Alert archive / Wisconsin / Tornado Warnings in 2021
Tornado Warning 12, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Aug 24, 2021, 3:35 PM CDT for Grant County, Wisconsin. It was in force for 40 min. 3 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 24, 2021, 3:35 PM CDT (20:35 UTC)
- Expired
- Aug 24, 2021, 4:15 PM CDT
- In force
- 40 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
County Grant County, WI
The radar
The Quad Cities radar (KDVN), 114 km from the middle of the area, began a volume at 20:36 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 24, 3:59 PM CDT | TSTM WND DMG | Dickeyville, WI | SOME LARGE TREES DOWN. TIME ESTIMATED FROM RADAR. |
| Aug 24, 4:05 PM CDT | TSTM WND GST 57 | 2 S Dickeyville, WI | |
| Aug 24, 4:15 PM CDT | TSTM WND GST 58 | Dickeyville, WI |
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 24, 1:52 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 8.6 hours before the alert went out and 114 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
- 1809 J/kg
- Mixed-layer CIN
- -127 J/kg
- Mixed-layer LCL
- 1284 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
622
WFUS53 KARX 242035
TORARX
WIC043-242115-
/O.NEW.KARX.TO.W.0012.210824T2035Z-210824T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service La Crosse WI
335 PM CDT Tue Aug 24 2021
The National Weather Service in La Crosse has issued a
* Tornado Warning for...
Southeastern Grant County in southwestern Wisconsin...
* Until 415 PM CDT.
* At 335 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Sherrill, or 11 miles north of Dubuque, moving
east at 20 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...
Dickeyville around 400 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Louisburg, Big Patch, Tennyson, Potosi, Georgetown and Cornelia.
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.
&&
LAT...LON 4261 9070 4263 9070 4264 9073 4266 9080
4269 9079 4270 9045 4256 9047
TIME...MOT...LOC 2035Z 276DEG 19KT 4267 9076
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Kurz3 follow-up statements
311
WWUS53 KARX 242051
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
351 PM CDT Tue Aug 24 2021
WIC043-242115-
/O.CON.KARX.TO.W.0012.000000T0000Z-210824T2115Z/
Grant WI-
351 PM CDT Tue Aug 24 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
SOUTHEASTERN GRANT COUNTY...
At 351 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Dickeyville, or 10 miles north of Dubuque, moving
east at 20 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Dickeyville around 405 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Louisburg, Big Patch and Georgetown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4261 9070 4263 9070 4264 9071 4267 9071
4268 9045 4256 9047
TIME...MOT...LOC 2051Z 281DEG 17KT 4265 9067
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Kurz703
WWUS53 KARX 242104
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
404 PM CDT Tue Aug 24 2021
WIC043-242115-
/O.CON.KARX.TO.W.0012.000000T0000Z-210824T2115Z/
Grant WI-
404 PM CDT Tue Aug 24 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
SOUTHEASTERN GRANT COUNTY...
At 404 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Dickeyville, or 9 miles southwest of Platteville,
moving east at 25 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 tornadic thunderstorm will remain over mainly rural areas of
southeastern Grant County, including the following locations...
Louisburg and Georgetown.
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.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
&&
LAT...LON 4259 9062 4265 9062 4265 9045 4256 9047
TIME...MOT...LOC 2104Z 281DEG 20KT 4262 9057
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Kurz281
WWUS53 KARX 242112
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
412 PM CDT Tue Aug 24 2021
WIC043-242120-
/O.EXP.KARX.TO.W.0012.000000T0000Z-210824T2115Z/
Grant WI-
412 PM CDT Tue Aug 24 2021
...THE TORNADO WARNING FOR SOUTHEASTERN GRANT COUNTY WILL EXPIRE AT
415 PM CDT...
The tornado threat has diminished and the Tornado Warning will be
allowed to expire. However large hail and damaging winds are still
possible with this thunderstorm.
A Severe Thunderstorm Warning still remains in effect for southern
Grant County until 445 PM CDT.
A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
southwestern Wisconsin.
LAT...LON 4259 9062 4265 9062 4265 9045 4256 9047
TIME...MOT...LOC 2110Z 276DEG 19KT 4262 9053
$$
KurzThe 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, 6:50 AM CDT | Severe Thunderstorm Warning | ARX | Jackson, Trempealeau | 40 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, 4:09 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 36 min |
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.