Alert archive / Wisconsin / Tornado Warnings in 2007

Tornado Warning 5, NWS Milwaukee, WI

March 31, 2007Dane County, Iowa County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Mar 31, 2007, 7:44 PM CDT for Dane County, Iowa County, Wisconsin. It was in force for 31 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
Mar 31, 2007, 7:44 PM CDT (00:44 UTC)
Expired
Mar 31, 2007, 8:15 PM CDT
In force
31 min
Issued by
NWS Milwaukee, WI
Area
Counties, with a storm outline in the text

Counties Dane County, WI, Iowa County, WI

The radar

The Milwaukee radar (KMKX), 101 km from the middle of the area, began a volume at 00:47 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
Mar 31, 5:11 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.7 hours before the alert went out and 203 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 00:00Z on 2007-04-01Temperature 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 00:00Z on 2007-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 378 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
1215 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
378 m²/s²
0-3 km storm-relative helicity
492 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 010044
TORMKX
WIC025-049-010115-
/O.NEW.KMKX.TO.W.0005.070401T0044Z-070401T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
744 PM CDT SAT MAR 31 2007

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN IOWA COUNTY IN SOUTH CENTRAL WISCONSIN
  WESTERN DANE COUNTY IN SOUTH CENTRAL WISCONSIN

* UNTIL 815 PM CDT

* AT 739 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES
  SOUTHWEST OF BLACK EARTH...OR ABOUT 7 MILES NORTHWEST OF MOUNT
  HOREB...MOVING NORTHEAST AT 50 MPH.

* THE TORNADO WILL BE NEAR...
  MARXVILLE BY 755 PM CDT...
  7 MILES NORTHWEST OF DANE BY 805 PM CDT...

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.

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 4318 8996 4281 8997 4286 8965 4329 8937
      4329 8971 4322 8982

$$

BORGHOFF
2 follow-up statements
000 
WWUS53 KMKX 010053
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
753 PM CDT SAT MAR 31 2007

WIC025-049-010115-
/O.CON.KMKX.TO.W.0005.000000T0000Z-070401T0115Z/
IOWA-DANE-
753 PM CDT SAT MAR 31 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR WESTERN
DANE AND EASTERN IOWA COUNTIES...

AT 751 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR BLACK EARTH...OR
ABOUT 8 MILES SOUTH OF SAUK CITY...MOVING NORTHEAST AT 40 MPH.

THE TORNADO WILL BE NEAR...
  9 MILES NORTHWEST OF WAUNAKEE BY 805 PM CDT...
  DANE BY 810 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 4318 8996 4281 8997 4286 8965 4329 8937
      4329 8971 4322 8982

$$

ZAJDEL
000 
WWUS53 KMKX 010114
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
815 PM CDT SAT MAR 31 2007

WIC025-049-010122-
/O.EXP.KMKX.TO.W.0005.000000T0000Z-070401T0115Z/
IOWA-DANE-
815 PM CDT SAT MAR 31 2007

...THE TORNADO WARNING FOR WESTERN DANE AND EASTERN IOWA COUNTIES
EXPIRES AT 815 PM CDT...

THE TORNADO WARNING FOR WESTERN DANE AND EASTERN IOWA COUNTIES 
EXPIRES AT 815 PM CDT.  THE SEVERE THUNDERSTORM HAS WEAKENED. 
HOWEVER THUNDERSTORMS OVER DANE COUNTY WILL CONTINUE TO BE STRONG 
FOR THE NEXT FEW HOURS. A TORNADO WATCH REMAIUNS IN EFFECT UNTIL 12 
MIDNIGHT CDT.

LAT...LON 4318 8996 4281 8997 4286 8965 4329 8937
      4329 8971 4322 8982

$$

ZAJDEL

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 31, 7:09 PM CDTTornado WarningMKXIowa36 min
Mar 31, 7:21 PM CDTTornado WarningMKXSauk39 min
Mar 31, 8:03 PM CDTTornado WarningMKXColumbia, Sauk27 min
Mar 31, 8:18 PM CDTTornado WarningMKXDane27 min
Mar 31, 9:45 PM CDTSpecial Marine WarningMKX2 hr
Mar 31, 9:45 PM CDTSevere Thunderstorm WarningMKXKenosha, Racine, Walworth45 min

Nearby

Tornado Warnings in Wisconsin, 2007Every tornado warning in 2007Tornadoes 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.