Alert archive / Wisconsin / Tornado Warnings in 2011

Tornado Warning 13, NWS Milwaukee, WI

June 21, 2011Green Lake County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jun 21, 2011, 3:59 PM CDT for Green Lake County, Wisconsin. It was in force for 31 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 21, 2011, 3:59 PM CDT (20:59 UTC)
Expired
Jun 21, 2011, 4:30 PM CDT
In force
31 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon

County Green Lake County, WI

The radar

The Green Bay radar (KGRB), 101 km from the middle of the area, began a volume at 21:02 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 21, 4:14 PM CDTFUNNEL CLOUDBerlin, WITWO REPORTS JUST SOUTH OF BERLIN...RELAYED BY EMERGENCY MANAGEMENT

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

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, 9.0 hours before the alert went out and 101 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.

109 
WFUS53 KMKX 212059
TORMKX
WIC047-212130-
/O.NEW.KMKX.TO.W.0013.110621T2059Z-110621T2130Z/

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

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN GREEN LAKE COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 430 PM CDT

* AT 355 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR PRINCETON...OR 9 MILES SOUTHWEST OF
  BERLIN...AND MOVING NORTH AT 30 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
  BERLIN AROUND 410 PM CDT.

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 4381 8893 4381 8917 4388 8917 4398 8917
      4399 8890
TIME...MOT...LOC 2059Z 181DEG 25KT 4389 8905

$$

DAVIS
3 follow-up statements
502 
WWUS53 KMKX 212110
SVSMKX

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

WIC047-212130-
/O.CON.KMKX.TO.W.0013.000000T0000Z-110621T2130Z/
GREEN LAKE WI-
410 PM CDT TUE JUN 21 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN GREEN LAKE COUNTY
UNTIL 430 PM CDT...

AT 409 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR BERLIN...MOVING NORTH AT 25 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  BERLIN AROUND 420 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.

&&

LAT...LON 4381 8893 4388 8917 4398 8917 4399 8890
TIME...MOT...LOC 2110Z 201DEG 20KT 4392 8898

$$

MRC
301 
WWUS53 KMKX 212123
SVSMKX

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

WIC047-212130-
/O.CON.KMKX.TO.W.0013.000000T0000Z-110621T2130Z/
GREEN LAKE WI-
423 PM CDT TUE JUN 21 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL GREEN LAKE
COUNTY UNTIL 430 PM CDT...

AT 418 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR BERLIN...MOVING NORTH AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.

&&

LAT...LON 4384 8892 4389 8909 4398 8908 4399 8890
TIME...MOT...LOC 2123Z 201DEG 20KT 4399 8894

$$

MRC
405 
WWUS53 KMKX 212126
SVSMKX

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

WIC047-212136-
/O.EXP.KMKX.TO.W.0013.000000T0000Z-110621T2130Z/
GREEN LAKE WI-
426 PM CDT TUE JUN 21 2011

...THE TORNADO WARNING FOR NORTH CENTRAL GREEN LAKE COUNTY WILL
EXPIRE AT 430 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 9 PM.

LAT...LON 4384 8892 4389 8909 4398 8908 4399 8890
TIME...MOT...LOC 2126Z 201DEG 20KT 4401 8893

$$

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, 3:06 PM CDTTornado WarningMKXGreen Lake, Marquette24 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, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.