Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 72, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Aug 8, 2021, 3:32 PM CDT for Adams County, Wisconsin. It was in force for 31 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 8, 2021, 3:32 PM CDT (20:32 UTC)
- Expired
- Aug 8, 2021, 4:03 PM CDT
- In force
- 31 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Adams County, WI
The radar
The La Crosse radar (KARX), 118 km from the middle of the area, began a volume at 20:35 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 8, 3:48 PM CDT | TSTM WND DMG | 8 E Friendship, WI | SEVERAL TREES BLOWN DOWN |
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 |
|---|---|---|---|
| Aug 8, 1:59 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.5 hours before the alert went out and 142 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
- 445 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 568 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
063 WUUS53 KARX 082032 SVRARX WIC001-082115- /O.NEW.KARX.SV.W.0072.210808T2032Z-210808T2115Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service La Crosse WI 332 PM CDT Sun Aug 8 2021 The National Weather Service in La Crosse has issued a * Severe Thunderstorm Warning for... Northeastern Adams County in central Wisconsin... * Until 415 PM CDT. * At 331 PM CDT, a severe thunderstorm was located 8 miles southeast of Adams, or 9 miles southeast of Friendship, moving northeast at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Big Flats and rural parts of eastern Adams County PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4385 8993 4425 8963 4424 8960 4375 8960 TIME...MOT...LOC 2031Z 206DEG 22KT 4389 8967 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Shea
4 follow-up statements
071 WWUS53 KARX 082037 SVSARX Severe Weather Statement National Weather Service La Crosse WI 337 PM CDT Sun Aug 8 2021 WIC001-082115- /O.CON.KARX.SV.W.0072.000000T0000Z-210808T2115Z/ Adams WI- 337 PM CDT Sun Aug 8 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR NORTHEASTERN ADAMS COUNTY... At 336 PM CDT, a severe thunderstorm was located near Grand Marsh or 10 miles east of Friendship, moving northeast at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect possible damage to roofs, siding, and trees. This severe thunderstorm will remain over mainly rural areas of northeastern Adams County, including the following locations... Brooks, Colburn, The Town Of Quincy, County Roads G And O, County Roads A And B, County Roads G And M and The Colburn Wildlife Area. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4385 8993 4425 8963 4424 8960 4375 8960 TIME...MOT...LOC 2036Z 221DEG 16KT 4389 8964 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Shea
905 WWUS53 KARX 082042 SVSARX Severe Weather Statement National Weather Service La Crosse WI 342 PM CDT Sun Aug 8 2021 WIC001-082115- /O.CON.KARX.SV.W.0072.000000T0000Z-210808T2115Z/ Adams WI- 342 PM CDT Sun Aug 8 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR NORTHEASTERN ADAMS COUNTY... At 341 PM CDT, a severe thunderstorm was located near Westfield, or 11 miles east of Friendship, moving northeast at 25 mph. Earlier rotation with this storm has weakened. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect possible damage to roofs, siding, and trees. This severe thunderstorm will remain over mainly rural areas of northeastern Adams County, including the following locations... Brooks, Colburn, County Roads G And O, County Roads G And M, The Colburn Wildlife Area, County Roads O And W and County Roads D And G. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4398 8983 4425 8963 4424 8960 4375 8960 TIME...MOT...LOC 2041Z 222DEG 20KT 4392 8961 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Shea
985 WWUS53 KARX 082056 SVSARX Severe Weather Statement National Weather Service La Crosse WI 356 PM CDT Sun Aug 8 2021 WIC001-082115- /O.CON.KARX.SV.W.0072.000000T0000Z-210808T2115Z/ Adams WI- 356 PM CDT Sun Aug 8 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR NORTHEASTERN ADAMS COUNTY... At 355 PM CDT, a severe thunderstorm was located 8 miles north of Westfield, or 13 miles east of Friendship, moving northeast at 25 mph. These storms continue to weaken. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect possible damage to roofs, siding, and trees. This severe thunderstorm will remain over mainly rural areas of northeastern Adams County, including the following locations... Colburn, County Roads C And G, The Preston Cliffs, Highway 21 And County G, County Roads G And O, County Roads G And M and The Ship Rock Wayside. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4398 8983 4425 8963 4424 8960 4391 8960 TIME...MOT...LOC 2055Z 206DEG 22KT 4400 8956 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Shea
455
WWUS53 KARX 082103
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
403 PM CDT Sun Aug 8 2021
WIC001-082112-
/O.CAN.KARX.SV.W.0072.000000T0000Z-210808T2115Z/
Adams WI-
403 PM CDT Sun Aug 8 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ADAMS COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled. However heavy rain is still possible with these
storms.
A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
central Wisconsin.
LAT...LON 4398 8983 4425 8963 4424 8960 4391 8960
TIME...MOT...LOC 2100Z 206DEG 22KT 4404 8953
$$
SheaThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 7:16 PM CDT | Areal Flood Warning | ARX | Vernon | 6 hr |
| Aug 7, 8:59 PM CDT | River Flood Warning | ARX | Crawford | 5 days |
| Aug 7, 8:59 PM CDT | River Flood Warning | ARX | Crawford | 6 days |
| Aug 7, 8:59 PM CDT | River Flood Warning | ARX | Crawford | 6 days |
| Aug 7, 9:14 PM CDT | River Flood Warning | ARX | Jackson | 48 hr |
| Aug 8, 2:27 PM CDT | Special Weather Statement | ARX | Adams, Jackson, Juneau, Monroe | 78 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.