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Severe Thunderstorm Warning 0172
Issued by the La Crosse Forecast Office

Action Issued Starts Expiration
New 2026-08-11 07:37:10 2026-08-11 07:37:00 2026-08-11 08:45:00
Continued 2026-08-11 07:51:11 2026-08-11 08:45:00
Cancelled 2026-08-11 07:59:41 2026-08-11 08:45:00
Continued 2026-08-11 07:59:41 2026-08-11 08:45:00
Continued 2026-08-11 08:11:56 2026-08-11 08:45:00
Continued 2026-08-11 08:27:11 2026-08-11 08:45:00
Cancelled 2026-08-11 08:32:12 2026-08-11 08:45:00


Action: New
Issued At: 2026-08-11 07:37:10

911 
WUUS53 KARX 111237
SVRARX
IAC043-WIC043-111345-
/O.NEW.KARX.SV.W.0172.260811T1237Z-260811T1345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
737 AM CDT Tue Aug 11 2026

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for...
  Southeastern Clayton County in northeastern Iowa...
  Southern Grant County in southwestern Wisconsin...

* Until 845 AM CDT.

* At 736 AM CDT, severe thunderstorms were located along a line
  extending from near Elkader to Edgewood, moving east at 45 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Severe thunderstorms will be near...
  Colesburg around 745 AM CDT.
  Guttenberg around 755 AM CDT.
  Cassville around 800 AM CDT.
  Lancaster around 820 AM CDT.
  Dickeyville around 825 AM CDT.
  Platteville and Cuba City around 835 AM CDT.

Other locations impacted by these severe thunderstorms include Camp
C.S. Klaus, Big H Campground, Arthur, Turkey River, Beetown, Union,
and Cornelia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 4254 9064 4264 9071 4268 9090 4265 9090
      4264 9126 4281 9124 4287 9043 4251 9042
      4251 9064
TIME...MOT...LOC 1236Z 271DEG 39KT 4282 9147 4264 9138 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Skow


Action: Continued
Issued At: 2026-08-11 07:51:11

319 
WWUS53 KARX 111250
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
750 AM CDT Tue Aug 11 2026

IAC043-WIC043-111345-
/O.CON.KARX.SV.W.0172.000000T0000Z-260811T1345Z/
Clayton IA-Grant WI-
750 AM CDT Tue Aug 11 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CDT
FOR SOUTHEASTERN CLAYTON AND SOUTHERN GRANT COUNTIES...

At 750 AM CDT, severe thunderstorms were located along a line
extending from 6 miles north of Colesburg to near New Vienna, moving
east at 50 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

These severe storms will be near...
  Cassville around 800 AM CDT.
  Dickeyville around 820 AM CDT.
  Platteville and Cuba City around 825 AM CDT.

Other locations impacted by these severe thunderstorms include
Kieler, Camp C.S. Klaus, Lock And Dam 11, Big H Campground, Sandy
Hook, Potosi, and North Buena Vista.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 4254 9064 4264 9071 4268 9090 4265 9090
      4264 9126 4273 9124 4280 9043 4251 9042
      4251 9064
TIME...MOT...LOC 1250Z 261DEG 44KT 4273 9123 4252 9110 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Skow


Action: Cancelled
Issued At: 2026-08-11 07:59:41

604 
WWUS53 KARX 111259
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
759 AM CDT Tue Aug 11 2026

IAC043-111309-
/O.CAN.KARX.SV.W.0172.000000T0000Z-260811T1345Z/
Clayton IA-
759 AM CDT Tue Aug 11 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLAYTON COUNTY IS
CANCELLED...

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

A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
southwestern Wisconsin.

&&

LAT...LON 4266 9080 4265 9042 4251 9042 4251 9064
      4254 9064 4264 9071
TIME...MOT...LOC 1259Z 278DEG 46KT 4264 9106 4247 9088 

$$

WIC043-111345-
/O.CON.KARX.SV.W.0172.000000T0000Z-260811T1345Z/
Grant WI-
759 AM CDT Tue Aug 11 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CDT
FOR SOUTHEASTERN GRANT COUNTY...

At 759 AM CDT, severe thunderstorms were located along a line
extending from near Luxemburg to near Peosta, moving east at 55 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

These severe storms will be near...
  Dickeyville around 820 AM CDT.
  Hazel Green around 825 AM CDT.
  Cuba City around 830 AM CDT.

