Alert archive / Wisconsin / Tornado Warnings in 2026
Tornado Warning 21, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Apr 17, 2026, 2:58 PM CDT for Clark County, Jackson County, Wisconsin. It was in force for 35 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
- Apr 17, 2026, 2:58 PM CDT (19:58 UTC)
- Expired
- Apr 17, 2026, 3:33 PM CDT
- In force
- 35 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 2.5 in
Counties Clark County, WI, Jackson County, WI
The radar
The La Crosse radar (KARX), 86 km from the middle of the area, began a volume at 20:00 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 17, 9:23 AM CDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Apr 17, 12:40 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.0 hours before the alert went out and 252 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2301 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 188 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
177
WFUS53 KARX 171958
TORARX
WIC019-053-172045-
/O.NEW.KARX.TO.W.0021.260417T1958Z-260417T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service La Crosse WI
258 PM CDT Fri Apr 17 2026
The National Weather Service in La Crosse has issued a
* Tornado Warning for...
Southeastern Clark County in central Wisconsin...
East central Jackson County in west central Wisconsin...
* Until 345 PM CDT.
* At 258 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Shortville, or 9 miles south of Neillsville,
moving northeast at 45 mph.
HAZARD...Tornado and tennis ball 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...
Shortville around 305 PM CDT.
Other locations impacted by this tornadic thunderstorm include Chili,
Ballard Road And Pray Avenue, The Black River Correctional Center,
Chili Corners, Potters Flowage, Lynn, and The Cunningham Airfield.
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 4437 9032 4423 9067 4432 9079 4473 9032
TIME...MOT...LOC 1958Z 221DEG 40KT 4442 9057
TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
$$
Baumgardt4 follow-up statements
421
WWUS53 KARX 172004 RRA
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
304 PM CDT Fri Apr 17 2026
WIC019-053-172045-
/O.CON.KARX.TO.W.0021.000000T0000Z-260417T2045Z/
Clark WI-Jackson WI-
304 PM CDT Fri Apr 17 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR
SOUTHEASTERN CLARK AND EAST CENTRAL JACKSON COUNTIES...
At 304 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Shortville, or 8 miles southeast of Neillsville,
moving northeast at 60 mph.
HAZARD...Tornado and baseball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
southeastern Clark and east central Jackson Counties, including the
following locations... Chili, Ballard Road And Pray Avenue, The Black
River Correctional Center, Chili Corners, Lynn, The Cunningham
Airfield, and Seventeen Flowage.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4437 9032 4428 9061 4433 9071 4473 9032
TIME...MOT...LOC 2004Z 230DEG 52KT 4448 9045
TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.75 IN
$$
Baumgardt145
WWUS53 KARX 172013
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
313 PM CDT Fri Apr 17 2026
WIC019-053-172045-
/O.CON.KARX.TO.W.0021.000000T0000Z-260417T2045Z/
Clark WI-Jackson WI-
313 PM CDT Fri Apr 17 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR
SOUTHEASTERN CLARK AND EAST CENTRAL JACKSON COUNTIES...
At 313 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Shortville, or 11 miles southeast of Neillsville,
moving northeast at 30 mph.
HAZARD...Tornado and half dollar 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.
Locations impacted include...
Shortville, Lynn, Granton, Chili, Ballard Road And Pray Avenue, Chili
Corners, The Cunningham Airfield, Pray, and Nevins.
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 4430 9054 4438 9061 4455 9050 4473 9032
4437 9032
TIME...MOT...LOC 2013Z 232DEG 25KT 4447 9039
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
$$
Baumgardt976
WWUS53 KARX 172022
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
322 PM CDT Fri Apr 17 2026
WIC019-053-172045-
/O.CON.KARX.TO.W.0021.000000T0000Z-260417T2045Z/
Clark WI-Jackson WI-
322 PM CDT Fri Apr 17 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR
SOUTHEASTERN CLARK AND EAST CENTRAL JACKSON COUNTIES...
At 322 PM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles southwest of Marshfield, or 14 miles east of
Neillsville, moving northeast at 45 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Lynn, Chili, The Cunningham Airfield, Chili Corners, and Nevins.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4439 9041 4445 9050 4458 9042 4473 9032
4440 9033
TIME...MOT...LOC 2022Z 221DEG 40KT 4455 9029
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Baumgardt479
WWUS53 KARX 172033
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
333 PM CDT Fri Apr 17 2026
WIC019-053-172043-
/O.CAN.KARX.TO.W.0021.000000T0000Z-260417T2045Z/
Clark WI-Jackson WI-
333 PM CDT Fri Apr 17 2026
...THE TORNADO WARNING FOR SOUTHEASTERN CLARK AND EAST CENTRAL
JACKSON COUNTIES IS CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 800 PM CDT for central and
west central Wisconsin.
&&
LAT...LON 4439 9041 4445 9050 4458 9042 4473 9032
4440 9033
TIME...MOT...LOC 2032Z 221DEG 40KT 4464 9018
$$
BaumgardtThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 11:06 AM CDT | River Flood Warning | ARX | Crawford | 22 hr |
| Apr 17, 1:23 PM CDT | Special Weather Statement | ARX | Grant | 37 min |
| Apr 17, 2:03 PM CDT | Special Weather Statement | ARX | Grant, Richland | 27 min |
| Apr 17, 2:36 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Taylor | 39 min |
| Apr 17, 2:41 PM CDT | Severe Thunderstorm Warning | ARX | Richland | 36 min |
| Apr 17, 2:45 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Jackson | 30 min |
| Apr 17, 2:50 PM CDT | Tornado Warning | ARX | Taylor | 40 min |
| Apr 17, 2:57 PM CDT | Tornado Warning | ARX | Richland | 18 min |
| Apr 17, 3:07 PM CDT | Tornado Warning | ARX | Buffalo, Trempealeau | 38 min |
| Apr 17, 3:10 PM CDT | Severe Thunderstorm Warning | ARX | Adams, Jackson, Juneau, Monroe | 50 min |
| Apr 17, 3:39 PM CDT | Tornado Warning | ARX | Buffalo, Trempealeau | 51 min |
| Apr 17, 3:41 PM CDT | Tornado Warning | ARX | Buffalo, Trempealeau | 49 min |
| Apr 17, 3:48 PM CDT | Tornado Warning | ARX | Crawford, Vernon | 42 min |
| Apr 17, 4:05 PM CDT | Tornado Warning | ARX | Jackson, Trempealeau | 40 min |
| Apr 17, 4:07 PM CDT | Tornado Warning | ARX | Grant | 38 min |
| Apr 17, 4:09 PM CDT | Tornado Warning | ARX | Jackson, Trempealeau | 51 min |
| Apr 17, 4:30 PM CDT | Tornado Warning | ARX | Clark | 27 min |
| Apr 17, 4:35 PM CDT | Tornado Warning | ARX | Clark, Jackson | 40 min |
| Apr 17, 4:54 PM CDT | Tornado Warning | ARX | Adams, Juneau | 18 min |
| Apr 17, 4:58 PM CDT | Special Weather Statement | ARX | Grant | 32 min |
| Apr 17, 5:13 PM CDT | Tornado Warning | ARX | Clark | 33 min |
| Apr 17, 5:24 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Jackson | 51 min |
| Apr 17, 5:30 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 28 min |
| Apr 17, 5:37 PM CDT | Severe Thunderstorm Warning | ARX | Jackson, Monroe | 38 min |
Nearby
Tornado Warnings in Wisconsin, 2026Every tornado warning in 2026Tornadoes in 2026
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.