Alert archive / Wisconsin / Tornado Warnings in 2011

Tornado Warning 21, NWS La Crosse, WI

May 22, 2011Juneau County, Monroe County, Wisconsin

NWS La Crosse, WI issued this tornado warning at May 22, 2011, 5:28 PM CDT for Juneau County, Monroe County, Wisconsin. It was in force for 32 min. 2 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
May 22, 2011, 5:28 PM CDT (22:28 UTC)
Expired
May 22, 2011, 6:00 PM CDT
In force
32 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon

Counties Juneau County, WI, Monroe County, WI

The radar

The La Crosse radar (KARX), 96 km from the middle of the area, began a volume at 22:28 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

TimeReportWhereRemark
May 22, 5:49 PM CDTTORNADOMather, WINUMEROUS TREES BLOCKING HIGHWAY 173 AT MATHER.
May 22, 5:56 PM CDTTSTM WND DMG3 E Finley, WIA HIGH POWER TRANSMISSION LINE COLLAPSED NEAR COUNTY ROAD F AND 13TH AVE ALONG THE FINLEY AND ARMENIA TOWNSHIP LINES.

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
May 22, 12:07 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.5 hours before the alert went out and 162 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 2011-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 351 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 2011-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
351 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
1006 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

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

433 
WFUS53 KARX 222228
TORARX
WIC057-081-222300-
/O.NEW.KARX.TO.W.0021.110522T2228Z-110522T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
528 PM CDT SUN MAY 22 2011

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN JUNEAU COUNTY IN CENTRAL WISCONSIN...
  NORTHEASTERN MONROE COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 600 PM CDT

* AT 524 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO NEAR VALLEY JUNCTION...OR 5 MILES NORTHEAST OF TOMAH...
  MOVING NORTHEAST AT 40 MPH. THIS WARNING EXTENDS THE PREVIOUS
  TORNADO WARNING FOR JUNEAU AND MONROE COUNTIES.

* THE TORNADO WILL BE NEAR...
  NORMAY RIDGE AROUND 535 PM...
  MATHER AROUND 540 PM...
  THE SPRAGUE MATHER FLOWAGE AROUND 545 PM...
  SPRAGUE AND FINLEY AROUND 550 PM...
  NEW MINER AROUND 555 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS! CARS AND MOBILE HOMES SHOULD BE ABANDONED
FOR A STURDY BUILDING. AS A LAST RESORT...LAY FLAT IN A DITCH AND
COVER YOUR HEAD.

&&

LAT...LON 4415 8993 4417 8997 4414 8997 4401 9049
      4409 9056 4416 9036 4415 9032 4418 9031
      4426 9008 4425 8991 4423 8990 4421 8993
      4420 8991 4419 8993 4419 8990
TIME...MOT...LOC 2228Z 245DEG 36KT 4407 9041

$$

BOYNE
3 follow-up statements
277 
WWUS53 KARX 222235
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
535 PM CDT SUN MAY 22 2011

WIC057-081-222300-
/O.CON.KARX.TO.W.0021.000000T0000Z-110522T2300Z/
JUNEAU WI-MONROE WI-
535 PM CDT SUN MAY 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN MONROE AND
NORTHERN JUNEAU COUNTIES UNTIL 600 PM CDT...

AT 533 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO LOCATED NEAR NORMAY RIDGE...OR 10 MILES NORTHEAST OF TOMAH...
MOVING NORTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  THE SPRAGUE MATHER FLOWAGE AROUND 545 PM...
  SPRAGUE AND FINLEY AROUND 550 PM...
  NEW MINER AROUND 555 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS! CARS AND MOBILE HOMES SHOULD BE ABANDONED
FOR A STURDY BUILDING. AS A LAST RESORT...LAY FLAT IN A DITCH AND
COVER YOUR HEAD.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM SUNDAY EVENING FOR
NORTHEAST IOWA AND SOUTHEAST MINNESOTA AND WESTERN WISCONSIN.

&&

LAT...LON 4415 8993 4417 8997 4414 8997 4401 9049
      4409 9056 4416 9036 4415 9032 4418 9031
      4426 9008 4425 8991 4423 8990 4421 8993
      4420 8991 4419 8993 4419 8990
TIME...MOT...LOC 2235Z 245DEG 36KT 4410 9032

$$

BOYNE
992 
WWUS53 KARX 222241
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
541 PM CDT SUN MAY 22 2011

WIC057-081-222300-
/O.CON.KARX.TO.W.0021.000000T0000Z-110522T2300Z/
JUNEAU WI-MONROE WI-
541 PM CDT SUN MAY 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN MONROE AND
NORTHERN JUNEAU COUNTIES UNTIL 600 PM CDT...

