Alert archive / Wisconsin / Tornado Warnings in 2005

Tornado Warning 37, NWS Milwaukee, WI

August 18, 2005Walworth County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Aug 18, 2005, 8:42 PM CDT for Walworth County, Wisconsin. It was in force for 35 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
Aug 18, 2005, 8:42 PM CDT (01:42 UTC)
Expired
Aug 18, 2005, 9:17 PM CDT
In force
35 min
Issued by
NWS Milwaukee, WI
Area
Counties, with a storm outline in the text

County Walworth County, WI

The radar

The Milwaukee radar (KMKX), 23 km from the middle of the area, began a volume at 01:42 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
Aug 18, 5:50 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.7 hours before the alert went out and 192 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 2005-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 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 2005-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939Sfc1 km3 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
7 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
832 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
161 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 190142
TORMKX
WIC127-190215-
/O.NEW.KMKX.TO.W.0037.050819T0142Z-050819T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
842 PM CDT THU AUG 18 2005

THE NATIONAL WEATHER SERVICE IN MILWAUKEE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN WALWORTH COUNTY IN SOUTHEAST WISCONSIN

* UNTIL 915 PM CDT

* AT 837 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR EAST
  TROY...MOVING SOUTHEAST AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  HONEY CREEK AROUND 855 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT THURSDAY EVENING
FOR SOUTH CENTRAL WISCONSIN. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL 1100 PM CDT THURSDAY EVENING FOR SOUTHEASTERN WISCONSIN.

LAT...LON 4284 8851 4273 8860 4261 8830 4284 8830

$$

REM
3 follow-up statements
000 
WWUS53 KMKX 190147
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
844 PM CDT THU AUG 18 2005

WIC127-190215-
/O.CON.KMKX.TO.W.0037.000000T0000Z-050819T0215Z/
WALWORTH-
844 PM CDT THU AUG 18 2005

...A TORNADO WARNING CONTINUES UNTIL 915 PM CDT FOR WALWORTH
COUNTY...

AT 842 PM CDT...DOPPLER RADAR INDICATED A POTENTIAL TORNADO NEAR 
EAST TROY...MOVING EAST AT 25 MPH.  

TOWNS IN THE PATH OF THE POTENTIAL TORNADO INCLUDE 
  HONEY CREEK BY 855 PM CDT...
  EAST TROY BY 850 PM...

STORM SPOTTERS REPORTED ONE INCH HAIL JUST EAST OF EAST TROY AT 839 
PM.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT THURSDAY EVENING 
FOR SOUTH CENTRAL WISCONSIN. A TORNADO WATCH ALSO REMAINS IN EFFECT 
UNTIL 1100 PM CDT THURSDAY EVENING FOR SOUTHEASTERN WISCONSIN.

LAT...LON 4284 8851 4273 8860 4261 8830 4284 8830

$$
MBK
000 
WWUS53 KMKX 190203
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
901 PM CDT THU AUG 18 2005

WIC127-190215-
/O.CON.KMKX.TO.W.0037.000000T0000Z-050819T0215Z/
WALWORTH-
901 PM CDT THU AUG 18 2005

...A TORNADO WARNING CONTINUES UNTIL 915 PM CDT FOR WALWORTH
COUNTY...

AT 859 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POTENTIAL TORNADO.  THIS POTENTIAL TORNADO WAS LOCATED 
JUST EAST OF EAST TROY...MOVING EAST AT 30 MPH.  

SEVERE SPOTTERS REPORTED A FUNNEL CLOUD IN THE VICINITY OF HIGHWAY 
20...BETWEEN EAST TROY AND WATERFORD IN NORTHEAST WALWORTH COUNTY AT 
9 PM. 

OTHER LOCATIONS IN THE PATH OF THIS POTENTIAL TORNADO INCLUDE BUT 
ARE NOT LIMITED TO HONEY CREEK.

A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY 
EVENING FOR SOUTHEASTERN WISCONSIN.

LAT...LON 4284 8851 4273 8860 4261 8830 4284 8830

$$
MBK
000 
WWUS53 KMKX 190217
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
914 PM CDT THU AUG 18 2005

WIC127-190224-
/O.EXP.KMKX.TO.W.0037.000000T0000Z-050819T0215Z/
WALWORTH-
914 PM CDT THU AUG 18 2005

...THE TORNADO WARNING FOR WALWORTH COUNTY EXPIRES AT 915 PM CDT...

THE TORNADO WARNING FOR WALWORTH COUNTY HAS BEEN ALLOWED TO EXPIRE 
AT 915 PM.  THE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO HAS 
PUSHED EAST INTO RACINE COUNTY.  

WEAKER THUNDERSTORMS REMAIN OVER THE EAST TROY...POTTER LAKE AND 
WATERFORD AREAS.  THESE THUNDERSTORMS MAY PRODUCE WIND GUSTS TO 40 
MPH AND SMALL HAIL.  A SMALL CLUSTER OF STORMS WAS ALSO LOCATED JUST 
WEST OF LAKE GENEVA.  THESE STORMS WILL AFFECT LAKE GENEVA THROUGH 
10 PM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT THURSDAY EVENING
FOR SOUTHEASTERN WISCONSIN.

LAT...LON 4284 8851 4273 8860 4261 8830 4284 8830

$$
MBK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 7:15 PM CDTTornado WarningMKXDane, Jefferson63 min
Aug 18, 7:48 PM CDTTornado WarningMKXRock, Walworth57 min
Aug 18, 7:58 PM CDTSpecial Marine WarningMKX2 hr
Aug 18, 8:16 PM CDTSevere Thunderstorm WarningMKXJefferson, Waukesha44 min
Aug 18, 8:52 PM CDTTornado WarningMKXRacine53 min
Aug 18, 9:40 PM CDTTornado WarningMKXRacine22 min
Aug 18, 9:48 PM CDTSpecial Marine WarningMKX57 min

Nearby

Tornado Warnings in Wisconsin, 2005Every tornado warning in 2005Tornadoes in 2005

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.