Severe Thunderstorm Warning 29, NWS La Crosse, WI

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WWUS53 KARX 142123
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Severe Weather Statement
National Weather Service La Crosse WI
423 PM CDT Tue Apr 14 2026

IAC037-067-142200-
/O.CON.KARX.SV.W.0029.000000T0000Z-260414T2200Z/
Floyd IA-Chickasaw IA-
423 PM CDT Tue Apr 14 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR EASTERN FLOYD AND NORTHWESTERN CHICKASAW COUNTIES...

At 422 PM CDT, a severe thunderstorm was located near Nashua, or near
Charles City, moving northeast at 40 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe storm will be near...
  Charles City around 430 PM CDT.
  Ionia around 435 PM CDT.

Other locations impacted by this severe thunderstorm include County
Roads B 33 And T 76, Idlewilde State Park, Howards Wood Recreational
Area, Roseville, Chickasaw, Howardville, and Oakwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for north central
and northeastern Iowa.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4291 9274 4294 9290 4321 9276 4315 9230
      4291 9258
TIME...MOT...LOC 2122Z 229DEG 34KT 4297 9266 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cecava

821 
WWUS53 KARX 142125 CCA
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Severe Weather Statement
National Weather Service La Crosse WI
425 PM CDT Tue Apr 14 2026

IAC037-067-142200-
/O.COR.KARX.SV.W.0029.000000T0000Z-260414T2200Z/
Floyd IA-Chickasaw IA-
425 PM CDT Tue Apr 14 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR EASTERN FLOYD AND NORTHWESTERN CHICKASAW COUNTIES...

At 425 PM CDT, a severe thunderstorm was located near Nashua, or near
Charles City, moving northeast at 35 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

This severe storm will be near...
  Ionia around 435 PM CDT.

Other locations impacted by this severe thunderstorm include County
Roads B 33 And T 76, Idlewilde State Park, Howards Wood Recreational
Area, Roseville, Chickasaw, Howardville, and Oakwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for north central
and northeastern Iowa.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4291 9274 4294 9290 4321 9276 4315 9230
      4291 9258
TIME...MOT...LOC 2123Z 229DEG 32KT 4297 9266 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cecava

833 
WWUS53 KARX 142135 RRA
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Severe Weather Statement
National Weather Service La Crosse WI
435 PM CDT Tue Apr 14 2026

IAC037-067-142200-
/O.CON.KARX.SV.W.0029.000000T0000Z-260414T2200Z/
Floyd IA-Chickasaw IA-
435 PM CDT Tue Apr 14 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR EASTERN FLOYD AND NORTHWESTERN CHICKASAW COUNTIES...

At 433 PM CDT, a severe thunderstorm was located near Ionia, or near
Charles City, moving northeast at 35 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...At 430 PM Law enforcement reported golf ball size hail just 
         south of Charles City.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

This severe storm will be near...
  Ionia around 440 PM CDT.

Other locations impacted by this severe thunderstorm include County
Roads B 33 And T 76, Idlewilde State Park, Howards Wood Recreational
Area, Roseville, Chickasaw, Howardville, and Oakwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for north central
and northeastern Iowa.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4291 9274 4294 9290 4321 9276 4315 9230
      4291 9258
TIME...MOT...LOC 2133Z 227DEG 32KT 4304 9256 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cecava

064 
WWUS53 KARX 142139 CCA
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
439 PM CDT Tue Apr 14 2026

IAC037-067-142200-
/O.COR.KARX.SV.W.0029.000000T0000Z-260414T2200Z/
Floyd IA-Chickasaw IA-
439 PM CDT Tue Apr 14 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR EASTERN FLOYD AND NORTHWESTERN CHICKASAW COUNTIES...

At 438 PM CDT, a severe thunderstorm was located near Ionia, or near
Charles City, moving northeast at 35 mph.

THIS IS A DESTRUCTIVE STORM FOR EASTERN FLOYD AND WESTERN CHICKASAW.

HAZARD...At 436 PM, Law Enforcement reported baseball size hail near 
         Charles City.

SOURCE...Emergency management.

IMPACT...People and animals outdoors will be severely injured. 
         Expect shattered windows, extensive damage to roofs, 
         siding, and vehicles.

This severe thunderstorm will remain over mainly rural areas of
eastern Floyd and northwestern Chickasaw Counties, including the
following locations... County Roads B 33 And T 76, Idlewilde State
Park, Howards Wood Recreational Area, Roseville, Chickasaw,
Howardville, and Oakwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for north central
and northeastern Iowa.

