Alert archive / Wisconsin / Special Weather Statements in 2025

Special Weather Statement, NWS Green Bay, WI

August 9, 2025Portage County, Wood County, Wisconsin

NWS Green Bay, WI issued this special weather statement at Aug 9, 2025, 12:13 PM CDT for Portage County, Wood County, Wisconsin. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 9, 2025, 12:13 PM CDT (17:13 UTC)
Expired: Aug 9, 2025, 1:15 PM CDT
In force: 62 min
Issued by: NWS Green Bay, WI
Hail: 0.00 in
Wind: 50

Counties Portage County, WI, Wood County, WI

The radar

The La Crosse radar (KARX), 122 km from the middle of the area, began a volume at 17:17 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 5.2 hours before the alert went out and 137 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1553 J/kg
Mixed-layer CIN: -152 J/kg
Mixed-layer LCL: 1070 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Green Bay, WI wrote its last area forecast discussion before this special weather statement went out at Aug 9, 11:59 AM CDT, 14 minutes earlier.

Area forecast discussion, Aug 9, 11:59 AM CDT, 14 minutes before

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Hazardous weather outlook, Aug 9, 11:06 AM CDT, 1 hour 7 minutes before

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In the hours before

Special weather statement, Aug 9, 7:13 AM CDT, 5 hours before

Special Weather Statement
National Weather Service Green Bay WI
713 AM CDT Sat Aug 9 2025

WIZ010-018-030-035-036-091315-
Wood WI-Marathon WI-Portage WI-Oneida WI-Lincoln WI-
713 AM CDT Sat Aug 9 2025

...STRONG THUNDERSTORMS WILL IMPACT NORTHERN WOOD...NORTHWESTERN
PORTAGE...LINCOLN...MARATHON AND CENTRAL ONEIDA COUNTIES THROUGH 815
AM CDT...

At 712 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Willow Lake to near Rib Lake to near
Loyal. Movement was east at 40 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

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

Strong thunderstorms will be near...
  Abbotsford, Tripoli, and Willow Reservoir around 720 AM CDT.
  Spencer and New Wood Wildlife Area around 725 AM CDT.
  Tomahawk around 735 AM CDT.
  Newbold and Gilbert around 740 AM CDT.
  Rhinelander, Woodboro, and Birch Trails Girl Scout Camp around 745
  AM CDT.
  Merrill, Council Grounds State Park, and Crystal Lake Scout
  Reservation around 750 AM CDT.
  Harrison around 755 AM CDT.
  Wausau and Dutch Corners around 805 AM CDT.

Other locations impacted by these storms include Big Eau Pleine
County Park, Moon, Harshaw, Blenker, Fenwood, Otter Lake Campground,
Doering, Knowlton, Roosevelt, and Mc Naughton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4503 9031 4504 9020 4512 9020 4512 9004
      4570 9004 4574 9002 4585 8926 4547 8938
      4547 8943 4459 8947 4459 9031
TIME...MOT...LOC 1212Z 254DEG 35KT 4568 8996 4528 9021 4478 9053

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

GK

Special weather statement, Aug 9, 8:20 AM CDT, 3 hours 53 minutes before

Special Weather Statement
National Weather Service Green Bay WI
820 AM CDT Sat Aug 9 2025

WIZ005-010>012-091400-
Vilas WI-Florence WI-Oneida WI-Forest WI-
820 AM CDT Sat Aug 9 2025

...STRONG THUNDERSTORMS WILL IMPACT NORTHWESTERN FOREST...
SOUTHEASTERN VILAS...NORTHWESTERN FLORENCE AND NORTHEASTERN ONEIDA
COUNTIES THROUGH 900 AM CDT...

At 820 AM CDT, Doppler radar was tracking a cluster of strong
thunderstorms 9 miles west of Headwaters Wilderness, or 9 miles
southeast of Eagle River, moving northeast at 45 mph.

