Alert archive / Wisconsin / Tornado Warnings in 2021
Tornado Warning 7, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Aug 7, 2021, 4:19 PM CDT for Crawford County, Grant County, Wisconsin. It was in force for 41 min. 7 reports 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, 4:19 PM CDT (21:19 UTC)
- Expired
- Aug 7, 2021, 5:00 PM CDT
- In force
- 41 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Crawford County, WI, Grant County, WI
The radar
The La Crosse radar (KARX), 86 km from the middle of the area, began a volume at 21:23 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, 4:29 PM CDT | TSTM WND GST 60 | Boscobel, WI | POWER POLES DAMAGED. |
| Aug 7, 4:39 PM CDT | TSTM WND DMG | 4 Sw Blue River, WI | LARGE TREES DOWN EAST OF BOSCOBEL. TWO PUBLIC REPORTS OF A POSSIBLE TORNADO IN THIS AREA. |
| Aug 7, 4:41 PM CDT | TSTM WND DMG | 4 E Boscobel, WI | LARGE TREES DOWN AND MOBILE HOMES DAMAGED SOUTHEAST OF BOSCOBEL. |
| Aug 7, 4:49 PM CDT | TSTM WND DMG | 5 Ssw Blue River, WI | BARNS DOWN AND A HOUSE DAMAGED SOUTH OF BLUE RIVER. POSSIBLE TORNADO DAMAGE. |
| Aug 7, 4:50 PM CDT | TORNADO | 3 S Blue River, WI | BLUE RIVER FIRE DEPT REPORTED A TORNADO ON THE GROUND SOUTH OF BLUE RIVER NEAR COUNTY HIGHWAY T. |
| Aug 7, 4:55 PM CDT | HAIL 1.25 | 3 S Blue River, WI | HALF DOLLAR SIZED HAIL SOUTH OF BLUE RIVER. |
| Aug 7, 4:56 PM CDT | FUNNEL CLOUD | 4 Sw Muscoda, WI | MUSCODA FIRE DEPT OBSERVED A FUNNEL CLOUD NEAR RIDGE ROAD. |
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, 9.3 hours before the alert went out and 171 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.
526
WFUS53 KARX 072119
TORARX
WIC023-043-072200-
/O.NEW.KARX.TO.W.0007.210807T2119Z-210807T2200Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service La Crosse WI
419 PM CDT Sat Aug 7 2021
The National Weather Service in La Crosse has issued a
* Tornado Warning for...
Northeastern Grant County in southwestern Wisconsin...
Southeastern Crawford County in southwestern Wisconsin...
* Until 500 PM CDT.
* At 418 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Boscobel, or 17 miles east of Prairie Du Chien,
moving east at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Boscobel around 430 PM CDT.
Muscoda around 500 PM CDT.
Other locations impacted by this tornadic thunderstorm include Red
Oak Ridge, Boydtown, Blue River, Orion, Highways 60 And 61, Woodman
and Easter Rock.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4308 9085 4315 9086 4319 9067 4317 9067
4319 9061 4320 9059 4321 9054 4320 9043
4305 9043
TIME...MOT...LOC 2118Z 266DEG 25KT 4312 9081
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Rieck5 follow-up statements
431
WWUS53 KARX 072127
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
427 PM CDT Sat Aug 7 2021
WIC023-043-072200-
/O.CON.KARX.TO.W.0007.000000T0000Z-210807T2200Z/
Grant WI-Crawford WI-
427 PM CDT Sat Aug 7 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR
NORTHEASTERN GRANT AND EAST CENTRAL CRAWFORD COUNTIES...
At 427 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Boscobel, or 19 miles north of Lancaster, moving
east at 30 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Muscoda around 500 PM CDT.
