Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 92, NWS Milwaukee, WI

June 21, 20115 counties in Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 21, 2011, 3:10 PM CDT for 5 counties in Wisconsin. It was in force for 50 min. 5 reports 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, 3:10 PM CDT (20:10 UTC)
Expired: Jun 21, 2011, 4:00 PM CDT
In force: 50 min
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Dodge County, WI, Milwaukee County, WI, Ozaukee County, WI, Washington County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 54 km from the middle of the area, began a volume at 20:13 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

Time	Report	Where	Remark
Jun 21, 3:10 PM CDT	TSTM WND DMG	1 Se Stone Bank, WI	MULTIPLE LARGE TREES DOWN...INCLUDING ONE ON A HOUSE AND ONE THAT CRUSHED A CAR. WIND DAMAGE IN THE VICINITY OF OAKLAND ROAD...NORTH OF STATE HWY 16 AND COUNTY RD C. TIME ESTIMATED FROM RADAR.
Jun 21, 3:13 PM CDT	TSTM WND GST 70	1 S Brookfield, WI
Jun 21, 3:27 PM CDT	TSTM WND GST 55	1 N Hartford, WI	DOWNDRAFT WINDS ESTIMATED BETWEEN 55-60 MPH...WALL CLOUD REPORTED
Jun 21, 3:33 PM CDT	TSTM WND DMG	2 E Holy Hill, WI	TREE DOWN ON HOUSE...TIME ESTIMATED FROM RADAR...DELAYED REPORT
Jun 21, 3:43 PM CDT	TSTM WND GST 60	2 Se Holy Hill, WI	6 INCH DIAMETER TREE DOWN...MULTIPLE POWER LINES REPORTED DOWN...NO POWER CURRENTLY

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.

Issued	Product	Office	Lasted
Jun 21, 2:11 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.2 hours before the alert went out and 132 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

217 
WUUS53 KMKX 212010
SVRMKX
WIC027-079-089-131-133-212100-
/O.NEW.KMKX.SV.W.0092.110621T2010Z-110621T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
310 PM CDT TUE JUN 21 2011

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN DODGE COUNTY IN SOUTHEAST WISCONSIN...
  NORTHWESTERN MILWAUKEE COUNTY IN SOUTHEAST WISCONSIN...
  OZAUKEE COUNTY IN SOUTHEAST WISCONSIN...
  WASHINGTON COUNTY IN SOUTHEAST WISCONSIN...
  WAUKESHA COUNTY IN SOUTHEAST WISCONSIN...

* UNTIL 400 PM CDT

* AT 309 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN
  EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR OKAUCHEE LAKE...AND
  MOVING NORTH AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MERTON...SUSSEX...BUTLER AND WAUWATOSA AROUND 315 PM CDT.
  LANNON...MENOMONEE FALLS AND MILWAUKEE TIMMERMAN AIRPORT AROUND 320
  PM CDT.
  BROWN DEER AROUND 325 PM CDT.
  SLINGER...HARTFORD...MEQUON AND THIENSVILLE AROUND 330 PM CDT.
  JACKSON AND CEDARBURG AROUND 335 PM CDT.
  WEST BEND AROUND 340 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE NORTH
LAKE...HUBERTUS...HOLY HILL...SAINT LAWRENCE...ALLENTON...
KOHLSVILLE...WAYNE AND BOLTONVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT TUESDAY EVENING
FOR SOUTHEASTERN WISCONSIN.

LAT...LON 4346 8780 4336 8787 4331 8788 4326 8791
      4322 8790 4290 8814 4302 8854 4312 8854
      4354 8847 4353 8779
TIME...MOT...LOC 2010Z 201DEG 38KT 4312 8840
WIND...HAIL 70MPH <.75IN

$$

DAVIS

3 follow-up statements

666 
WWUS53 KMKX 212019
SVSMKX

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

WIC027-079-089-131-133-212100-
/O.CON.KMKX.SV.W.0092.000000T0000Z-110621T2100Z/
MILWAUKEE WI-OZAUKEE WI-DODGE WI-WAUKESHA WI-WASHINGTON WI-
319 PM CDT TUE JUN 21 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WASHINGTON...
NORTHERN WAUKESHA...SOUTHEASTERN DODGE...OZAUKEE AND NORTHWESTERN
MILWAUKEE COUNTIES UNTIL 400 PM CDT...

AT 313 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 70 MPH.  THIS STORM WAS LOCATED NEAR OKAUCHEE LAKE...MOVING NORTH
AT 45 MPH.

IN ADDITION...AT 254 PM NUMEROUS TREES WERE REPORTED DOWN NEAR 
MUKWONAGO WITH THIS STORM.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  BROWN DEER AROUND 325 PM CDT.
  HARTFORD...MEQUON...THIENSVILLE AND SLINGER AROUND 330 PM CDT.
  JACKSON AND CEDARBURG AROUND 335 PM CDT.
  WEST BEND AND GRAFTON AROUND 340 PM CDT.
  WEST BEND AIRPORT...NEWBURG...THERESA AND SAUKVILLE AROUND 345 PM
  CDT.
  KEWASKUM AND FREDONIA AROUND 350 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE
HUBERTUS...HOLY HILL...RICHFIELD...SAINT LAWRENCE...ALLENTON...
KOHLSVILLE...WAYNE AND BOLTONVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4346 8780 4338 8787 4331 8788 4326 8791
      4322 8790 4293 8812 4309 8854 4354 8847
      4353 8779
TIME...MOT...LOC 2018Z 201DEG 38KT 4320 8836
WIND...HAIL 70MPH <.75IN

$$

MRC

197 
WWUS53 KMKX 212031
SVSMKX

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

WIC027-079-089-131-133-212100-
/O.CON.KMKX.SV.W.0092.000000T0000Z-110621T2100Z/
MILWAUKEE WI-OZAUKEE WI-DODGE WI-WAUKESHA WI-WASHINGTON WI-
331 PM CDT TUE JUN 21 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WASHINGTON...
NORTHEASTERN WAUKESHA...SOUTHEASTERN DODGE...OZAUKEE AND NORTHWESTERN
MILWAUKEE COUNTIES UNTIL 400 PM CDT...

