Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 21, NWS La Crosse, WI

May 25, 2021Clark County, Jackson County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at May 25, 2021, 5:11 PM CDT for Clark County, Jackson County, Wisconsin. It was in force for 64 min. 13 reports 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 25, 2021, 5:11 PM CDT (22:11 UTC)
Expired
May 25, 2021, 6:15 PM CDT
In force
64 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Clark County, WI, Jackson County, WI

The radar

The La Crosse radar (KARX), 76 km from the middle of the area, began a volume at 22:12 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

TimeReportWhereRemark
May 25, 5:28 PM CDTTSTM WND DMG5 Nne Merrillan, WIREPORTS OF TREES DOWN
May 25, 5:28 PM CDTTSTM WND DMG5 Nne Merrillan, WIREPORTS OF TREES DOWN.
May 25, 5:30 PM CDTTSTM WND DMGBlack River Falls, WIREPORTS OF TREES DOWN IN VARIOUS SPOTS AROUND THE COUNTY
May 25, 5:30 PM CDTTSTM WND DMGBlack River Falls, WIREPORTS OF TREES DOWN IN VARIOUS SPOTS AROUND THE COUNTY.
May 25, 5:35 PM CDTTSTM WND DMGNeillsville, WIISOLATED TREE DAMAGE REPORTED AROUND NEILLSVILLE AND TO THE SOUTH OF TOWN
May 25, 5:35 PM CDTTSTM WND DMGNeillsville, WIISOLATED TREE DAMAGE REPORTED AROUND NEILLSVILLE AND TO THE SOUTH OF TOWN.
May 25, 5:49 PM CDTHAIL 0.54 S Hatfield, WIREPORT FROM MPING: HALF-INCH (0.50 IN.).
May 25, 5:50 PM CDTTSTM WND DMGGranton, WI
May 25, 5:56 PM CDTHAIL 0.53 E Loyal, WI
May 25, 5:59 PM CDTTSTM WND DMG7 S Granton, WIREPORT FROM MPING: 1-INCH TREE LIMBS BROKEN; SHINGLES BLOWN OFF.
May 25, 6:05 PM CDTTSTM WND DMG4 S Granton, WI
May 25, 6:06 PM CDTTSTM WND DMG6 Sw Lindsey, WIREPORT FROM MPING: 1-INCH TREE LIMBS BROKEN; SHINGLES BLOWN OFF.
May 25, 6:08 PM CDTTSTM WND DMG6 S Lindsey, WIREPORT FROM MPING: 1-INCH TREE LIMBS BROKEN; SHINGLES BLOWN OFF.

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.

IssuedProductOfficeLasted
May 25, 2:53 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.2 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2021-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 96 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2021-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
96 J/kg
Mixed-layer CIN
-140 J/kg
Mixed-layer LCL
1118 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

068 
WUUS53 KARX 252211
SVRARX
WIC019-053-252315-
/O.NEW.KARX.SV.W.0021.210525T2211Z-210525T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
511 PM CDT Tue May 25 2021

The National Weather Service in La Crosse has issued a

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

* Until 615 PM CDT.

* At 510 PM CDT, severe thunderstorms were located along a line
  extending from near Fairchild to 9 miles south of Price to near
  Galesville, moving east at 45 mph.

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

  SOURCE...Law enforecment reported widespread wind damage across 
           Trempealeau County.

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

* Severe thunderstorms will be near...
  Fairchild around 515 PM CDT.
  Humbird around 525 PM CDT.
  Greenwood around 530 PM CDT.
  Hatfield around 535 PM CDT.
  Loyal around 540 PM CDT.
  Neillsville around 545 PM CDT.
  Shortville around 550 PM CDT.
  Millston around 600 PM CDT.

Other locations impacted by these severe thunderstorms include
Franklin, Highway 73 And 98, Shamrock, The Black River Correctional
Center, Tioga, Potters Flowage and Perry Creek Recreation Area.

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

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

LAT...LON 4416 9115 4448 9117 4460 9108 4460 9092
      4479 9092 4479 9032 4416 9031
TIME...MOT...LOC 2210Z 268DEG 38KT 4466 9091 4445 9110 4417 9137 

HAIL...0.75IN
WIND...60MPH
 
$$

Wetenkamp
4 follow-up statements
955 
WWUS53 KARX 252230
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
530 PM CDT Tue May 25 2021

WIC019-053-252315-
/O.CON.KARX.SV.W.0021.000000T0000Z-210525T2315Z/
Clark WI-Jackson WI-
530 PM CDT Tue May 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR SOUTHERN CLARK AND JACKSON COUNTIES...

At 528 PM CDT, severe thunderstorms were located along a line
extending from near Greenwood to near Humbird to 8 miles southeast of
Blair, moving east at 45 mph.

