Alert archive / Wisconsin / Tornado Warnings in 2009

Tornado Warning 3, NWS Milwaukee, WI

June 8, 2009Waukesha County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jun 8, 2009, 3:32 PM CDT for Waukesha County, Wisconsin. It was in force for 43 min. 4 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
Jun 8, 2009, 3:32 PM CDT (20:32 UTC)
Expired
Jun 8, 2009, 4:15 PM CDT
In force
43 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon

County Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 30 km from the middle of the area, began a volume at 20:34 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
Jun 8, 3:38 PM CDTTORNADO1 Wsw Mukwonago, WIMINIMAL WEAK TORNADO TRAVELED FROM 1.6 WSW MUKWONAGO EASTWARD TO 1.5 MILES EAST OF MUKWONAGO BY 342 PM. NOT A CONTINOUS PATH. TREE DAMAGE NOTED. UNKNOWN IF THERE WAS STRUCTURAL DAMAGE. PRELIM RATED AS AN EF0 WITH WINDS OF 65 MPH. MOST LIKELY A RAIN-WRAPPED TOR
Jun 8, 3:40 PM CDTFUNNEL CLOUDMukwonago, WIFUNNEL CLOUD REPORTED NORTH OF MUKWONAGO ON I43
Jun 8, 3:47 PM CDTHAIL 1.5Mukwonago, WI1.5 HAIL MEASURED BY HAM OPERATOR
Jun 8, 3:51 PM CDTTSTM WND DMG2 S Mukwonago, WILOTS OF TREE DAMAGE REPORTED BY NWS EMPLOYEES

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 8, 1:23 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.5 hours before the alert went out and 179 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 2009-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLEL10008507005003002001001 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 2009-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
4 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
440 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
212 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KMKX 082032
TORMKX
WIC133-082115-
/O.NEW.KMKX.TO.W.0003.090608T2032Z-090608T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
332 PM CDT MON JUN 8 2009

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN WAUKESHA COUNTY IN SOUTHEAST WISCONSIN

* UNTIL 415 PM CDT

* AT 330 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR POTTER LAKE...OR NEAR MUKWONAGO...AND MOVING
  EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MUKWONAGO...
  BIG BEND...
  MUSKEGO...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4284 8806 4284 8842 4290 8842 4295 8806
TIME...MOT...LOC 2033Z 262DEG 26KT 4286 8838

$$

CRAVEN
3 follow-up statements
000 
WWUS53 KMKX 082040
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
340 PM CDT MON JUN 8 2009

WIC133-082115-
/O.CON.KMKX.TO.W.0003.000000T0000Z-090608T2115Z/
WAUKESHA WI-
340 PM CDT MON JUN 8 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
SOUTHEASTERN WAUKESHA COUNTY...

AT 340 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR MUKWONAGO...MOVING
EAST AT 30 MPH.

LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...BIG BEND AND
MUSKEGO.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING PING 
PONG SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4284 8806 4284 8837 4290 8833 4295 8806
TIME...MOT...LOC 2040Z 262DEG 26KT 4287 8831

$$

CRAVEN
000 
WWUS53 KMKX 082051
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
351 PM CDT MON JUN 8 2009

WIC133-082115-
/O.CON.KMKX.TO.W.0003.000000T0000Z-090608T2115Z/
WAUKESHA WI-
351 PM CDT MON JUN 8 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
SOUTHEASTERN WAUKESHA COUNTY...

AT 347 PM CDT...TRAINED SKYWARN WEATHER SPOTTERS REPORTED A FUNNEL 
CLOUD AND PING PONG SIZED HAIL ALONG I-43 NEAR MUKWONAGO. THIS 
POSSIBLE TORNADO WAS LOCATED NEAR BIG BEND...OR NEAR 
MUKWONAGO...MOVING EAST AT 30 MPH.

LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...MUSKEGO.  A NEW 
TORNADO WARNING MAY BE NEEDED SOON FOR SOUTHERN MILWAUKEE COUNTY. 

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF 
BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

LAT...LON 4291 8824 4295 8806 4284 8806 4284 8828
TIME...MOT...LOC 2050Z 262DEG 26KT 4288 8821

$$

CRAVEN
000 
WWUS53 KMKX 082108
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
408 PM CDT MON JUN 8 2009

WIC133-082118-
/O.EXP.KMKX.TO.W.0003.000000T0000Z-090608T2115Z/
WAUKESHA WI-
408 PM CDT MON JUN 8 2009

...THE TORNADO WARNING FOR SOUTHEASTERN WAUKESHA COUNTY EXPIRES AT
415 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA INTO MILWAUKEE COUNTY.

LAT...LON 4291 8824 4295 8806 4284 8806 4284 8828
TIME...MOT...LOC 2108Z 262DEG 26KT 4290 8804

$$

CRAVEN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 9:30 PM CDTMarine Dense Fog AdvisoryMKX21 hr
Jun 8, 2:04 PM CDTSevere Thunderstorm WarningMKXDane, Green, Rock26 min
Jun 8, 2:28 PM CDTSevere Thunderstorm WarningMKXDane, Jefferson, Rock47 min
Jun 8, 3:15 PM CDTAreal Flood AdvisoryMKXRock, Walworth80 min
Jun 8, 3:21 PM CDTSevere Thunderstorm WarningMKXJefferson, Walworth, Waukesha24 min
Jun 8, 3:38 PM CDTSevere Thunderstorm WarningMKXRacine37 min
Jun 8, 3:55 PM CDTSpecial Marine WarningMKX83 min
Jun 8, 3:58 PM CDTSevere Thunderstorm WarningMKXKenosha, Racine32 min
Jun 8, 4:00 PM CDTAreal Flood AdvisoryMKXKenosha, Milwaukee, Racine, Walworth, Waukesha56 min
Jun 8, 4:03 PM CDTTornado WarningMKXMilwaukee, Racine, Waukesha27 min

Nearby

Tornado Warnings in Wisconsin, 2009Every tornado warning in 2009Tornadoes in 2009

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.