Alert archive / Wisconsin / Tornado Warnings in 2011

Tornado Warning 8, NWS La Crosse, WI

April 10, 2011Adams County, Juneau County, Wisconsin

NWS La Crosse, WI issued this tornado warning at Apr 10, 2011, 6:57 PM CDT for Adams County, Juneau County, Wisconsin. It was in force for 33 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: Apr 10, 2011, 6:57 PM CDT (23:57 UTC)
Expired: Apr 10, 2011, 7:30 PM CDT
In force: 33 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon

Counties Adams County, WI, Juneau County, WI

The radar

The La Crosse radar (KARX), 117 km from the middle of the area, began a volume at 23:59 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
Apr 10, 7:25 PM CDT	HAIL 0.88	2 S Friendship, WI	DIME HAIL IN ADAMS
Apr 10, 7:27 PM CDT	HAIL 0.75	Adams, 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
Apr 10, 3:19 PM CDT	Tornado Watch PDS	SPC	7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 12.0 hours before the alert went out and 141 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: -264 J/kg
Mixed-layer LCL: 799 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

635 
WFUS53 KARX 102357
TORARX
WIC001-057-110030-
/O.NEW.KARX.TO.W.0008.110410T2357Z-110411T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
657 PM CDT SUN APR 10 2011

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN ADAMS COUNTY IN CENTRAL WISCONSIN...
  CENTRAL JUNEAU COUNTY IN CENTRAL WISCONSIN...

* UNTIL 730 PM CDT

* AT 655 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO NEAR DELLWOOD...OR 8 MILES WEST OF FRIENDSHIP...MOVING EAST
  AT 60 MPH. THIS WARNING EXTENDS THE PREVIOUS TORNADO WARNING FOR
  ADAMS AND JUNEAU COUNTIES.

* THE TORNADO WILL BE NEAR...
  FRIENDSHIP AND ADAMS AROUND 700 PM...
  ROCHE A CRI STATE PARK AND HIGHWAYS 13 AND 21 AROUND 705 PM...
  THE SHIP ROCK WAYSIDE AND THE COLBURN WILDLIFE AREA AROUND 710
  PM...
  COUNTY ROADS C AND G AND HIGHWAY 21 AND COUNTY G AROUND 715 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 1100 PM SUNDAY EVENING FOR
NORTHEAST IOWA AND SOUTHEAST MINNESOTA AND WESTERN WISCONSIN.

&&

LAT...LON 4385 8999 4413 9015 4426 8973 4425 8960
      4424 8959 4418 8959 4393 8959
TIME...MOT...LOC 2357Z 248DEG 53KT 4397 8994

$$

DTJ

3 follow-up statements

569 
WWUS53 KARX 110005
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
705 PM CDT SUN APR 10 2011

WIC001-057-110030-
/O.CON.KARX.TO.W.0008.000000T0000Z-110411T0030Z/
ADAMS WI-JUNEAU WI-
705 PM CDT SUN APR 10 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL JUNEAU AND
NORTHERN ADAMS COUNTIES UNTIL 730 PM CDT...

AT 704 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO LOCATED NEAR ROCHE A CRI STATE PARK...OR NEAR FRIENDSHIP...
MOVING EAST AT 60 MPH. IN ADDITION TO A TORNADO...THIS STORM CAN
PRODUCE QUARTER SIZE HAIL AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.

* THE TORNADO WILL BE NEAR...
  COLBURN AROUND 710 PM...
  HIGHWAY 21 AND COUNTY G AND THE COLBURN WILDLIFE AREA AROUND 715
  PM...
  COUNTY ROADS D AND G AROUND 720 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 1100 PM SUNDAY EVENING FOR
SOUTHWEST WISCONSIN.

&&

LAT...LON 4385 8999 4413 9015 4426 8973 4425 8960
      4424 8959 4418 8959 4393 8959
TIME...MOT...LOC 0006Z 248DEG 53KT 4401 8976

$$

DTJ

193 
WWUS53 KARX 110015
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
715 PM CDT SUN APR 10 2011

WIC001-057-110030-
/O.CON.KARX.TO.W.0008.000000T0000Z-110411T0030Z/
ADAMS WI-JUNEAU WI-
715 PM CDT SUN APR 10 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL JUNEAU AND
NORTHERN ADAMS COUNTIES UNTIL 730 PM CDT...

AT 713 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO LOCATED NEAR HIGHWAY 21 AND COUNTY G...OR 10 MILES NORTHEAST
OF FRIENDSHIP...MOVING NORTHEAST AT 55 MPH. IN ADDITION TO A
TORNADO...THIS STORM CAN PRODUCE QUARTER SIZE HAIL AND DESTRUCTIVE
WINDS IN EXCESS OF 70 MPH.

* THE TORNADO WILL BE NEAR...
  COUNTY ROADS D AND G AROUND 720 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 1100 PM SUNDAY EVENING FOR
SOUTHWEST WISCONSIN.

&&

LAT...LON 4385 8999 4413 9015 4426 8973 4425 8960
      4424 8959 4418 8959 4393 8959
TIME...MOT...LOC 0014Z 246DEG 48KT 4404 8962

$$

DTJ

324 
WWUS53 KARX 110024
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
724 PM CDT SUN APR 10 2011

WIC001-057-110034-
/O.EXP.KARX.TO.W.0008.000000T0000Z-110411T0030Z/
ADAMS WI-JUNEAU WI-
724 PM CDT SUN APR 10 2011

...THE TORNADO WARNING FOR CENTRAL JUNEAU AND NORTHERN ADAMS COUNTIES
WILL EXPIRE AT 730 PM CDT...

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

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

LAT...LON 4385 8999 4413 9015 4426 8973 4425 8960
      4424 8959 4418 8959 4393 8959
TIME...MOT...LOC 0024Z 246DEG 48KT 4409 8944

$$

DTJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 10:58 AM CDT	River Flood Warning	ARX	Buffalo, Trempealeau	57 hr
Apr 10, 3:46 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	29 min
Apr 10, 4:16 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	29 min
Apr 10, 4:24 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Jackson, Trempealeau	41 min
Apr 10, 4:32 PM CDT	Tornado Warning	ARX	La Crosse, Vernon	43 min
Apr 10, 5:03 PM CDT	Severe Thunderstorm Warning	ARX	Vernon	27 min
Apr 10, 5:04 PM CDT	Severe Thunderstorm Warning	ARX	Juneau, Monroe	26 min
Apr 10, 5:09 PM CDT	Tornado Warning	ARX	Clark, Taylor	66 min
Apr 10, 5:13 PM CDT	Tornado Warning	ARX	Monroe	47 min
Apr 10, 5:39 PM CDT	Severe Thunderstorm Warning	ARX	Adams, Jackson, Juneau, Monroe	66 min
Apr 10, 5:56 PM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau, Monroe	64 min
Apr 10, 6:12 PM CDT	Tornado Warning	ARX	Taylor	33 min
Apr 10, 6:16 PM CDT	Tornado Warning	ARX	Adams, Juneau	44 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.