Tornado Warning 42, NWS La Crosse, WI

990 
WWUS53 KARX 060143
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
843 PM CDT Fri Jun 5 2026

WIC081-060200-
/O.CON.KARX.TO.W.0042.000000T0000Z-260606T0200Z/
Monroe WI-
843 PM CDT Fri Jun 5 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR EAST
CENTRAL MONROE COUNTY...

At 842 PM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles southeast of Tomah, moving east 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.

Locations impacted include...
Clifton.

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 4383 9045 4393 9043 4392 9031 4379 9031
TIME...MOT...LOC 0142Z 280DEG 34KT 4388 9038 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Ferguson

753 
WWUS53 KARX 060154
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
854 PM CDT Fri Jun 5 2026

WIC081-060204-
/O.EXP.KARX.TO.W.0042.000000T0000Z-260606T0200Z/
Monroe WI-
854 PM CDT Fri Jun 5 2026

...THE TORNADO WARNING FOR EAST CENTRAL MONROE COUNTY WILL EXPIRE AT
900 PM CDT...

The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
west central Wisconsin.

&&

LAT...LON 4383 9045 4393 9043 4392 9031 4379 9031
TIME...MOT...LOC 0154Z 280DEG 34KT 4386 9024 

$$

Ferguson

Area Forecast Discussion
National Weather Service La Crosse WI
626 PM CDT Fri Jun 5 2026

.KEY MESSAGES...

- Isolated to scattered storms late this afternoon thru early
  overnight. Confidence has increased for severe storms later
  this evening near and north of I-90. Large hail and strong
  wind gusts would be the main hazards with any severe storms.

- Dry start to the weekend gives away to another round of rain
  on Sunday through Monday.

- Trending hot for the middle and end of next week with highs
  likely in the 90s and heat indices approaching the 100 degree
  mark.

&&

.DISCUSSION...
Issued at 131 PM CDT Fri Jun 5 2026

This Afternoon - Early Overnight: Isolated to Scattered Storms,
Some Strong to Severe

A continued difficult forecast remains for this afternoon and into
the evening hours for storm initiation. As has been stated in
previous forecast discussions, the environment trends more favorable
for organized convection later into the evening today, the key
question is will there be enough lift to generate convective
initiation as forcing mechanisms remain uncertain. But to take
a step back, current satellite trends this morning have depicted
a low-level cloud shield over the region which is generally
expected to mix out to some extent this afternoon. As this
occurs, surface destabilization will result in an increase in
MLCAPE values to around 1000-1500 J/kg across the local area.
With some degree of inconsistency where destabilization occurs,
this will likely set up some differential heating boundaries
during the afternoon which in turn may work as an axis to
initiate convection. As a result, the CAMs generally agree on
developing storms in the area later this afternoon and in the
evening, with low confidence on exact location but the earliest
timing likely being between 2-4pm. In this environment, storms
may pose some hail and strong wind risk, however the weaker
shear profiles initially would not make this a widespread
concern. However, how convection evolves earlier in the
afternoon will certainly impact how later storms may develop as
they could work to both increase the amount of available outflow
boundaries as well as work over the environment if convective
initiation is more widespread.

This will be important for later into the evening as a shortwave
trough pushes into the area, working to cool our mid-levels
slightly and increasing mid-level shear while elongating our
hodographs. As a result, any storms that do develop in this
environment (generally 6pm to 3am) would have a tendency to
become more organized, possibly supercellular as shown in the
HRRR. In this scenario, a hail threat would be on the table with
supercell storms and 40-50 kts of 0-6km bulk shear to work with
near and north of I-90 and mid-level lapse rates to around 6.5
C/km. Furthermore, with DCAPE values increasing during the late
evening with some dry air entrainment would suggest some strong
winds within these cells would be possible in addition to cold
pool organization resulting in linear/bowing segments.

