Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 14, NWS Milwaukee, WI

July 4, 1986Vilas County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 4, 1986, 7:11 PM CDT for Vilas County, Wisconsin. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Jul 4, 1986, 7:11 PM CDT (00:11 UTC)
Expired
Jul 4, 1986, 7:45 PM CDT
In force
34 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Vilas 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, 0.2 hours before the alert went out and 207 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

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Jul 4, 5:56 PM CDT, 1 hour 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE, WI
556 PM CDT FRI JUL 04 1986

THUNDERSTORMS ARE DEVELOPING RAPIDLY IN NORTHWEST WISCONSIN. THESE
STORMS ARE GROWING IN TAYLOR COUNTY AND EXTEND BACK TOWARDS EAU CLAIRE
..IN EAU CLAIRE COUNTY. MOVEMENT OF THE STORMS WAS TO THE EAST NORTH-
EAST AT 30 MILES AN HOUR.

PERSONS IN NORTHWEST WISCONSIN..ESPECIALLY IN TAYLOR CHIPPEWA AND EAU
CLAIRE COUNTIES..SHOULD KEEP AN EYE TO THE SKY FOR THE 1APPROACH OF
THESE STORMS. HEAVY RAIN..HAIL..GUSTY WINDS..AND DANGEROUS LIGHTNING
MAY ACCOMPANY THESE STORMS AS THEY MOVE TO THE EAST.

MORRIS
Special weather statement, Jul 4, 6:41 PM CDT, 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE, WI
640 PM CDT FRI JUL 04 1986

     ...THUNDERSTORMS DEVELOPING RAPIDLY IN NORTHERN WISCONSIN...

AT 635 PM CDT WEATHER RADARS INDICATED RAPID DEVELOPMENT OF SHOWERS AND
THUNDERSTORMS ACROSS NORTHERN WISCONSIN.

THE STRONGEST THUNDERSTORM WAS LOCATED 13 MILES SOUTHEAST OF RHINELANDER
NEAR THE MONICO AREA. THIS STORMS IS MOVING EAST NORTHEAST AT 30 MPH AND
WILL BE ENTERING WESTERN FOREST COUNTY AND THE CRANDON AREA BY 700 PM
CDT.

STRONG WINDS...HAIL AND BRIEF HEAVY RAIN ARE QUITE POSSIBLE WITH THIS
AND OTHER THUNDERSTORMS PRESENTLY OCCURING OVER NORTHERN WISCONSIN.

PERSONS SHOULD KEEP AN EYE TO THE SKY FOR THE APPROACH OF THESEY STORMS
AS THEY MAY ALSO CONTAIN DANGEROUS LIGHTNING. IN ADDITION...SEVERE
THUNDERSTORM WATCH NUMBER 333 CONTINUES IN EFFECT UNTIL 100 AM THIS
SATURDAY MORNING FOR MUCH OF CENTRAL AND NORTHEAST WISCONSIN.
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, 7:41 PM CDTTornado WarningMKXOneida34 min
Jul 4, 7:52 PM CDTSevere Thunderstorm WarningMKXVilas38 min
Jul 4, 8:33 PM CDTSevere Thunderstorm WarningMKXOneida42 min
Jul 4, 8:38 PM CDTTornado WarningMKXOneida37 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.