Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 67, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Aug 7, 2021, 1:17 PM CDT for Richland County, Vernon County, Wisconsin. It was in force for 58 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
- Aug 7, 2021, 1:17 PM CDT (18:17 UTC)
- Expired
- Aug 7, 2021, 2:15 PM CDT
- In force
- 58 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Richland County, WI, Vernon County, WI
The radar
The La Crosse radar (KARX), 73 km from the middle of the area, began a volume at 18:16 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 |
|---|---|---|---|
| Aug 7, 1:49 PM CDT | HAIL 1 | Yuba, WI | PUBLIC REPORT PHOTO VIA WKBT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 6.3 hours before the alert went out and 210 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.
- Mixed-layer CAPE
- 1645 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 1006 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
444
WUUS53 KARX 071817
SVRARX
WIC103-123-071915-
/O.NEW.KARX.SV.W.0067.210807T1817Z-210807T1915Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
117 PM CDT Sat Aug 7 2021
The National Weather Service in La Crosse has issued a
* Severe Thunderstorm Warning for...
Eastern Vernon County in southwestern Wisconsin...
Northern Richland County in southwestern Wisconsin...
* Until 215 PM CDT.
* At 117 PM CDT, a severe thunderstorm was located over La Farge, or
9 miles east of Viroqua, moving east at 25 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...
Hillsboro, La Farge, Germantown, Rockbridge, Viola, Liberty,
Cazenovia, Ross, Yuba, County Roads D And N N, Loyd, Bunker Hill,
Highway 80 And County C C, Woodstock, Gillingham, Bloom City,
Benders Corners, Neptune, Buck Creek and Highway 82 And County A.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4334 9019 4348 9080 4367 9080 4365 9031
4355 9031 4355 9019
TIME...MOT...LOC 1817Z 270DEG 22KT 4358 9069
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Skow4 follow-up statements
978
WWUS53 KARX 071823
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
123 PM CDT Sat Aug 7 2021
WIC103-123-071915-
/O.CON.KARX.SV.W.0067.000000T0000Z-210807T1915Z/
Vernon WI-Richland WI-
123 PM CDT Sat Aug 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM CDT
FOR EASTERN VERNON AND NORTHERN RICHLAND COUNTIES...
At 123 PM CDT, a severe thunderstorm was located over La Farge, or 12
miles east of Viroqua, moving east at 25 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Hillsboro, La Farge, Germantown, Rockbridge, Viola, Liberty,
Cazenovia, Ross, Yuba, County Roads D And N N, Loyd, Bunker Hill,
Highway 80 And County C C, Woodstock, Gillingham, Bloom City, Benders
Corners, Neptune, Buck Creek and Highway 82 And County A.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4334 9019 4348 9080 4367 9080 4365 9031
4355 9031 4355 9019
TIME...MOT...LOC 1823Z 270DEG 22KT 4358 9064
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Skow446
WWUS53 KARX 071834
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
134 PM CDT Sat Aug 7 2021
WIC103-123-071915-
/O.CON.KARX.SV.W.0067.000000T0000Z-210807T1915Z/
Vernon WI-Richland WI-
134 PM CDT Sat Aug 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM CDT
FOR EAST CENTRAL VERNON AND NORTHERN RICHLAND COUNTIES...
At 133 PM CDT, a severe thunderstorm was located near La Farge, or 16
miles northwest of Richland Center, moving east at 25 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Hillsboro, La Farge, Germantown, Rockbridge, Cazenovia, and Yuba.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4337 9020 4346 9066 4366 9064 4365 9031
4355 9031 4355 9019
TIME...MOT...LOC 1833Z 278DEG 23KT 4356 9054
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Skow269
WWUS53 KARX 071850
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
150 PM CDT Sat Aug 7 2021
WIC103-123-071915-
/O.CON.KARX.SV.W.0067.000000T0000Z-210807T1915Z/
Vernon WI-Richland WI-
150 PM CDT Sat Aug 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM CDT
FOR EAST CENTRAL VERNON AND NORTHEASTERN RICHLAND COUNTIES...
