Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 40, NWS La Crosse, WI

May 24, 2012Taylor County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at May 24, 2012, 5:16 PM CDT for Taylor County, Wisconsin. It was in force for 29 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 24, 2012, 5:16 PM CDT (22:16 UTC)
Expired: May 24, 2012, 5:45 PM CDT
In force: 29 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

County Taylor County, WI

The radar

The La Crosse radar (KARX), 164 km from the middle of the area, began a volume at 22:19 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 24, 2:22 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.3 hours before the alert went out and 227 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: 13 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 668 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 6 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

721 
WUUS53 KARX 242216
SVRARX
WIC119-242245-
/O.NEW.KARX.SV.W.0040.120524T2216Z-120524T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
516 PM CDT THU MAY 24 2012

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN TAYLOR COUNTY IN NORTH CENTRAL WISCONSIN...

* UNTIL 545 PM CDT

* AT 514 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ROUGHLY ALONG A LINE EXTENDING FROM JUMP RIVER
  TO 14 MILES NORTH OF THORP...MOVING NORTHEAST AT 80 MPH. THESE
  STORMS CAN PRODUCE NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF
  60 MPH.  

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  RURAL NORTH CENTRAL TAYLOR COUNTY AT 530 PM...
  RURAL EXTREME NORTHEASTERN TAYLOR COUNTY AT 540 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR
SMALL HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

TORRENTIAL RAINFALL FROM THESE STORMS MAY ALSO CAUSE THE PONDING OF
WATER ON ROADWAYS AND LOCALIZED FLOODING.

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 4512 9086 4531 9094 4539 9092 4538 9026
TIME...MOT...LOC 2216Z 231DEG 70KT 4545 9082 4532 9068
          4518 9072
WIND...HAIL 60MPH 0.88IN

$$

DTJ

2 follow-up statements

091 
WWUS53 KARX 242229
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
529 PM CDT THU MAY 24 2012

WIC119-242245-
/O.CON.KARX.SV.W.0040.000000T0000Z-120524T2245Z/
TAYLOR WI-
529 PM CDT THU MAY 24 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
TAYLOR COUNTY UNTIL 545 PM CDT...

AT 515 PM...TRAINED SPOTTER ESTIMATED ONE INCH SIZE HAIL AND 60 MPH 
WIND GUST.

AT 524 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WERE ROUGHLY ALONG A LINE EXTENDING FROM 10 MILES
NORTHEAST OF JUMP RIVER TO 11 MILES EAST OF JUMP RIVER TO 13 MILES
SOUTHEAST OF JUMP RIVER...MOVING NORTHEAST AT 50 MPH. THESE STORMS
CAN PRODUCE NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  RURAL NORTH CENTRAL TAYLOR COUNTY AT 540 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND SMALL HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

TORRENTIAL RAINFALL FROM THESE STORMS MAY ALSO CAUSE THE PONDING OF
WATER ON ROADWAYS AND LOCALIZED FLOODING.

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 4512 9086 4531 9094 4539 9092 4538 9026
TIME...MOT...LOC 2228Z 235DEG 42KT 4551 9066 4538 9052
          4524 9057
WIND...HAIL 60MPH <.50IN

$$

DTJ

655 
WWUS53 KARX 242241
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
541 PM CDT THU MAY 24 2012

WIC119-242251-
/O.EXP.KARX.SV.W.0040.000000T0000Z-120524T2245Z/
TAYLOR WI-
541 PM CDT THU MAY 24 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN TAYLOR COUNTY
WILL EXPIRE AT 545 PM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.

REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR 
PORTIONS OF SOUTHERN TAYLOR COUNTY UNTIL 615 PM.

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

LAT...LON 4512 9086 4531 9094 4539 9092 4538 9026
TIME...MOT...LOC 2241Z 235DEG 42KT 4559 9048 4546 9034
          4532 9039

$$

DTJ

The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 3:11 AM CDT	Wind Advisory	ARX	Adams, Clark, Crawford, Grant, Jackson, Juneau and 6 more	16 hr
May 24, 4:27 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	33 min
May 24, 4:46 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Jackson, Trempealeau	29 min
May 24, 5:00 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo, La Crosse, Trempealeau	35 min
May 24, 5:26 PM CDT	Severe Thunderstorm Warning	ARX	Clark, Jackson	49 min
May 24, 5:36 PM CDT	Severe Thunderstorm Warning	ARX	Clark, Taylor	39 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2012 Every severe thunderstorm warning in 2012

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.