Alert archive / Wisconsin / Flash Flood Warnings in 1986
Flash Flood Warning 11, NWS Milwaukee, WI
NWS Milwaukee, WI issued this flash flood warning at Sep 26, 1986, 10:13 AM CDT for Ozaukee County, Wisconsin. It was in force for 107 min.
The area
The counties it named.
The facts
- Issued
- Sep 26, 1986, 10:13 AM CDT (15:13 UTC)
- Expired
- Sep 26, 1986, 12:00 PM CDT
- In force
- 107 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 12:00Z, 3.2 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
- 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 261513 FFWMKE WIC089-261700- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MILWAUKEE WI 1013 AM CDT FRI SEP 26 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1200 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTHEAST WISCONSIN...OZAUKEE ONE HALF TO 1 INCH OF RAIN THIS MORNING HAS PRODUCED BUMPER DEEP WATER ON HIGHWAY 57 WITH MANY RAODS CLOSED IN OZAUKEE COUNTY DUE TO HIGH WATER AND DOWNED TREES. ANOTHER BATCH OF SHOWERS WILL MOVE ACROSS AT LEAST OZAUKEE COUNTY BETWEEN 1030 AND 1130 THIS MORNING. THIS IS A DANGEROUS SITUATION FOR ALL RESIDENTS OF OZAUKEE COUNTY..ESPECIALLY THOSE LIVING NEAQR CREEKS AND STREAMS AND IN LOW LYING AREAS. 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 26, 6:42 AM CDT, 3 hours 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MADISON WI 640 AM CDT FRIDAY SEP 26 1986 AT 635 AM CDT LOCAL RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS IN THE BARABOO AREA MOVING TO THE EASTNORTH#EAST AT 25 MPH. THE SHERIFF AT SAUK COUNTY REPORTS VERY HEAVY RAIN AND WIND GUSTS TO 40 AND 50 MPH IN THIS STORM. THE STORM WILL BE MOVING INTO NORTHERN COLUMBIA COUNTY NEAR PORTAGE IN THE NEXT 10 TO 15 MINUTES. SWENSON
Special weather statement, Sep 26, 6:58 AM CDT, 3 hours 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 656 AM CDT FRI SEP 26 1986 ...MORE THUNDERSTORMS HEADING TOWARD DODGE COUNTY IN SOUTHEAST WISCONSIN... AT 655 AM WEATHER RADAR INDICATED THUNDERSTORMS NEAR FOX LAKE AND BEAVER DAM 35 MILES SOUTHEAST OF OSHKOSH. ANOTHER AREA OF STRONGER THUNDERSTORMS WERE MOVING INTO EXTREME WESTERN DODGE COUNRY AND WILL AFFECT MUCH OF NORTHWEST DODGE COUNTY FROM FOX LAKE TO BEAVER DAM TO HORICON UNTIL 8AM. THESE STORMS WILL PRODUCE BRIEF HEAVY RAINS AND FREQUENT LIGHTNING AND COULD ALSO CONTAIN HAIL AND GUSTY WINDS. SOME PONDING OF WATER MAY RESULT FROM THE HEAVIER RAINS. AS THE AREA OF STORMS MOVE NORTHEAST THEY WILL MOVE INTO F3OND DU LAC COUNTY BY 730 AM MAINLY WEST OF THE CITY OF FOND DU LAC. HENTZ
Special weather statement, Sep 26, 7:28 AM CDT, 2 hours 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 725 AM CDT FRI SEP 26 1986 ...STRONG THUNDERSTORMS WITH HEAVY RAINS HEADING TOWARD FOND DU LAC... AT 720 AM WEATHER RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS FROM 30 MILES SOUTHWEST OF OSHKOSH NEAR RIPON..ACROSS THE HORICON AND MAYVILLE AREA TO THE NORTHWEST PART OF MILWAUKEE. HORICON REPORTED VERY HEAVY RAIN AND HALF INCH HAIL. 720. AROUND 7AM RANDOLF REPORTED 45 TO 55 MPH WIND. THE STORMS SHOULD REACH THE FOND DU LAC AREA BY 745 AM. THESE STORMS WILL PRODUCE BRIEF HEAVY RAINS AND FREQUENT LIGHTNING AND COULD ALSO CONTAIN HAIL AND GUSTY WINDS. SOME PONDING OF WATER MAY RESULT FROM THE HEAVY RAINS..HOWEVER THE STIROMS WERE MOVING AT 40 MPH SO THE POTENTIAL FOR SERIOUS FLOODING IS REDUCED. HENTZ