At 150 PM CDT, a severe thunderstorm was located 7 miles southwest of
Hillsboro, or 15 miles north of Richland Center, moving east at 25
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Hillsboro, Germantown, Rockbridge, Cazenovia, Yuba, County Roads D
And N N, Bunker Hill, Woodstock, White City, and Bloom City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4341 9020 4346 9056 4366 9054 4365 9031
4355 9031 4355 9019
TIME...MOT...LOC 1850Z 270DEG 22KT 4356 9039
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Skow488
WWUS53 KARX 071914
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
214 PM CDT Sat Aug 7 2021
WIC103-123-071924-
/O.EXP.KARX.SV.W.0067.000000T0000Z-210807T1915Z/
Vernon WI-Richland WI-
214 PM CDT Sat Aug 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL VERNON AND
NORTHEASTERN RICHLAND COUNTIES WILL EXPIRE AT 215 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
LAT...LON 4341 9020 4346 9056 4366 9054 4365 9031
4355 9031 4355 9019
TIME...MOT...LOC 1914Z 270DEG 22KT 4356 9020
$$
SkowThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 6:26 AM CDT | Special Weather Statement | ARX | Buffalo | 34 min |
| Aug 7, 7:40 AM CDT | Special Weather Statement | ARX | La Crosse | 35 min |
| Aug 7, 9:17 AM CDT | Special Weather Statement | ARX | Juneau | 28 min |
| Aug 7, 10:12 AM CDT | Special Weather Statement | ARX | Adams | 33 min |
| Aug 7, 11:17 AM CDT | Special Weather Statement | ARX | Crawford | 28 min |
| Aug 7, 11:24 AM CDT | Severe Thunderstorm Warning | ARX | La Crosse, Vernon | 27 min |
| Aug 7, 11:26 AM CDT | Severe Thunderstorm Warning | ARX | Crawford, Richland, Vernon | 21 min |
| Aug 7, 12:19 PM CDT | Special Weather Statement | ARX | Richland | 26 min |
| Aug 7, 12:59 PM CDT | Areal Flood Advisory | ARX | Buffalo | 2 hr |
| Aug 7, 1:48 PM CDT | Special Weather Statement | ARX | La Crosse | 27 min |
| Aug 7, 2:14 PM CDT | Special Weather Statement | ARX | La Crosse | 31 min |
| Aug 7, 2:23 PM CDT | Areal Flood Advisory | ARX | La Crosse, Trempealeau | 112 min |
| Aug 7, 3:02 PM CDT | River Flood Warning | ARX | Monroe, Vernon | 21 days |
| Aug 7, 3:02 PM CDT | River Flood Warning | ARX | Vernon | 4 days |
| Aug 7, 3:02 PM CDT | River Flood Warning | ARX | Richland, Vernon | 4 days |
| Aug 7, 3:02 PM CDT | River Flood Warning | ARX | Richland, Vernon | 61 hr |
| Aug 7, 3:02 PM CDT | River Flood Warning | ARX | Buffalo, Trempealeau | 19 hr |
| Aug 7, 3:07 PM CDT | Areal Flood Advisory | ARX | La Crosse | 74 min |
| Aug 7, 3:17 PM CDT | Special Weather Statement | ARX | Vernon | 73 min |
| Aug 7, 3:23 PM CDT | Flash Flood Warning | ARX | La Crosse, Monroe | 3 hr |
| Aug 7, 3:35 PM CDT | Severe Thunderstorm Warning | ARX | Vernon | 55 min |
| Aug 7, 3:52 PM CDT | Severe Thunderstorm Warning | ARX | Crawford | 38 min |
| Aug 7, 4:00 PM CDT | Tornado Warning | ARX | Crawford | 30 min |
| Aug 7, 4:05 PM CDT | Severe Thunderstorm Warning | ARX | Richland | 40 min |
| Aug 7, 4:19 PM CDT | Tornado Warning | ARX | Crawford, Grant | 41 min |
| Aug 7, 4:27 PM CDT | Flash Flood Warning | ARX | Vernon | 3 hr |
| Aug 7, 4:56 PM CDT | Tornado Warning | ARX | Grant | 19 min |
| Aug 7, 5:53 PM CDT | Severe Thunderstorm Warning | ARX | Juneau, Monroe, Vernon | 37 min |
| Aug 7, 6:18 PM CDT | Flash Flood Watch | ARX | Adams, Buffalo, Clark, Crawford, Jackson, Juneau and 5 more | 35 hr |
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.