Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 70, NWS Milwaukee, WI

July 26, 201210 counties in Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 26, 2012, 1:26 AM CDT for 10 counties in Wisconsin. It was in force for 64 min. 8 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: Jul 26, 2012, 1:26 AM CDT (06:26 UTC)
Expired: Jul 26, 2012, 2:30 AM CDT
In force: 64 min
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Dodge County, WI, Fond du Lac County, WI, Kenosha County, WI, Milwaukee County, WI, Ozaukee County, WI, Racine County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 52 km from the middle of the area, began a volume at 06:28 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
Jul 26, 1:37 AM CDT	TSTM WND GST 47	1 S Hartford, WI
Jul 26, 1:48 AM CDT	TSTM WND GST 54	2 E Jackson, WI
Jul 26, 1:53 AM CDT	TSTM WND DMG	1 N Richfield, WI	LARGE HIGHWAY SIGNS BLOWN DOWN AT HWY 60 AND HWY 41 ESTIMATED WIND SPEED OF 60 MPH
Jul 26, 1:53 AM CDT	TSTM WND DMG	3 Nw Big Bend, WI	ANCHORED DOWN GAZEBO BLOWN OVER IN VERNON ON HIGHWAY 164.
Jul 26, 1:54 AM CDT	TSTM WND GST 50	1 Ne Waukesha, WI
Jul 26, 1:54 AM CDT	TSTM WND GST 59	Waukesha Airport, WI
Jul 26, 2:00 AM CDT	TSTM WND GST 45	3 W Mequon, WI
Jul 26, 2:02 AM CDT	TSTM WND GST 49	Cedarburg, WI

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
Jul 25, 6:38 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 6.4 hours before the alert went out and 172 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: 2643 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 1451 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 16.9

Open this sounding in Storm Lab

The text

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

343 
WUUS53 KMKX 260626
SVRMKX
WIC027-039-059-079-089-101-117-127-131-133-260730-
/O.NEW.KMKX.SV.W.0070.120726T0626Z-120726T0730Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
126 AM CDT THU JUL 26 2012

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN DODGE COUNTY IN SOUTHEAST WISCONSIN...
  SOUTHEASTERN FOND DU LAC COUNTY IN EAST CENTRAL WISCONSIN...
  KENOSHA COUNTY IN SOUTHEAST WISCONSIN...
  MILWAUKEE COUNTY IN SOUTHEAST WISCONSIN...
  OZAUKEE COUNTY IN SOUTHEAST WISCONSIN...
  RACINE COUNTY IN SOUTHEAST WISCONSIN...
  SOUTHERN SHEBOYGAN COUNTY IN EAST CENTRAL WISCONSIN...
  EASTERN WALWORTH COUNTY IN SOUTHEAST WISCONSIN...
  WASHINGTON COUNTY IN SOUTHEAST WISCONSIN...
  WAUKESHA COUNTY IN SOUTHEAST WISCONSIN...

* UNTIL 230 AM CDT

* AT 119 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM WAUPUN TO WILLIAMS BAY...
  AND MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EAST TROY...OKAUCHEE LAKE...TWIN LAKES...DELAFIELD...WALES...
  MUKWONAGO...HARTLAND...HARTFORD...CAMP LAKE...PADDOCK LAKE...
  DOWNTOWN WAUKESHA...PEWAUKEE...SLINGER...WIND LAKE...SUSSEX...
  MUSKEGO...NEW BERLIN...UNION GROVE...KEWASKUM AND BROOKFIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS!

