Alert archive / Wisconsin / Tornado Warnings in 2011

Tornado Warning 9, NWS Milwaukee, WI

June 21, 2011Green Lake County, Marquette County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jun 21, 2011, 3:06 PM CDT for Green Lake County, Marquette County, Wisconsin. It was in force for 24 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
Jun 21, 2011, 3:06 PM CDT (20:06 UTC)
Expired
Jun 21, 2011, 3:30 PM CDT
In force
24 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon

Counties Green Lake County, WI, Marquette County, WI

The radar

The Milwaukee radar (KMKX), 110 km from the middle of the area, began a volume at 20:09 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
Jun 21, 2:11 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.1 hours before the alert went out and 110 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 2011-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 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 2011-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 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
56 J/kg
Mixed-layer CIN
-282 J/kg
Mixed-layer LCL
464 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
261 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.8

Open this sounding in Storm Lab

The text

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

842 
WFUS53 KMKX 212006
TORMKX
WIC047-077-212030-
/O.NEW.KMKX.TO.W.0009.110621T2006Z-110621T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
306 PM CDT TUE JUN 21 2011

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN GREEN LAKE COUNTY IN SOUTH CENTRAL WISCONSIN...
  NORTHEASTERN MARQUETTE COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 330 PM CDT

* AT 304 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR PRINCETON...OR 17 MILES SOUTHWEST OF
  BERLIN...AND MOVING NORTH AT 30 MPH.

* THIS TORNADIC STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN
  MARQUETTE AND NORTHWESTERN GREEN LAKE COUNTIES...INCLUDING THE
  FOLLOWING LOCATIONS NESHKORO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A
BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE.
AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO
THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING
DEBRIS.

&&

LAT...LON 4375 8916 4378 8930 4399 8926 4398 8897
TIME...MOT...LOC 2007Z 198DEG 28KT 4383 8920

$$

DAVIS
1 follow-up statement
438 
WWUS53 KMKX 212014
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
314 PM CDT TUE JUN 21 2011

WIC047-077-212030-
/O.CON.KMKX.TO.W.0009.000000T0000Z-110621T2030Z/
GREEN LAKE WI-MARQUETTE WI-
314 PM CDT TUE JUN 21 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN MARQUETTE AND
NORTHWESTERN GREEN LAKE COUNTIES UNTIL 330 PM CDT...

AT 313 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR PRINCETON...OR 13 MILES SOUTHWEST OF BERLIN...
MOVING NORTH AT 30 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN
MARQUETTE AND NORTHWESTERN GREEN LAKE COUNTIES...INCLUDING THE
FOLLOWING LOCATIONS NESHKORO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4375 8916 4378 8930 4399 8926 4398 8897
TIME...MOT...LOC 2015Z 198DEG 28KT 4389 8917

$$

MRC

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 8:10 PM CDTDense Fog AdvisoryMKXKenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington and 1 more16 hr
Jun 21, 1:40 AM CDTAreal Flood AdvisoryMKXWaukesha3 hr
Jun 21, 12:05 PM CDTDense Fog AdvisoryMKXOzaukee, Sheboygan10 hr
Jun 21, 2:38 PM CDTSpecial Marine WarningMKX82 min
Jun 21, 2:42 PM CDTSevere Thunderstorm WarningMKXDodge, Jefferson, Walworth, Washington, Waukesha33 min
Jun 21, 2:45 PM CDTTornado WarningMKXMarquette30 min
Jun 21, 3:10 PM CDTSevere Thunderstorm WarningMKXDodge, Milwaukee, Ozaukee, Washington, Waukesha50 min
Jun 21, 3:14 PM CDTTornado WarningMKXDodge, Fond du Lac, Green Lake31 min
Jun 21, 3:24 PM CDTAreal Flood AdvisoryMKXGreen Lake, Marquette3 hr
Jun 21, 3:27 PM CDTTornado WarningMKXGreen Lake, Marquette33 min
Jun 21, 3:41 PM CDTMarine Dense Fog AdvisoryMKX6 hr
Jun 21, 3:42 PM CDTAreal Flood AdvisoryMKXMilwaukee, Ozaukee, Washington, Waukesha3 hr
Jun 21, 3:44 PM CDTTornado WarningMKXFond du Lac, Green Lake31 min
Jun 21, 3:47 PM CDTSevere Thunderstorm WarningMKXFond du Lac, Ozaukee, Sheboygan, Washington43 min
Jun 21, 3:48 PM CDTSpecial Marine WarningMKX62 min
Jun 21, 3:59 PM CDTTornado WarningMKXGreen Lake31 min
Jun 21, 4:49 PM CDTSpecial Marine WarningMKX40 min
Jun 21, 6:57 PM CDTSevere Thunderstorm WarningMKXKenosha, Racine33 min

Nearby

Tornado Warnings in Wisconsin, 2011Every tornado warning in 2011Tornadoes in 2011

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.