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Severe Thunderstorm Warning 0129
Issued by the Green Bay Forecast Office

Action Issued Starts Expiration
New 2026-08-11 23:27:05 2026-08-11 23:26:00 2026-08-12 00:30:00
Continued 2026-08-11 23:52:36 2026-08-12 00:30:00
Cancelled 2026-08-12 00:16:36 2026-08-12 00:30:00
Continued 2026-08-12 00:16:36 2026-08-12 00:30:00
Expired 2026-08-12 00:31:07 2026-08-12 00:30:00

Action: New
Issued At: 2026-08-11 23:27:05 

069 
WUUS53 KGRB 120426
SVRGRB
WIC073-097-141-120530-
/O.NEW.KGRB.SV.W.0129.260812T0426Z-260812T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
1126 PM CDT Tue Aug 11 2026

The National Weather Service in Green Bay has issued a

* Severe Thunderstorm Warning for...
  South Central Marathon County in central Wisconsin...
  Northwestern Portage County in central Wisconsin...
  Northeastern Wood County in central Wisconsin...

* Until 1230 AM CDT.

* At 1126 PM CDT, a severe thunderstorm was located 11 miles
  northeast of Marshfield, or 22 miles southwest of Wausau, moving
  southeast at 20 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

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

* Other locations impacted by the severe thunderstorm include
  Rozellville, Halder, Big Eau Pleine County Park, Auburndale,
  Blenker, Milladore, Sherry and Junction City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.

Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4470 9022 4480 8982 4456 8960 4446 9012
TIME...MOT...LOC 0426Z 330DEG 17KT 4476 8999

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JLA
Action: Continued
Issued At: 2026-08-11 23:52:36 

736 
WWUS53 KGRB 120452
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
1152 PM CDT Tue Aug 11 2026

WIC073-097-141-120530-
/O.CON.KGRB.SV.W.0129.000000T0000Z-260812T0530Z/
Marathon WI-Portage WI-Wood WI-
1152 PM CDT Tue Aug 11 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR SOUTH CENTRAL MARATHON, NORTHWESTERN PORTAGE AND NORTHEASTERN
WOOD COUNTIES...

At 1152 PM CDT, a severe thunderstorm was located 13 miles east of
Marshfield, or 19 miles north of Wisconsin Rapids, moving southeast
at 20 mph. Power lines were downed with the storm near Stratford
around 1120 PM.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

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

Other locations impacted by the severe thunderstorm include
Auburndale, Blenker, Milladore, Sherry and Junction City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.

Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4469 9009 4473 9011 4480 8982 4456 8960
      4448 9001
TIME...MOT...LOC 0426Z 330DEG 17KT 4475 8999

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JLA
Action: Cancelled
Issued At: 2026-08-12 00:16:36 

461 
WWUS53 KGRB 120516
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
1216 AM CDT Wed Aug 12 2026

WIC073-120526-
/O.CAN.KGRB.SV.W.0129.000000T0000Z-260812T0530Z/
Marathon WI-
1216 AM CDT Wed Aug 12 2026

...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTH CENTRAL
MARATHON COUNTY...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. To report severe weather,
contact your nearest law enforcement agency. They will send your
report to the National Weather Service office.

&&

LAT...LON 4450 8991 4466 8995 4468 8983 4468 8973
      4456 8960
TIME...MOT...LOC 0452Z 330DEG 17KT 4465 8991

$$


WIC097-141-120530-
/O.CON.KGRB.SV.W.0129.000000T0000Z-260812T0530Z/
Portage WI-Wood WI-
1216 AM CDT Wed Aug 12 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR NORTHWESTERN PORTAGE AND NORTHEASTERN WOOD COUNTIES...

At 1216 AM CDT, a severe thunderstorm was located 11 miles north of
Wisconsin Rapids, moving southeast at 20 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

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

Other locations impacted by the severe thunderstorm include Junction
City, Milladore, Sherry and Blenker.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.

Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4450 8991 4466 8995 4468 8983 4468 8973
      4456 8960
TIME...MOT...LOC 0452Z 330DEG 17KT 4465 8991

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JLA
Action: Continued
Issued At: 2026-08-12 00:16:36 

461 
WWUS53 KGRB 120516
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
1216 AM CDT Wed Aug 12 2026

WIC073-120526-
/O.CAN.KGRB.SV.W.0129.000000T0000Z-260812T0530Z/
Marathon WI-
1216 AM CDT Wed Aug 12 2026

...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTH CENTRAL
MARATHON COUNTY...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. To report severe weather,
contact your nearest law enforcement agency. They will send your
report to the National Weather Service office.

&&

LAT...LON 4450 8991 4466 8995 4468 8983 4468 8973
      4456 8960
TIME...MOT...LOC 0452Z 330DEG 17KT 4465 8991

$$


WIC097-141-120530-
/O.CON.KGRB.SV.W.0129.000000T0000Z-260812T0530Z/
Portage WI-Wood WI-
1216 AM CDT Wed Aug 12 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR NORTHWESTERN PORTAGE AND NORTHEASTERN WOOD COUNTIES...

At 1216 AM CDT, a severe thunderstorm was located 11 miles north of
Wisconsin Rapids, moving southeast at 20 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

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

Other locations impacted by the severe thunderstorm include Junction
City, Milladore, Sherry and Blenker.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.

Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4450 8991 4466 8995 4468 8983 4468 8973
      4456 8960
TIME...MOT...LOC 0452Z 330DEG 17KT 4465 8991

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JLA
Action: Expired
Issued At: 2026-08-12 00:31:07 

792 
WWUS53 KGRB 120530
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
1230 AM CDT Wed Aug 12 2026

WIC097-141-120540-
/O.EXP.KGRB.SV.W.0129.000000T0000Z-260812T0530Z/
Portage WI-Wood WI-
1230 AM CDT Wed Aug 12 2026

...SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR NORTHWESTERN PORTAGE
AND NORTHEASTERN WOOD COUNTIES...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire. To report severe
weather, contact your nearest law enforcement agency. They will send
your report to the National Weather Service office.

&&

LAT...LON 4450 8991 4466 8995 4468 8983 4468 8973
      4456 8960
TIME...MOT...LOC 0516Z 330DEG 17KT 4455 8983

$$

JLA

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