Alert archive / Wisconsin / Flash Flood Warnings in 1986

Flash Flood Warning 7, NWS Milwaukee, WI

September 22, 1986Fond du Lac County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Sep 22, 1986, 2:15 AM CDT for Fond du Lac County, Wisconsin. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Sep 22, 1986, 2:15 AM CDT (07:15 UTC)
Expired
Sep 22, 1986, 5:00 AM CDT
In force
3 hr
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Fond du Lac 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, 7.3 hours before the alert went out and 86 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 00:00Z on 1986-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 00:00Z on 1986-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 218 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
536 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
218 m²/s²
0-3 km storm-relative helicity
388 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 220715
FFWMKE
WIC039-221000-

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

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 500 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

EAST CENTRAL WISCONSIN...FOND-DU-LAC

THUNDERSTORMS WITH VERY HEAVY RAINS WILL BE MOVING INTO FOND DU LAC
COUNTY BY 230 AM.  PRESENT INDICATIONS ARE THAT RAINFALLS OF ONE
INCH OR GREATER WILL CREATE SERIOUS FLOODING PROBLEMS IN THE
CITIES OF FOND DU LAC AND NORTH FOND DU LAC.  THE STORMS MOVING
INTO THAT AREA ARE LIKELY TO EXCEED ONE INCH IN A VERY SHORT PERIOD
OF TIME. WHILE FLASH FLOODING IS POSSIBLE IN OTHER PARTS OF THE
COUNTY THE MAIN THREAT WILL BE IN THE CITIES OF FOND DU LAC AND
NORTH FOND DU LAC.
LACE AN X BY THE CANNED STATEMENT YOU WANT TO APPEAR AT THE END.

IF YOU ARE IN YOUR CAR AND IT STALLS NEAR A RIVER..ABANDON IT AN%D
FLEE TO HIGHER GROUND.  DONT ATTEMPT CROSSING SWOLLEN STREAMS.
CURRENTS AND RAPIDLY RISING WATER CAN SWEEP YOU OFF YOUR FEET.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 22, 4:55 AM CDTFlash Flood WarningMKXFond du Lac4 hr
Sep 22, 4:59 AM CDTFlash Flood WarningMKXDodge, Washington4 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.