Alert archive / Wisconsin / Flash Flood Warnings in 1986

Flash Flood Warning 10, NWS Milwaukee, WI

September 22, 1986Kenosha County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Sep 22, 1986, 7:39 PM CDT for Kenosha County, Wisconsin. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Sep 22, 1986, 7:39 PM CDT (00:39 UTC)
Expired: Sep 22, 1986, 11:00 PM CDT
In force: 3 hr
Issued by: NWS Milwaukee, WI
Area: Whole counties

County Kenosha 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

Peoria Regional, IL (KPIA), launched 00:00Z, 0.7 hours before the alert went out and 257 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1591 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 1097 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 230039
FFWMKE
WIC059-230400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE WI
739 PM CDT MON SEP 22 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 1100 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

SOUTHEAST WISCONSIN...KENOSHA

AT 720PM..THE KENOSHA COUNTY SHERIFF REPORTS MANY ROADS FLOODED
BUT STILL PASSABLE IN KENOSHA COUNTY. RADAR AT 733PM SHOWS VERY
HEAVY RAINS EXTEND WEST FROM SOUTHERN KENOSHA COUNTY TO SOUTHEAST
ROCK COUNTY. THEYRE MOVING DUE EAST AND WE EXPECT EXCESSIVE RAINFALL
WITH TOTALS OF 3 POSSIBLY 4 INCHES IN A FEW PLACES IN EXTREME
SOUTHERN KENOSHA COUNTY BY THE TIME THE RAIN TAPERS OFF LATE THIS
EVENING. WIDESPREAD STREET AND BASEMENT FLOODING IS ANTICIPATED IN
KENOSHA COUNTY EARLY TONIGHT WITH SOME ROAD WASHOUTS AND FLOODED
CREEKS. THIS IS DANGEROUS SITUATION AND ALL INTERESTS IN KENOSHA
SHOULD MONITOR LATER STATEMENTS AND PREPARE FOR FLOODING..ESPECIALLY
IF YPU LIVE NEAR CREEKS/STREAMS OR FLOOD PRONE AREAS. THE RAIN
WILL NOT LET UP BEFORE 830PM TONIGHT.

A FLASH FLOOD WARNING MEANS FLOODING HAS BEEN REPORTED OR IS
IMMINENT. TAKE NECESSARY PRECAUTIONS IMMEDIATELY.

DRAG

What forecasters said that day

The local office's own words before this flash flood 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 22, 3:35 PM CDT, 4 hours 4 minutes before

SPECIAL WEATHER STATEMENT ...CORRECTION...
NATIONAL WEATHER SERVICE MILWAUKEE WI
325 PM CDT MON SEP 22 1986

      ...STRONG THUNDERSTORM HEADED FOR WALWORTH COUNTY...

AT 318 PM CDT..STRONG THUNDERSTORMS WAS LOCATED OVER THE CITY OF
CLINTON /S5 MILES SOUTHEAST OF MADISON/ OF ROCK COUNTY.  THE STORMS
WERE MOVING EAST NORTHEAST AT 30 MPH AND THIS COURSE WILL TAKE THEM
TO THE CITY OF DELAVAN /33 MILES NORTHEAST OF ROCKFORD ILLINOIS/ OF
WALWORTH COUNTY BY 3 45 PM THIS AFTERNOON.

THESE STORMS WILL PRODUCE BRIEF VERY HEAVY RAIN..STRONG GUSTY WINDS..
FREQUENT DANGEROUS LIGHTNING AND POSSIBLE HAIL.

THE VERY HEAVY RAIN MAY CAUSE SOME PONDING OF WATER ON ROADS AS THESE
STORMS MOVE THROUGH.

IF YOU ARE IN THE PATH OF THESE STORMS YOU SHOULD SEEK SHELTER IF
THREATENING WEATHER APPROACHES.
<
WILLIAMS

Special weather statement, Sep 22, 3:36 PM CDT, 4 hours 3 minutes before

SPECIAL WEATHER STATEMENT ...CORRECTION...
NATIONAL WEATHER SERVICE MILWAUKEE WI
325 PM CDT MON SEP 22 1986

      ...STRONG THUNDERSTORM HEADED FOR WALWORTH COUNTY...

AT 318 PM CDT..STRONG THUNDERSTORMS WAS LOCATED OVER THE CITY OF
CLINTON /35 MILES SOUTHEAST OF MADISON/ OF ROCK COUNTY.  THE STORMS
WERE MOVING EAST AT 30 MPH AND THIS COURSE WILL TAKE THEM TO THE CITY
OF DELAVAN /33 MILES NORTHEAST OF ROCKFORD ILLINOIS/ OF WALWORTH
COUNTY BY 3 45 PM THIS AFTERNOON.

THESE STORMS WILL PRODUCE BRIEF VERY HEAVY RAIN..STRONG GUSTY WINDS..
FREQUENT DANGEROUS LIGHTNING AND POSSIBLE HAIL.

