Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 33, NWS Milwaukee, WI

July 11, 1987Clark County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 11, 1987, 12:07 PM CDT for Clark County, Wisconsin. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Jul 11, 1987, 12:07 PM CDT (17:07 UTC)
Expired
Jul 11, 1987, 1:00 PM CDT
In force
53 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Clark 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, 5.1 hours before the alert went out and 201 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 1987-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2044 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 1987-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939Sfc1 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
2044 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
563 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
50 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 111707
SVRMKE
WIC019-111800-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE WI
1207 PM CDT SAT JUL 11 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 100 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

CENTRAL WISCONSIN...CLARK

WEATHER RADAR SHOWS AN AREA OF SEVERE THUNDERSORMS AT 1200 NOON CDT
WAS MOVING INTO EXTREME WESTERN CLARK COUNTY. THS STORNGEST STORM
WAS LOCATED NEAR FAIRCHILD 25 SOUTHEAST OF EAU CLAIRE IN EAU CLAIRE
COUNTY. THE STORMS SHOULD BE MOVING TO THE EAST AROUND 30 TO 40 MPH
AND SHOULD APPROACH HUMBIRD...35 SOUTHEAST OF EAU CLAIRE BETWEEN
1215 AND 1240PMCDT AND NEILLSVILLE...50 SOUTHWEST OF WAUSAU
AROUND 1230PM CDT.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS..LARGE HAIL..AND DEADLY
LIGHTNING. TORNADOES CAN ALSO DEVELOP FROM SEVERE THUNDERSTORMS.
IF THREATENING WEATHER APPROACHES..TAKE SHELTER IMMEDIATELY.

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 11, 9:35 AM CDT, 2 hours 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE WI
930 AM CDT SAT JUL 11 1987

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 3 PM CDT FOR MUCH OF
   NORTHERN WISCONSIN...

OVERNIGHT THUNDERSTORMS FROM MINNESOTA HAVE CONTINUED INTO THE DAYTIME
HOURS AND HAVE NOW PUSHED INTO WESTERN WISCONSIN. AT 910 AM...WEATHER
RADAR SHOWED THE STORMS PUSHING THROUGH BARRON AND INTO WASHBURN AND
SAWYER COUNTIES OF NORTHWEST WISCONSIN.

THE LINE IS BULGING TO THE EAST NORTHEAST AT ABOUT 45 MILES AN HOUR.
THE LINE IS MOVING INTO VERY FAVORABLE WEATHER CONDITIONS FOR FURTHER
DEVELOPMENT AND AT ITS CURRENT SPEED OF MOVEMENT WOULD PUSH INTO PRICE
COUNTY BETWEEN 1000 AND 1100 AM CDT.

THESE STORMS HAVE HAD A HISTORY OF STRONG GUSTY DAMAGING WINDS. EARLIER
THIS MORNING AS THE LINE PUSHED THROUGH GRANTSBURG..70 MILES NORTHEAST
OF MINNEAPOLIS..IN BURNETT COUNTY TREES WERE DOWNED.

THESE STORMS ARE VERY FAST MOVING..DANGEROUS..AND SHOULD BE MONITORED
CLOSELY.

MORRIS
Special weather statement, Jul 11, 10:26 AM CDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE WI
1025 AM CDT SAT JUL 11 1987

...THUNDERSTORMS ARE MOVING INTO PRICE COUNTY...

AT 1015 AM CDT...WEATHER RADAR INDICATED THUNDERSTORMS WERE MOVING INTO
WESTERN PRICE COUNTY. THESE THUNDERSTORMS WERE WEAKER NOW THAN WHEN THEY
PUSHED THROUGH WASHBURN AND SAWYER COUNTIES BUT STILL CONTAINED SOME
MODERATE TO HEAVY RAINS.

THESE WEAKER STORMS WERE MOVING TO THE EAST NORTHEAST AT ABOUT@ 40 MILES
AN HOUR AND WILL BE MOVING THROUGH MAINLY NORTHERN PRICE COUNTY...IN-
CLUDING THE TOWNS OF PARK FALLS AND PHILLIPS DURING THE NEXT 30 MINUTES
OR SO.

MORRIS
Special weather statement, Jul 11, 11:46 AM CDT, 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE WI
1140 AM CDT SAT JUL 11 1987

...SEVERE THUNDERSTORM WATCH 361 IN EFFECT FOR A LARGE PORTION OF
CENTRAL AND NORTHEN WISCONSIN...

AT 1040 AM WEATHER RADAR SHOWS A LINE OF INTEMSE THUNDERTSORMS
FROM NEAR STANLEY IN CHIPPEWA COUNTY THROUGH EAU CLAIRE COUNTY
SOUTHWESTWARD THROUGH BUFFALO COUNTY. THESE STORMS WERE MOVING TO
THE EAST NORHEAST AT AROUND 40MPH AND WILL BE MOVING INTO TAYLOR
AND CLARK COUNTIES BETWEEN NOON AND100PM.

THESE STORMS COULD PRODUCE VEARY HEAVY RAINS...LARGE HAIL DAMAGING
WINDS AND HAIL. IF THREATENING WEATHER APPROACHES BE PREPARED TO
SEEK SHELTER.
SCAFFIDI
Special weather statement, Jul 11, 11:52 AM CDT, 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE WI
1150 AM CDT SAT JUL 11 1987

...INTENSE THUNDERSTORMS MOVING INTO NORTHCENTRAL WISCONSIN...

AT 1147 AM CDT...WEATHER RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS
MOVING INTO WESTERN TAYLOR AND WESTERN CLARK COUNTIES OF NORTHCENTRAL
WISCONSIN. THE LINE STRETCHED FROM NEAR THE TOWN OF DONALD IN TAYLOR
COUNTY...45 MI NORTHEAST OF EAU CLAIRE TO AROUND HUMBIRD IN WESTERN
CLARK COUNTY...36 MI SOUTHEAST OF EAU CLAIRE. NO SEVERE WEATHER HAS
BEEN REPORTED WITH THESE STORMS HOWEVER...STRONG GUSTY WINDS...HAIL AND
HEAVY RAINS ARE POSSIBLE.

THE STORMS WERE MOVING EAST NORTHEAST AT AROUND 40 MPH AND WILL BE
APPROACHING WESTERN LINCOLN...MARATHON AND WOOD COUNTIES BETWEEN 1230 PM
AND 1 PM.

PERSONS IN THE PATH OF THESE STORMS SHOULD STAY ALERT FOR RAPIDLY
CHANGING CONDITIONS AND BE PREPARED TO SEEK SAFE SHELTER.

KOCHIS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 2:12 PM CDTSevere Thunderstorm WarningMKXLanglade28 min
Jul 11, 2:12 PM CDTSevere Thunderstorm WarningMKXFlorence, Forest48 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1987Every severe thunderstorm warning 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.