Alert archive / Wisconsin / Tornado Warnings in 2006

Tornado Warning 7, NWS Green Bay, WI

June 18, 2006Calumet County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Jun 18, 2006, 6:26 PM CDT for Calumet County, Wisconsin. It was in force for 34 min. 1 report 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 18, 2006, 6:26 PM CDT (23:26 UTC)
Expired
Jun 18, 2006, 7:00 PM CDT
In force
34 min
Issued by
NWS Green Bay, WI
Area
Counties, with a storm outline in the text

County Calumet County, WI

The radar

The Green Bay radar (KGRB), 39 km from the middle of the area, began a volume at 23:27 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 18, 6:44 PM CDTHAIL 1Brillion, WI

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

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.4 hours before the alert went out and 38 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 2006-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 488 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 2006-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.19395878Sfc1 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
488 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
927 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KGRB 182327
TORGRB
WIC015-190000-
/O.NEW.KGRB.TO.W.0007.060618T2326Z-060619T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
626 PM CDT SUN JUN 18 2006

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* TORNADO WARNING FOR...
  CALUMET COUNTY IN EAST CENTRAL WISCONSIN

* UNTIL 700 PM CDT

* AT 622 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO 11 MILES WEST OF BRILLION...OR ABOUT
  9 MILES SOUTHEAST OF APPLETON...MOVING EAST AT 30 MPH. A WATERSPOUT
  WAS REPORTED ON NORTHEAST LAKE WINNEBAGO AT AROUND 620 PM CDT.

* THE TORNADO WILL BE NEAR...
  BRILLION BY 640 PM...

MOVE TO A BASEMENT OR SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
BUILDING.

THESE THUNDERSTORMS COULD PRODUCE WATERSPOUTS ON LAKE WINNEBAGO.
WINDS CAN EXCEED 60 MPH IN A WATERSPOUT. IF YOU SEE A WATERSPOUT...
MOVE TO SHORE IMMEDIATELY. IF THE WATERSPOUT REACHES SHORE...DAMAGING
WINDS COULD AFFECT STRUCTURES ON LAND. IF INSIDE A BUILDING...MOVE TO
THE LOWEST FLOOR AND STAY AWAY FROM WINDOWS.

LAT...LON 4424 8838 4406 8839 4403 8805 4423 8806

$$

KIECKBUSCH
1 follow-up statement
000 
WWUS53 KGRB 182339
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
639 PM CDT SUN JUN 18 2006

WIC015-190000-
/O.CON.KGRB.TO.W.0007.000000T0000Z-060619T0000Z/
CALUMET WI-
639 PM CDT SUN JUN 18 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR CALUMET
COUNTY...

AT 635 PM...DOPPLER RADAR CONTINUED TO INDICATE A POSSIBLE TORNADO.  
THIS POSSIBLE TORNADO WAS LOCATED 2 MILES NORTH OF HILBERT...OR 
ABOUT 14 MILES SOUTHEAST OF APPLETON...MOVING EAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  BRILLION AND POTTER BY 645 PM...

DOPPLER RADAR INDICATES STRONG ROTATION WITH 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 4424 8838 4406 8839 4403 8805 4423 8806

$$

KIECKBUSCH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 4:30 PM CDTMarine Weather StatementGRB90 min
Jun 18, 4:47 PM CDTSpecial Marine WarningGRB88 min
Jun 18, 5:46 PM CDTMarine Weather StatementGRB89 min
Jun 18, 6:05 PM CDTSevere Thunderstorm WarningGRBCalumet, Outagamie29 min
Jun 18, 6:11 PM CDTSevere Thunderstorm WarningGRBDoor38 min
Jun 18, 6:18 PM CDTSpecial Marine WarningGRB87 min
Jun 18, 6:44 PM CDTSevere Thunderstorm WarningGRBManitowoc61 min
Jun 18, 6:58 PM CDTSevere Thunderstorm WarningGRBCalumet32 min

Nearby

Tornado Warnings in Wisconsin, 2006Every tornado warning in 2006Tornadoes in 2006

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.