Alert archive / Wisconsin / Flash Flood Warnings in 1986
Flash Flood Warning 4, NWS Milwaukee, WI
NWS Milwaukee, WI issued this flash flood warning at Sep 10, 1986, 7:03 PM CDT for Ozaukee County, Wisconsin. It was in force for 117 min.
The area
The counties it named.
The facts
- Issued
- Sep 10, 1986, 7:03 PM CDT (00:03 UTC)
- Expired
- Sep 10, 1986, 9:00 PM CDT
- In force
- 117 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
County Ozaukee 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, 0.1 hours before the alert went out and 121 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
- 7 J/kg
- Mixed-layer CIN
- -162 J/kg
- Mixed-layer LCL
- 664 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMKE 110003 FFWMKE WIC027-089-131-110400- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MILWAUKEE WI 703 PM CDT WED SEP 10 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1100 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTHEAST WISCONSIN...DODGE...OZAUKEE AND WASHINGTON AT 655 PM CDT...RADAR INDICATES CONTINUED HEAVY RAINFALL OCCURRING OVER THE SAME AREA IN SOUTHEAST WISCONSIN. THIS IS DUE TO REPEATED HEAVY THUNDERSTORMS MOVING EAST ALONG THE SAME LINE WHICH IS PRESENTLY LOCATED ACROSS DODGE.. WASHINGTON AND OZAUKEE COUNTIES. WIDEPSREAD REPORTS OF HEAVY RAIN HAVE BEEN RECEIVED ALONG WITHW REPORTS OF FLOODING IN HORICON. A FLASH FLOOD WARNING MEANS FLOODING HAS BEEN REPORTED OR IS IMMINENT. TAKE NECESSARY PRECAUTIONS IMMEDIATELY. GARCIA
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 10, 5:29 PM CDT, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 525 PM CDT WED SEP 10 1986 ..SEVERE THUNDERSTORM WATCH MUCH OF CENTRAL AND SOUTHERN WISCONSIN.. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PORTION OF CENTRAL AND SOUTHERN WISCONSIN THROUGH 10PM. THE NORTHERN BORDER OF THE WATCH RUNS FROM NEAR EAU CLAIRE EAST TO DOOR COUNTY WITH THE SOUTHERN EDGE FROM LONE ROCK TO JUST NORTH OF MADISON AND MILWAUKEE. AT 525 PM RADAR SHOWS A NARROW BAND OF THUNDERSTORMS EXTENDING FROM NEAR SHEBOYGAN WEST INTO WEST CENTRAL DODGE COUNTY NEAR JUNEAU THEN WEST TO NEAR SAUK CITY IN SOUTH CENTRAL WISCONSIN. STORMS ARE REPEATING OVER THE SAME PATH AND WILL PRODUCE AN INCH OF RAIN IN A 30 MINUTE PERIOD WITH SOME PARTS OF EXTREME SOUTHERN SHEBOYGAN/NORTHERN WASHINGTON AND CENTRAL DODGE COUNTIES LIKELY TO RECEIVE 2 INCHES OF RAIN IN AN HOURS TIME. THIS WILL CAUSE LOCAL HIGHWAY AND BASEMENT FLOODING. PERSONS IN THE BAND OF HEAVY RAINS NORTHWEST OF MILWAUKEE SHOULD EXERCISE CAUTION IN OUTDOOR TRAVEL THIS EVENING. DRAG
