Alert archive / Wisconsin / Special Weather Statements in 2021

Special Weather Statement, NWS La Crosse, WI

June 24, 2021La Crosse County, Monroe County, Wisconsin

NWS La Crosse, WI issued this special weather statement at Jun 24, 2021, 7:39 PM CDT for La Crosse County, Monroe County, Wisconsin. It was in force for 66 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: Jun 24, 2021, 7:39 PM CDT (00:39 UTC)
Expired: Jun 24, 2021, 8:45 PM CDT
In force: 66 min
Issued by: NWS La Crosse, WI

Counties La Crosse County, WI, Monroe County, WI

The radar

The La Crosse radar (KARX), 18 km from the middle of the area, began a volume at 00:38 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
Jun 24, 8:55 PM CDT	TSTM WND DMG	2 N Onalaska, WI	REPORT FROM MPING: TREES UPROOTED OR SNAPPED; ROOF BLOWN OFF.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.7 hours before the alert went out and 220 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: 1817 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 18 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

603 
WWUS83 KARX 250039
SPSARX

Special Weather Statement
National Weather Service La Crosse WI
739 PM CDT Thu Jun 24 2021

WIZ041-042-250145-
La Crosse-Monroe-
739 PM CDT Thu Jun 24 2021

...SCATTERED STORMS MOVING THROUGH THE I-90 CORRIDOR...

At 732 PM CDT, radar indicated scattered strong thunderstorms along 
a line from about Trempealeau to Warrens in western Wisconsin. The 
storms were slowly drifting southward. 

The strongest storms will bring wind gusts to 40 mph and half inch 
hail.  Lightning and brief heavy rain will accompany most storms. 

Locations that may be impacted through 930 pm include... La Crosse, 
Sparta, Tomah, West Salem, Bangor, Cashton, Fort Mc Coy, Cataract, 
Norwalk and Rockland.

This includes the following highways...
 Interstate 94 between mile markers 133 and 147.
 Interstate 90/94 between mile markers 46 and 52.
 Interstate 90 in Wisconsin between mile markers 1 and 45.

Lightning can strike 10 miles away from a thunderstorm. Seek a safe 
shelter inside a building or vehicle.

LAT...LON 4373 9125 4378 9124 4384 9128 4394 9136
      4398 9142 4399 9132 4402 9134 4406 9131
      4407 9127 4405 9122 4409 9119 4407 9115
      4407 9097 4413 9098 4416 9091 4416 9031
      4373 9031
TIME...MOT...LOC 0032Z 351DEG 16KT 4407 9000 4405 9175 

$$

Baumgardt

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 8:25 PM CDT	Areal Flood Advisory	ARX	La Crosse	110 min
Jun 25, 4:48 PM CDT	Areal Flood Advisory	ARX	Chickasaw, Floyd	2 hr
Jun 25, 6:52 PM CDT	Areal Flood Advisory	ARX	Chickasaw, Winneshiek	2 hr

Nearby

Special Weather Statements in Wisconsin, 2021 Every special weather statement in 2021

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.