Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 29, NWS La Crosse, WI

June 17, 2021Clark County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Jun 17, 2021, 7:24 PM CDT for Clark County, Wisconsin. It was in force for 40 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: Jun 17, 2021, 7:24 PM CDT (00:24 UTC)
Expired: Jun 17, 2021, 8:04 PM CDT
In force: 40 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Clark County, WI

The radar

The La Crosse radar (KARX), 115 km from the middle of the area, began a volume at 00:27 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
Jun 17, 3:50 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.4 hours before the alert went out and 197 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: 52 J/kg
Mixed-layer CIN: -285 J/kg
Mixed-layer LCL: 1895 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 310 m²/s²
0-3 km storm-relative helicity: 397 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

980 
WUUS53 KARX 180024
SVRARX
WIC019-180115-
/O.NEW.KARX.SV.W.0029.210618T0024Z-210618T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
724 PM CDT Thu Jun 17 2021

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for...
  Clark County in central Wisconsin...

* Until 815 PM CDT.

* At 724 PM CDT, a severe thunderstorm was located near Greenwood, or
  10 miles north of Neillsville, moving east at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Loyal around 740 PM CDT.

Other locations impacted by this severe thunderstorm include Highway
73 And 98, Atwood, Tioga, Christie, Highway 10 And Bald Peak Road,
Lynn and Longwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4487 9032 4448 9032 4459 9092 4494 9092
TIME...MOT...LOC 0024Z 282DEG 28KT 4471 9065 

HAIL...1.00IN
WIND...60MPH
 
$$

Skow

2 follow-up statements

836 
WWUS53 KARX 180044
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
744 PM CDT Thu Jun 17 2021

WIC019-180115-
/O.CON.KARX.SV.W.0029.000000T0000Z-210618T0115Z/
Clark WI-
744 PM CDT Thu Jun 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR EASTERN CLARK COUNTY...

At 744 PM CDT, a severe thunderstorm was located near Loyal, or 11
miles northeast of Neillsville, moving east at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of
eastern Clark County, including the following locations... County K
And Capital Road, Chili, Highway 73 And 98, Chili Corners, Atwood,
Christie and Veefkind.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4487 9032 4448 9032 4454 9063 4491 9071
TIME...MOT...LOC 0044Z 282DEG 28KT 4468 9043 

HAIL...<.75IN
WIND...60MPH
 
$$

Skow

527 
WWUS53 KARX 180104
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
804 PM CDT Thu Jun 17 2021

WIC019-180113-
/O.CAN.KARX.SV.W.0029.000000T0000Z-210618T0115Z/
Clark WI-
804 PM CDT Thu Jun 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CLARK COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However small hail and
gusty winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
central Wisconsin.

Remember, a Severe Thunderstorm Warning still remains in effect for
southern Clark County until 8:45pm.

LAT...LON 4487 9032 4448 9032 4454 9063 4491 9071
TIME...MOT...LOC 0101Z 282DEG 28KT 4465 9022 

$$

Skow

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 7:39 PM CDT	Special Weather Statement	ARX	Jackson	36 min
Jun 17, 7:54 PM CDT	Severe Thunderstorm Warning	ARX	Clark, Jackson	20 min
Jun 17, 8:27 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	48 min
Jun 17, 8:52 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Jackson, Trempealeau	38 min
Jun 17, 8:56 PM CDT	Severe Thunderstorm Warning	ARX	Trempealeau	64 min
Jun 17, 9:09 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	51 min
Jun 17, 9:23 PM CDT	Severe Thunderstorm Warning	ARX	Jackson, Trempealeau	37 min
Jun 17, 9:34 PM CDT	Special Weather Statement	ARX	Clark, Jackson	41 min
Jun 17, 9:58 PM CDT	Severe Thunderstorm Warning	ARX	La Crosse, Trempealeau	47 min
Jun 17, 10:22 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Trempealeau	53 min
Jun 17, 10:46 PM CDT	Severe Thunderstorm Warning	ARX	La Crosse, Monroe, Trempealeau	44 min
Jun 17, 11:14 PM CDT	Severe Thunderstorm Warning	ARX	Vernon	25 min
Jun 17, 11:15 PM CDT	Areal Flood Advisory	ARX	Buffalo, La Crosse, Monroe, Trempealeau	97 min
Jun 17, 11:28 PM CDT	Special Weather Statement	ARX	Juneau, Monroe	47 min
Jun 17, 11:56 PM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau	34 min
Jun 18, 12:26 AM CDT	Special Weather Statement	ARX	Vernon	34 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2021 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.