Alert archive / Wisconsin / Tornado Warnings in 2007

Tornado Warning 7, NWS Milwaukee, WI

March 31, 2007Dane County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Mar 31, 2007, 8:18 PM CDT for Dane County, Wisconsin. It was in force for 27 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, 8:18 PM CDT (01:18 UTC)
Expired
Mar 31, 2007, 8:45 PM CDT
In force
27 min
Issued by
NWS Milwaukee, WI
Area
Counties, with a storm outline in the text

County Dane County, WI

The radar

The Milwaukee radar (KMKX), 77 km from the middle of the area, began a volume at 01:21 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, 1.3 hours before the alert went out and 186 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 010118
TORMKX
WIC025-010145-
/O.NEW.KMKX.TO.W.0007.070401T0118Z-070401T0145Z/

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

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL DANE COUNTY IN SOUTH CENTRAL WISCONSIN

* UNTIL 845 PM CDT

* AT 817 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  MIDDLETON...MOVING NORTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  WAUNAKEE AND MAPLE BLUFF BY 825 PM CDT...
  DE FOREST...WINDSOR AND 8 MILES NORTHWEST OF SUN PRAIRIE BY 835 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.

LAT...LON 4305 8962 4300 8941 4328 8912 4329 8957

$$

BORGHOFF
2 follow-up statements
000 
WWUS53 KMKX 010125
SVSMKX

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

WIC025-010145-
/O.CON.KMKX.TO.W.0007.000000T0000Z-070401T0145Z/
DANE-
825 PM CDT SAT MAR 31 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR NORTH
CENTRAL DANE COUNTY...

AT 821 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR MIDDLETON...MOVING
NORTHEAST AT 40 MPH.

THE TORNADO WILL BE NEAR...
  WINDSOR...DE FOREST...TOKEN CREEK AND MORRISONVILLE BY 835 PM
  CDT...
  EAST BRISTOL BY 845 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 4305 8962 4300 8941 4328 8912 4329 8957

$$

ZAJDEL
000 
WWUS53 KMKX 010144
SVSMKX

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

WIC025-010152-
/O.EXP.KMKX.TO.W.0007.000000T0000Z-070401T0145Z/
DANE-
844 PM CDT SAT MAR 31 2007

...THE TORNADO WARNING FOR NORTH CENTRAL DANE COUNTY EXPIRES AT 845
PM CDT...

THE TORNADO WARNING FOR NORTH CENTRAL DANE COUNTY EXPIRES AT 845 PM 
CDT. HOWEVER THUNDERSTORMS OVER CENTRAL DANE COUNTY WILL CONTINUE TO
BE STRONG FOR THE NEXT FEW HOURS. A TORNADO WATCH REMAINS IN EFFECT 
UNTIL 12 MIDNIGHT CDT.

LAT...LON 4305 8962 4300 8941 4328 8912 4329 8957

$$

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, 7:44 PM CDTTornado WarningMKXDane, Iowa31 min
Mar 31, 8:03 PM CDTTornado WarningMKXColumbia, Sauk27 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.