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

SOURCE...Radar indicated.

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

These severe storms will be near...
  Loyal and Greenwood around 535 PM CDT.
  Neillsville around 545 PM CDT.
  Black River Falls and Shortville around 550 PM CDT.
  Millston around 600 PM CDT.

Other locations impacted by these severe thunderstorms include
Franklin, Highway 73 And 98, Shamrock, The Black River Correctional
Center, Tioga, Potters Flowage and Perry Creek Recreation Area.

This includes Interstate 94 between mile markers 96 and 132.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for damaging winds. This storm has a history of 
producing damaging winds across portions of Trempealeau County. 
People outside should move to a shelter, inside a strong building 
and away from windows.

&&

LAT...LON 4416 9115 4448 9117 4449 9116 4456 9095
      4460 9092 4479 9092 4479 9032 4416 9031
TIME...MOT...LOC 2228Z 267DEG 38KT 4477 9055 4446 9085 4424 9108 

HAIL...0.75IN
WIND...60MPH
 
$$

Wetenkamp
379 
WWUS53 KARX 252253
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
553 PM CDT Tue May 25 2021

WIC019-053-252315-
/O.CON.KARX.SV.W.0021.000000T0000Z-210525T2315Z/
Clark WI-Jackson WI-
553 PM CDT Tue May 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR SOUTHEASTERN CLARK AND JACKSON COUNTIES...

At 551 PM CDT, severe thunderstorms were located along a line
extending from near Spencer to near Shortville to 6 miles north of
Millston, moving east at 45 mph.

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

SOURCE...Law enforcement reported tree damage in the Neillsville 
         area and across southern Clark County.

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

These severe thunderstorms will remain over mainly rural areas of
southeastern Clark and Jackson Counties, including the following
locations... Franklin, Ballard Road And Pray Avenue, Highway 73 And
98, City Point, Shamrock, The Black River Correctional Center and
Pigeon Creek Campground.

This includes Interstate 94 between mile markers 103 and 132.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4416 9115 4441 9116 4441 9108 4443 9086
      4458 9073 4479 9057 4479 9032 4416 9031
TIME...MOT...LOC 2251Z 264DEG 40KT 4482 9024 4452 9046 4430 9064 

HAIL...0.75IN
WIND...60MPH
 
$$

Wetenkamp
958 
WWUS53 KARX 252309
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
609 PM CDT Tue May 25 2021

WIC019-252318-
/O.CAN.KARX.SV.W.0021.000000T0000Z-210525T2315Z/
Clark WI-
609 PM CDT Tue May 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLARK COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area.

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

LAT...LON 4420 9114 4423 9115 4439 9116 4441 9110
      4441 9108 4443 9089 4423 9076
TIME...MOT...LOC 2308Z 253DEG 30KT 4431 9107 

$$

WIC053-252315-
/O.CON.KARX.SV.W.0021.000000T0000Z-210525T2315Z/
Jackson WI-
609 PM CDT Tue May 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR WEST CENTRAL JACKSON COUNTY...

At 608 PM CDT, a severe thunderstorm was located 7 miles east of
Blair, or 11 miles west of Black River Falls, moving east at 35 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.

Locations impacted include...
Black River Falls, Franklin, Taylor, Hixton, The Black River Falls
Airport, Disco, Castle Mound, Perry Creek Recreation Area and
Vaudreuil.

This includes Interstate 94 between mile markers 103 and 119.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4420 9114 4423 9115 4439 9116 4441 9110
      4441 9108 4443 9089 4423 9076
TIME...MOT...LOC 2308Z 253DEG 30KT 4431 9107 

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

Wetenkamp
118 
WWUS53 KARX 252315
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
615 PM CDT Tue May 25 2021

WIC053-252325-
/O.EXP.KARX.SV.W.0021.000000T0000Z-210525T2315Z/
Jackson WI-
615 PM CDT Tue May 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL JACKSON COUNTY
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 heavy rain are still possible with this thunderstorm.

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

LAT...LON 4420 9114 4423 9115 4439 9116 4441 9110
      4441 9108 4443 9089 4423 9076
TIME...MOT...LOC 2315Z 268DEG 38KT 4431 9097 

$$

Wetenkamp

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 3:45 PM CDTSevere Thunderstorm WarningARXBuffalo60 min
May 25, 4:06 PM CDTSevere Thunderstorm WarningARXTaylor54 min
May 25, 4:47 PM CDTSpecial Weather StatementARXTrempealeau28 min
May 25, 4:50 PM CDTSevere Thunderstorm WarningARXBuffalo, Trempealeau40 min
May 25, 5:01 PM CDTSevere Thunderstorm WarningARXTaylor44 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2021Every 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.