So important to emphasize that there are a few scenarios here, much
of the CAMs agree on some level of convection during the afternoon
and evening in the local area but the severe threat is conditional
on if storms can develop during the late evening period when shear
profiles begin to become more favorable. However, it is becoming
more likely that if storms do occur in the evening hours for areas
north of I-90 where the shear profiles are more robust, they will
become severe. As a result, SPC has upgraded these areas to a Slight
Risk (Level 2 out of 5) for severe weather.

Saturday - Monday: Dry Start to Weekend with Increasing Rain Chances

As we head into Saturday, upper-level ridging will move into the
area with subsidence underneath it keeping precipitation chances to
a minimum. Additionally, with relatively clear skies underneath the
ridge would expect temperatures to climb into the middle and
upper 80s during this period. However, as we head later into
Sunday and into Monday rain chances will begin to increase as a
pronounced mid-level shortwave moves into the region in the
southwesterly flow regime. As a result, precipitation chances
increase fairly significantly during this period with the grand
ensemble having fairly respectable probabilities (40-60%) for
rainfall amounts of 0.5" into Monday. With fairly high dewpoints
and moisture coming in, cannot rule out some heavier rainfall
during this period as well. However, given the lack of strong
flow aloft with this wave, organized severe convection seems
unlikely with this system.

Tuesday - Saturday: Trending Hotter

As we head late into the week, an upper-level ridge will become
situated over the local area resulting in southerly low-level flow
across the local area. As this occurs, moisture advection will
result in dewpoints increase fairly dramatically across the local
area with the grand ensemble (GEFS/EC/Canadian ensemble) having high
probabilities (70-90%) for dewpoints in the 70s. This coupled
with highs approaching the 90s would suggest that we could see
heat indices approaching the 100F mark. Some conflicting
guidance between the bias-correction in the NBM and the raw
models leads to some uncertainty in exactly how warm we will
get. But given the EC Extreme Forecast Index has a fairly strong
probability footprint (70-90%) for temperatures to exceed model
climatology, thinking temperatures will be fairly above normal,
just a matter of how much above normal and if any finer details
such as precipitation potential would keep us cooler.

&&

.AVIATION /00Z TAFS THROUGH 00Z SUNDAY/...
Issued at 626 PM CDT Fri Jun 5 2026

Main taf concern is the potential for thunder at both taf sites
early in the taf period. Weak cold front slowly moves over the
area this evening and has been the focus for showers and
isolated storms over western Wisconsin/central Minnesota this
evening. Instability is not great over the area this evening and
weakens after 03z Saturday. Coverage of storms is expected to be
isolated across the area. For now...have introduced showers into
the taf sites between 02-04z Saturday and a tempo group for an
isolated storm at both RST/LSE taf sites. After showers pass the
taf sites...the next concern is potential for fog formation
across the region. With residual cloud cover from the showers
not sure if area will clear out. However...low level moisture
and weak inversion could develop fog over the area after 06z
Saturday. At this time will leave mention out of tafs based on
confidence is low. After 14z Saturday...VFR conditions should
prevail at both RST/LSE taf sites.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...None.
IA...None.

&&

DISCUSSION...Naylor
AVIATION...DTJ

Hazardous Weather Outlook
National Weather Service La Crosse WI
134 PM CDT Fri Jun 5 2026

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-062245-
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau-
Adams-Vernon-Crawford-Richland-Grant-
134 PM CDT Fri Jun 5 2026

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

.DAY ONE...This Afternoon and Tonight

Storms develop this afternoon with some potentially becoming
severe this evening into the early overnight. The greatest risk
for any severe storms this evening is near and north of Interstate
90. Large hail and damaging wind gusts would be the main hazards
with any storms.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Confidence is high for above average temperatures mid to late next
week with afternoon heat indices likely exceeding 100 degrees.

.SPOTTER INFORMATION STATEMENT...

Severe weather reports would be appreciated.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

Naylor

Preliminary Local Storm Report
National Weather Service La Crosse WI
750 PM CDT Fri Jun 5 2026

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

0708 PM     Tstm Wnd Gst     2 N Waumandee           44.33N 91.71W
06/05/2026  M60 MPH          Buffalo            WI   Public

            Also nickel size hail.