Special weather statement, Sep 10, 5:52 PM CDT, 1 hour 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 550 PM CDT WED SEP 10 1986 ..SEVERE THUNDERSTORM WATCH MUCH OF CENTRAL AND SOUTHERN WISCONSIN.. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PORTION OF CENTRAL AND SOUTHERN WISCONSIN THROUGH 10PM. THE NORTHERN BORDER OF THE WATCH RUNS FROM NEAR EAU CLAIRE EAST TO DOOR COUNTY WITH THE SOUTHERN EDGE FROM LONE ROCK TO JUST NORTH OF MADISON AND MILWAUKEE. AT 545 PM RADAR SHOWS A NARROW BAND OF THUNDERSTORMS EXTENDING FROM NEAR SHEBOYGAN WEST INTO SOUTHERN DODGE COUNTY TO JUST NORTH OF MADISON IN SOUTH CENTRAL WISCONSIN. THE LINE IS SLIPPING EAST SOUTHEAST WHILE STORMS ROLL NORTHEAST IN THE LINE. OTHER STRONG CELLS ARE POPPING UP IN JEFFERSON COUNTY AROUND JOHNSONS CREEK AND NEAR WATERTOWN. POWER OUTAGES DUE TO LIGHTNING STRIKES AS WELL AS VERY HEAVY RAIN CAN BE EXPECTED WITH THESE STORMS AS THEY MOVE THROUGH THE REST OF SOUTHERN DODGE..NORTHERN JEFFERSON..WASHINGTON..OZAUKEE AND EXTREME NORTHWEST WAUKESHA COUNTY BETWEEN NOW AND 645PM. MARBLE SIZE HAIL WAS REPORTED AROUND 515PM IN SAUK CITY..15 MILES NORTHWEST OF MADISON. THUNDERSTORMS ARE NOT EXPECTED IN THE IMMEDIATE MILWAUKEE METRO AREA UNTIL 7PM OR AFTER. DRAG
Special weather statement, Sep 10, 6:00 PM CDT, 1 hour 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 600 PM CDT WED SEP 10 1986 ... SEVERE THUNDERSTORM WATCH IN EFFECT FOR A LARGE PORTION ON WESTERN WISCONSIN AS WELL AS ADJACENT AREAS OF MINNESOTA UNTIL 10 00 PM CDT THIS EVENING ... AT 5 50 PM CDT A LINE OF HEAVY THUNDERSTORMS EXTENDED FROM EAU CLAIRE IN WEST CENTRAL WISCONSIN .. SOUTHWEST TO 30 MILES NORTH OF ROCHESTER MINNESOTA. THIS LINE OF HEAVY THUNDERSTORMS CONTINUED MOVING TO THE EAST NORTHEAST AT 30 MPH. NO SEVERE WEATHER HAS BEEN REPORTED .. HOWEVER ISOLATED AREAS OF INTENSE RAINFALL HAVE BEEN NOTED ACROSS PORTIONS OF SOUTHEAST MINNESOTA. IN OTHER AREAS INTENSE AND SEVERE THUNDERSTORMS WERE OCCURRING ACROSS MUCH OF EAST CENTRAL IOWA .. NORTHERN ILLINOIS AND PRTIONS OF SOUTHERN WISCONSIN. PERSONS IN WESTERN WISCONSIN SHOULD REMAIN ALERT TO CHANGING WEATHER CONDITIONS AND BE PREPARED SO SEEK SHELTER IF THREATING WEATHER IS SIGHTED. PERSONS LIVING ALONG SMALL STREANS AND CREEKS AND IN LOW LYING AREAS SHOULD ALSO BE ALERT TO POSSIBLE FLOODING AS PERIODS OF RAIN ARE EXPECTED TO CONTINUE FOR THE NEXT SEVERAL HOURS AND MOST GROUNDS ARE SATURATED. ZIMMERMAN
Special weather statement, Sep 10, 6:03 PM CDT, 1 hour before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MADISON WI 605PM CDT WED SEP 10 1986 ...THUNDERSTORMS IN SOUTH..CENTRAL WISCONSIN... AT 6PM CDT RADAR INDICATED A LINE OF HEAVY THUNDERSTORMS FROM NEAR DODGEVILLE (25 MILES SOUTH..SOUTHEAST OF LONE ROCK) TO NEAR COLUMBUS (15 MILES NORTHEAST OF MADISON). THIS LINE OF STORMS WAS MOVING TOWARDS THE EAST..NORTHEAST AT 40 MPH. AS THEY PASSED THROUGH SAUK CITY... MARBLE SIZE HAIL WAS REPORTED. THESE STORMS HAVE A HISTORY OF DOWNPOURS AND GUSTY WINDS...WITH LOTS OF LIGHTNING. THESE STORMS WERE A PART OF A LARGER AREA OF PRECIPIATION IN THE SOUTHERN TWO-THIRDS OF THE STATE. IF SEVERE WEATHER APPROACHES...SEEK SHELTER QUICKLY. STIMACH
