Alert archive / Wisconsin / Tornado Warnings in 2011
Tornado Warning 26, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Aug 23, 2011, 5:18 PM CDT for Clark County, Wisconsin. It was in force for 16 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
- Aug 23, 2011, 5:18 PM CDT (22:18 UTC)
- Expired
- Aug 23, 2011, 5:34 PM CDT
- In force
- 16 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
County Clark County, WI
The radar
The La Crosse radar (KARX), 112 km from the middle of the area, began a volume at 22:21 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 |
|---|---|---|---|
| Aug 23, 5:20 PM CDT | TSTM WND DMG | 1 S Chili, WI | |
| Aug 23, 5:30 PM CDT | TORNADO | Chili, WI | HOUSE OFF FOUNDATION...POWER LINES DOWN...ROOFS OFF HOUSES...AND BARNS DESTROYED |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.3 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.
- Mixed-layer CAPE
- 45 J/kg
- Mixed-layer CIN
- -226 J/kg
- Mixed-layer LCL
- 1187 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
250
WFUS53 KARX 232218
TORARX
WIC019-232245-
/O.NEW.KARX.TO.W.0026.110823T2218Z-110823T2245Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
518 PM CDT TUE AUG 23 2011
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* TORNADO WARNING FOR...
EAST CENTRAL CLARK COUNTY IN CENTRAL WISCONSIN...
* UNTIL 545 PM CDT
* AT 516 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO NEAR VEEFKIND...OR 13 MILES NORTHEAST OF NEILLSVILLE...
MOVING SOUTHEAST AT 25 MPH. THIS TORNADO WARNING UPGRADES THE
PREVIOUS SEVERE THUNDERSTORM WARNING FOR CLARK COUNTY.
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 1000 PM TUESDAY EVENING FOR
WEST CENTRAL WISCONSIN.
&&
LAT...LON 4463 9049 4473 9039 4471 9031 4460 9031
4455 9031
TIME...MOT...LOC 2218Z 295DEG 22KT 4467 9037
$$
BOYNE3 follow-up statements
469
WWUS53 KARX 232224
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
524 PM CDT TUE AUG 23 2011
WIC019-232245-
/O.CON.KARX.TO.W.0026.000000T0000Z-110823T2245Z/
CLARK WI-
524 PM CDT TUE AUG 23 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL CLARK COUNTY
UNTIL 545 PM CDT...
AT 515 PM...PUBLIC REPORTED A TORNADO ON THE GROUND NEAR
THE INTERSECTION OF HIGHWAY H AND SANDHILL ROAD NORTHWEST OF CHILI.
AT 521 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
TORNADO WAS LOCATED NEAR CHILI...OR 14 MILES NORTHEAST OF
NEILLSVILLE...MOVING EAST AT 20 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS! CARS AND MOBILE HOMES SHOULD BE ABANDONED
FOR A STURDY BUILDING. AS A LAST RESORT...LAY FLAT IN A DITCH AND
COVER YOUR HEAD.
&&
LAT...LON 4463 9049 4473 9039 4471 9031 4460 9031
4455 9031
TIME...MOT...LOC 2223Z 292DEG 16KT 4466 9034
$$
BOYNE659
WWUS53 KARX 232227
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
527 PM CDT TUE AUG 23 2011
WIC019-232245-
/O.CON.KARX.TO.W.0026.000000T0000Z-110823T2245Z/
CLARK WI-
527 PM CDT TUE AUG 23 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL CLARK COUNTY
UNTIL 545 PM CDT...
AT 525 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO LOCATED NEAR CHILI...OR 15 MILES NORTHEAST OF NEILLSVILLE...
MOVING EAST AT 20 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 4463 9049 4473 9039 4471 9031 4460 9031
4455 9031
TIME...MOT...LOC 2228Z 292DEG 16KT 4465 9031
$$
BOYNE229
WWUS53 KARX 232234
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
534 PM CDT TUE AUG 23 2011
WIC019-232243-
/O.CAN.KARX.TO.W.0026.000000T0000Z-110823T2245Z/
CLARK WI-
534 PM CDT TUE AUG 23 2011
...THE TORNADO WARNING FOR EAST CENTRAL CLARK COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED SOUTHEAST INTO WOOD
COUNTY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT.
LAT...LON 4463 9049 4473 9039 4471 9031 4460 9031
4455 9031
TIME...MOT...LOC 2233Z 292DEG 16KT 4464 9028
$$
BOYNEThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 3:57 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Taylor | 63 min |
| Aug 23, 4:43 PM CDT | Severe Thunderstorm Warning | ARX | Clark | 32 min |
| Aug 23, 4:54 PM CDT | Severe Thunderstorm Warning | ARX | Clark | 66 min |
| Aug 23, 5:47 PM CDT | Tornado Warning | ARX | Clark, Jackson | 35 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.