This is a dangerous storm. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.

&&

LAT...LON 4291 9274 4294 9290 4321 9276 4315 9230
      4291 9258
TIME...MOT...LOC 2135Z 223DEG 30KT 4304 9256 

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cecava

382 
WWUS53 KARX 142148
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Severe Weather Statement
National Weather Service La Crosse WI
448 PM CDT Tue Apr 14 2026

IAC067-142157-
/O.CAN.KARX.SV.W.0029.000000T0000Z-260414T2200Z/
Floyd IA-
448 PM CDT Tue Apr 14 2026

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN FLOYD COUNTY IS
CANCELLED...

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

A Tornado Watch remains in effect until 1000 PM CDT for north central
and northeastern Iowa.

&&

LAT...LON 4318 9256 4315 9230 4293 9255
TIME...MOT...LOC 2147Z 219DEG 29KT 4313 9247 

$$

IAC037-142200-
/O.CON.KARX.SV.W.0029.000000T0000Z-260414T2200Z/
Chickasaw IA-
448 PM CDT Tue Apr 14 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR NORTHWESTERN CHICKASAW COUNTY...

At 447 PM CDT, a severe thunderstorm was located near Ionia, or 9
miles northwest of New Hampton, moving northeast at 35 mph.

HAZARD...Tennis ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of
northwestern Chickasaw County, including the following locations...
Highway 18 And County V 18, County Roads B 33 And T 76, River Ranch
Campground, Bradford, Chickasaw, Devon, and Deerfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for north central
and northeastern Iowa.

This is a dangerous storm. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.

&&

LAT...LON 4318 9256 4315 9230 4293 9255
TIME...MOT...LOC 2147Z 219DEG 29KT 4313 9247 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cecava

Area Forecast Discussion
National Weather Service La Crosse WI
1255 PM CDT Tue Apr 14 2026

.KEY MESSAGES...

- Strong to severe storms possible today, primarily for the
  southeastern half of the forecast area with large hail,
  damaging winds, a few tornadoes as the primary threats. Heavy
  rainfall leading to flash flooding remains a secondary threat
  with overall fast storm motions expected.

- Storm chances continue through Tuesday night and Wednesday,
  eventually ceasing temporarily through Thursday. Additional
  strong to severe storm chances return Friday
  afternoon/evening/night.

&&

.DISCUSSION...
Issued at 1254 PM CDT Tue Apr 14 2026

Severe Storms Today

If you didn't get a slice of the action yesterday, have no fear
because we're in for another round of potentially higher end severe
weather again today. The main locations under the gun today will be
Northeastern Iowa into SW/Central Wisconsin. An outflow boundary
from last night/this mornings convection is expected to lift north
as an effective warm front. Current guidance is in good consensus
that this will stall out across NE Iowa into Central Wisconsin by
mid-afternoon. Satellite imagery is already showing this boundary
clearly across Central Iowa where skies have cleared early this
afternoon. Convective inhibition will erode through the coming
hours with daytime heating and ascent ahead of a shortwave
upper trough ejecting into the Upper Midwest will support
initiation by mid-afternoon. The airmass will be plenty
unstable with 2000-3000 J/kg of MLCAPE present on area soundings
once the cap finally erodes. Supercells are expected to go up
quickly with steep mid level lapse rates and abundant effective
bulk shear across the region (30-50+ kts). All hazards will be
in play with these storms but the main threats look to be large
to very large hail and a few tornadoes (potentially strong). The
parameter space is thermodynamically supportive of large hail.
Hodographs show a fairly straight, elongated hodograph with a
little bit of low level curvature. Think the best threat for
tornadoes will be along and near the boundary where low level
helicity can be maximized. The supercells are expected to move
quickly off to the east and grow upscale into a more linear
feature where damaging winds will take over as the primary
threat. Luckily, hydro concerns remain limited as storms are
expected to form in areas that didn't see significant rainfall
from yesterday's batch of storms. These storms should also be
moving at a good clip which will limit the impacts of heavy
rainfall in a given area. The environment is certainly favorable
for some significant storms this afternoon and early evening
with the Day 1 Enhanced Risk in place with significant hail and
tornado probabilities in place across southwestern Wisconsin and
northeastern Iowa.

