Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 77, NWS La Crosse, WI

August 10, 2021Richland County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Aug 10, 2021, 4:57 PM CDT for Richland County, Wisconsin. It was in force for 18 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: Aug 10, 2021, 4:57 PM CDT (21:57 UTC)
Expired: Aug 10, 2021, 5:15 PM CDT
In force: 18 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Richland County, WI

The radar

The La Crosse radar (KARX), 96 km from the middle of the area, began a volume at 21:59 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
Aug 10, 2:08 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.0 hours before the alert went out and 183 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: 3755 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 819 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -37 m²/s²
0-3 km storm-relative helicity: 4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

370 
WUUS53 KARX 102157
SVRARX
WIC103-102215-
/O.NEW.KARX.SV.W.0077.210810T2157Z-210810T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
457 PM CDT Tue Aug 10 2021

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for...
  Eastern Richland County in southwestern Wisconsin...

* Until 515 PM CDT.

* At 457 PM CDT, a severe thunderstorm was located near Richland
  Center, moving east at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Law enforcement.

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

* Locations impacted include...
  Richland Center, Lone Rock, Rockbridge, Ithaca, Orion, Cazenovia,
  County Roads D And N N, Loyd, Bunker Hill, Highway 58 And County B,
  Woodstock, Gillingham, Sextonville, Neptune, Buck Creek, Gotham,
  Hub City, Highways 80 And 56, County Roads O And O O and Highways
  58 And 154.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4317 9022 4320 9026 4320 9028 4321 9029
      4321 9035 4320 9040 4320 9043 4346 9048
      4353 9019 4337 9019 4317 9020
TIME...MOT...LOC 2157Z 247DEG 25KT 4329 9031 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Skow

1 follow-up statement

271 
WWUS53 KARX 102212
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
512 PM CDT Tue Aug 10 2021

WIC103-102222-
/O.EXP.KARX.SV.W.0077.000000T0000Z-210810T2215Z/
Richland WI-
512 PM CDT Tue Aug 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN RICHLAND COUNTY WILL
EXPIRE AT 515 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
southwestern Wisconsin.

LAT...LON 4317 9022 4320 9026 4320 9028 4321 9029
      4321 9035 4320 9040 4320 9043 4346 9048
      4353 9019 4337 9019 4317 9020
TIME...MOT...LOC 2212Z 247DEG 25KT 4332 9020 

$$

Skow

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 2:26 PM CDT	Heat Advisory	ARX	Grant	27 hr
Aug 10, 3:23 PM CDT	Severe Thunderstorm Warning	ARX	Crawford, Grant	52 min
Aug 10, 3:56 PM CDT	Severe Thunderstorm Warning	ARX	Crawford, Grant, Richland	64 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.