Alert archive / Wisconsin / Tornado Warnings in 2026

Tornado Warning 27, NWS La Crosse, WI

April 17, 2026Allamakee County, Iowa; Houston County, Minnesota; Crawford County, Vernon County, Wisconsin

NWS La Crosse, WI issued this tornado warning at Apr 17, 2026, 3:48 PM CDT for Allamakee County, Iowa; Houston County, Minnesota; Crawford County, Vernon County, Wisconsin. It was in force for 42 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, 3:48 PM CDT (20:48 UTC)
Expired
Apr 17, 2026, 4:30 PM CDT
In force
42 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Allamakee County, IA, Houston County, MN, Crawford County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 36 km from the middle of the area, began a volume at 20:51 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 17, 12:40 PM CDTTornado WatchSPC9 hr
Apr 17, 9:23 AM CDTSevere Thunderstorm WatchSPC11 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.8 hours before the alert went out and 251 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2026-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2026-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 188 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted.

392 
WFUS53 KARX 172048
TORARX
IAC005-MNC055-WIC023-123-172130-
/O.NEW.KARX.TO.W.0027.260417T2048Z-260417T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service La Crosse WI
348 PM CDT Fri Apr 17 2026

The National Weather Service in La Crosse has issued a

* Tornado Warning for...
  North central Allamakee County in northeastern Iowa...
  Southeastern Houston County in southeastern Minnesota...
  Western Vernon County in southwestern Wisconsin...
  Northwestern Crawford County in southwestern Wisconsin...

* Until 430 PM CDT.

* At 348 PM CDT, severe thunderstorms capable of producing a tornado
  were located along a line extending from New Albin to Lansing,
  moving northeast at 45 mph.

  HAZARD...Tornado.

  SOURCE...Weather spotters reported funnel cloud near New Albin.

  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.

* These dangerous storms will be near...
  Viroqua and Coon Valley around 410 PM CDT.
  Westby around 415 PM CDT.

Other locations impacted by these tornadic storms include Jersey
Valley County Park, Red Mound, Esofea, Spring Ridge, Rush Creek,
Runge Hollow, and County Roads B And Y.

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 4332 9127 4353 9133 4373 9100 4372 9078
      4349 9069
TIME...MOT...LOC 2048Z 224DEG 40KT 4349 9127 4337 9123 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Ferguson
3 follow-up statements
891 
WWUS53 KARX 172059
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
359 PM CDT Fri Apr 17 2026

IAC005-MNC055-172107-
/O.CAN.KARX.TO.W.0027.000000T0000Z-260417T2130Z/
Allamakee IA-Houston MN-
359 PM CDT Fri Apr 17 2026

...THE TORNADO WARNING FOR NORTH CENTRAL ALLAMAKEE AND SOUTHEASTERN
HOUSTON COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning for north central Allamakee and 
southeastern Houston Counties has been cancelled. Remember, a 
separate Tornado Warning remains in effect for southwestern 
Allamakee County until 430 PM CDT.

A Tornado Watch remains in effect until 800 PM CDT for southwestern
and west central Wisconsin.

&&

LAT...LON 4336 9113 4360 9121 4373 9100 4372 9078
      4349 9069
TIME...MOT...LOC 2057Z 234DEG 35KT 4356 9116 4343 9112 

$$

WIC023-123-172130-
/O.CON.KARX.TO.W.0027.000000T0000Z-260417T2130Z/
Vernon WI-Crawford WI-
359 PM CDT Fri Apr 17 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR WESTERN
VERNON AND NORTH CENTRAL CRAWFORD COUNTIES...

At 357 PM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from 7 miles northeast of New
Albin to 6 miles northeast of Lansing, moving northeast at 40 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.

These dangerous storms will be near...
  Viroqua and Coon Valley around 410 PM CDT.
  Westby around 415 PM CDT.

Other locations impacted by these tornadic storms include Jersey
Valley County Park, Red Mound, Esofea, Spring Ridge, Runge Hollow,
County Roads B And Y, and Chaseburg.

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 4336 9113 4360 9121 4373 9100 4372 9078
      4349 9069
TIME...MOT...LOC 2057Z 234DEG 35KT 4356 9116 4343 9112 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Ferguson
427 
WWUS53 KARX 172115
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
415 PM CDT Fri Apr 17 2026

WIC023-172125-
/O.CAN.KARX.TO.W.0027.000000T0000Z-260417T2130Z/
Crawford WI-
415 PM CDT Fri Apr 17 2026

...THE TORNADO WARNING FOR NORTH CENTRAL CRAWFORD COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 PM CDT for southwestern
Wisconsin.

