Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 99, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Aug 28, 2021, 1:40 AM CDT for Crawford County, Richland County, Wisconsin. It was in force for 49 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 28, 2021, 1:40 AM CDT (06:40 UTC)
- Expired
- Aug 28, 2021, 2:29 AM CDT
- In force
- 49 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Crawford County, WI, Richland County, WI
The radar
The La Crosse radar (KARX), 73 km from the middle of the area, began a volume at 06:41 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
Davenport, (KDVN), launched 00:00Z, 6.7 hours before the alert went out and 196 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
- 995 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 1707 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted.
311
WUUS53 KARX 280640
SVRARX
WIC023-103-280745-
/O.NEW.KARX.SV.W.0099.210828T0640Z-210828T0745Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
140 AM CDT Sat Aug 28 2021
The National Weather Service in La Crosse has issued a
* Severe Thunderstorm Warning for...
Richland County in southwestern Wisconsin...
Northeastern Crawford County in southwestern Wisconsin...
* Until 245 AM CDT.
* At 140 AM CDT, a severe thunderstorm was located 11 miles north of
Boscobel, or 13 miles west of Richland Center, moving east at 35
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Richland Center, Germantown, Excelsior, Rockbridge, Ithaca,
Soldiers Grove, and Sylvan.
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 4321 9070 4342 9081 4342 9068 4345 9067
4356 9024 4355 9019 4322 9019
TIME...MOT...LOC 0640Z 256DEG 32KT 4331 9065
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Skow3 follow-up statements
260
WWUS53 KARX 280656
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
156 AM CDT Sat Aug 28 2021
WIC023-280706-
/O.CAN.KARX.SV.W.0099.000000T0000Z-210828T0745Z/
Crawford WI-
156 AM CDT Sat Aug 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CRAWFORD COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4321 9065 4345 9067 4356 9024 4355 9019
4322 9019
TIME...MOT...LOC 0656Z 256DEG 32KT 4335 9046
$$
WIC103-280745-
/O.CON.KARX.SV.W.0099.000000T0000Z-210828T0745Z/
Richland WI-
156 AM CDT Sat Aug 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM CDT
FOR RICHLAND COUNTY...
At 156 AM CDT, a severe thunderstorm was located near Richland
Center, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Richland Center, Germantown, Excelsior, Rockbridge, Ithaca, Sylvan,
Cazenovia, Boaz, County Roads D And N N, Eagle Cave, Eagle Corners,
Loyd, Bunker Hill, Highway 58 And County B, Highway 80 And County C
C, Tavera, Woodstock, Gillingham, Bloom City and Sextonville.
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 4321 9065 4345 9067 4356 9024 4355 9019
4322 9019
TIME...MOT...LOC 0656Z 256DEG 32KT 4335 9046
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Skow542
WWUS53 KARX 280710
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
210 AM CDT Sat Aug 28 2021
WIC103-280745-
/O.CON.KARX.SV.W.0099.000000T0000Z-210828T0745Z/
Richland WI-
210 AM CDT Sat Aug 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM CDT
FOR EASTERN RICHLAND COUNTY...
At 210 AM CDT, a severe thunderstorm was located near Richland
Center, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Richland Center, Germantown, Rockbridge, Ithaca, Cazenovia, County
Roads D And N N, Loyd, and Bunker Hill..
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4322 9048 4347 9054 4356 9024 4355 9019
4322 9019
TIME...MOT...LOC 0710Z 256DEG 32KT 4338 9029
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Skow873
WWUS53 KARX 280729
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
229 AM CDT Sat Aug 28 2021
WIC103-280739-
/O.CAN.KARX.SV.W.0099.000000T0000Z-210828T0745Z/
Richland WI-
229 AM CDT Sat Aug 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN RICHLAND COUNTY IS
CANCELLED...
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 cancelled.
LAT...LON 4322 9048 4347 9054 4356 9024 4355 9019
4322 9019
TIME...MOT...LOC 0728Z 256DEG 32KT 4342 9006
$$
SkowThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 7:38 PM CDT | Flash Flood Watch | ARX | Crawford, Richland, Vernon | 18 hr |
| Aug 27, 8:03 PM CDT | Severe Thunderstorm Warning | ARX | Crawford, Grant | 42 min |
| Aug 27, 8:48 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 42 min |
| Aug 27, 8:59 PM CDT | Tornado Warning | ARX | Grant | 31 min |
| Aug 27, 11:24 PM CDT | Special Weather Statement | ARX | Vernon | 36 min |
| Aug 27, 11:31 PM CDT | Severe Thunderstorm Warning | ARX | Richland, Vernon | 59 min |
| Aug 27, 11:41 PM CDT | Flash Flood Warning | ARX | Vernon | 4 hr |
| Aug 27, 11:53 PM CDT | Severe Thunderstorm Warning | ARX | Richland | 37 min |
| Aug 28, 3:15 AM CDT | River Flood Warning | ARX | La Crosse, Trempealeau | 5 days |
| Aug 28, 4:14 AM CDT | River Flood Warning | ARX | Vernon | 31 hr |
| Aug 28, 10:24 AM CDT | River Flood Warning | ARX | Crawford | 4 days |
| Aug 28, 10:38 AM CDT | River Flood Watch | ARX | Juneau | 22 hr |
| Aug 28, 10:46 AM CDT | River Flood Watch | ARX | Crawford | 23 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.