Alert archive / Wisconsin / Flash Flood Warnings in 2002

Flash Flood Warning 5, NWS Milwaukee, WI

July 8, 2002Fond du Lac County, Sheboygan County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Jul 8, 2002, 9:30 PM CDT for Fond du Lac County, Sheboygan 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 as issued.

The facts

Issued
Jul 8, 2002, 9:30 PM CDT (02:30 UTC)
Expired
Jul 9, 2002, 1:30 AM CDT
In force
4 hr
Issued by
NWS Milwaukee, WI
Area
Counties, with a storm outline in the text

Counties Fond du Lac County, WI, Sheboygan County, WI

The radar

The Green Bay radar (KGRB), 83 km from the middle of the area, began a volume at 02:33 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 2.5 hours before the alert went out and 81 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 2002-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1990 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2002-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
1990 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
973 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.5

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KMKX 090230
FFWMKE
WIC039-117-090630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
929 PM CDT MON JUL 8 2002

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FOND DU LAC COUNTY IN EAST CENTRAL WISCONSIN
  THIS INCLUDES THE CITIES OF...RIPON...NORTH FOND DU LAC...FOND DU
  LAC
  SHEBOYGAN COUNTY IN EAST CENTRAL WISCONSIN
  THIS INCLUDES THE CITIES OF...SHEBOYGAN FALLS...PLYMOUTH...HOWARDS
  GROVE

* UNTIL 130 AM CDT

* AT 929 PM CDT...FLASH FLOODING WAS REPORTED ALONG HIGHWAY 41       
  BETWEEN HIGHWAY 151 AND HIGHWAY 175 IN FOND DU LAC. FIND DU LAC    
  SHERIFF DEOUTIES REPORT HIGHWAY 41 IS CLOSED BECAUSE 4 TO 5 FEET   
  OF WATER IS COVERING THE HIGHWAY. 

* WEATHER SERVICE DOPPLER RADAR ESTIMATES ARE THAT 3 TO 4 INCHES     
  OF RAINFALL FELL DURING THE PAST 4 HOURS. THIS RAIN...AND THE      
  ADDITIONAL EXPECTED BETWEEN 930 PM AND 11 PM...WILL CAUSE LOCAL    
  STREAMS AND RIVERS TO RISE RAPIDLY AND OVERFLOW THEIR BANKS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 4386 8773 4355 8779 4365 8888 4386 8887

REM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 7:35 PM CDTSpecial Marine WarningMKX115 min
Jul 8, 7:35 PM CDTSpecial Marine WarningMKX115 min
Jul 8, 8:14 PM CDTSevere Thunderstorm WarningMKXWashington16 min
Jul 8, 8:24 PM CDTSevere Thunderstorm WarningMKXOzaukee, Washington36 min
Jul 8, 8:27 PM CDTSpecial Marine WarningMKX3 hr
Jul 8, 8:27 PM CDTSpecial Marine WarningMKX3 hr
Jul 8, 8:27 PM CDTSpecial Marine WarningMKX3 hr
Jul 8, 8:31 PM CDTSevere Thunderstorm WarningMKXMilwaukee, Waukesha44 min
Jul 8, 9:44 PM CDTSevere Thunderstorm WarningMKXDodge, Washington46 min

Nearby

Flash Flood Warnings in Wisconsin, 2002Every flash flood warning in 2002

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.