Special weather statement, Sep 10, 6:17 PM CDT, 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 615 PM CDT WED SEP 10 1986 ..SEVERE THUNDERSTORM WATCH MUCH OF CENTRAL AND SOUTHERN WISCONSIN.. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PORTION OF CENTRAL AND SOUTHERN WISCONSIN THROUGH 10PM. THE NORTHERN BORDER OF THE WATCH RUNS FROM NEAR EAU CLAIRE EAST TO DOOR COUNTY WITH THE SOUTHERN EDGE FROM LONE ROCK TO JUST NORTH OF MADISON AND MILWAUKEE. AT 615 PM RADAR SHOWS A NARROW BAND OF THUNDERSTORMS EXTENDING FROM PORT WASHINGTON TO SOUTHERN DODGE COUNTY TO ABOUT MADISON IN SOUTH CENTRAL WISCONSIN. THE LINE IS SLIPPING EAST SOUTHEAST WHILE STORMS ROLL EAST NORTHEAST IN THE LINE. 62 HUNDRETHS OF AN INCH /0.62/ WAS REPORTED IN A 20 MINUTE PERIOD ENDING 610PM 2 MILES NORTH OF SLINGER OR ABOUT 28 MILES NORTHWEST OF MILWAUKEE. POWER OUTAGES FROM LIGHTNING STRIKES..PEA SIZED HAIL AS WELL AS VERY HEAVY RAIN CAN BE EXPECTED BETWEEN NOW AND 715 PM THROUGH SOUTHERN DODGE..ALL OF WASHINGTON AND OZAUKEE COUNTIES WITH HEAVY STORMS MOVING INTO JEFFERSON AND WAUKESHA COUNTIES BETWEEN 7 AND 730 PM. THUNDERSTORMS ARE NOT EXPECTED IN THE CITIES OF MILWAUKEE..RACINE AND KENOSHA UNTIL ABOUT 8PM OR LATER. DRAG#
Special weather statement, Sep 10, 6:37 PM CDT, 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MADISON WI 635PM CDT WED SEP 10 1986 ...SCATTERED THUNDERSTORMS IN SOUTHERN WISCONSIN... AT 630PM CDT A FEW SCATTERED HEAVY THUNDERSTORMS WERE LOCATED IN THE SOUTHERN QUARTER OF THE STATE...IN AN AREA 25 MILES WIDE FROM 15 MILES SOUTHEAST OF LONE ROCK TO 15 MILES NORTH OF MILWAUKEE. THESE STORMS WERE MOVING TOWARDS THE EAST AT 35 MPH. SO FAR THESE STORMS HAVE ONLY THREATENED HEAVY RAINS...LOTS7 OF LIGHTNING...AND GUSTY WINDS. SHOULD SEVERE WEATHER THREATEN YOU...SEEK SHELTER QUICKLY. THESE STORMS WERE IN A LARGER AREA OF SHOWERS AND THUNDERSHOWERS IN THE SOUTHERN HALF OF THE STATE. STIMACH
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 7:00 PM CDT | Severe Thunderstorm Warning | MKX | Dodge | 15 min |
| Sep 10, 7:03 PM CDT | Flash Flood Warning | MKX | Dodge, Washington | 117 min |
| Sep 11, 2:04 AM CDT | Flash Flood Warning | MKX | Ozaukee, Washington | 4 hr |
| Sep 11, 2:04 AM CDT | Flash Flood Warning | MKX | Dodge | 4 hr |
Nearby
Flash Flood Warnings in Wisconsin, 1986Every 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.