&&

LAT...LON 4342 9091 4359 9098 4372 9078 4349 9069
TIME...MOT...LOC 2115Z 236DEG 67KT 4356 9089 4345 9087 

$$

WIC123-172130-
/O.CON.KARX.TO.W.0027.000000T0000Z-260417T2130Z/
Vernon WI-
415 PM CDT Fri Apr 17 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR CENTRAL
VERNON COUNTY...

At 415 PM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from Viroqua to 14 miles south of
Westby, moving northeast at 55 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.

These dangerous storms will be near...
  Westby around 420 PM CDT.

Other locations impacted by these tornadic storms include Jersey
Valley County Park, Liberty Pole, Springville, County Roads B And Y,
Ross, Liberty, and Avalanche.

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 4342 9091 4359 9098 4372 9078 4349 9069
TIME...MOT...LOC 2115Z 236DEG 67KT 4356 9089 4345 9087 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Ferguson
070 
WWUS53 KARX 172120 RRB
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
420 PM CDT Fri Apr 17 2026

WIC123-172130-
/O.EXP.KARX.TO.W.0027.000000T0000Z-260417T2130Z/
Vernon WI-
420 PM CDT Fri Apr 17 2026

...THE TORNADO WARNING FOR CENTRAL VERNON COUNTY WILL EXPIRE AT 430
PM CDT...

The storms which prompted the warning have weakened below severe
limits, and no longer appear capable of producing a tornado.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 800 PM CDT for southwestern
Wisconsin.

&&

LAT...LON 4342 9091 4359 9098 4372 9078 4349 9069
TIME...MOT...LOC 2120Z 224DEG 40KT 4360 9084 4349 9082 

$$

Ferguson

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS La Crosse, WI wrote its last area forecast discussion before this tornado warning went out at Apr 17, 12:33 PM CDT, 3 hours 15 minutes earlier. Its key messages:

  • A complex severe weather forecast for this afternoon as possibly two waves of storms are in the offing, with the strength and timing of the first wave of storms playing into how the second wave of storms evolves.
  • Large hail up to 2-3" in diameter, damaging winds of 60 to 70 mph, a few tornadoes (some strong), and locally heavy rainfall are all on the table with these storms.
  • Much colder for the weekend with low temperatures falling below freezing starting tonight through Sunday night. Daytime highs over the weekend will be stuck in the 40s. Can't rule out some flurries on Saturday.
  • Dry conditions and warming temperatures expected for the start of next week.
Area forecast discussion, Apr 17, 12:33 PM CDT, 3 hours 15 minutes before
Area Forecast Discussion
National Weather Service La Crosse WI
1233 PM CDT Fri Apr 17 2026

.KEY MESSAGES...

- A complex severe weather forecast for this afternoon as
  possibly two waves of storms are in the offing, with the
  strength and timing of the first wave of storms playing into
  how the second wave of storms evolves.

- Large hail up to 2-3" in diameter, damaging winds of 60 to 70
  mph, a few tornadoes (some strong), and locally heavy
  rainfall are all on the table with these storms.

- Much colder for the weekend with low temperatures falling
  below freezing starting tonight through Sunday night. Daytime
  highs over the weekend will be stuck in the 40s. Can't rule
  out some flurries on Saturday.

- Dry conditions and warming temperatures expected for the start
  of next week.

&&

.UPDATE...
Issued at 1215 PM CDT Fri Apr 17 2026

Continuing to see rapid evolution of the environment over the
local area. Right now, the cold front is located near I35 in MN
tailing southwestward into IA. Surface low pressure is southwest
of Mason City at 17Z. To the east, widespread billow clouds
indicate a stable boundary layer over the much of southeast MN
and northeast IA. Closer to the front on I-35, the cumulus field
looks primed to initiate.

Warm Front: A confluence region exists approaching the Miss
river where some elevated echo is seen near Winona. SPC mesoa
deep moisture convergence is along this axis N-S and the latest
CAMS agree on more initiation over the next hour. That eastern
environment is elevated still with 2000-2500 J/Kg MUCAPE.
Development on this N-S axis is round 1 and as it heads east
with the dewpoint surging northward, these storms have
increasing chances at becoming surface-based in western WI.
However, this is moving east at a pretty good clip and depending
on the initiation of said storms, these might be surface-based
and mature into central and southwest WI or east of the local
area. The environment is rich, with effective helicity over 200
m2/s2 and 25-35 kts of 0-1km bulk shear now. If the low-level
winds remained backed, the CAMS suggest 300 eSRH and 200 0-500m
SRH in swrn WI by 2 pm. Supercells and strong tornadoes possible
with probabilities higher to I90 and south in WI for this area.