THE VERY HEAVY RAIN MAY CAUSE SOME PONDING OF WATER ON ROADS AS THESE
STORMS MOVE THROUGH.
<
IF YOU ARE IN THE PATH OF THESE STORMS YOU SHOULD SEEK SHELTER IF
THREATENING WEATHER APPROACHES.

WILLIAMS

Special weather statement, Sep 22, 4:03 PM CDT, 3 hours 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE WI
355 PM CDT MON SEP 22 1986

         ...STRONG THUNDERSTORM OVER WALWORTH COUNTY...

AT 3:47 PM CDT..STRONG THUNDERSTORMS WAS LOCATED OVER THE CITY OF
OF DELAVAN /33 MILES NORTHEAST OF ROCKFORD ILLINOIS/ OF WALWORTH
COUNTY AND EXTENDS DOWN TO SOUTHWEST WALWORTH COUNTY ABOUT 10 MILES
EAST OF THE CITY OF CLINTON /33 MILES NORTHEAST OF ROCKFORD ILLINOIS/
OF ROCK COUNTY.  THESE STORMS WERE MOVING EAST AT 30 MPH AND WILL MOVE
OVER LAKE GENEVA /31 SOUTHWEST OF MILWAUKEE/ BY 4:20 PM AND CONTINUE
EAST INTO THE WESTERN PART OF KENOSHA COUNTY BY 4:35 PM

THESE STORMS WILL PRODUCE BRIEF HEAVY RAINFALL..STORM GUSTY WINDS..
FREQUENT DANGEROUS LIGHTNING AND POSSIBLE SMALL HAIL.

THE HEAVY RAIN MAY CAUSE SOME PONDING OF WATER ON ROADS AS THESE
STORMS MOVE THROUGH.
<
IF YOU ARE IN THE PATH OF THESE STORMS YOU SHOULD SEEK SAFE
SHELTER IF THEATENING WEATHER APPROACHES.

WILLIAMS

Special weather statement, Sep 22, 4:07 PM CDT, 3 hours 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE WI
355 PM CDT MON SEP 22 1986

         ...STRONG THUNDERSTORM OVER WALWORTH COUNTY...

AT 3:47 PM CDT..STRONG THUNDERSTORMS WAS LOCATED OVER THE CITY
OF DELAVAN /33 MILES NORTHEAST OF ROCKFORD ILLINOIS/ OF WALWORTH
COUNTY AND EXTENDS DOWN TO SOUTHWEST WALWORTH COUNTY ABOUT 10 MILES
EAST OF THE CITY OF CLINTON /33 MILES NORTHEAST OF ROCKFORD ILLINOIS/
OF ROCK COUNTY.  THESE STORMS WERE MOVING EAST AT 30 MPH AND WILL MOVE
OVER LAKE GENEVA /31 SOUTHWEST OF MILWAUKEE/ BY 4:20 PM AND CONTINUE
EAST INTO THE WESTERN PART OF KENOSHA COUNTY BY 4:35 PM.

THESE STORMS WILL PRODUCE BRIEF HEAVY RAINFALL..STRONG GUSTY WINDS..
FREQUENT DANGEROUS LIGHTNING AND POSSIBLE SMALL HAIL.

THE HEAVY RAIN MAY CAUSE SOME PONDING OF WATER ON ROADS AS THESE
STORMS MOVE THROUGH.
<
IF YOU ARE IN THE PATH OF THESE STORMS YOU SHOULD SEEK SAFE
SHELTER IF THEATENING WEATHER APPROACHES.

WILLIAMS

Special weather statement, Sep 22, 4:35 PM CDT, 3 hours 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE WI
434 PM CDT MON SEP 22 1986

       ...1 INCH HAIL BLOOMFIELD SOUTHEAST WALWORTH COUNTY...

A STRONG THUNDERSTORM NOW LEAVING SOUTHEAST WALWORTH COUNTY FOR
KENOSHA COUNTY HAS GIVEN HAIL..UP TO 1 INCH DIAMETER TO THE TOWN
OF BLOOMFIELD. THAT STORM IS NOW HEADED INTO KENOSHA COUNTY AND
IS WEAKENING. SOME SMALL HAIL IS POSSIBLE NEAR THE PATH OF THE STORM
IN WESTERN KENOSHA COUNTY. TIL 5PM.
DRAG

Special weather statement, Sep 22, 4:38 PM CDT, 3 hours 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE WI
438 PM CDT MON SEP 22 1986

   ...INTENSE THUNDERSTORMS JEFFERSON COUNTY SOUTHEAST WISCONSIN...

AT 435PM...THUNDERSTORMS WERE DEVELOPING RAPIDLY IN EASTERN JEFFERSON
COUNTY..ABOUT 20 MILES WEST OF WAUKESHA. THIS CLUSTER IS MOVING EAST
AND MAY PRODUCE GUSTY WINDS TO 35 MPH..SMALL HAIL AND BRIEF BLINDING
RAINS AS PASSES NEAR OR JUST NORTH OF THE CITY OF WAUKESHA BETWEEN 5
AND 515P1M.
DRAG

Nearby

Flash Flood Warnings in Wisconsin, 1986 Every flash flood 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.