Alert archive / Wisconsin / Flash Flood Warnings in 2004
Flash Flood Warning 12, NWS Milwaukee, WI
NWS Milwaukee, WI issued this flash flood warning at Aug 3, 2004, 7:54 PM CDT for Jefferson County, Waukesha County, Wisconsin. It was in force for 2 hr. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 3, 2004, 7:54 PM CDT (00:54 UTC)
- Expired
- Aug 3, 2004, 10:00 PM CDT
- In force
- 2 hr
- Issued by
- NWS Milwaukee, WI
- Area
- Counties, with a storm outline in the text
Counties Jefferson County, WI, Waukesha County, WI
The radar
The Milwaukee radar (KMKX), 1 km from the middle of the area, began a volume at 00:56 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 3, 8:01 PM CDT | FLOOD | 2 S Waukesha, WI | FLOODING REPORTED 2 MILES SOUTH OF WAUKESHA ALONG WITH PEA SIZED HAIL. |
| Aug 3, 8:30 PM CDT | FLASH FLOOD | Waukesha, WI | NUMEROUS ROADS FLOODED AND CLOSED...SIGNIFICANT URBAN FLOODING...LOW LYING AREAS FLOODED...RIVER FLOODING...AND GRAVEL WASHOUTS REPORTED. WAUKESHA COUNTY COUTHOUSE EXPERIENCED BASEMENT FLOODING. RAINFALL RATES BRIEFLY REACHED 3 TO 5 INCHES AN HOUR ACROSS MOST |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.9 hours before the alert went out and 171 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2018 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- -20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KMKX 040055 FFWMKX WIC055-133-040300- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 754 PM CDT TUE AUG 3 2004 THE NATIONAL WEATHER SERVICE IN MILWAUKEE HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHEASTERN JEFFERSON COUNTY IN SOUTHEAST WISCONSIN THIS INCLUDES THE CITIES OF...JEFFERSON...FORT ATKINSON WAUKESHA COUNTY IN SOUTHEAST WISCONSIN THIS INCLUDES THE CITIES OF...WAUKESHA...WALES...PEWAUKEE...NEW BERLIN...MUSKEGO...HARTLAND...ELM GROVE...DELAFIELD...BROOKFIELD * UNTIL 1000 PM CDT * AT 752 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM NEAR FORT ATKINSON...MOVING EAST AT 25 MPH. DOPPLER RADAR RAINFALL ESTIMATES INDICATE THAT 1.5 TO 2 INCHES OF RAIN HAS FALLEN IN ABOUT AN HOUR FROM JUST SOUTHWEST OF JEFFERSON...NORTHEAST TO NEAR OCONOMOWOC. LAT...LON 4300 8888 4282 8882 4289 8806 4315 8808 $$ DAVIS
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 7:15 PM CDT | Severe Thunderstorm Warning | MKX | Dane | 60 min |
| Aug 3, 8:15 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Jefferson | 60 min |
Nearby
Flash Flood Warnings in Wisconsin, 2004Every flash flood warning in 2004
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.