Cold Front: The cold front will also initiate on the western
edge of the warm sector and winds are all backed into the front
right now with the surface low traveling north, over sern MN
and nern IA, with loopy long hodographs there as well. The main
question remains of how fast the storms becomes a line there.
Initial discrete storms will work toward linear modes with 0-6
shear vectors and the 850-300 mb mean wind at 45 degrees to the
front. Strong linear forcing /cold front/ seems like it may go
linear than remain discrete. BUT, while discrete, the looping
hodographs mean tornado potential is certain there in sern MN
and western nern IA. First lightning strikes just seen along the
cold front near I-35 per GOES GLM.

Tornado Watch is forthcoming.

&&

.DISCUSSION...
Issued at 430 AM CDT Fri Apr 17 2026

Severe Weather Threat for this Afternoon

Even at the 11th hour, some critical details on the evolution
of our afternoon severe weather threat remain to be nailed down.
This is a situation where attention needs to be paid to the
weather throughout the afternoon as the threats unfold.

The early morning surface analysis across the Upper Midwest
shows our culprit cold front stretching from Sioux Falls, SD to
International Falls, MN and marching steadily to the ESE, aided
by an approaching seasonably strong upper tropospheric northern
stream trough and strong CAA pursuing over the Dakotas. A
994-mb surface low pressure cell over eastern Nebraska will
propagate quickly northeast along the front, lifting a warm
front with it through the region this morning. Strong surface
theta-e advection is being observed across western Iowa ahead of
this low with dewpoints reaching the low to mid 60s just ahead
of the front. This is a classic "nick of time" severe weather
scenario where the favorable thermodynamic severe weather
environment will arrive just ahead of storm initiation.

There are two windows of opportunity for storms to form later
this morning into the afternoon, one wave along the leading
warm frontal boundary and the second with the cold front coming
through a few hours later. Rapid destabilization is progged to
occur in the warm sector as the warm front lifts through the
region between 16-19Z with warm sector MLCAPE values of
2000-2500 J/kg and deep shear profiles of 30-50+ kts. Low level
hodographs along the warm front will feature very favorable
profiles in the 0-1 to 0-6-km layer supportive of strongly
rotating updrafts and tornadoes. This parameter space exists for
several hours in the warm sector in the wake of the warm front
until the cold front blasts through between 18-00Z today from
west to east.

The timing of the storms will be absolutely critical today to
determine how the exact severe hazards will unfold with several
different scenarios in play. The latest runs of the HRRR are
favoring elevated convection developing north of the triple
point and kickstarting convection down the warm front as it
lifts into the forecast area. However, the updraft strength in
these model runs has not been overly strong with this round of
convection at first, likely owing to the mean storm motions (for
storms developing along the front) outpacing the boundary and
resulting in the storms tracking into a much higher inhibition
airmass ahead of the front before deviant right moving storm
motions can be achieved. A few CAM solutions show more robust
updrafts able to slow down and stay within the more favorable
thermodynamic environment, so how the threat along this boundary
evolves may have to be assessed on a storm by storm basis in
real time.

Can't fully rule out more open warm sector convection lagging
the warm front given the dynamic environment in place, which
would result in storms posing an all hazards risk rather
quickly. This looks to be more of a lower confidence, but
potentially higher impact scenario.

Attention then turns to the cold front as it cruises to the ESE
through the forecast area this afternoon. Recent CAM runs are
hinting at a better risk for larger and more robust storms
further south along what would now be more of a prefrontal
trough versus a true warm front in Iowa. Should robust
convection develop within this corridor--the inflow for our cold
frontal storms--this may choke off development further north
along the cold front. How far north remains to be seen. A
linear upscale growth progression is expected along the front as
the afternoon goes on, with the line advancing out of the
region by 00Z. Both supercellular and QLCS tornadoes would be
possible along the line given the favorable respective shear
profiles for both setups.

Alot to happen in a short 6-7 hour window this afternoon and
only small changes to the timing of any one of these variables
could have a domino effect on the rest of the event.

This Weekend & Early Next Week: Drier & Cooler

As we head past today, cooler air works its way in within the
broader troughing regime on Saturday with highs likely
plummeting into the 40s to lower 50s for the weekend. Cannot
rule out some flurries or light snow showers north of I-94
during the morning hours on Saturday. Overnight lows on
Saturday night will likely fall below freezing for many spots so
be sure to cover any plants you have set out! However, no
accumulations would be expected. Otherwise, surface high
pressure moves into the region for Sunday keeping us relatively
precipitation free into early next week.