Severe Storm Potential Wednesday

The severe threat for Wednesday will hinge a lot upon how much
the airmass can recover from this afternoon/evening's storms.
The airmass will remain persistently warm and moist as yet
another surface low will move into Iowa, likely putting
southeastern portions of our area in the warm sector - again.
Ongoing showers and storms may inhibit how much we can
destabilize by the afternoon. If we can destabilize and get
enough diurnal heating, the environment would be supportive of
strong to severe storms with around 1000 J/kg of CAPE. Shear
profiles this far north don't look particularly impressive but
low level helicity near the warm front may be enough to support
a low tornado risk. Again, this will depend heavily on lingering
convection tonight and into tomorrow morning with hopefully
better consensus among models with the 00Z and 06Z suites.

Storms Ramp Back Up Friday

After a brief lull in activity for Thursday, we ramp back up into
severe chances for Friday. A deep trough is expected to take shape
over the Rockies late in the week. As this slides east,
southwesterly flow is expected to increase across the area. At the
surface, a bit of a complicated pattern is set to take shape with
two semi-weak surface lows, one over the Northern Plains and
another over the Central Plains. Out ahead of these lows, a
broad warm sector will develop across much of the Mississippi
River Valley. With increasing ascent from the upper trough and
surface lift from a cold front that moves east, a line of
storms is expected to develop sometime Friday west of our area.
Steep mid level lapse rates and a strengthening low/mid level
jet at 40-60 kts will support initial supercell development
before storms form into a QLCS. Thermodynamic profiles show a
broad area of 2000-3000 J/kg across our area with slightly
curved and elongated hodographs. With all of this coming
together, SPC has put our area in a Day 4 Slight Risk with an
Enhanced Risk just off to our south and west, where shear and
overall forcing looks a bit more robust.

Snow Showers This Weekend?

As the aforementioned surface low(s) move off to the north and east
into Ontario by 12Z Saturday, the long draping cold front will have
finally made its way through the area. With the low strengthening
slightly, the pressure gradient will remain tight enough to allow
strong cold air advection into the area early Saturday. While
high temperatures Friday will be in the 70s areawide, highs by
Saturday will have fallen 20-30 degrees into the low 40s to mid
50s. Model guidance is even indicating some the precipitation on
the back side of the low could be a rain/snow mix or just all
light snow. Which is a wild thing to think about after a week of
70+ degree temperatures but such is life in the midwest during
spring. Any snow should not be impactful with no accumulations
expected given that ground temperatures should support melting
on contact.

&&

.AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/...
Issued at 1228 PM CDT Tue Apr 14 2026

IFR and MVFR ceilings will become VFR by mid-afternoon.

Scattered storms will develop along and south of the Interstate
90 by mid-afternoon and then move south by late afternoon. Some
of these storms could be strong to severe.

Dense fog will develop tonight and continue into the mid-morning
of Wednesday.

&&

.HYDROLOGY...
Issued at 1254 PM CDT Tue Apr 14 2026

Widespread hydrologic concerns are not expected with this
afternoon and evenings activity given the fast expected storm
motion and overall impacted location being south of where the
heaviest rain for yesterday's event has fallen. Given that SW
Wisconsin is under threat, the main basin of concern would be
the Kickapoo as it's notoriously flashy and could see rises into
Action/Minor with this activity.

Flood watches and warnings continue for locations along the
Black and Trempealeau Rivers primarily with other locations
impacted including the Yellow River at Necedah and various spots
along the Wisconsin River. The larger basins seem more at risk
as we move through the rest of the week with continued chances
for rain today, tomorrow, and Friday. None of these events look
to provide particularly heavy rain but the repeated activity
will likely cause river rises along area basins. Flash flooding
is not of great concern either but rain rates with the strongest
thunderstorms may support local ponding.

&&

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

&&

DISCUSSION...Barendse
AVIATION...Boyne
HYDROLOGY...Barendse

Hazardous Weather Outlook
National Weather Service La Crosse WI
129 PM CDT Tue Apr 14 2026

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-152230-
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-
129 PM CDT Tue Apr 14 2026

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

.DAY ONE...This Afternoon and Tonight

Severe thunderstorms are likely this afternoon across northeastern
Iowa and southern Wisconsin with a lesser storm risk further to
the northwest. All storms will be capable of large hail of 2
inches or greater in diameter, damaging winds, and a few
tornadoes. Locally heavy rainfall will be more of a secondary
threat as storms will be moving fairly quickly and shouldn't
linger over any one area for too long.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

The threat for severe weather lingers for Wednesday afternoon and
possibly Friday evening. Uncertainty remains with tomorrow's
activity as ongoing showers/storms tomorrow morning may limit how
strong storms across our area can get. Details on severe weather
for Friday will be refined in the coming days.

.SPOTTER INFORMATION STATEMENT...

Spotter reports may be needed this afternoon and again Wednesday
afternoon.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.