Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 48, NWS La Crosse, WI

May 26, 2012Adams County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at May 26, 2012, 9:23 PM CDT for Adams County, Wisconsin. It was in force for 23 min. 3 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: May 26, 2012, 9:23 PM CDT (02:23 UTC)
Expired: May 26, 2012, 9:46 PM CDT
In force: 23 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Adams County, WI

The radar

The La Crosse radar (KARX), 113 km from the middle of the area, began a volume at 02:25 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
May 26, 9:30 PM CDT	HAIL 0.88	New Rome, WI
May 26, 9:30 PM CDT	HAIL 1	Big Flats, WI
May 26, 9:30 PM CDT	HAIL 1.75	Big Flats, WI	RELAYED BY WSAW.

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 00:00Z, 2.4 hours before the alert went out and 144 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 783 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 279 m²/s²
0-3 km storm-relative helicity: 360 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.

602 
WUUS53 KARX 270223
SVRARX
WIC001-270300-
/O.NEW.KARX.SV.W.0048.120527T0223Z-120527T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
923 PM CDT SAT MAY 26 2012

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN ADAMS COUNTY IN CENTRAL WISCONSIN...

* UNTIL 1000 PM CDT

* AT 921 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM LOCATED NEAR BIG FLATS...OR 12 MILES NORTH OF
  FRIENDSHIP...MOVING EAST AT 40 MPH. THIS STORM CAN PRODUCE QUARTER
  SIZE HAIL.  

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  COLBURN AND THE LEOLA MARSH WILDLIFE AREA AROUND 930 PM...
  COUNTY ROADS G AND O AND COUNTY ROADS O AND W AROUND 935 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4408 8995 4416 8995 4417 8995 4415 8993
      4418 8992 4418 8990 4419 8993 4420 8991
      4421 8993 4423 8990 4425 8989 4425 8960
      4418 8959 4402 8959
TIME...MOT...LOC 0223Z 268DEG 35KT 4414 8979
WIND...HAIL <50MPH 1.00IN

$$
ZT

2 follow-up statements

672 
WWUS53 KARX 270238
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
938 PM CDT SAT MAY 26 2012

WIC001-270300-
/O.CON.KARX.SV.W.0048.000000T0000Z-120527T0300Z/
ADAMS WI-
938 PM CDT SAT MAY 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
ADAMS COUNTY UNTIL 1000 PM CDT...

AT 930 PM...PUBLIC REPORTED QUARTER SIZED HAIL IN BIG FLATS WITH A 
SEVERE THUNDERSTORM.

AT 935 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
SEVERE THUNDERSTORM WAS LOCATED NEAR COLBURN...OR 13 MILES NORTHEAST
OF FRIENDSHIP...MOVING EAST AT 30 MPH. THIS STORM CAN PRODUCE QUARTER
SIZE HAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4406 8980 4415 8983 4421 8982 4425 8978
      4425 8960 4418 8959 4402 8959
TIME...MOT...LOC 0238Z 269DEG 26KT 4414 8966
WIND...HAIL <50MPH 1.00IN

$$

ZT

733 
WWUS53 KARX 270246
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
946 PM CDT SAT MAY 26 2012

WIC001-270256-
/O.CAN.KARX.SV.W.0048.000000T0000Z-120527T0300Z/
ADAMS WI-
946 PM CDT SAT MAY 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ADAMS COUNTY IS
CANCELLED...

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

LAT...LON 4406 8980 4415 8983 4421 8982 4425 8978
      4425 8960 4418 8959 4402 8959
TIME...MOT...LOC 0246Z 268DEG 35KT 4415 8948

$$

ZT

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 8:24 PM CDT	Severe Thunderstorm Warning	ARX	Jackson	31 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.