Severe Thunderstorm Warning 89, NWS La Crosse, WI

214 
WWUS53 KARX 190835
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
335 AM CDT Sat Jul 19 2025

IAC067-131-190930-
/O.CON.KARX.SV.W.0089.000000T0000Z-250719T0930Z/
Mitchell IA-Floyd IA-
335 AM CDT Sat Jul 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CDT
FOR MITCHELL AND FLOYD COUNTIES...

At 334 AM CDT, severe thunderstorms were located along a line
extending from near Lyle to Nora Springs to 7 miles south of Mason
City Municipal Airport, moving southeast at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Nora Springs, St. Ansgar, and Rudd around 340 AM CDT.
  Osage, Rockford, and Stacyville around 345 AM CDT.

Other locations in the path of these severe thunderstorms include
Charles City, Floyd, Marble Rock, Riceville and Nashua.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4350 9303 4350 9255 4291 9255 4291 9302
TIME...MOT...LOC 0834Z 298DEG 33KT 4345 9297 4317 9303 4306 9330 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JSB

694 
WWUS53 KARX 190841
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
341 AM CDT Sat Jul 19 2025

IAC067-131-190930-
/O.CON.KARX.SV.W.0089.000000T0000Z-250719T0930Z/
Mitchell IA-Floyd IA-
341 AM CDT Sat Jul 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CDT
FOR MITCHELL AND FLOYD COUNTIES...

At 340 AM CDT, severe thunderstorms were located along a line
extending from near Lyle to near Nora Springs to near Rockwell,
moving southeast at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Osage, St. Ansgar, Rockford, Stacyville, and Rudd around 345 AM 
  CDT.
  Floyd around 355 AM CDT.

Other locations in the path of these severe thunderstorms include
Charles City, Marble Rock, Riceville and Nashua.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4350 9303 4350 9255 4291 9255 4291 9302
TIME...MOT...LOC 0840Z 297DEG 33KT 4346 9291 4315 9298 4304 9325 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JSB

346 
WWUS53 KARX 190854
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
354 AM CDT Sat Jul 19 2025

IAC067-131-190930-
/O.CON.KARX.SV.W.0089.000000T0000Z-250719T0930Z/
Mitchell IA-Floyd IA-
354 AM CDT Sat Jul 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CDT
FOR MITCHELL AND FLOYD COUNTIES...

At 348 AM CDT, severe thunderstorms were located along a line
extending from Stacyville to Osage to Rudd to near Rockwell, moving
southeast at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Charles City, Rockford, Floyd, and Marble Rock around 355 AM CDT.
  Riceville around 400 AM CDT.

Other locations in the path of these severe thunderstorms include
Nashua.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4350 9303 4350 9255 4291 9255 4291 9302
      4326 9303
TIME...MOT...LOC 0848Z 299DEG 37KT 4346 9279 4327 9278 4311 9290 4301
9316

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JSB

349 
WWUS53 KARX 190854 RRA
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
354 AM CDT Sat Jul 19 2025

IAC067-131-190930-
/O.CON.KARX.SV.W.0089.000000T0000Z-250719T0930Z/
Mitchell IA-Floyd IA-
354 AM CDT Sat Jul 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CDT
FOR MITCHELL AND FLOYD COUNTIES...

At 353 AM CDT, severe thunderstorms were located along a line
extending from near Stacyville to 7 miles southwest of Riceville to 
near Osage, Rudd, and Rockford, moving southeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Charles City, Riceville, Floyd, and Marble Rock around 400 AM CDT.

Other locations in the path of these severe thunderstorms include
Nashua.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4350 9288 4350 9255 4291 9255 4291 9302
      4320 9303 4331 9296
TIME...MOT...LOC 0853Z 307DEG 32KT 4349 9276 4331 9269 4324 9279 4308
9284 4302 9301

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JSB

035 
WWUS53 KARX 190901
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
401 AM CDT Sat Jul 19 2025

IAC067-131-190930-
/O.CON.KARX.SV.W.0089.000000T0000Z-250719T0930Z/
Mitchell IA-Floyd IA-
401 AM CDT Sat Jul 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CDT
FOR MITCHELL AND FLOYD COUNTIES...