Other locations impacted by these severe thunderstorms include
Louisburg, Kieler, Lock And Dam 11, Sinsinawa, Sandy Hook, and
Georgetown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 4266 9080 4265 9042 4251 9042 4251 9064
      4254 9064 4264 9071
TIME...MOT...LOC 1259Z 278DEG 46KT 4264 9106 4247 9088 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Skow


Action: Continued
Issued At: 2026-08-11 07:59:41

604 
WWUS53 KARX 111259
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
759 AM CDT Tue Aug 11 2026

IAC043-111309-
/O.CAN.KARX.SV.W.0172.000000T0000Z-260811T1345Z/
Clayton IA-
759 AM CDT Tue Aug 11 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLAYTON COUNTY IS
CANCELLED...

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

A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
southwestern Wisconsin.

&&

LAT...LON 4266 9080 4265 9042 4251 9042 4251 9064
      4254 9064 4264 9071
TIME...MOT...LOC 1259Z 278DEG 46KT 4264 9106 4247 9088 

$$

WIC043-111345-
/O.CON.KARX.SV.W.0172.000000T0000Z-260811T1345Z/
Grant WI-
759 AM CDT Tue Aug 11 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CDT
FOR SOUTHEASTERN GRANT COUNTY...

At 759 AM CDT, severe thunderstorms were located along a line
extending from near Luxemburg to near Peosta, moving east at 55 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

These severe storms will be near...
  Dickeyville around 820 AM CDT.
  Hazel Green around 825 AM CDT.
  Cuba City around 830 AM CDT.

Other locations impacted by these severe thunderstorms include
Louisburg, Kieler, Lock And Dam 11, Sinsinawa, Sandy Hook, and
Georgetown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 4266 9080 4265 9042 4251 9042 4251 9064
      4254 9064 4264 9071
TIME...MOT...LOC 1259Z 278DEG 46KT 4264 9106 4247 9088 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Skow


Action: Continued
Issued At: 2026-08-11 08:11:56

938 
WWUS53 KARX 111311
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
811 AM CDT Tue Aug 11 2026

WIC043-111345-
/O.CON.KARX.SV.W.0172.000000T0000Z-260811T1345Z/
Grant WI-
811 AM CDT Tue Aug 11 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CDT
FOR SOUTHEASTERN GRANT COUNTY...

At 810 AM CDT, severe thunderstorms were located along a line
extending from Balltown to near Dubuque, moving east 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...
  Dickeyville around 825 AM CDT.
  Hazel Green around 830 AM CDT.
  Cuba City around 835 AM CDT.

Other locations impacted by these severe thunderstorms include
Louisburg, Kieler, Lock And Dam 11, Sinsinawa, Sandy Hook, and
Georgetown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

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

&&

LAT...LON 4265 9042 4251 9042 4251 9064 4254 9064
      4264 9071
TIME...MOT...LOC 1310Z 271DEG 39KT 4264 9090 4247 9072 

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

$$

Skow


Action: Continued
Issued At: 2026-08-11 08:27:11

276 
WWUS53 KARX 111327
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
827 AM CDT Tue Aug 11 2026

WIC043-111345-
/O.CON.KARX.SV.W.0172.000000T0000Z-260811T1345Z/
Grant WI-
827 AM CDT Tue Aug 11 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CDT
FOR SOUTHEASTERN GRANT COUNTY...

At 826 AM CDT, severe thunderstorms were located along a line
extending from near Dickeyville to East Dubuque, moving east at 40
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Cuba City, Hazel Green, Dickeyville, Georgetown, Kieler, Lock And Dam
11, Sandy Hook, Louisburg, and Sinsinawa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

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

&&

LAT...LON 4265 9042 4251 9042 4251 9064 4254 9064
      4264 9071
TIME...MOT...LOC 1326Z 267DEG 34KT 4264 9068 4250 9060 

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

$$

Skow


Action: Cancelled
Issued At: 2026-08-11 08:32:12

496 
WWUS53 KARX 111331
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
831 AM CDT Tue Aug 11 2026

WIC043-111341-
/O.CAN.KARX.SV.W.0172.000000T0000Z-260811T1345Z/
Grant WI-
831 AM CDT Tue Aug 11 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GRANT COUNTY 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.  However, gusty winds are
still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
southwestern Wisconsin.

&&

LAT...LON 4265 9042 4251 9042 4251 9064 4254 9064
      4264 9071
TIME...MOT...LOC 1328Z 271DEG 39KT 4264 9064 4250 9056 

$$

Skow



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