Alert archive / Wisconsin / Tornado Warnings in 2009

Tornado Warning 15, NWS Milwaukee, WI

July 27, 2009Dodge County, Fond du Lac County, Washington County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jul 27, 2009, 6:13 PM CDT for Dodge County, Fond du Lac County, Washington County, Wisconsin. It was in force for 40 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
Jul 27, 2009, 6:13 PM CDT (23:13 UTC)
Expired
Jul 27, 2009, 6:53 PM CDT
In force
40 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon

Counties Dodge County, WI, Fond du Lac County, WI, Washington County, WI

The radar

The Milwaukee radar (KMKX), 71 km from the middle of the area, began a volume at 23:13 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 watch it was issued in

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

IssuedProductOfficeLasted
Jul 27, 2:41 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.2 hours before the alert went out and 101 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 2009-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 74 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 2009-07-27The 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
74 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1153 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
98 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 272313
TORMKX
WIC027-039-131-280015-
/O.NEW.KMKX.TO.W.0015.090727T2313Z-090728T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
613 PM CDT MON JUL 27 2009

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN DODGE COUNTY IN SOUTHEAST WISCONSIN
  SOUTHEASTERN FOND DU LAC COUNTY IN EAST CENTRAL WISCONSIN
  NORTHWESTERN WASHINGTON COUNTY IN SOUTHEAST WISCONSIN

* UNTIL 715 PM CDT

* AT 612 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR THERESA...OR 6 MILES NORTHEAST OF
  MAYVILLE...AND MOVING NORTHEAST AT 10 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
  ASHFORD AND 4 MILES NORTHWEST OF WAYNE BY 635 PM CDT...
  CAMPBELLSPORT BY 655 PM CDT...
  3 MILES SOUTHEAST OF WAUCOUSTA AND 4 MILES NORTHWEST OF NEW FANE BY
  710 PM CDT...

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 4367 8823 4352 8815 4348 8841 4358 8851
TIME...MOT...LOC 2313Z 242DEG 10KT 4354 8843

$$

GEHRING
3 follow-up statements
000 
WWUS53 KMKX 272326
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
626 PM CDT MON JUL 27 2009

WIC027-039-131-280015-
/O.CON.KMKX.TO.W.0015.000000T0000Z-090728T0015Z/
FOND DU LAC WI-DODGE WI-WASHINGTON WI-
626 PM CDT MON JUL 27 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
NORTHWESTERN WASHINGTON...NORTHEASTERN DODGE AND SOUTHEASTERN FOND DU
LAC COUNTIES...

AT 625 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS POSSIBLE TORNADO WAS 
LOCATED NEAR ASHFORD...OR 8 MILES WEST OF KEWASKUM...MOVING EAST AT 
15 MPH.

THE POSSIBLE TORNADO WILL BE NEAR...
WAYNE BY 635 PM CDT...
CAMPBELLSPORT BY 650 PM CDT...
KEWASKUM BY 655 PM CDT...
WAUCOUSTA BY 700 PM CDT...
NEW FANE BY 710 PM CDT...

ALSO...HAIL TO ONE INCH AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE 
WITH THIS THUNDERSTORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

&&

LAT...LON 4367 8823 4352 8815 4348 8841 4358 8851
TIME...MOT...LOC 2326Z 256DEG 11KT 4356 8837

$$

MBK
000 
WWUS53 KMKX 272340
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
640 PM CDT MON JUL 27 2009

WIC027-272350-
/O.CAN.KMKX.TO.W.0015.000000T0000Z-090728T0015Z/
DODGE WI-
640 PM CDT MON JUL 27 2009

...THE TORNADO WARNING FOR NORTHEASTERN DODGE COUNTY IS CANCELLED...

LAT...LON 4361 8839 4367 8823 4352 8815 4348 8839
TIME...MOT...LOC 2340Z 256DEG 11KT 4355 8826

$$

WIC039-131-280015-
/O.CON.KMKX.TO.W.0015.000000T0000Z-090728T0015Z/
FOND DU LAC WI-WASHINGTON WI-
640 PM CDT MON JUL 27 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
NORTHWESTERN WASHINGTON AND SOUTHEASTERN FOND DU LAC COUNTIES...

AT 637 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS POSSIBLE TORNADO WAS 
LOCATED NEAR KEWASKUM...MOVING EAST AT 15 MPH.

THE TORNADO WILL BE NEAR...
KEWASKUM BY 645 PM CDT...
NEW FANE BY 700 PM CDT...

HAIL TO GOLFBALL SIZE AND DAMAGING WINDS ARE LIKELY WITH THIS 
THUNDERSTORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

&&

LAT...LON 4361 8839 4367 8823 4352 8815 4348 8839
TIME...MOT...LOC 2340Z 256DEG 11KT 4355 8826

$$
MBK
000 
WWUS53 KMKX 272353
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
653 PM CDT MON JUL 27 2009

WIC039-131-280003-
/O.CAN.KMKX.TO.W.0015.000000T0000Z-090728T0015Z/
FOND DU LAC WI-WASHINGTON WI-
653 PM CDT MON JUL 27 2009

...THE TORNADO WARNING FOR NORTHWESTERN WASHINGTON AND SOUTHEASTERN
FOND DU LAC COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARS TO BE SEVERE...HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS
THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM CDT.

LAT...LON 4361 8839 4367 8823 4352 8815 4348 8839
TIME...MOT...LOC 2353Z 256DEG 11KT 4356 8821

$$

MBK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 4:22 PM CDTSevere Thunderstorm WarningMKXMarquette83 min
Jul 27, 5:04 PM CDTTornado WarningMKXMarquette71 min
Jul 27, 5:57 PM CDTTornado WarningMKXColumbia, Green Lake, Marquette63 min
Jul 27, 6:02 PM CDTTornado WarningMKXIowa, Sauk73 min
Jul 27, 6:15 PM CDTFlash Flood WarningMKXIowa, Sauk3 hr
Jul 27, 6:39 PM CDTTornado WarningMKXColumbia, Dodge36 min
Jul 27, 6:59 PM CDTSevere Thunderstorm WarningMKXIowa, Lafayette61 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.