Alert archive / Wisconsin / Flash Flood Warnings in 2000

Flash Flood Warning 24, NWS Milwaukee, WI

June 13, 2000Walworth County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Jun 13, 2000, 4:24 PM CDT for Walworth County, Wisconsin. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jun 13, 2000, 4:24 PM CDT (21:24 UTC)
Expired
Jun 13, 2000, 8:30 PM CDT
In force
4 hr
Issued by
NWS Milwaukee, WI
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Walworth County, WI

The radar

The Milwaukee radar (KMKX), 41 km from the middle of the area, began a volume at 21:27 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 9.4 hours before the alert went out and 199 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, Davenport, at 12:00Z on 2000-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 671 joules per kilogram.LCLLFCEL10008507005003002001001 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, Davenport, at 12:00Z on 2000-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 356 square meters per square second.1939Sfc1 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
671 J/kg
Mixed-layer CIN
-140 J/kg
Mixed-layer LCL
449 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
356 m²/s²
0-3 km storm-relative helicity
366 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KMKX 132126
FFWMKX
WIC127-140130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE-SULLIVAN WI
424 PM CDT TUE JUN 13 2000

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* FLASH FLOOD WARNING FOR A LEVEE FAILURE IN...
  SOUTHERN WALWORTH COUNTY IN SOUTHEAST WISCONSIN
  THIS INCLUDES THE CITIES OF...WALWORTH

* UNTIL 830 PM CDT

* AT 422 PM CDT...A LEVEE BROKE AT THE TOWN OF WALWORTH AND NIPPERSINK
  CREEK IS OUT OF ITS BANKS BY UP TO 10 FEET.  HOMES ARE SURROUNDED BY
  WATER.

AREAS DOWNSTREAM FROM THE LEVEE ALONG NIPPERSINK CREEK SHOULD
BE PREPARED FOR FLOODING. TAKE NECESSARY PRECAUTIONS IMMEDIATELY.

PEOPLE BELOW THE LEVEE SHOULD TAKE IMMEDIATE ACTION BY MONITORING LOCAL
RADIO OR TELEVISION AND FOLLOWING INSTRUCTIONS FOR ANY REQUIRED
EVACUATION AS OUTLINED BY LOCAL EMERGENCY OFFICIALS.

LAT...LON 4266 8834 4250 8832 4253 8871 4266 8874

HENTZ/REM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 2:30 PM CDTFlash Flood WarningMKXIowa, Lafayette, Sauk6 hr
Jun 13, 4:51 PM CDTFlash Flood WarningMKXDane4 hr
Jun 13, 6:12 PM CDTFlash Flood WarningMKXWalworth4 hr
Jun 13, 6:31 PM CDTSevere Thunderstorm WarningMKXWalworth29 min
Jun 13, 6:45 PM CDTSevere Thunderstorm WarningMKXKenosha, Racine30 min

Nearby

Flash Flood Warnings in Wisconsin, 2000Every flash flood warning in 2000

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; radar from the NEXRAD Level II archive.