&&

.AVIATION /18Z TAFS THROUGH 18Z SATURDAY/...
Issued at 1220 PM CDT Fri Apr 17 2026

A rapidly moving cold front is currently located just to the
west of KRST as of 17/17Z. Visible Satellite and Radar Imagery
show convection starting to develop along the front. MVFR to IFR
Cu and stratus with gusty southerly flow up to 30 kt is being
observed just east of this activity. Thunderstorms and
convective showers will rapidly develop with TSRA chances with
IFR or lower ceilings for KRST through 19Z. These storms will
likely develop into a line with better chances for TSRA around
20Z for KLSE (+/- 1 hour). All modes of severe weather are
possible including large hail, damaging winds, and lightning.
General frontal turbulence is also likely. Winds will quickly
shift to the NW and remain gusty behind the front shortly after.
CIGs are likely to remain MVFR category are several hours and
gradually lifting to VFR conditions with high clouds towards the
latter end of the package.

&&

.HYDROLOGY...
Issued at 430 AM CDT Fri Apr 17 2026

A Flood Watch has been issued for Southwest Wisconsin and
portions of West Central Wisconsin given the chance for
additional showers and thunderstorms this afternoon and evening.
These areas have already seen copious amounts of rainfall over
the last week with many rivers experiencing signficiant flooding
(enough to close some roads in multiple counties). A
widespread 1/2 inch of rain is likely with localized pockets of
1-2 inches--any additional rain will be problematic and only
exacerbate existing problems. Mudslides also look to be a
problem as we haven't seen a full green up yet so roots have not
taken a strong hold yet. Rivers across Wisconsin are likely to
see additional rises, especially the Kickapoo, Yellow, Black,
and Wisconsin.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...Flood Watch through Saturday morning for WIZ042>044-053>055-
     061.
MN...None.
IA...None.

&&

UPDATE...Baumgardt
DISCUSSION...Naylor/Skow
AVIATION...NWS
HYDROLOGY...Barendse
Hazardous weather outlook, Apr 17, 3:36 AM CDT, 12 hours 12 minutes before
Hazardous Weather Outlook
National Weather Service La Crosse WI
336 AM CDT Fri Apr 17 2026

WIZ033-034-041>044-053>055-061-181245-
Trempealeau-Jackson-La Crosse-Monroe-Juneau-Adams-Vernon-Crawford-
Richland-Grant-
336 AM CDT Fri Apr 17 2026

This Hazardous Weather Outlook is for portions of central
Wisconsin...southwest Wisconsin and west central Wisconsin.

.DAY ONE...Today and Tonight

The threat for severe weather returns this afternoon as possibly
two lines of storms moves through the region. Large hail,
damaging winds, and tornadoes will all be possible with these
storms depending on how the event unfolds.

Flooding along rivers and low lying locations will continue
through at least the weekend.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter reports may be needed this afternoon.

.EMERGENCY MANAGEMENT COORDINATION...

A webinar has been scheduled for 1030 am this morning.

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-032-
181245-
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Taylor-Clark-Buffalo-
336 AM CDT Fri Apr 17 2026

This Hazardous Weather Outlook is for portions of north central
Iowa...northeast Iowa...southeast Minnesota...central Wisconsin...
north central Wisconsin and west central Wisconsin.

.DAY ONE...Today and Tonight

The threat for severe weather returns this afternoon as possibly
two lines of storms moves through the region. Large hail,
damaging winds, and tornadoes will all be possible with these
storms depending on how the event unfolds.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter reports may be needed this afternoon.

.EMERGENCY MANAGEMENT COORDINATION...

A webinar has been scheduled for 1030 am this morning.

KDS

In the hours before

Local storm report, Apr 17, 2:36 PM CDT, 1 hour 12 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
236 PM CDT Fri Apr 17 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0232 PM     Tornado          4 N Stewartville        43.91N 92.48W
04/17/2026                   Olmsted            MN   Public

            Rochester Tower reported tornado on the
            ground near Highway 63.

&&

JSB
Local storm report, Apr 17, 3:07 PM CDT, 41 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
307 PM CDT Fri Apr 17 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0305 PM     Hail             Altura                  44.07N 91.94W
04/17/2026  M1.00 Inch       Winona             MN   Emergency Mngr

&&
Local storm report, Apr 17, 3:22 PM CDT, 26 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
322 PM CDT Fri Apr 17 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0316 PM     Hail             Tomah                   43.99N 90.50W
04/17/2026  M1.00 Inch       Monroe             WI   Emergency Mngr

&&
Local storm report, Apr 17, 3:24 PM CDT, 24 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
324 PM CDT Fri Apr 17 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0319 PM     Hail             Rollingstone            44.10N 91.82W
04/17/2026  E1.00 Inch       Winona             MN   Emergency Mngr

            Emergency Manager reported quarter size hail
            in Rollingstone.

