Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 7, NWS Milwaukee, WI

June 25, 1986Forest County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 25, 1986, 7:21 PM CDT for Forest County, Wisconsin. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
Jun 25, 1986, 7:21 PM CDT (00:21 UTC)
Expired
Jun 25, 1986, 8:15 PM CDT
In force
54 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Forest 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, 0.4 hours before the alert went out and 142 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 1986-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1986-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1271 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
87 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 260021
SVRMKE
WIC041-260115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE WI
721 PM CDT WED JUN 25 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 815 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

NORTHEAST WISCONSIN...FOREST

AT 710..RADAR INDICATED A POTENTIALLY SEVERE THUNDERSTORM ENTERING
FOREST COUNTY 15 MILES SOUTHEAST OF CONOVER..OR ABOUT 20 MILES
NORTHEAST OF RHINELANDER. ANOTHER WAS JUST SOUTH OF LONG LAKE..
ABOUT 20 MILES WEST-SOUTHWEST OF IRON MOUNTAIN MICHIGAN. THE
STORMS WERE MOVING SOUTHEAST AT 30 MPH. STORMS SHOULD PASS BETWEEN
CRANDOM AND LONG LAKE. AN UNCONFIRMED REPORT OF A FUNNEL CLOUD WAS
RECEIVED FROM THE SOUTHEAST CORNER OF VILAS COUNTY AT 708 PM.

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

JOHNSTON

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

Special weather statement, Jun 25, 5:23 PM CDT, 1 hour 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE, WI
515 PM CDT WED JUN 25 1986

AT 510 PM..WEATHER RADAR SHOWED A LARGE AREA OF THUNDERSTORMS OVER
NORTHERN WISCONSIN.  THE LEADING EDGE OF THESE STORMS STRETCHED FROM
NEAR IRON MOUNTAIN MICHIGAN SOUTHWESTWARD TO ANTIGO IN LANGLADE COUNTY
TO IRMA IN LINCOLN COUNTY..ABOUT 30 MILES NORTH AT WAUSAU.  THE STORMS
WERE MOVING SOUTHEAST NEAR 40 MPH.

NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS. BUT REPORTS OF
FREQUENT LIGHTNING AND HEAVY RAIN HAVE BEEN RECEIVED FROM AREAS IN
THEIR PATH.  THE LARGEST AND STRONGEST STORM APPEARS TO BE
OVER SOUTHERN FLORENCE COUNTY ABOUT 10 TO 12 MILES SOUTHWEST OF IRON
MOUNTAIN. IT IS CAPABLE OF PRODUCING VERY HEAVY RAIN POSSIBLY CAUSING
SOME LOCAL FLOODING.  SMALL HAIL AND DANGEROUS LIGHTNING ARE ALSO
POSSIBLE. PEOPLE IN FLORENCE COUNTY SHOULD BE AWARE OF THE POTENTIAL
OF THIS STORM AND TAKE PROPER PRECAUTIONS.
JOHNSTON
Special weather statement, Jun 25, 6:48 PM CDT, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE, WI
635 PM CDT WED JUN 25 1986

  ...MORE THUNDERSTORMS ARE MOVING THROUGH NORTHERN WISCONSIN...

AT 630 PM..WEATHER RADAR SHOWED A BAND OF THUNDERSTORMS MOVING THROUGH
VILAS AND FOREST COUNTIES NEAR OR JUST SOUTH OF THE PATH ANOTHER
BATCH OF STORMS FOLLOWED EARLIER.  THE NEW BAND EXTENDED FROM NEAR
PHELPS AND CONOVER IN EASTERN VILAS COUNTY TO ABOUT 10 MILES NORTH OF
LAONA IN FOREST COUNTY..HEADED TOWARD WESTERN MARINETTE COUNTY.

NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS. BUT HEAVY RAINS
FROM THESE NEW STORMS ADDED TO THE RAIN THAT FELL EARLIER MAY CAUSE
SOME LOCAL FLOODING.  SMALL HAIL..GUSTY WINDS..AND FREQUENT JLIGHTNING
ARE ALSO POSSIBLE..ALTHOUGH NO SUCH REPORTS HAVE BEEN RECEIVED AS YET.
PERSONS IN THESE AREAS SHOULD CONTINUE TO BE ON THE ALERT FOR RAPIDLY
CHANGING CONDITIONS.
JOHNSTON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 4:50 PM CDTSevere Thunderstorm WarningMKXMarathon55 min
Jun 26, 6:10 PM CDTSevere Thunderstorm WarningMKXPortage, Wood50 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.