Special weather statement, Sep 26, 7:32 AM CDT, 2 hours 41 minutes before
SPECIAL WEATHER STATEMENT ...CORRECTED... NATIONAL WEATHER SERVICE MILWAUKEE WI 725 AM CDT FRI SEP 26 1986 ...STRONG THUNDERSTORMS WITH HEAVY RAINS HEADING TOWARD FOND DU LAC... AT 720 AM WEATHER RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS FROM 30 MILES SOUTHWEST OF OSHKOSH NEAR RIPON..ACROSS THE HORICON AND MAYVILLE AREA TO THE NORTHWEST PART OF MILWAUKEE. HORICON REPORTED VERY HEAVY RAIN AND HALF INCH HAIL AT 720 AM. AROUND 7AM RANDOLF REPORTED 45 TO 55 MPH WINDS. THE STORMS SHOULD REACH THE FOND DU LAC AREA BY 745 AM. THESE STORMS WILL PRODUCE BRIEF HEAVY RAINS AND FREQUENT LIGHTNING AND COULD ALSO CONTAIN HAIL AND GUSTY WINDS. SOME PONDING OF WATER MAY RESULT FROM THE HEAVY NRAINS..HOWEVER THE STROMS WERE MOVING AT 40 MPH SO THE POTENTIAL FOR SERIOUS FLOODING IS REDUCED. HENTZ
Special weather statement, Sep 26, 8:10 AM CDT, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 808 AM CDT FRI SEP 26 1986 ..STRONG THUNDERSTORMS WITH HEAVY RAINS IN SHEBOYGAN COUNTY.. AT 805 AM WEATHER RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS MOVING INTO SHEBOYGAN COUNTY. THE STORMS EXTENDED FROM NORTHERN OZAUKEE COUNTY TO 20 MILES WEST OF SHEBOYGAN TO NEENAH. THE STORMS THEN EXTENDED TO NORTH OF WAUSAU. THESE STORMS WILL PRODUCE BRIEF HEAVY RAINS AND FREQUENT LIGHTNING AND COULD ALSO CONTAIN HAIL AND GUSTY WINDS. SOME PONDING OF WATER MAY RESULT FROM THE HEAVY RAINS. THE STORMS WILL BE AFFECTING SHEBOYGAN BETWEEN 815 AND 830. A SEVERE THUNDERSTORM WATCH IS IN EFFECT THIS MORNING FOR PARTS OF EASTERNz WISCONSIN. HENTZ
Special weather statement, Sep 26, 8:32 AM CDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE WI 828 AM CDT FRI SEP 26 1986 ..STRONG THUNDERSTORMS WITH BLINDING RAINS IN SHEBOYGAN COUNTY.. AT 828 AM WEATHER RADAR INDICATED A BAND OF THUNDERSTORMS FROM EASTERN SHEBOYGAN COUNTY SOUTHWEST TO WAUKESHA AND WALWORTH COUNTY. HEAVIEST STORMS WERE LOCATED ABOUT OVER SHEBOYGAN IN SHEBOYGAN COUNTY AND DELEVAN IN WALWORTH COUNTY. OTHER STRONG STORMS WERE DEVELOPING RAPIDLY NEAR WAUKESHA IN WAUKESHA. STORMS ARE PRODUCING BLINDING RAINS REDUCING VISIBILITY TO HALF A CITY BLOCK FOR A COUPLE MINUTES..ALSO SOME SMALL HAIL AND GUSTY WINDS TO 40 MPH. THE COUNTIES OF WALWORTH/WAUKESHA/ RACINE/KENOSHA/WAHSINGTON AND OZAUKEE CAN EXPECT POWER OUTAGES DUE TO LIGHTNING STRIKES FROM SOME OF THESE STORMS BETWEEN NOW AND 10AM ALONG WITH BRIEF STREET FLOODING AND SMALL HAIL. GUSTY WINDS TO 40 MPH COULD EASILY KNOCK DOWN TREES IN SOME AREAS...TREES WHOSE ROOTS ARE WEAKENED BECAUSE OF SATURATED SOILS. CAUTION IS ADVISED FOR ALL PERSONS OUT OF DOORS IN THE MILWAUKEE..WAKESHA..PORT WASHINGTON..RACINE AND KENOSHA AREAS. DRAG
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 6:38 PM CDT | Severe Thunderstorm Warning | MKX | Clark | 37 min |
| Sep 26, 6:54 PM CDT | Severe Thunderstorm Warning | MKX | Marathon | 51 min |
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.