&&

Special Weather Statement
National Weather Service La Crosse WI
758 PM CDT Fri Jun 5 2026

WIZ034-041-042-060130-
Jackson WI-La Crosse WI-Monroe WI-
758 PM CDT Fri Jun 5 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN LA CROSSE...
SOUTHWESTERN JACKSON AND NORTHWESTERN MONROE COUNTIES THROUGH 830 PM
CDT...

At 758 PM CDT, Doppler radar was tracking a strong thunderstorm near
West Salem, or 11 miles west of Sparta, moving southeast at 30 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

This strong thunderstorm will be near...
  Bangor around 805 PM CDT.
  Sparta around 815 PM CDT.

Other locations impacted by this storm include Melrose, County Roads
I And I I, Stevenstown, Highway 162 And County T, Burr Oak, Highway
162 And County E E, Rockland, County Roads D E And E, Highway 33 And
County Y, and Mindoro Cut.

This includes Interstate 90 in Wisconsin between mile markers 14 and
30.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
west central Wisconsin.

&&

LAT...LON 4403 9122 4418 9101 4403 9064 4379 9090
TIME...MOT...LOC 0058Z 304DEG 27KT 4397 9104

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Ferguson

Special Weather Statement
National Weather Service La Crosse WI
802 PM CDT Fri Jun 5 2026

MNZ079-WIZ032-060130-
Wabasha MN-Buffalo WI-
802 PM CDT Fri Jun 5 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN WABASHA AND WEST
CENTRAL BUFFALO COUNTIES THROUGH 830 PM CDT...

At 802 PM CDT, Doppler radar was tracking a strong thunderstorm over
Stockholm, or 13 miles northwest of Wabasha, moving east at 35 mph.

HAZARD...Wind gusts up to 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

This strong thunderstorm will be near...
  Wabasha around 815 PM CDT.

Other locations impacted by this storm include Nelson, Dumfries,
Zumbro Bottoms Campground, Maple Springs, Gilbert Valley, Kruger
Campground, Highway 63 And County 2, and County Roads 33 And 4.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
southeastern Minnesota...and west central Wisconsin.

&&

LAT...LON 4445 9224 4444 9221 4442 9212 4441 9211
      4441 9208 4449 9205 4446 9191 4426 9213
      4444 9243 4445 9243
TIME...MOT...LOC 0102Z 289DEG 30KT 4445 9230

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

Ferguson

Preliminary Local Storm Report
National Weather Service La Crosse WI
811 PM CDT Fri Jun 5 2026

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

0733 PM     Hail             6 NE Millston           44.24N 90.54W
06/05/2026  E1.00 Inch       Jackson            WI   Public

            Report from mPING: Quarter (1.00 in.).

&&

Preliminary Local Storm Report
National Weather Service La Crosse WI
815 PM CDT Fri Jun 5 2026

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

0814 PM     Hail             1 NW Winona             44.06N 91.67W
06/05/2026  M1.50 Inch       Winona             MN   Emergency Mngr

            Emergency management reported ping pong ball
            sized hail.

&&

Special Weather Statement
National Weather Service La Crosse WI
817 PM CDT Fri Jun 5 2026

WIZ042-060145-
Monroe WI-
817 PM CDT Fri Jun 5 2026

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL MONROE COUNTY THROUGH
845 PM CDT...

At 817 PM CDT, Doppler radar was tracking a strong thunderstorm near
Sparta, moving southeast at 35 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

This storm will remain over mainly rural areas of central Monroe
County, including the following locations... Oil City, St Marys,
Norwalk, Jackson Pass, Wilton, Tunnel City, Farmers Valley, Highway
131 And County A, Ridgeville, and Tunnel Trail Campground.

This includes Interstate 90 in Wisconsin between mile markers 24 and
43.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
west central Wisconsin.

&&

LAT...LON 4392 9033 4372 9057 4373 9061 4394 9089
      4407 9073
TIME...MOT...LOC 0117Z 308DEG 31KT 4396 9073

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

Ferguson