THIS IS AN EXTREMELY DANGEROUS SITUATION WITH TORNADO LIKE WIND
SPEEDS EXPECTED. MOBILE HOMES AND HIGH PROFILE VEHICLES ARE
ESPECIALLY SUSCEPTIBLE TO WINDS OF THIS MAGNITUDE AND MAY BE
OVERTURNED. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS. THESE STORMS HAVE THE
POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

&&

LAT...LON 4269 8777 4265 8781 4256 8780 4249 8782
      4250 8855 4362 8847 4361 8776 4328 8791
      4316 8788 4314 8789 4311 8788 4299 8789
      4297 8785 4287 8783 4275 8776
TIME...MOT...LOC 0626Z 245DEG 45KT 4371 8867 4259 8843
WIND...HAIL 70MPH 1.00IN

$$

REM

5 follow-up statements

827 
WWUS53 KMKX 260643
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
143 AM CDT THU JUL 26 2012

WIC027-039-059-079-089-101-117-127-131-133-260730-
/O.CON.KMKX.SV.W.0070.000000T0000Z-120726T0730Z/
MILWAUKEE WI-OZAUKEE WI-RACINE WI-DODGE WI-FOND DU LAC WI-WAUKESHA 
WI-WALWORTH WI-SHEBOYGAN WI-KENOSHA WI-WASHINGTON WI-
143 AM CDT THU JUL 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WASHINGTON...
KENOSHA...SOUTHERN SHEBOYGAN...EASTERN WALWORTH...WAUKESHA...
SOUTHEASTERN FOND DU LAC...EASTERN DODGE...RACINE...OZAUKEE AND
MILWAUKEE COUNTIES UNTIL 230 AM CDT...

AT 137 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM LOMIRA TO 6 MILES NORTH OF MERTON
TO NORTH PRAIRIE TO POTTER LAKE TO GENOA CITY...MOVING EAST AT 50
MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  WEST BEND AIRPORT...WAUKESHA AIRPORT...WIND LAKE AND WEST BEND
  AROUND 150 AM CDT.
  UNION GROVE...PADDOCK LAKE...NEWBURG AND NEW BERLIN AROUND 155 AM
  CDT.
  MILWAUKEE COUNTY ZOO...MILWAUKEE TIMMERMAN AIRPORT...MEQUON AND
  WEST ALLIS AROUND 200 AM CDT.
  GLENDALE...FRANKLIN AND KENOSHA AIRPORT AROUND 205 AM CDT.

OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE NEW FANE...
BEAR VALLEY...WATERFORD...GERMANTOWN...SALEM...NORTH CAPE...
KANSASVILLE...FILLMORE...BRISTOL AND BOLTONVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4269 8777 4265 8781 4256 8780 4249 8782
      4250 8855 4362 8847 4361 8776 4328 8791
      4316 8788 4314 8789 4311 8788 4299 8789
      4297 8785 4287 8783 4275 8776
TIME...MOT...LOC 0642Z 271DEG 45KT 4362 8832 4322 8825
          4293 8840 4284 8831 4250 8829
WIND...HAIL 70MPH 1.00IN

$$

WOOD

930 
WWUS53 KMKX 260656
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
156 AM CDT THU JUL 26 2012

WIC027-039-059-079-089-101-117-127-131-133-260730-
/O.CON.KMKX.SV.W.0070.000000T0000Z-120726T0730Z/
MILWAUKEE WI-OZAUKEE WI-RACINE WI-DODGE WI-FOND DU LAC WI-WAUKESHA 
WI-WALWORTH WI-SHEBOYGAN WI-KENOSHA WI-WASHINGTON WI-
156 AM CDT THU JUL 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WASHINGTON...
KENOSHA...SOUTHERN SHEBOYGAN...EASTERN WALWORTH...WAUKESHA...
SOUTHEASTERN FOND DU LAC...EASTERN DODGE...RACINE...OZAUKEE AND
MILWAUKEE COUNTIES UNTIL 230 AM CDT...

AT 151 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM CAMPBELLSPORT TO JACKSON TO
BROOKFIELD TO BIG BEND TO WATERFORD NORTH TO EAGLE LAKE TO TWIN
LAKES...MOVING EAST AT 50 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  GRAFTON...GLENDALE...FRANKLIN AND KENOSHA AIRPORT AROUND 205 AM
  CDT.
  MILWAUKEE HOAN BRIDGE...MILWAUKEE INTERNATIONAL AIRPORT...PLEASANT
  PRAIRIE AND PORT WASHINGTON AROUND 210 AM CDT.
  RACINE BATTEN AIRPORT...DOWNTOWN KENOSHA...DOWNTOWN RACINE AND
  SOUTH MILWAUKEE AROUND 215 AM CDT.
  CEDAR GROVE AROUND 220 AM CDT.

OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE WAUBEKA...
FILLMORE...BEECHWOOD...MITCHELL PARK DOMES...MILLER PARK...
FRANKLIN...GLENDALE...SHOREWOOD...SILVER CREEK AND SAINT FRANCIS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4269 8777 4265 8781 4256 8780 4249 8782
      4250 8855 4362 8847 4361 8776 4328 8791
      4316 8788 4314 8789 4311 8788 4299 8789
      4297 8785 4287 8783 4275 8776
TIME...MOT...LOC 0656Z 271DEG 45KT 4360 8826 4331 8806
          4307 8809 4291 8817 4280 8814 4271 8806
          4252 8816
WIND...HAIL 70MPH 1.00IN

$$

WOOD

882 
WWUS53 KMKX 260709
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
209 AM CDT THU JUL 26 2012

WIC027-039-059-079-089-101-117-127-131-133-260730-
/O.CON.KMKX.SV.W.0070.000000T0000Z-120726T0730Z/
MILWAUKEE WI-OZAUKEE WI-RACINE WI-DODGE WI-FOND DU LAC WI-WAUKESHA 
WI-WALWORTH WI-SHEBOYGAN WI-KENOSHA WI-WASHINGTON WI-
209 AM CDT THU JUL 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WASHINGTON...
KENOSHA...SOUTHERN SHEBOYGAN...EASTERN WALWORTH...WAUKESHA...
SOUTHEASTERN FOND DU LAC...EASTERN DODGE...RACINE...OZAUKEE AND
MILWAUKEE COUNTIES UNTIL 230 AM CDT...

AT 205 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 5 MILES NORTHWEST OF RANDOM LAKE
TO 7 MILES SOUTHEAST OF PORT WASHINGTON TO WHITEFISH BAY TO MILWAUKEE
INTERNATIONAL AIRPORT TO 5 MILES SOUTHEAST OF WIND LAKE TO PLEASANT
PRAIRIE...MOVING EAST AT 55 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  DOWNTOWN KENOSHA...STURTEVANT AND CEDAR GROVE AROUND 215 AM CDT.
  RACINE BATTEN AIRPORT AND DOWNTOWN RACINE AROUND 220 AM CDT.

OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE
FRANKSVILLE...ELMWOOD PARK AND NORTH BAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4269 8777 4265 8781 4256 8780 4249 8782
      4250 8855 4362 8847 4361 8776 4328 8791
      4316 8788 4314 8789 4311 8788 4299 8789
      4297 8785 4287 8783 4275 8776
TIME...MOT...LOC 0709Z 271DEG 47KT 4359 8797 4329 8774
          4312 8784 4295 8786 4279 8799 4252 8794
WIND...HAIL 70MPH 1.00IN

$$

WOOD

215 
WWUS53 KMKX 260718
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
218 AM CDT THU JUL 26 2012

WIC027-039-127-131-133-260726-
/O.CAN.KMKX.SV.W.0070.000000T0000Z-120726T0730Z/
DODGE WI-FOND DU LAC WI-WAUKESHA WI-WALWORTH WI-WASHINGTON WI-
218 AM CDT THU JUL 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR WASHINGTON...EASTERN
WALWORTH...WAUKESHA...SOUTHEASTERN FOND DU LAC AND EASTERN DODGE
COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA.

LAT...LON 4265 8781 4249 8782 4250 8810 4361 8803
      4361 8776 4328 8791 4316 8788 4299 8789
      4297 8785 4287 8783 4275 8776
TIME...MOT...LOC 0716Z 271DEG 46KT 4330 8775 4295 8777
          4275 8792 4252 8783

$$

WIC059-079-089-101-117-260730-
/O.CON.KMKX.SV.W.0070.000000T0000Z-120726T0730Z/
MILWAUKEE WI-OZAUKEE WI-RACINE WI-SHEBOYGAN WI-KENOSHA WI-
218 AM CDT THU JUL 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
KENOSHA...SOUTH CENTRAL SHEBOYGAN...EASTERN RACINE...OZAUKEE AND
MILWAUKEE COUNTIES UNTIL 230 AM CDT...

