Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 40, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Sep 26, 1986, 6:38 PM CDT for Clark County, Wisconsin. It was in force for 37 min.
The area
The counties it named.
The facts
- Issued
- Sep 26, 1986, 6:38 PM CDT (23:38 UTC)
- Expired
- Sep 26, 1986, 7:15 PM CDT
- In force
- 37 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, 11.6 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.
- Mixed-layer CAPE
- 1710 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 734 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMKE 262338 SVRMKE WIC019-270015- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE WI 638 PM CDT FRI SEP 26 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 715 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF CENTRAL WISCONSIN...CLARK AT 625 PM CDT...WEATHER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM OWEN IN NORTHEAST CLARK..39 MILES EAST OF EAU CLAIRE SOUTH THROUGH GREENWOOD..THEN SOUTHWEST INTO SOUTHWEST CLARK COUNTY. AT 550 PM..THE PUBLIC REPORTED STRONG WINDS TAKING THE ROOF OFF OF A HOME..2 MILES SOUTH OF THORP. SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING. TORNADOES CAN ALSO DEVELOP FROM SEVERE THUNDERSTORMS. IF THREATENING WEATHER APPROACHES...TAKE SHELTER IMMEDIATELY. GARCIA
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, Sep 26, 3:10 PM CDT, 3 hours 28 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 310 PM CDT FRI SEP 26 1986 ...THUNDERSTORMS REDEVELOPING EXTREME SOUTH WISCONSIN... AN UNRULY ATMOSPHERE IS THROWING ANOTHER CURVE AT THE FORECASTER AND SOUTHERN WISCONSIN. AT 305 PM...THUNDERSTORMS ARE REDEVELOPING IN THE COUNTIES OF WALWORTH AND GREEN BORDERING ILLINOIS. THE SHOWERS ARE SMALL BUT ARE DRIFTING EAST NORTHEAST AND WILL PROBABLY THROW SOME MORE RAIN ON KENOSHA AND RACINE COUNTY BY 430PM. NO RENEWED THUNDERSTORM ACTIVITY IS EXPECTED IN MILWAUKEE OR POINTS NORTH THROUGH AT LEAST 5 OR 6PM. DRAG
Special weather statement, Sep 26, 4:07 PM CDT, 2 hours 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE WI
410 PM CDT FRI SEP 26 1986
...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF THE NORTHWEST HALF
OF WISCONSIN UNTIL 10 PM THIS FRIDAYY EVENING...
AT 4PM RADAR INDICATED AN AREA OF STRONG THUNDERSTORMS IN DUNN AND
PEPIN COUNTIES MOVING EAST AND SHOULD ENTER TAYLOR AND CLARK COUNTIES
IN 2 OR 3 HOURS. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS.
KOCHISSpecial weather statement, Sep 26, 5:05 PM CDT, 1 hour 33 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 500 PM CDT FRI SEP 26 1986 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF THE NORTHWEST AND NORTH CENTRAL WISCONSIN UNTIL 10 PM TONIGHT... AT 455 PM...RADAR SHOWED AN AREA OF INTENSE THUNDERSTORMS ACROSS PARTS OF EAU CLAIRE AND CHIPPEWA COUNTIES IN NORTHWEST WISCONSIN. THESE STORMS WERE MOVING NORTHEAST AT 30 MPH AND MAY ENTER THE WESTERN SECTIONS OF CLARK AND TAYLOR COUNTIES AFTER 515 PM CDT. ALSO..MORE THUNDERSTORMS HAD DEVELOPED IN PRICE COUNTY OF NORTH CENTRAL WISCONSIN. VERY HEAVY RAIN..STRONG GUSTY WINDS..FREQUENT AND DANGEROUS LIGHTNING STIKES AND SOME HAIL WILL BE POSSIBLE WITH THESE STORMS. ADDITIONALLY..CONDITIONS ARE FAVORABLE FOR MORE THUNDERSTORMS TO DEVELOP AND WORK THEIR WAY DEEPER INTO NORTH CENTRAL WISCONSIN INTO THE EVENING HOURS. STAY ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE PREPARED TO SEEK SAFE SHELTER IF THREATNING WEATHER APPROACHES. STUREY
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 10:13 AM CDT | Flash Flood Warning | MKX | Ozaukee | 107 min |
| Sep 26, 6:54 PM CDT | Severe Thunderstorm Warning | MKX | Marathon | 51 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.