Alert archive / Wisconsin / Flash Flood Warnings in 2007

Flash Flood Warning 5, NWS Milwaukee, WI

June 18, 2007Rock County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Jun 18, 2007, 10:03 PM CDT for Rock County, Wisconsin. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 18, 2007, 10:03 PM CDT (03:03 UTC)
Expired
Jun 19, 2007, 12:00 AM CDT
In force
117 min
Issued by
NWS Milwaukee, WI
Area
Counties, with a storm outline in the text
Flood severity
None

County Rock County, WI

The radar

The Milwaukee radar (KMKX), 60 km from the middle of the area, began a volume at 03:05 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 00:00Z, 3.1 hours before the alert went out and 160 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 00:00Z on 2007-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 943 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, Davenport, at 00:00Z on 2007-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 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
943 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
867 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.2

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KMKX 190304
FFWMKX
WIC105-190500-
/X.NEW.KMKX.FF.W.0005.070619T0303Z-070619T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1003 PM CDT MON JUN 18 2007

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ROCK COUNTY IN SOUTH CENTRAL WISCONSIN

* UNTIL MIDNIGHT CDT

* AT 1001 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH
  FLOODING FROM THUNDERSTORMS IN THE BELOIT AREA. SOME INTERSECTIONS 
  ARE COVERED WITH 1 FOOT OF WATER. THE STORMS ARE MOVING EAST AT 45 
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  JOHNSTOWN CENTER.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

LAT...LON 4251 8937 4251 8879 4284 8878 4285 8936

$$

DAVIS
2 follow-up statements
000 
WGUS73 KMKX 190359
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1057 PM CDT MON JUN 18 2007

WIC105-190500-
/X.CON.KMKX.FF.W.0005.000000T0000Z-070619T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ROCK-
1057 PM CDT MON JUN 18 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
ROCK COUNTY...

AT 1055 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING FLASH FLOODING.  THESE STORM WERE 
LOCATED NEAR BELOIT...MOVING EAST AT 35 MPH. RADAR ESTIMATES OF 
RAINFALL ARE IN THE 2.5 TO 3 INCH RAIN FOR THE ENTIRE EVENING. THE 
HARDEST HIT AREA IS SOUTHEAST ROCK COUNTY...INCLUDING BELOIT. 

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
JOHNSTOWN CENTER...EMERALD GROVE...SHOPIERE AND AFTON. 

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

LAT...LON 4251 8937 4251 8879 4284 8878 4285 8936

$$

DAVIS
000 
WGUS73 KMKX 190450
FFSMKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1150 PM CDT MON JUN 18 2007

WIC105-190500-
/X.CON.KMKX.FF.W.0005.000000T0000Z-070619T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ROCK-
1150 PM CDT MON JUN 18 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
ROCK COUNTY...

AT 1146 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THE 
SHOWERS AND THUNDERSTORMS DIMINISHING QUICKLY ACROSS ROCK COUNTY. 

THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT MIDNIGHT. 

A COLD FRONT MOVING THROUGH THE AREA WILL BRING COOLER AND DRIER 
WEATHER TO THE REGION BY TUESDAY. 

LAT...LON 4251 8937 4251 8879 4284 8878 4285 8936

$$
DAVIS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 11:22 PM CDTFlash Flood WarningMKXKenosha, Racine83 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.