AT 214 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 7 MILES SOUTHEAST OF PORT
WASHINGTON TO CUDAHY TO STURTEVANT TO WINTHROP HARBOR...MOVING EAST
AT 55 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  DOWNTOWN RACINE AROUND 225 AM CDT.

OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE NORTH BAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4265 8781 4249 8782 4250 8810 4361 8803
      4361 8776 4328 8791 4316 8788 4299 8789
      4297 8785 4287 8783 4275 8776
TIME...MOT...LOC 0716Z 271DEG 46KT 4330 8775 4295 8777
          4275 8792 4252 8783
WIND...HAIL 70MPH 1.00IN

$$

WOOD

215 
WWUS53 KMKX 260728
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
228 AM CDT THU JUL 26 2012

WIC059-079-089-101-117-260738-
/O.EXP.KMKX.SV.W.0070.000000T0000Z-120726T0730Z/
MILWAUKEE WI-OZAUKEE WI-RACINE WI-SHEBOYGAN WI-KENOSHA WI-
228 AM CDT THU JUL 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN KENOSHA...SOUTH
CENTRAL SHEBOYGAN...EASTERN RACINE...OZAUKEE AND MILWAUKEE COUNTIES
WILL EXPIRE AT 230 AM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA. HOWEVER...GUSTY WINDS TO 50 MPH ARE STILL POSSIBLE WITH 
THESE THUNDERSTORMS.

LAT...LON 4265 8781 4249 8782 4250 8810 4361 8803
      4361 8776 4328 8791 4316 8788 4299 8789
      4297 8785 4287 8783 4275 8776
TIME...MOT...LOC 0728Z 274DEG 44KT 4329 8755 4294 8757
          4278 8769 4274 8772 4251 8764

$$

WOOD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 8:26 PM CDT	Special Marine Warning	MKX		64 min
Jul 25, 9:34 PM CDT	Severe Thunderstorm Warning	MKX	Iowa	26 min
Jul 25, 9:51 PM CDT	Severe Thunderstorm Warning	MKX	Iowa, Lafayette	32 min
Jul 25, 11:20 PM CDT	Severe Thunderstorm Warning	MKX	Iowa, Lafayette	40 min
Jul 25, 11:39 PM CDT	Severe Thunderstorm Warning	MKX	Lafayette	51 min
Jul 25, 11:39 PM CDT	Severe Thunderstorm Warning	MKX	Dodge, Fond du Lac, Washington	21 min
Jul 25, 11:52 PM CDT	Severe Thunderstorm Warning	MKX	Iowa, Lafayette, Sauk	38 min
Jul 26, 12:00 AM CDT	Severe Thunderstorm Warning	MKX	Dodge, Fond du Lac	30 min
Jul 26, 12:10 AM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dane, Green, Rock	35 min
Jul 26, 12:35 AM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dodge, Jefferson, Rock, Walworth, Waukesha	70 min
Jul 26, 12:41 AM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac	49 min
Jul 26, 12:53 AM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dane, Green, Rock	37 min
Jul 26, 1:13 AM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac, Sheboygan	32 min
Jul 26, 1:24 AM CDT	Special Marine Warning	MKX		96 min
Jul 26, 2:20 PM CDT	Special Marine Warning	MKX		85 min
Jul 26, 2:47 PM CDT	Severe Thunderstorm Warning	MKX	Sheboygan	28 min
Jul 26, 2:56 PM CDT	Severe Thunderstorm Warning	MKX	Ozaukee, Washington	34 min
Jul 26, 3:03 PM CDT	Special Marine Warning	MKX		72 min
Jul 26, 3:38 PM CDT	Special Marine Warning	MKX		2 hr
Jul 26, 3:46 PM CDT	Special Marine Warning	MKX		44 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2012 Every severe thunderstorm warning in 2012

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.