Alert archive / Wisconsin / Flash Flood Warnings in 1996

Flash Flood Warning 7, NWS Milwaukee, WI

June 17, 1996Sauk County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Jun 17, 1996, 4:46 PM CDT for Sauk County, Wisconsin. It was in force for 119 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 17, 1996, 4:46 PM CDT (21:46 UTC)
Expired
Jun 17, 1996, 6:45 PM CDT
In force
119 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Sauk County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.8 hours before the alert went out and 189 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 12:00Z on 1996-06-17Temperature 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 12:00Z on 1996-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 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
502 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 172148
FFWMKE
WIC111-172345-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
446 PM CDT MON JUN 17 1996
 
THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  645 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST WISCONSIN
 
   ...EASTERN SAUK COUNTY
 
DOPPLER RADAR ESTIMATES AND SURFACE REPORTS INDICATE THAT 1 TO 2 INCHES
OF RAIN HAS FALLEN BETWEEN 230 AND 430 PM OVER EASTERN SAUK COUNTY.
THUNDERSTORMS WITH VERY HEAVY RAIN WILL CONTINUE TO TRACK OVER FAR
EASTERN SAUK COUNTY BETWEEN 4:45 AND 6 PM. FLOODING IS IMMINENT.
 
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!
 
 
BROWNIfNG

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, Jun 17, 11:57 AM CDT, 4 hours 49 minutes before
WIZ013-018>022-030>72-172300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1155 AM CDT MON JUN 17 1996

...FLASH FLOOD WATCH CONTINUES FOR CENTRAL...SOUTHERN...AND PARTS OF
NORTHEAST WISCONSIN INTO TONIGHT...

WHILE HEAVY RAINS HAVE ENDED OVER MUCH OF THE WATCH AREA...THE
POTENTIAL EXISTS FOR MORE HEAVY RAINS TO DEVELOP LATER THIS AFTERNOON.

OVERNIGHT...UP TO 5 INCHES OF RAIN FELL OVER PARTS OF SOUTHWEST WISCONSIN
...WITH 1 TO 3 INCH AMOUNTS COMMON OVER THE ENTIRE WATCH AREA. SOILS ARE
SATURATED...AND ANY ADDITIONAL RAINS WILL QUICKLY RUN OFF INTO ALREADY
SWOLLEN STREAMS AND RIVERS.

THE ATMOSPHERE IS VERY UNSTABLE...AND THUNDERSTORMS ARE ONCE AGAIN
BEGINNING TO DEVELOP IN FAR SOUTHWEST WISCONSIN. PERSONS WITHIN THE
WATCH AREA SHOULD LISTEN TO NOAA WEATHER RADIO AND LOCAL RADIO AND
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
BROWNING

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 9:43 PM CDTSevere Thunderstorm WarningMKXSauk62 min
Jun 17, 1:21 AM CDTSevere Thunderstorm WarningMKXRock39 min
Jun 17, 3:00 AM CDTFlash Flood WarningMKXColumbia, Dane, Sauk3 hr
Jun 17, 3:00 AM CDTFlash Flood WarningMKXGreen, Rock3 hr
Jun 17, 3:00 AM CDTFlash Flood WarningMKXIowa, Lafayette3 hr
Jun 17, 2:22 PM CDTFlash Flood WarningMKXSauk2 hr
Jun 17, 2:22 PM CDTSevere Thunderstorm WarningMKXSauk2 hr
Jun 17, 2:46 PM CDTTornado WarningMKXSauk29 min
Jun 17, 2:55 PM CDTTornado WarningMKXColumbia50 min
Jun 17, 4:07 PM CDTFlash Flood WarningMKXColumbia2 hr

Nearby

Flash Flood Warnings in Wisconsin, 1996Every flash flood warning in 1996

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.