At 400 AM CDT, severe thunderstorms were located along a line
extending from near Stacyville to 7 miles southwest of Riceville to 
near Floyd, Charles City, and Marble Rock, moving southeast at 
35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Charles City, Riceville, Floyd, and Marble Rock around 405 AM CDT.

Other locations in the path of these severe thunderstorms include
Nashua.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4350 9288 4350 9255 4291 9255 4291 9302
      4320 9303 4323 9286
TIME...MOT...LOC 0900Z 307DEG 32KT 4345 9269 4327 9262 4320 9273 4304
9278 4298 9295

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JSB

839 
WWUS53 KARX 190908
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
408 AM CDT Sat Jul 19 2025

IAC067-131-190930-
/O.CON.KARX.SV.W.0089.000000T0000Z-250719T0930Z/
Mitchell IA-Floyd IA-
408 AM CDT Sat Jul 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CDT
FOR EASTERN MITCHELL AND FLOYD COUNTIES...

At 407 AM CDT, severe thunderstorms were located along a line 
extending from 6 miles northeast of Stacyville to near Elma, Floyd, 
Charles City, and Marble Rock, moving southeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Charles City, Riceville, and Marble Rock around 410 AM CDT.
  Nashua around 415 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4349 9283 4350 9255 4291 9255 4291 9302
      4317 9300 4322 9274
TIME...MOT...LOC 0907Z 307DEG 32KT 4348 9268 4324 9256 4316 9266 4301
9271 4297 9292

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JSB

775 
WWUS53 KARX 190915
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
415 AM CDT Sat Jul 19 2025

IAC067-131-190930-
/O.CON.KARX.SV.W.0089.000000T0000Z-250719T0930Z/
Mitchell IA-Floyd IA-
415 AM CDT Sat Jul 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CDT
FOR EASTERN MITCHELL AND FLOYD COUNTIES...

At 414 AM CDT, severe thunderstorms were located along a line 
extending from 6 miles northwest of Riceville to near Elma, Charles 
City, Nashua, and Marble Rock, moving southeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Nashua and Riceville around 420 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4349 9283 4350 9255 4291 9255 4291 9296
      4313 9282 4322 9269
TIME...MOT...LOC 0914Z 307DEG 32KT 4344 9261 4320 9249 4313 9259 4297
9265 4293 9286

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JSB

379 
WWUS53 KARX 190920
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
420 AM CDT Sat Jul 19 2025

IAC067-131-190929-
/O.CAN.KARX.SV.W.0089.000000T0000Z-250719T0930Z/
Mitchell IA-Floyd IA-
420 AM CDT Sat Jul 19 2025

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MITCHELL AND FLOYD
COUNTIES IS CANCELLED...

The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.

&&

LAT...LON 4349 9283 4350 9255 4291 9255 4291 9296
      4313 9282 4322 9269
TIME...MOT...LOC 0917Z 298DEG 33KT 4342 9257 4318 9245 4311 9255 4295
9261 4291 9282

$$

JSB

Area Forecast Discussion
National Weather Service La Crosse WI
220 AM CDT Sat Jul 19 2025

.KEY MESSAGES...

- Thunderstorms bringing heavy rain and gusty winds this
  morning predominately west of US63.

- More progressive pattern favored into next week, with
  multiple chances of precipitation.

- Trending warmer by middle of next week, with persistent
  ridging across the central CONUS.

&&

.DISCUSSION...
Issued at 218 AM CDT Sat Jul 19 2025

This morning into Today: Thunderstorms this morning, another chance
this afternoon across southern Wisconsin.

As was suspected yesterday, the lack of better synoptic forcing has
the ongoing thunderstorms across central and southern MN struggling.
Short-term trends have had additional showers developing ahead and
east of these storms with the LLJ feeding additional moisture into
the area. The last few HRRR runs have waffled back and forth a bit
on the eastward extent of thunderstorms, with the latest run not
bringing much storms east of I35. Recent radar trends would agree
with these storms already reaching I90 and remaining west of I35 as
the storms progress south into the better instability. It would seem
that if storms don't begin to fire across SE MN in the next hour or
two, the chances drop off significantly as ongoing storms drop south
through the LLJ.

