Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 61, NWS La Crosse, WI

July 28, 2021Clark County, Jackson County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Jul 28, 2021, 9:48 PM CDT for Clark County, Jackson County, Wisconsin. It was in force for 57 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: Jul 28, 2021, 9:48 PM CDT (02:48 UTC)
Expired: Jul 28, 2021, 10:45 PM CDT
In force: 57 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Clark County, WI, Jackson County, WI

The radar

The La Crosse radar (KARX), 70 km from the middle of the area, began a volume at 02:49 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
Jul 28, 10:00 PM CDT	TSTM WND DMG	Neillsville, WI	POWER LINES AND POLES DOWN IN AREA. ROUGHLY 390 RESIDENTS WITHOUT POWER. TIME ESTIMATED.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 28, 7:17 PM CDT	Severe Thunderstorm Watch PDS	SPC	7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 2.8 hours before the alert went out and 205 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: 593 J/kg
Mixed-layer CIN: -264 J/kg
Mixed-layer LCL: 1088 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

621 
WUUS53 KARX 290248
SVRARX
WIC019-053-290345-
/O.NEW.KARX.SV.W.0061.210729T0248Z-210729T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
948 PM CDT Wed Jul 28 2021

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for...
  Southern Clark County in central Wisconsin...
  Central Jackson County in west central Wisconsin...

* Until 1045 PM CDT.

* At 947 PM CDT, a severe thunderstorm was located 10 miles west of
  Greenwood, or 14 miles northwest of Neillsville, moving southeast
  at 60 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* This severe thunderstorm will be near...
  Neillsville around 1000 PM CDT.
  Shortville and Hatfield around 1010 PM CDT.

Other locations impacted by this severe thunderstorm include Ballard
Road And Pray Avenue, City Point, Wildcat Mound, Shamrock, The Black
River Correctional Center, Pigeon Creek Campground and Highway 10 And
Bald Peak Road.

This includes Interstate 94 between mile markers 111 and 132.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4416 9092 4460 9093 4460 9031 4416 9031
TIME...MOT...LOC 0247Z 330DEG 52KT 4471 9080 

HAIL...1.00IN
WIND...70MPH
 
$$

Rieck

4 follow-up statements

803 
WWUS53 KARX 290259
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
959 PM CDT Wed Jul 28 2021

WIC019-053-290345-
/O.CON.KARX.SV.W.0061.000000T0000Z-210729T0345Z/
Clark WI-Jackson WI-
959 PM CDT Wed Jul 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR SOUTHERN CLARK AND CENTRAL JACKSON COUNTIES...

At 958 PM CDT, a severe thunderstorm was located near Neillsville,
moving southeast at 60 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

This severe storm will be near...
  Shortville and Hatfield around 1005 PM CDT.

Other locations impacted by this severe thunderstorm include Ballard
Road And Pray Avenue, City Point, Wildcat Mound, Shamrock, The Black
River Correctional Center, Pigeon Creek Campground and Highway 10 And
Bald Peak Road.

This includes Interstate 94 between mile markers 111 and 132.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4416 9092 4460 9093 4460 9031 4416 9031
TIME...MOT...LOC 0258Z 330DEG 52KT 4456 9068 

HAIL...1.00IN
WIND...70MPH
 
$$

Rieck

493 
WWUS53 KARX 290315
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
1015 PM CDT Wed Jul 28 2021

WIC019-053-290345-
/O.CON.KARX.SV.W.0061.000000T0000Z-210729T0345Z/
Clark WI-Jackson WI-
1015 PM CDT Wed Jul 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR SOUTHERN CLARK AND CENTRAL JACKSON COUNTIES...

At 1015 PM CDT, a severe thunderstorm was located 7 miles southeast
of Hatfield, or 12 miles east of Black River Falls, moving south at
60 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

This severe storm will be near...
  Millston around 1025 PM CDT.

Other locations impacted by this severe thunderstorm include Ballard
Road And Pray Avenue, City Point, Wildcat Mound, Shamrock, The Black
River Correctional Center, Pigeon Creek Campground and Highway 10 And
Bald Peak Road.

This includes Interstate 94 between mile markers 111 and 132.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4416 9092 4460 9093 4460 9031 4416 9031
TIME...MOT...LOC 0315Z 341DEG 51KT 4436 9061 

HAIL...1.00IN
WIND...70MPH
 
$$

Rieck

479 
WWUS53 KARX 290336
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
1036 PM CDT Wed Jul 28 2021

WIC019-053-290345-
/O.CON.KARX.SV.W.0061.000000T0000Z-210729T0345Z/
Clark WI-Jackson WI-
1036 PM CDT Wed Jul 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR SOUTHERN CLARK AND CENTRAL JACKSON COUNTIES...

At 1036 PM CDT, a severe thunderstorm was located 10 miles east of
Millston, or 14 miles north of Tomah, moving southeast at 50 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

This severe thunderstorm will remain over mainly rural areas of
southern Clark and central Jackson Counties, including the following
locations... Ballard Road And Pray Avenue, City Point, Wildcat Mound,
Shamrock, The Black River Correctional Center, Pigeon Creek
Campground and Highway 10 And Bald Peak Road.

This includes Interstate 94 between mile markers 111 and 132.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4416 9092 4460 9093 4460 9031 4416 9031
TIME...MOT...LOC 0336Z 330DEG 42KT 4419 9044 

HAIL...0.75IN
WIND...70MPH
 
$$

Rieck

662 
WWUS53 KARX 290347
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
1047 PM CDT Wed Jul 28 2021

WIC019-053-290356-
/O.EXP.KARX.SV.W.0061.000000T0000Z-210729T0345Z/
Clark WI-Jackson WI-
1047 PM CDT Wed Jul 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CLARK AND CENTRAL
JACKSON COUNTIES HAS EXPIRED...
                
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 allowed to expire.  However gusty
winds and very heavy rain are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
central and west central Wisconsin.

LAT...LON 4416 9092 4460 9093 4460 9031 4416 9031
TIME...MOT...LOC 0346Z 330DEG 52KT 4408 9036 

$$

Rieck

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 7:09 PM CDT	Special Weather Statement	ARX	Taylor	51 min
Jul 28, 8:19 PM CDT	Severe Thunderstorm Warning	ARX	Taylor	56 min
Jul 28, 9:32 PM CDT	Severe Thunderstorm Warning	ARX	Clark	43 min
Jul 28, 10:44 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Trempealeau	46 min
Jul 28, 10:45 PM CDT	Special Weather Statement	ARX	Adams, Jackson, Juneau	60 min
Jul 28, 11:19 PM CDT	Severe Thunderstorm Warning	ARX	Jackson, Monroe, Trempealeau	26 min
Jul 28, 11:37 PM CDT	Special Weather Statement	ARX	La Crosse, Monroe	53 min
Jul 28, 11:54 PM CDT	Areal Flood Advisory	ARX	La Crosse	79 min
Jul 29, 12:26 AM CDT	Special Weather Statement	ARX	Crawford, Grant	94 min
Jul 29, 1:39 AM CDT	Special Weather Statement	ARX	Grant	66 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.