&&
Local storm report, Apr 17, 3:26 PM CDT, 22 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
326 PM CDT Fri Apr 17 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0315 PM     Hail             1 S Tomah               43.98N 90.50W
04/17/2026  E0.88 Inch       Monroe             WI   Amateur Radio

&&
Local storm report, Apr 17, 3:44 PM CDT, 4 minutes before
Preliminary Local Storm Report
National Weather Service La Crosse WI
344 PM CDT Fri Apr 17 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0245 PM     Hail             8 NW Thorp              45.03N 90.92W
04/17/2026  M1.00 Inch       Taylor             WI   Trained Spotter

&&

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 17, 2:05 PM CDTTornado WarningARXMitchell40 min
Apr 17, 2:15 PM CDTTornado WarningARXChickasaw, Floyd, Howard, Mitchell45 min
Apr 17, 2:44 PM CDTTornado WarningARXHoward31 min
Apr 17, 2:49 PM CDTTornado WarningARXChickasaw, Howard41 min
Apr 17, 3:46 PM CDTTornado WarningARXAllamakee, Clayton, Fayette, Winneshiek44 min
Apr 17, 4:24 PM CDTTornado WarningARXAllamakee, Clayton19 min
Apr 17, 1:21 PM CDTTornado WarningARXDodge, Mower24 min
Apr 17, 1:36 PM CDTSevere Thunderstorm WarningARXDodge8 min
Apr 17, 1:43 PM CDTSevere Thunderstorm WarningARXDodge, Olmsted47 min
Apr 17, 1:52 PM CDTTornado Warning Tornado observedARXDodge, Mower, Olmsted53 min
Apr 17, 2:32 PM CDTTornado Warning Tornado observedARXOlmsted, Wabasha43 min
Apr 17, 2:36 PM CDTTornado WarningARXFillmore24 min
Apr 17, 2:41 PM CDTTornado Warning Tornado observedARXOlmsted, Wabasha, Winona49 min
Apr 17, 3:07 PM CDTTornado WarningARXWabasha, Winona38 min
Apr 17, 3:09 PM CDTTornado WarningARXFillmore18 min
Apr 17, 11:06 AM CDTRiver Flood WarningARXCrawford22 hr
Apr 17, 1:23 PM CDTSpecial Weather StatementARXGrant37 min
Apr 17, 2:03 PM CDTSpecial Weather StatementARXGrant, Richland27 min
Apr 17, 2:36 PM CDTSevere Thunderstorm WarningARXClark, Taylor39 min
Apr 17, 2:41 PM CDTSevere Thunderstorm WarningARXRichland36 min
Apr 17, 2:45 PM CDTSevere Thunderstorm WarningARXClark, Jackson30 min
Apr 17, 2:50 PM CDTTornado WarningARXTaylor40 min
Apr 17, 2:57 PM CDTTornado WarningARXRichland18 min
Apr 17, 2:58 PM CDTTornado WarningARXClark, Jackson35 min
Apr 17, 3:10 PM CDTSevere Thunderstorm Warning Considerable damage threatARXAdams, Jackson, Juneau, Monroe50 min
Apr 17, 3:39 PM CDTTornado Warning Tornado observedConsiderable damage threatARXBuffalo, Trempealeau51 min
Apr 17, 3:41 PM CDTTornado WarningARXBuffalo, Trempealeau49 min
Apr 17, 4:05 PM CDTTornado WarningARXJackson, Trempealeau40 min
Apr 17, 4:07 PM CDTTornado WarningARXGrant38 min
Apr 17, 4:09 PM CDTTornado WarningARXJackson, Trempealeau51 min
Apr 17, 4:30 PM CDTTornado Warning Tornado observedARXClark27 min
Apr 17, 4:35 PM CDTTornado WarningARXClark, Jackson40 min
Apr 17, 4:54 PM CDTTornado WarningARXAdams, Juneau18 min
Apr 17, 4:58 PM CDTSpecial Weather StatementARXGrant32 min
Apr 17, 5:13 PM CDTTornado WarningARXClark33 min
Apr 17, 5:24 PM CDTSevere Thunderstorm WarningARXClark, Jackson51 min
Apr 17, 5:30 PM CDTSevere Thunderstorm WarningARXGrant28 min
Apr 17, 5:37 PM CDTSevere Thunderstorm WarningARXJackson, Monroe38 min

Nearby

Tornado Warnings in Wisconsin, 2026Tornado Warnings in Iowa, 2026Tornado Warnings in Minnesota, 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.