Alert archive / Wisconsin / Special Weather Statements in 2014

Special Weather Statement, NWS La Crosse, WI

May 7, 2014Clark County, Wisconsin

NWS La Crosse, WI issued this special weather statement at May 7, 2014, 5:21 AM CDT for Clark County, Wisconsin. It was in force for 24 min. 1 report 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 7, 2014, 5:21 AM CDT (10:21 UTC)
Expired: May 7, 2014, 5:45 AM CDT
In force: 24 min
Issued by: NWS La Crosse, WI

County Clark County, WI

The radar

The La Crosse radar (KARX), 92 km from the middle of the area, began a volume at 10:22 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 7, 5:54 AM CDT	HAIL 1.75	6 Wnw Neillsville, WI	SIZE ESTIMATED FROM PHOTO. TIME ESTIMATED FROM RADAR.

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, 10.4 hours before the alert went out and 210 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: 1797 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 187 m²/s²
0-3 km storm-relative helicity: 353 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.

109 
WWUS83 KARX 071021
SPSARX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
521 AM CDT WED MAY 7 2014
 
WIZ029-071045-
CLARK-
521 AM CDT WED MAY 7 2014

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN CLARK COUNTY... 

AT 520 AM CDT...A STRONG THUNDERSTORM WAS NEAR HUMBIRD...OR 14 MILES
WEST OF NEILLSVILLE...MOVING EAST AT 20 MPH.

PENNY SIZE HAIL IS POSSIBLE WITH THIS STORM.

THIS STORM WILL BE NEAR...
  NEILLSVILLE AROUND 545 AM CDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE CHRISTIE...HOG
CORNERS...TIOGA AND SIDNEY.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4451 9080 4451 9092 4466 9092 4474 9055
      4455 9045
TIME...MOT...LOC 1020Z 256DEG 17KT 4459 9089 

$$

JW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 9:17 PM CDT	Special Weather Statement	ARX	Adams, Juneau, Monroe	58 min
May 7, 1:59 AM CDT	Special Weather Statement	ARX	Adams, Juneau	46 min
May 7, 4:48 AM CDT	Special Weather Statement	ARX	Jackson	27 min
May 7, 5:27 AM CDT	Severe Thunderstorm Warning	ARX	Clark	63 min
May 7, 6:00 AM CDT	Severe Thunderstorm Warning	ARX	Clark	45 min
May 7, 8:15 AM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Trempealeau	45 min
May 7, 8:28 AM CDT	Special Weather Statement	ARX	Trempealeau	32 min
May 7, 9:04 AM CDT	Special Weather Statement	ARX	Jackson	26 min
May 7, 9:31 AM CDT	Special Weather Statement	ARX	Adams, Richland, Vernon	29 min
May 7, 9:42 AM CDT	Severe Thunderstorm Warning	ARX	Richland	33 min
May 7, 10:12 AM CDT	Special Weather Statement	ARX	Adams	63 min
May 7, 5:42 AM CDT	Special Weather Statement	ARX	Dodge	78 min
May 7, 6:25 AM CDT	Special Weather Statement	ARX	Dodge	20 min
May 7, 6:43 AM CDT	Severe Thunderstorm Warning	ARX	Dodge, Mower, Olmsted	47 min
May 7, 7:39 AM CDT	Special Weather Statement	ARX	Olmsted	36 min
May 7, 7:51 AM CDT	Special Weather Statement	ARX	Winona	24 min

Nearby

Special Weather Statements in Wisconsin, 2014 Every special weather statement in 2014

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.