HAZARD...Wind gusts up to 40 mph and half inch 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 northwestern
Forest, southeastern Vilas, northwestern Florence and northeastern
Oneida Counties, including the following locations... Luna-White Deer
Campground, Franklin Lake Campground, Popple River Headwaters Natural
Area, Bastile Lake Natural Area, Anvil Lake Campground, Scott
Lake-Shelp Lake Natural Area, Starks, Windsor Dam Campground,
Clearwater Lake, and Nelma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4602 8882 4603 8878 4602 8878 4603 8873
      4601 8872 4601 8868 4599 8867 4599 8862
      4602 8860 4601 8859 4602 8853 4599 8849
      4600 8846 4598 8842 4599 8838 4597 8833
      4560 8925 4581 8944 4608 8895
TIME...MOT...LOC 1320Z 231DEG 39KT 4580 8915

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

MPC

Special weather statement, Aug 9, 8:33 AM CDT, 3 hours 40 minutes before

Special Weather Statement
National Weather Service Green Bay WI
833 AM CDT Sat Aug 9 2025

WIZ010-011-019-020-030-031-091400-
Shawano WI-Langlade WI-Marathon WI-Oneida WI-Forest WI-Menominee WI-
833 AM CDT Sat Aug 9 2025

...STRONG THUNDERSTORMS WILL IMPACT SOUTHWESTERN FOREST...EASTERN
MARATHON...SOUTHEASTERN ONEIDA...NORTHWESTERN MENOMINEE...LANGLADE
AND WESTERN SHAWANO COUNTIES THROUGH 900 AM CDT...

At 833 AM CDT, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from 11 miles east of
Rhinelander to near Bevent. Movement was east at 20 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

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

Strong thunderstorms will be near...
  Antigo, Wittenberg, and Veterans Memorial County Park around 840
  AM CDT.

Other locations impacted by these storms include Gagen, Lake Noseum,
Aniwa, Popple River Headwaters Natural Area, Elderon, Mattoon, Pike
Lake, Post Lake, Polar, and Kempster.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4468 8895 4468 8944 4567 8926 4581 8876
TIME...MOT...LOC 1333Z 261DEG 19KT 4563 8920 4473 8935

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

JLA

Local storm report, Aug 9, 10:29 AM CDT, 1 hour 44 minutes before

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Special weather statement, Aug 9, 12:13 PM CDT, 0 minutes before

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The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 9, 7:13 AM CDT	Special Weather Statement	GRB	Lincoln, Marathon, Oneida	62 min
Aug 9, 7:33 AM CDT	Severe Thunderstorm Warning	GRB	Langlade, Lincoln, Marathon, Oneida	42 min
Aug 9, 8:20 AM CDT	Special Weather Statement	GRB	Forest	40 min
Aug 9, 8:33 AM CDT	Special Weather Statement	GRB	Langlade	27 min
Aug 9, 9:28 AM CDT	Flood Watch	GRB	Brown, Calumet, Kewaunee, Manitowoc, Outagamie, Portage and 4 more	7 hr
Aug 9, 10:53 AM CDT	Areal Flood Advisory	GRB	Langlade, Lincoln, Marathon, Menominee, Portage, Shawano and 1 more	3 hr
Aug 9, 12:18 PM CDT	Special Weather Statement	GRB	Brown	42 min
Aug 9, 1:00 PM CDT	Special Weather Statement	GRB	Oconto	45 min
Aug 9, 1:03 PM CDT	Special Marine Warning	GRB		57 min
Aug 9, 1:11 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Waupaca, Waushara, Winnebago	36 min
Aug 9, 1:44 PM CDT	Special Weather Statement	GRB	Waupaca	31 min
Aug 9, 1:56 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie, Shawano, Waupaca	34 min
Aug 9, 2:06 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Door, Kewaunee	39 min
Aug 9, 2:16 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Oconto, Outagamie, Shawano, Waupaca	44 min
Aug 9, 2:20 PM CDT	Special Weather Statement	GRB	Calumet, Winnebago	40 min
Aug 9, 2:30 PM CDT	Special Marine Warning	GRB		60 min
Aug 9, 2:32 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Calumet, Outagamie, Winnebago	43 min
Aug 9, 2:34 PM CDT	Special Marine Warning	GRB		66 min
Aug 9, 2:40 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Kewaunee	50 min
Aug 9, 2:42 PM CDT	Tornado Warning	GRB	Brown, Calumet	10 min
Aug 9, 2:56 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Kewaunee, Manitowoc, Oconto	34 min
Aug 9, 3:24 PM CDT	Special Weather Statement	GRB	Manitowoc	51 min
Aug 9, 3:24 PM CDT	Special Weather Statement	GRB	Kewaunee	51 min
Aug 9, 3:28 PM CDT	Special Marine Warning	GRB		62 min
Aug 9, 3:32 PM CDT	Special Marine Warning	GRB		118 min
Aug 9, 3:35 PM CDT	Special Marine Warning	GRB		25 min
Aug 9, 3:46 PM CDT	Severe Thunderstorm Warning	GRB	Door	44 min

Nearby

Special Weather Statements in Wisconsin, 2025 Every special weather statement in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.