Other locations impacted by this tornadic thunderstorm include Red
Oak Ridge, Blue River, Orion, Highways 60 And 61, Easter Rock, Port
Andrew and Woodman.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4309 9079 4316 9080 4319 9067 4317 9067
4319 9061 4320 9059 4321 9054 4320 9043
4305 9043
TIME...MOT...LOC 2127Z 266DEG 25KT 4312 9072
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Rieck639
WWUS53 KARX 072136
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
436 PM CDT Sat Aug 7 2021
WIC023-072145-
/O.CAN.KARX.TO.W.0007.000000T0000Z-210807T2200Z/
Crawford WI-
436 PM CDT Sat Aug 7 2021
...THE TORNADO WARNING FOR EAST CENTRAL CRAWFORD COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
LAT...LON 4310 9074 4313 9074 4315 9073 4316 9070
4318 9065 4318 9063 4320 9059 4321 9054
4320 9043 4305 9043
TIME...MOT...LOC 2135Z 265DEG 23KT 4313 9065
$$
WIC043-072200-
/O.CON.KARX.TO.W.0007.000000T0000Z-210807T2200Z/
Grant WI-
436 PM CDT Sat Aug 7 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR
NORTHEASTERN GRANT COUNTY...
At 435 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Boscobel, or 19 miles north of Lancaster, moving
east at 25 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Muscoda around 500 PM CDT.
Other locations impacted by this tornadic thunderstorm include Red
Oak Ridge, Blue River, Orion, Easter Rock and Port Andrew.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4310 9074 4313 9074 4315 9073 4316 9070
4318 9065 4318 9063 4320 9059 4321 9054
4320 9043 4305 9043
TIME...MOT...LOC 2135Z 265DEG 23KT 4313 9065
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Rieck656
WWUS53 KARX 072139
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
439 PM CDT Sat Aug 7 2021
WIC043-072200-
/O.CON.KARX.TO.W.0007.000000T0000Z-210807T2200Z/
Grant WI-
439 PM CDT Sat Aug 7 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR
NORTHEASTERN GRANT COUNTY...
At 439 PM CDT, a confirmed tornado was located near Boscobel, or 18
miles southwest of Richland Center, moving east at 25 mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Muscoda around 500 PM CDT.
Other locations impacted by this tornadic thunderstorm include Red
Oak Ridge, Blue River, Orion and Port Andrew.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4310 9069 4316 9069 4318 9065 4318 9063
4320 9059 4321 9054 4320 9043 4305 9043
TIME...MOT...LOC 2139Z 265DEG 24KT 4313 9062
TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN
$$
Rieck305
WWUS53 KARX 072143
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
443 PM CDT Sat Aug 7 2021
WIC043-072200-
/O.CON.KARX.TO.W.0007.000000T0000Z-210807T2200Z/
Grant WI-
443 PM CDT Sat Aug 7 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR
NORTHEASTERN GRANT COUNTY...
At 443 PM CDT, a confirmed tornado was located near Boscobel, or 17
miles southwest of Richland Center, moving east at 30 mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Public confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Muscoda around 500 PM CDT.
Other locations impacted by this tornadic thunderstorm include Red
Oak Ridge, Blue River, Orion and Port Andrew.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4310 9065 4314 9067 4318 9065 4318 9063
4320 9059 4321 9054 4320 9043 4305 9043
TIME...MOT...LOC 2143Z 269DEG 24KT 4313 9059
TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN
$$
Rieck567
WWUS53 KARX 072150
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
450 PM CDT Sat Aug 7 2021
WIC043-072200-
/O.CON.KARX.TO.W.0007.000000T0000Z-210807T2200Z/
Grant WI-
450 PM CDT Sat Aug 7 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR
NORTHEASTERN GRANT COUNTY...
At 450 PM CDT, a confirmed tornado was located near Muscoda, or 16
miles southwest of Richland Center, moving east at 25 mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Public confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Muscoda around 505 PM CDT.
Other locations impacted by this tornadic thunderstorm include Red
Oak Ridge, Blue River, Orion and Port Andrew.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4311 9063 4318 9063 4320 9059 4321 9054
4320 9043 4305 9043
TIME...MOT...LOC 2150Z 265DEG 22KT 4313 9054
TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN
$$
RieckThe 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, 1:17 PM CDT | Severe Thunderstorm Warning | ARX | Richland, Vernon | 58 min |
| 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, 4:27 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
Tornado Warnings in Wisconsin, 2021Every tornado warning in 2021Tornadoes 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.