Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 39, NWS Milwaukee, WI

July 9, 2007Dodge County, Washington County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 9, 2007, 11:08 AM CDT for Dodge County, Washington County, Wisconsin. It was in force for 37 min. 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
Jul 9, 2007, 11:08 AM CDT (16:08 UTC)
Expired
Jul 9, 2007, 11:45 AM CDT
In force
37 min
Issued by
NWS Milwaukee, WI
Area
Counties, with a storm outline in the text

Counties Dodge County, WI, Washington County, WI

The radar

The Milwaukee radar (KMKX), 52 km from the middle of the area, began a volume at 16:10 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
Jul 9, 11:31 AM CDTHAIL 0.755 N Hartford, WI

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, 4.1 hours before the alert went out and 121 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 2007-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 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 12:00Z on 2007-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
25 J/kg
Mixed-layer CIN
-115 J/kg
Mixed-layer LCL
831 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
23 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 
WUUS53 KMKX 091607
SVRMKX
WIC027-131-091645-
/O.NEW.KMKX.SV.W.0039.070709T1608Z-070709T1645Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1108 AM CDT MON JUL 9 2007

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN DODGE COUNTY IN SOUTHEAST WISCONSIN
  WASHINGTON COUNTY IN SOUTHEAST WISCONSIN

* UNTIL 1145 AM CDT

* AT 1106 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  HARTFORD...AND MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SLINGER BY 1120 AM CDT...
  6 MILES SOUTH OF WEST BEND BY 1125 AM CDT...
  JACKSON BY 1130 AM CDT...
  7 MILES SOUTH OF NEWBURG BY 1140 AM CDT...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4354 8842 4321 8868 4321 8808 4353 8804

$$

GEHRING
3 follow-up statements
000 
WWUS53 KMKX 091621
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1121 AM CDT MON JUL 9 2007

WIC027-131-091645-
/O.CON.KMKX.SV.W.0039.000000T0000Z-070709T1645Z/
DODGE-WASHINGTON-
1121 AM CDT MON JUL 9 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM CDT
FOR WASHINGTON AND EASTERN DODGE COUNTIES...

AT 1119 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM BOLTONVILLE TO HARTFORD TO
ASHIPPUN...OR ALONG A LINE EXTENDING FROM KEWASKUM TO HARTFORD TO 7
MILES SOUTHWEST OF HARTFORD...MOVING EAST AT 20 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  WEST BEND AND SLINGER BY 1130 AM CDT...
  FILLMORE BY 1135 AM CDT...
  HUBERTUS...NEWBURG AND JACKSON BY 1140 AM CDT...
  RICHFIELD...BEAR VALLEY AND GERMANTOWN BY 1145 AM CDT...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4354 8842 4321 8868 4321 8808 4353 8804

$$
000 
WWUS53 KMKX 091635
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1135 AM CDT MON JUL 9 2007

WIC027-091645-
/O.CAN.KMKX.SV.W.0039.000000T0000Z-070709T1645Z/
DODGE-
1135 AM CDT MON JUL 9 2007

...THE SEVERE THUNDERSTORM WARNING FOR DODGE COUNTY IS CANCELLED...

LAT...LON 4354 8838 4320 8841 4321 8808 4353 8804

$$

WIC131-091645-
/O.CON.KMKX.SV.W.0039.000000T0000Z-070709T1645Z/
WASHINGTON-
1135 AM CDT MON JUL 9 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM CDT
FOR WASHINGTON COUNTY...

AT 1131 AM CDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60
MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM FILLMORE
TO SLINGER TO 9 MILES SOUTH OF HARTFORD...OR ALONG A LINE EXTENDING
FROM 10 MILES NORTHWEST OF SAUKVILLE TO SLINGER TO OKAUCHEE LAKE...
MOVING EAST AT 20 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  NEWBURG BY 1140 AM CDT...
  JACKSON...HUBERTUS...RICHFIELD AND BEAR VALLEY BY 1145 AM CDT...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4354 8838 4320 8841 4321 8808 4353 8804

$$

GEHRING
000 
WWUS53 KMKX 091644
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1142 AM CDT MON JUL 9 2007

WIC131-091652-
/O.EXP.KMKX.SV.W.0039.000000T0000Z-070709T1645Z/
WASHINGTON-
1142 AM CDT MON JUL 9 2007

...THE SEVERE THUNDERSTORM WARNING FOR WASHINGTON COUNTY EXPIRES AT
1145 AM CDT...

THE THUNDERSTORM COMPLEX HAS SLIGHTLY WEAKENED AND IS PRODUCING
VERY HEAVY RAIN...PEA SIZE HAIL...AND WIND GUSTS TO 40 MPH. 
THE SEVERE THUNDERSTORM WARNING FOR WASHINGTON COUNTY WILL BE
ALLOWED TO EXPIRE. 

LAT...LON 4354 8838 4320 8841 4321 8808 4353 8804

$$

GEHRING

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 10:45 AM CDTSevere Thunderstorm WarningMKXDane, Dodge, Jefferson46 min
Jul 9, 11:26 AM CDTSevere Thunderstorm WarningMKXWaukesha34 min
Jul 9, 12:55 PM CDTSevere Thunderstorm WarningMKXJefferson, Rock, Walworth41 min
Jul 9, 1:39 PM CDTSevere Thunderstorm WarningMKXWalworth66 min
Jul 9, 1:56 PM CDTSevere Thunderstorm WarningMKXKenosha, Racine64 min
Jul 9, 2:33 PM CDTSpecial Marine WarningMKX57 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2007Every severe thunderstorm 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.