I'm trending the PoPs this morning closer to an ARW/HRRR solution as
it has handled the ongoing convection the best among CAM members.
This would bring the ongoing convection across sern MN into NE Iowa.
As day begins to break, these models want to bring convection closer
towards the Mississippi River, potentially into Grant County.
Meanwhile, ongoing showers are expected to continue to move through
central Wisconsin along the WI29 corridor as there is better
synoptic forcing northward through the overnight period. Latest
models aren't as keen on afternoon convection across parts of
southern WI later today, but have kept a few slight chances (20%)
along and south of the Wisconsin River as a frontal boundary drops
south through the area.

Sunday: Low Rain Chances (20%) South

The frontal boundary moving through today stalls across IA with our
area on the cooler side of this stagnant boundary. Meanwhile, a
developing ridge begins to take hold across the central CONUS. This
will bring a chance (15 to 30%) of showers and thunderstorms south
of I90 towards this stationary frontal boundary. Dewpoints along and
south of I90 will be in the mid 60s, with upper 50s to 60 along and
north of I94 across central and northern Wisconsin.

Next Week: Becoming Active with Increasing Temps through the Week

An amplifying ridge across the central CONUS takes hold on Monday as
troughing develops across the Pacific NW. A series of waves are
progged to eject from this Pacific NW trough and ride along the
ridge axis across the Upper Midwest through the middle of next week,
bringing multiple chances of precipitation across the area. Global
ensembles have gotten closer in line with each other, with minimal
differences in 500mb heights through at least Wednesday this week.
This places the Upper Midwest within an enhanced precipitation track
through the middle of week before ensembles suggest this ridge axis
retrogrades westward towards the Rockies. While medium range
ensemble members are all in agreement for the overall pattern
evolution, the finer details of just how warm and where the best
precipitation chances set up should begin to come into better
picture over the next couple of days.

&&

.AVIATION /06Z TAFS THROUGH 06Z SUNDAY/...
Issued at 1226 AM CDT Sat Jul 19 2025

As an area of thunderstorms move in from the west this morning,
ceilings will fall through MVFR, potentially into IFR, by
daybreak with abundant low-level moisture building beneath a
low-level inversion. Thunderstorms are most likely along and
west of the Mississippi and then north of I94 across central
Wisconsin. Where thunderstorms move though, expect periods of
IFR vis and cigs. Lingering low-level moisture this morning will
lead a period of low ceilings of high-end IFR to low-end MVFR
until daytime mixing brings a return to VFR around 18Z or so.
Look for southerly winds overnight to become northerly through
the day as a frontal boundary pushes through the area.

&&

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

&&

DISCUSSION...JAW
AVIATION...JAW

Hazardous Weather Outlook
National Weather Service La Crosse WI
235 AM CDT Sat Jul 19 2025

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-201100-
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-
235 AM CDT Sat Jul 19 2025

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

.DAY ONE...Today and Tonight

Thunderstorms will be possible this morning. A few of these storms
could be strong to severe in northeast Iowa and southwest Wisconsin.
The main threats are hail and damaging winds. In addition, heavy
rain may cause localized flooding south of Interstate 90.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

No action needed.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

Boyne

Special Weather Statement
National Weather Service La Crosse WI
317 AM CDT Sat Jul 19 2025

IAZ008-018-190915-
Floyd IA-Mitchell IA-
317 AM CDT Sat Jul 19 2025

...A LINE OF STRONG THUNDERSTORMS WILL IMPACT MITCHELL AND FLOYD
COUNTIES THROUGH 415 AM CDT...

At 315 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Northwood to near Manly to near Garner.
Movement was southeast at 40 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

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

Strong thunderstorms will be near...
  St. Ansgar around 330 AM CDT.
  Rudd around 335 AM CDT.
  Osage and Rockford around 340 AM CDT.
  Floyd around 350 AM CDT.
  Charles City and Marble Rock around 355 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4350 9303 4350 9255 4291 9255 4291 9302
TIME...MOT...LOC 0815Z 298DEG 33KT 4350 9318 4325 9322 4310 9352

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

JSB