Alert archive / Wisconsin / Tornado Warnings in 2011

Tornado Warning 20, NWS La Crosse, WI

May 22, 2011Clark County, Taylor County, Wisconsin

NWS La Crosse, WI issued this tornado warning at May 22, 2011, 5:07 PM CDT for Clark County, Taylor County, Wisconsin. It was in force for 38 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
May 22, 2011, 5:07 PM CDT (22:07 UTC)
Expired
May 22, 2011, 5:45 PM CDT
In force
38 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon

Counties Clark County, WI, Taylor County, WI

The radar

The La Crosse radar (KARX), 162 km from the middle of the area, began a volume at 22:10 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, 5:21 PM CDTFUNNEL CLOUD1 N Curtiss, WINORTH OF CURTISS.

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, 10.1 hours before the alert went out and 182 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.

166 
WFUS53 KARX 222207
TORARX
WIC019-119-222245-
/O.NEW.KARX.TO.W.0020.110522T2207Z-110522T2245Z/

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

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN CLARK COUNTY IN CENTRAL WISCONSIN...
  EASTERN TAYLOR COUNTY IN NORTH CENTRAL WISCONSIN...

* UNTIL 545 PM CDT

* AT 505 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 3 MILES WEST OF CURTISS...OR 16 MILES SOUTHWEST OF
  MEDFORD...MOVING NORTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  ABBOTSFORD AROUND 510 PM...
  DORCHESTER AROUND 515 PM...
  COUNTY ROADS A AND E AROUND 520 PM...
  THE TAYLOR COUNTY AIRPORT AND STETSONVILLE AROUND 525 PM...
  MEDFORD AND ESADORE LAKE AROUND 530 PM...
  GAD AROUND 535 PM...
  HIGHWAY 13 AND COUNTY ROAD M AROUND 540 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 4520 9004 4511 9013 4511 9019 4506 9019
      4503 9022 4503 9031 4495 9031 4488 9038
      4494 9062 4538 9033 4538 9005
TIME...MOT...LOC 2207Z 209DEG 33KT 4496 9049

$$

SHEA
3 follow-up statements
588 
WWUS53 KARX 222219 RRA
SVSARX

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

WIC019-119-222245-
/O.CON.KARX.TO.W.0020.000000T0000Z-110522T2245Z/
CLARK WI-TAYLOR WI-
519 PM CDT SUN MAY 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN TAYLOR AND
NORTHEASTERN CLARK COUNTIES UNTIL 545 PM CDT...

AT 515 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO LOCATED NEAR CURTISS...OR 12 MILES SOUTH OF MEDFORD...MOVING
NORTHEAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  DORCHESTER AROUND 525 PM...
  STETSONVILLE AROUND 530 PM...
  MEDFORD AND THE TAYLOR COUNTY AIRPORT AROUND 535 PM...
  GAD AROUND 540 PM...
  CHELSEA AND RIB LAKE AROUND 545 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 4520 9004 4511 9013 4511 9019 4506 9019
      4503 9022 4503 9031 4495 9031 4488 9038
      4494 9062 4538 9033 4538 9005
TIME...MOT...LOC 2220Z 218DEG 28KT 4500 9038

$$


SHEA
719 
WWUS53 KARX 222229
SVSARX

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

WIC019-222239-
/O.CAN.KARX.TO.W.0020.000000T0000Z-110522T2245Z/
CLARK WI-
529 PM CDT SUN MAY 22 2011

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

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

LAT...LON 4538 9005 4520 9004 4512 9012 4511 9019
      4506 9019 4503 9022 4503 9031 4504 9032
      4504 9055 4538 9033
TIME...MOT...LOC 2229Z 218DEG 28KT 4505 9032

$$

WIC119-222245-
/O.CON.KARX.TO.W.0020.000000T0000Z-110522T2245Z/
TAYLOR WI-
529 PM CDT SUN MAY 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN TAYLOR COUNTY
UNTIL 545 PM CDT...

AT 524 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
TORNADO LOCATED NEAR STETSONVILLE...OR 8 MILES SOUTH OF 
MEDFORD...MOVING NORTHEAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  MEDFORD AND THE TAYLOR COUNTY AIRPORT AROUND 535 PM...
  GAD AROUND 540 PM...
  CHELSEA AND RIB LAKE AROUND 545 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 IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS OCCASIONALLY PRODUCE TORNADOES...AND CAN DO SO QUICKLY.
MOVE INTO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS.

&&

LAT...LON 4538 9005 4520 9004 4512 9012 4511 9019
      4506 9019 4503 9022 4503 9031 4504 9032
      4504 9055 4538 9033
TIME...MOT...LOC 2229Z 218DEG 28KT 4505 9032

$$

SHEA
799 
WWUS53 KARX 222244
SVSARX

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

WIC119-222254-
/O.EXP.KARX.TO.W.0020.000000T0000Z-110522T2245Z/
TAYLOR WI-
544 PM CDT SUN MAY 22 2011

...THE TORNADO WARNING FOR EASTERN TAYLOR COUNTY WILL EXPIRE AT 545
PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS. HOWEVER...THE STORM REMAINS STRONG AND COULD PRODUCE SMALL
HAIL AND GUSTY WINDS...IN ADDITION TO LIGHTNING AND HEAVY RAIN.
IF IT APPEARS ANOTHER TORNADO IS DEVELOPING...A NEW WARNING MAY BE 
NEEDED.

A TORNADO WATCH REMAINS IN EFFECT. CONDITIONS REMAIN FAVORABLE FOR
ADDITIONAL SEVERE THUNDERSTORMS TO DEVELOP THAT MAY PRODUCE
TORNADOES.

LAT...LON 4538 9005 4520 9004 4512 9012 4511 9019
      4506 9019 4503 9022 4503 9031 4504 9032
      4504 9055 4538 9033
TIME...MOT...LOC 2244Z 218DEG 28KT 4517 9019

$$


SHEA

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, 5:28 PM CDTTornado WarningARXJuneau, Monroe32 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.