AT 538 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO LOCATED NEAR NORMAY RIDGE...OR 14 MILES NORTHEAST OF TOMAH...
MOVING NORTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  SPRAGUE AND FINLEY AROUND 550 PM...
  NEW MINER AROUND 555 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS! CARS AND MOBILE HOMES SHOULD BE ABANDONED
FOR A STURDY BUILDING. AS A LAST RESORT...LAY FLAT IN A DITCH AND
COVER YOUR HEAD.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM SUNDAY EVENING FOR
NORTHEAST IOWA AND SOUTHEAST MINNESOTA AND WESTERN WISCONSIN.

&&

LAT...LON 4415 8993 4417 8997 4414 8997 4401 9049
      4409 9056 4416 9036 4415 9032 4418 9031
      4426 9008 4425 8991 4423 8990 4421 8993
      4420 8991 4419 8993 4419 8990
TIME...MOT...LOC 2241Z 245DEG 36KT 4412 9024

$$

BOYNE
269 
WWUS53 KARX 222248
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
548 PM CDT SUN MAY 22 2011

WIC081-222258-
/O.CAN.KARX.TO.W.0021.000000T0000Z-110522T2300Z/
MONROE WI-
548 PM CDT SUN MAY 22 2011

...THE TORNADO WARNING FOR NORTHEASTERN MONROE COUNTY IS CANCELLED...

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL THIS EVENING.

LAT...LON 4418 8992 4415 8993 4417 8997 4414 8997
      4408 9031 4418 9031 4426 9009 4425 8991
      4423 8990 4421 8993 4420 8991 4419 8993
      4419 8990
TIME...MOT...LOC 2248Z 249DEG 49KT 4416 9015

$$

WIC057-222300-
/O.CON.KARX.TO.W.0021.000000T0000Z-110522T2300Z/
JUNEAU WI-
548 PM CDT SUN MAY 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN JUNEAU COUNTY
UNTIL 600 PM CDT...

AT 547 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO LOCATED NEAR THE SPRAGUE MATHER FLOWAGE...OR 20 MILES
NORTHEAST OF TOMAH...MOVING EAST AT 55 MPH.

* THE TORNADO WILL BE NEAR...
  NEW MINER AROUND 555 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS! CARS AND MOBILE HOMES SHOULD BE ABANDONED
FOR A STURDY BUILDING. AS A LAST RESORT...LAY FLAT IN A DITCH AND
COVER YOUR HEAD.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM SUNDAY EVENING FOR
NORTHEAST IOWA AND SOUTHEAST MINNESOTA AND WESTERN WISCONSIN.

&&

LAT...LON 4418 8992 4415 8993 4417 8997 4414 8997
      4408 9031 4418 9031 4426 9009 4425 8991
      4423 8990 4421 8993 4420 8991 4419 8993
      4419 8990
TIME...MOT...LOC 2248Z 249DEG 49KT 4416 9015

$$

BOYNE

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 2:16 PM CDTSevere Thunderstorm WarningARXJuneau, Monroe44 min
May 22, 2:48 PM CDTTornado WarningARXAdams, Juneau27 min
May 22, 4:16 PM CDTTornado WarningARXLa Crosse, Vernon29 min
May 22, 4:39 PM CDTSevere Thunderstorm WarningARXLa Crosse, Monroe, Vernon66 min
May 22, 4:49 PM CDTSevere Thunderstorm WarningARXCrawford, Grant56 min
May 22, 4:56 PM CDTTornado WarningARXMonroe34 min
May 22, 5:04 PM CDTTornado WarningARXTaylor26 min
May 22, 5:05 PM CDTAreal Flood AdvisoryARXLa Crosse95 min
May 22, 5:05 PM CDTSevere Thunderstorm WarningARXJackson, La Crosse, Monroe25 min
May 22, 5:07 PM CDTTornado WarningARXClark, Taylor38 min
May 22, 5:30 PM CDTSevere Thunderstorm WarningARXJackson, Juneau30 min
May 22, 5:41 PM CDTSevere Thunderstorm WarningARXRichland49 min
May 22, 5:57 PM CDTTornado WarningARXJuneau19 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.