AT 327 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 70 MPH.  THIS STORM WAS LOCATED NEAR SLINGER...MOVING NORTH AT 45
MPH.

THIS STORM PRODUCED WIND GUSTS UP TO 70 MPH NEAR BROOKFIELD. 

THE SEVERE THUNDERSTORM WILL BE NEAR...
  JACKSON AND CEDARBURG AROUND 335 PM CDT.
  WEST BEND AND GRAFTON AROUND 340 PM CDT.
  WEST BEND AIRPORT...NEWBURG...THERESA AND SAUKVILLE AROUND 345 PM
  CDT.
  KEWASKUM AND FREDONIA AROUND 350 PM CDT.
  BELGIUM AROUND 355 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE
ALLENTON...KOHLSVILLE...WAYNE AND BOLTONVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4346 8780 4338 8787 4331 8788 4326 8791
      4322 8790 4298 8808 4318 8853 4354 8847
      4353 8779
TIME...MOT...LOC 2029Z 201DEG 38KT 4331 8830
WIND...HAIL 70MPH <.75IN

$$

MRC

676 
WWUS53 KMKX 212043
SVSMKX

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

WIC027-079-133-212052-
/O.CAN.KMKX.SV.W.0092.000000T0000Z-110621T2100Z/
MILWAUKEE WI-DODGE WI-WAUKESHA WI-
343 PM CDT TUE JUN 21 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WAUKESHA...
SOUTHEASTERN DODGE AND NORTHWESTERN MILWAUKEE COUNTIES IS
CANCELLED...

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

LAT...LON 4346 8780 4338 8787 4331 8788 4326 8791
      4322 8790 4320 8791 4319 8799 4334 8842
      4337 8842 4337 8840 4354 8840 4353 8779
TIME...MOT...LOC 2042Z 201DEG 42KT 4347 8818

$$

WIC089-131-212100-
/O.CON.KMKX.SV.W.0092.000000T0000Z-110621T2100Z/
OZAUKEE WI-WASHINGTON WI-
343 PM CDT TUE JUN 21 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WASHINGTON AND
OZAUKEE COUNTIES UNTIL 400 PM CDT...

AT 341 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR WEST BEND...MOVING NORTH AT 50
MPH.

IN ADDITION...AN ESTIMATED WIND GUST UP TO 60 MPH WAS REPORTED 1 
MILE NORTH OF HARTFORD AT 327 PM.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  BELGIUM AROUND 350 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE
BOLTONVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4346 8780 4338 8787 4331 8788 4326 8791
      4322 8790 4320 8791 4319 8799 4334 8842
      4337 8842 4337 8840 4354 8840 4353 8779
TIME...MOT...LOC 2042Z 201DEG 42KT 4347 8818
WIND...HAIL 60MPH <.75IN

$$

MRC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 8:10 PM CDT	Dense Fog Advisory	MKX	Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington and 1 more	16 hr
Jun 21, 1:40 AM CDT	Areal Flood Advisory	MKX	Waukesha	3 hr
Jun 21, 12:05 PM CDT	Dense Fog Advisory	MKX	Ozaukee, Sheboygan	10 hr
Jun 21, 2:38 PM CDT	Special Marine Warning	MKX		82 min
Jun 21, 2:42 PM CDT	Severe Thunderstorm Warning	MKX	Dodge, Jefferson, Walworth, Washington, Waukesha	33 min
Jun 21, 2:45 PM CDT	Tornado Warning	MKX	Marquette	30 min
Jun 21, 3:06 PM CDT	Tornado Warning	MKX	Green Lake, Marquette	24 min
Jun 21, 3:14 PM CDT	Tornado Warning	MKX	Dodge, Fond du Lac, Green Lake	31 min
Jun 21, 3:24 PM CDT	Areal Flood Advisory	MKX	Green Lake, Marquette	3 hr
Jun 21, 3:27 PM CDT	Tornado Warning	MKX	Green Lake, Marquette	33 min
Jun 21, 3:41 PM CDT	Marine Dense Fog Advisory	MKX		6 hr
Jun 21, 3:42 PM CDT	Areal Flood Advisory	MKX	Milwaukee, Ozaukee, Washington, Waukesha	3 hr
Jun 21, 3:44 PM CDT	Tornado Warning	MKX	Fond du Lac, Green Lake	31 min
Jun 21, 3:47 PM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac, Ozaukee, Sheboygan, Washington	43 min
Jun 21, 3:48 PM CDT	Special Marine Warning	MKX		62 min
Jun 21, 3:59 PM CDT	Tornado Warning	MKX	Green Lake	31 min
Jun 21, 4:49 PM CDT	Special Marine Warning	MKX		40 min
Jun 21, 6:57 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha, Racine	33 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2011 Every severe thunderstorm warning 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.