Alert archive / Wisconsin / Special Weather Statements in 2016

Special Weather Statement, NWS La Crosse, WI

July 21, 2016La Crosse County, Monroe County, Wisconsin

NWS La Crosse, WI issued this special weather statement at Jul 21, 2016, 7:37 AM CDT for La Crosse County, Monroe County, Wisconsin. It was in force for 38 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: Jul 21, 2016, 7:37 AM CDT (12:37 UTC)
Expired: Jul 21, 2016, 8:15 AM CDT
In force: 38 min
Issued by: NWS La Crosse, WI

Counties La Crosse County, WI, Monroe County, WI

The radar

The La Crosse radar (KARX), 48 km from the middle of the area, began a volume at 12:39 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 nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 0.6 hours before the alert went out and 211 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: 1904 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 686 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

515 
WWUS83 KARX 211237
SPSARX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
737 AM CDT THU JUL 21 2016

MNZ088-WIZ034-041>044-211315-
WINONA-JUNEAU-ADAMS-MONROE-LA CROSSE-JACKSON-
737 AM CDT THU JUL 21 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN WINONA...
NORTHERN MONROE...SOUTHEASTERN JACKSON...NORTHERN LA CROSSE...
NORTHWESTERN JUNEAU AND NORTHERN ADAMS COUNTIES...

AT 736 AM CDT...RADAR INDICATED STRONG THUNDERSTORMS ACROSS PORTIONS
OF SOUTHEAST MINNESOTA AND SOUTHWEST INTO CENTRAL WISCONSIN. 

MOVEMENT WAS EAST AT 50 MPH.

WINDS IN EXCESS OF 30 MPH ARE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
LA CROSSE...SPARTA...TOMAH...ONALASKA...HOLMEN...WEST SALEM...
BANGOR...DAKOTA...MILLSTON...BRICE PRAIRIE...FORT MC COY...
CATARACT...NEW ROME...FRENCH ISLAND...LEON...BURNS...ROCKLAND...
MELROSE...DRESBACH AND WARRENS.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
STATIONS AND AVAILABLE TELEVISION STATIONS FOR ADDITIONAL INFORMATION
AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4386 9074 4389 9160 4399 9137 4399 9132
      4400 9133 4441 9032 4425 9032 4425 8960
      4422 8960
TIME...MOT...LOC 1236Z 292DEG 41KT 4428 9035 4390 9141 

$$

WETENKAMP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 5:08 AM CDT	Special Weather Statement	ARX	Taylor	22 min
Jul 21, 5:31 AM CDT	Severe Thunderstorm Warning	ARX	Clark, Taylor	74 min
Jul 21, 6:37 AM CDT	Special Weather Statement	ARX	Clark, Trempealeau	23 min
Jul 21, 7:08 AM CDT	Special Weather Statement	ARX	Jackson	37 min
Jul 21, 8:23 AM CDT	Special Weather Statement	ARX	Adams, Juneau	37 min
Jul 21, 8:51 AM CDT	Severe Thunderstorm Warning	ARX	Adams	24 min
Jul 21, 11:50 AM CDT	Heat Advisory	ARX	Adams, Clark, Jackson, Juneau, Monroe, Taylor	31 hr
Jul 21, 1:34 PM CDT	Special Weather Statement	ARX	Clark	26 min
Jul 21, 1:59 PM CDT	Special Weather Statement	ARX	Clark	31 min
Jul 21, 2:15 PM CDT	Special Weather Statement	ARX	Buffalo	30 min
Jul 21, 2:36 PM CDT	Special Weather Statement	ARX	Buffalo	24 min
Jul 21, 2:51 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Trempealeau	20 min
Jul 21, 3:08 PM CDT	Special Weather Statement	ARX	Adams, Clark, Jackson, Juneau, La Crosse, Monroe and 1 more	82 min
Jul 21, 3:38 PM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau	37 min
Jul 21, 4:14 PM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau, Monroe	46 min
Jul 21, 5:07 PM CDT	Special Weather Statement	ARX	Adams, Juneau	23 min
Jul 21, 5:41 PM CDT	Special Weather Statement	ARX	La Crosse, Monroe	34 min
Jul 21, 5:57 PM CDT	Special Weather Statement	ARX	La Crosse, Vernon	18 min
Jul 21, 6:21 PM CDT	Special Weather Statement	ARX	Vernon	24 min
Jul 21, 6:34 PM CDT	Special Weather Statement	ARX	Richland	56 min

Nearby

Special Weather Statements in Wisconsin, 2016 Every special weather statement in 2016

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.