Alert archive / Wisconsin / Flash Flood Warnings in 2007

Flash Flood Warning 25, NWS Milwaukee, WI

August 22, 2007Kenosha County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Aug 22, 2007, 6:43 PM CDT for Kenosha County, Wisconsin. It was in force for 6 hr. 1 report 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 22, 2007, 6:43 PM CDT (23:43 UTC)
Expired
Aug 23, 2007, 12:45 AM CDT
In force
6 hr
Issued by
NWS Milwaukee, WI
Area
Counties, with a storm outline in the text
Flood severity
None

County Kenosha County, WI

The radar

The Milwaukee radar (KMKX), 61 km from the middle of the area, began a volume at 23:44 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

TimeReportWhereRemark
Aug 22, 10:55 PM CDTFLASH FLOODSilver Lake, WIHIGHWAY 50 CLOSED DUE TO HIGH WATER BETWEEN HIGHWAY 75 AND HIGHWAY 83 NORTH. THIS STRETCH IS ROUGHLY BETWEEN PADDOCK LAKE AND WHEATLAND.

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 12:00Z, 11.7 hours before the alert went out and 211 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 2007-08-22Temperature 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°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 2007-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
1074 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KMKX 222345
FFWMKX
WIC059-230545-
/X.NEW.KMKX.FF.W.0025.070822T2343Z-070823T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
643 PM CDT WED AUG 22 2007

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  KENOSHA COUNTY IN SOUTHEAST WISCONSIN

* UNTIL 1245 AM CDT

* AT 639 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN FROM JANESVILLE TO 
RACINE...SAGGING SLOWLY SOUTH INTO KENOSHA COUNTY. 

1 TO 3 INCHES OF RAIN IS EXPECTED THIS EVENING.  GIVEN CURRENT HIGH 
WATERS AND SATURATED CONDITIONS ACROSS THE COUNTY...ADDITIONAL RISES 
ON AREA CREEKS AND STREAMS IS LIKELY.  URBAN FLOODING IN THE KENOSHA 
METRO IS ALSO LIKELY.  

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO KENOSHA

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. 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 4249 8830 4261 8830 4260 8819 4266 8817
      4266 8780 4267 8779 4264 8780 4252 8780
      4249 8779

$$

CRAVEN
3 follow-up statements
000 
WGUS73 KMKX 230126
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
822 PM CDT WED AUG 22 2007

WIC059-230545-
/X.CON.KMKX.FF.W.0025.000000T0000Z-070823T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KENOSHA-
822 PM CDT WED AUG 22 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
KENOSHA COUNTY...

AT 820 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING VERY HEAVY RAIN MOVING ACROSS 
KENOSHA COUNTY.  RAINFALL RATES OF 1 TO 2 INCHES PER HOUR ARE 
EXPECTED THROUGH 9 PM.  

TOTAL ADDITIONAL RAINFALL OF 1 TO 3 INCHES WILL CONTINUE TO CAUSE 
HIGH WATER PROBLEMS ACROSS THE COUNTY.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

LAT...LON 4249 8830 4261 8830 4260 8819 4266 8817
      4266 8780 4267 8779 4264 8780 4252 8780
      4249 8779

$$

CRAVEN
000 
WGUS73 KMKX 230357
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1055 PM CDT WED AUG 22 2007

WIC059-230545-
/X.CON.KMKX.FF.W.0025.000000T0000Z-070823T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KENOSHA-
1055 PM CDT WED AUG 22 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
KENOSHA COUNTY...

AT 1052 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED NUMEROUS 
ROAD CLOSURES DUE TO HIGH WATER ACROSS KENOSHA COUNTY.  ALTHOUGH THE 
HEAVIEST RAIN IS OVER FOR THE NIGHT...AN ADDITIONAL QUARTER INCH OF 
RAIN IS LIKELY BEFORE THE RAIN TAPERS OFF AFTER MIDNIGHT.  

SOME NOTABLE ROAD CLOSURES DUE TO HIGH WATER INCLUDE:

HIGHWAY C AT INTERSTATE 94 CLOSED DUE TO HIGH WATER.  

HIGHWAY 50 BETWEEN HIGHWAY 75 AND HIGHWAY 83 NORTH CLOSED DUE TO 
HIGH WATER.  

