Alert archive / Wisconsin / Tornado Warnings in 2011

Tornado Warning 22, NWS La Crosse, WI

May 22, 2011Juneau County, Wisconsin

NWS La Crosse, WI issued this tornado warning at May 22, 2011, 5:57 PM CDT for Juneau County, Wisconsin. It was in force for 19 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 22, 2011, 5:57 PM CDT (22:57 UTC)
Expired: May 22, 2011, 6:16 PM CDT
In force: 19 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon

County Juneau County, WI

The radar

The La Crosse radar (KARX), 104 km from the middle of the area, began a volume at 23:01 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 22, 12:07 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.0 hours before the alert went out and 155 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: 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.

279 
WFUS53 KARX 222257
TORARX
WIC057-222330-
/O.NEW.KARX.TO.W.0022.110522T2257Z-110522T2330Z/

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

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL JUNEAU COUNTY IN CENTRAL WISCONSIN...

* UNTIL 630 PM CDT

* AT 556 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 4 MILES EAST OF FINLEY...OR 16 MILES SOUTHWEST OF WISCONSIN
  RAPIDS...MOVING NORTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  RURAL EXTREME NORTHEASTERN JUNEAU COUNTY AT 610 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 4421 8993 4420 8991 4415 9011 4425 9022
      4426 9022 4425 8991 4423 8990
TIME...MOT...LOC 2257Z 243DEG 36KT 4422 9004

$$

BOYNE

2 follow-up statements

527 
WWUS53 KARX 222306
SVSARX

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

WIC057-222330-
/O.CON.KARX.TO.W.0022.000000T0000Z-110522T2330Z/
JUNEAU WI-
606 PM CDT SUN MAY 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL JUNEAU
COUNTY UNTIL 630 PM CDT...

AT 601 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO LOCATED 7 MILES EAST OF FINLEY...OR 13 MILES SOUTHWEST OF
WISCONSIN RAPIDS...MOVING NORTHEAST AT 40 MPH.

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 4421 8993 4420 8991 4415 9011 4425 9022
      4426 9022 4425 8991 4423 8990
TIME...MOT...LOC 2306Z 243DEG 36KT 4426 8992

$$

BOYNE

653 
WWUS53 KARX 222316
SVSARX

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

WIC057-222325-
/O.CAN.KARX.TO.W.0022.000000T0000Z-110522T2330Z/
JUNEAU WI-
616 PM CDT SUN MAY 22 2011

...THE TORNADO WARNING FOR NORTH CENTRAL JUNEAU COUNTY IS
CANCELLED...

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

A TORNADO WATCH REMAINS IN EFFECT THROUGH 8 PM CDT. CONDITIONS 
REMAIN FAVORABLE FOR ADDITIONAL SEVERE THUNDERSTORMS TO DEVELOP THAT 
MAY PRODUCE TORNADOES.

LAT...LON 4421 8993 4420 8991 4415 9011 4425 9022
      4426 9022 4425 8991 4423 8990
TIME...MOT...LOC 2315Z 243DEG 36KT 4430 8981

$$

BOYNE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 2:16 PM CDT	Severe Thunderstorm Warning	ARX	Juneau, Monroe	44 min
May 22, 2:48 PM CDT	Tornado Warning	ARX	Adams, Juneau	27 min
May 22, 4:16 PM CDT	Tornado Warning	ARX	La Crosse, Vernon	29 min
May 22, 4:39 PM CDT	Severe Thunderstorm Warning	ARX	La Crosse, Monroe, Vernon	66 min
May 22, 4:49 PM CDT	Severe Thunderstorm Warning	ARX	Crawford, Grant	56 min
May 22, 4:56 PM CDT	Tornado Warning	ARX	Monroe	34 min
May 22, 5:04 PM CDT	Tornado Warning	ARX	Taylor	26 min
May 22, 5:05 PM CDT	Areal Flood Advisory	ARX	La Crosse	95 min
May 22, 5:05 PM CDT	Severe Thunderstorm Warning	ARX	Jackson, La Crosse, Monroe	25 min
May 22, 5:07 PM CDT	Tornado Warning	ARX	Clark, Taylor	38 min
May 22, 5:28 PM CDT	Tornado Warning	ARX	Juneau, Monroe	32 min
May 22, 5:30 PM CDT	Severe Thunderstorm Warning	ARX	Jackson, Juneau	30 min
May 22, 5:41 PM CDT	Severe Thunderstorm Warning	ARX	Richland	49 min

Nearby

Tornado Warnings in Wisconsin, 2011 Every tornado warning in 2011 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.