI
Area
Whole counties

County Marquette 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 127 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 1986-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1450 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 1986-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
1450 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
915 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSN 200135
SVRMSN
WIC077-200215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MADISON WI
835 PM CDT THU JUN 19 1986

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

SOUTH CENTRAL WISCONSIN...MARQUETTE

AT 825 PM CDT A SEVERE THUNDERSTORM WAS NOTED ON RADAR 25 MILES
NORTH OF MONTELLO MOVINT THE SOUTH SOUTHEAST AT ABOUT 35 MPH.

PERSONS IN MARQUETTE COUNTY SHOULD TAKE NECESSARY PRECAUSIONS FOR
SAFETY.  THIS SHOULD PASS THROUGH THE MONTELLO AREA.

A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS...LARGE HAIL...AND
DANGEROUS LIGHTNING. LOCALLY HEAVY RAINFALL FROM A SEVERE
THUNDERSTORM MAY TRIGGER FLASH FLOODING IN LOW LYING OR URBAN AREAS.
IF THREATENING WEATHER APPROACHES SEEK SAFE SHELTER.

 ADDISON

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jun 19, 8:07 PM CDT, 28 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY, WI
805 PM THU JUN 19 1986

THE FOLLOWING INFORMATION WAS RECEIVED AT THIS OFFICE DURING THE
SEVERE WEATHER PERIOD THIS EVENING

ALL TIMES ARE CENTRAL DAYLIGHT

AT 607 PM RECEIVED A REPORT OF ONE TO ONE HALF INCH HAIL SOUTH OF
APPLETON IN EXTREME NORTH WEST CALUMET COUNTY.

AT 638 PM RECEIVED A REPORT FROM HAM RADIO OPERATOR OF THREE QUARTER
INCH HAIL AT HILBERT IN CENTRAL CALUMET COUNTY.

SEVERE THUNDERSTORM WARNING ISSUED AT 611 PM CDT FOR CALUMET COUNTY
UNTIL 715 PM.
DC

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:55 PM CDTSevere Thunderstorm WarningGRBGreen Lake, Waushara35 min

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.