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

LAT...LON 4249 8830 4261 8830 4260 8819 4266 8817
      4266 8780 4267 8779 4264 8780 4252 8780
      4249 8779

$$

CRAVEN
000 
WGUS73 KMKX 230507
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1205 AM CDT THU AUG 23 2007

WIC059-230515-
/X.CAN.KMKX.FF.W.0025.000000T0000Z-070823T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KENOSHA-
1205 AM CDT THU AUG 23 2007

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR KENOSHA COUNTY...

THE HEAVIEST RAIN AND THE FLASH FLOODING HAS ENDED. FLOODING WILL 
PERSIST IN AREAS THAT HAVE BEEN FLOODED FROM PREVIOUS DAYS. 
HOWEVER...THE THREAT FOR FLASH FLOODING HAS DIMINISHED. 
THEREFORE...THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

LAT...LON 4249 8830 4261 8830 4260 8819 4266 8817
      4266 8780 4267 8779 4264 8780 4252 8780
      4249 8779

$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 9:06 PM CDTFlash Flood WatchMKXColumbia, Dane, Green, Iowa, Lafayette, Sauk6 hr
Aug 21, 11:49 PM CDTFlash Flood WarningMKXIowa, Lafayette, Sauk4 hr
Aug 22, 12:06 AM CDTSevere Thunderstorm WarningMKXIowa, Sauk54 min
Aug 22, 12:37 AM CDTFlash Flood WarningMKXColumbia, Dane6 hr
Aug 22, 12:44 AM CDTSevere Thunderstorm WarningMKXColumbia, Dane76 min
Aug 22, 1:11 AM CDTSevere Thunderstorm WarningMKXGreen Lake, Marquette69 min
Aug 22, 1:15 AM CDTFlash Flood WarningMKXGreen6 hr
Aug 22, 1:33 AM CDTSevere Thunderstorm WarningMKXDodge57 min
Aug 22, 3:00 AM CDTSpecial Marine WarningMKX60 min
Aug 22, 3:28 AM CDTSevere Thunderstorm WarningMKXKenosha39 min
Aug 22, 3:33 AM CDTSpecial Marine WarningMKX42 min
Aug 22, 11:22 AM CDTFlash Flood WatchMKXColumbia, Dane, Dodge, Green, Iowa, Jefferson and 10 more48 hr
Aug 22, 4:27 PM CDTFlash Flood WarningMKXDane, Dodge, Green, Jefferson, Lafayette, Washington6 hr
Aug 22, 4:41 PM CDTSpecial Marine WarningMKX2 hr
Aug 22, 4:47 PM CDTSevere Thunderstorm WarningMKXDodge, Washington, Waukesha43 min
Aug 22, 4:58 PM CDTFlash Flood WarningMKXWaukesha6 hr
Aug 22, 5:03 PM CDTSevere Thunderstorm WarningMKXMilwaukee, Ozaukee42 min
Aug 22, 5:07 PM CDTTornado WarningMKXLafayette20 min
Aug 22, 5:13 PM CDTFlash Flood WarningMKXMilwaukee, Ozaukee6 hr
Aug 22, 5:14 PM CDTSpecial Marine WarningMKX2 hr
Aug 22, 5:20 PM CDTSevere Thunderstorm WarningMKXIowa70 min
Aug 22, 5:25 PM CDTFlash Flood WarningMKXRock6 hr
Aug 22, 5:29 PM CDTSevere Thunderstorm WarningMKXRacine46 min
Aug 22, 5:30 PM CDTSevere Thunderstorm WarningMKXLafayette60 min
Aug 22, 5:40 PM CDTFlash Flood WarningMKXIowa3 hr
Aug 22, 5:41 PM CDTSevere Thunderstorm WarningMKXMilwaukee34 min
Aug 22, 6:08 PM CDTFlash Flood WarningMKXRacine, Walworth6 hr
Aug 22, 6:13 PM CDTSevere Thunderstorm WarningMKXDane, Green47 min
Aug 22, 6:29 PM CDTSevere Thunderstorm WarningMKXIowa, Lafayette19 min
Aug 22, 6:39 PM CDTRiver Flood WarningMKXGreen13 days

Nearby

Flash Flood Warnings in Wisconsin, 2007Every flash flood warning in 2007

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.