Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 86, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Aug 24, 2021, 6:50 AM CDT for Jackson County, Trempealeau County, Wisconsin. It was in force for 40 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 24, 2021, 6:50 AM CDT (11:50 UTC)
- Expired
- Aug 24, 2021, 7:30 AM CDT
- In force
- 40 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Jackson County, WI, Trempealeau County, WI
The radar
The La Crosse radar (KARX), 72 km from the middle of the area, began a volume at 11:51 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 nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 11.8 hours before the alert went out and 200 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
- 501 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 1780 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
605
WUUS53 KARX 241150
SVRARX
WIC053-121-241230-
/O.NEW.KARX.SV.W.0086.210824T1150Z-210824T1230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
650 AM CDT Tue Aug 24 2021
The National Weather Service in La Crosse has issued a
* Severe Thunderstorm Warning for...
Northwestern Jackson County in west central Wisconsin...
Northeastern Trempealeau County in west central Wisconsin...
* Until 730 AM CDT.
* At 650 AM CDT, a severe thunderstorm was located near Strum, or 8
miles north of Whitehall, moving east at 40 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...
Osseo, Strum, Price, York, Northfield, Alma Center, Levis, Pigeon
Falls, Chimney Rock, North Branch, Elk Creek, Hixton Alma Center K
O A, Pleasantville, Highway 53 And County E and Requa.
This includes Interstate 94 between mile markers 88 and 105.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4439 9092 4439 9145 4460 9144 4459 9093
TIME...MOT...LOC 1150Z 268DEG 34KT 4448 9137
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Rieck3 follow-up statements
340
WWUS53 KARX 241159
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
659 AM CDT Tue Aug 24 2021
WIC053-121-241230-
/O.CON.KARX.SV.W.0086.000000T0000Z-210824T1230Z/
Jackson WI-Trempealeau WI-
659 AM CDT Tue Aug 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 AM CDT
FOR NORTHWESTERN JACKSON AND NORTHEASTERN TREMPEALEAU COUNTIES...
At 659 AM CDT, a severe thunderstorm was located near Osseo, or 8
miles north of Whitehall, moving east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Osseo, Strum, Price, York, Northfield, Alma Center, Levis, Pigeon
Falls, Chimney Rock, North Branch, Elk Creek, and Requa.
This includes Interstate 94 between mile markers 88 and 105.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4439 9092 4439 9145 4460 9144 4459 9093
TIME...MOT...LOC 1159Z 268DEG 34KT 4448 9125
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Rieck030
WWUS53 KARX 241212
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
712 AM CDT Tue Aug 24 2021
WIC053-121-241230-
/O.CON.KARX.SV.W.0086.000000T0000Z-210824T1230Z/
Jackson WI-Trempealeau WI-
712 AM CDT Tue Aug 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 AM CDT
FOR NORTHWESTERN JACKSON AND NORTHEASTERN TREMPEALEAU COUNTIES...
At 711 AM CDT, a severe thunderstorm was located 7 miles southwest of
Price, or 12 miles northeast of Whitehall, moving east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Law enforcement reported powerlines down in Eleva.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Osseo, Strum, Price, York, Northfield, Alma Center, Levis, Pigeon
Falls, North Branch, Pleasantville, and Requa.
This includes Interstate 94 between mile markers 88 and 105.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4439 9092 4439 9139 4460 9139 4459 9093
TIME...MOT...LOC 1211Z 268DEG 32KT 4448 9111
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Rieck609
WWUS53 KARX 241220
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
720 AM CDT Tue Aug 24 2021
WIC053-121-241230-
/O.CON.KARX.SV.W.0086.000000T0000Z-210824T1230Z/
Jackson WI-Trempealeau WI-
720 AM CDT Tue Aug 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 AM CDT
FOR NORTHWESTERN JACKSON AND NORTHEASTERN TREMPEALEAU COUNTIES...
At 720 AM CDT, a severe thunderstorm was located near Humbird, or 14
miles northwest of Black River Falls, moving east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Osseo, Price, York, Northfield, Alma Center, Levis, Pigeon Falls,
Hixton Alma Center K O A, Requa and North Branch.
This includes Interstate 94 between mile markers 88 and 105.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4439 9092 4439 9127 4460 9127 4459 9093
TIME...MOT...LOC 1220Z 270DEG 34KT 4448 9099
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RieckThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 6:11 AM CDT | Special Weather Statement | ARX | Buffalo, Trempealeau | 94 min |
| Aug 24, 7:18 AM CDT | Severe Thunderstorm Warning | ARX | Clark, Jackson | 72 min |
| Aug 24, 7:33 AM CDT | Special Weather Statement | ARX | Buffalo | 72 min |
| Aug 24, 8:41 AM CDT | Special Weather Statement | ARX | Trempealeau | 49 min |
| Aug 24, 9:07 AM CDT | Special Weather Statement | ARX | Clark, Taylor | 53 min |
| Aug 24, 10:00 AM CDT | Special Weather Statement | ARX | Adams | 15 min |
| Aug 24, 3:35 PM CDT | Tornado Warning | ARX | Grant | 40 min |
| Aug 24, 4:09 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 36 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.