Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 70, NWS Green Bay, WI

July 2, 2025Marathon County, Shawano County, Waupaca County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 2, 2025, 5:41 PM CDT for Marathon County, Shawano County, Waupaca County, Wisconsin. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 2, 2025, 5:41 PM CDT (22:41 UTC)
Expired: Jul 2, 2025, 6:30 PM CDT
In force: 49 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Marathon County, WI, Shawano County, WI, Waupaca County, WI

The radar

The Green Bay radar (KGRB), 87 km from the middle of the area, began a volume at 22:40 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, 10.7 hours before the alert went out and 88 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: 344 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 1538 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 79 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 2, 4:25 PM CDT, 1 hour 16 minutes earlier.

Area forecast discussion, Jul 2, 4:25 PM CDT, 1 hour 16 minutes before

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Hazardous weather outlook, Jul 2, 4:32 PM CDT, 1 hour 9 minutes before

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In the hours before

Special weather statement, Jul 2, 3:48 PM CDT, 1 hour 53 minutes before

Special Weather Statement
National Weather Service Green Bay WI
348 PM CDT Wed Jul 2 2025

WIZ018-019-022130-
Langlade WI-Lincoln WI-
348 PM CDT Wed Jul 2 2025

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN LINCOLN AND WEST
CENTRAL LANGLADE COUNTIES THROUGH 430 PM CDT...

At 348 PM CDT, Doppler radar was tracking a strong thunderstorm near
Birch Trails Girl Scout Camp, or 24 miles southwest of Rhinelander,
moving south at 15 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 strong thunderstorm will be near...
  Birch Trails Girl Scout Camp around 355 PM CDT.

Other locations impacted by this storm include Bill Cross Rapids
Wildlife Area, Otis, Gleason, Bloomville, Doering, and Irma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4540 8987 4544 8958 4518 8930 4512 8967
      4512 8984
TIME...MOT...LOC 2048Z 342DEG 11KT 4534 8973

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

JG

Local storm report, Jul 2, 3:50 PM CDT, 1 hour 51 minutes before

Preliminary Local Storm Report
National Weather Service Green Bay WI
350 PM CDT Wed Jul 2 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0330 PM     Tstm Wnd Gst     5 NNE Breed             45.12N 88.37W
07/02/2025  M50 MPH          Oconto             WI   Mesonet

            Mesonet station TT278 Breed 5 NE.

&&

Special weather statement, Jul 2, 3:56 PM CDT, 1 hour 45 minutes before

Special Weather Statement
National Weather Service Green Bay WI
356 PM CDT Wed Jul 2 2025

WIZ030-031-036-037-022145-
Waupaca WI-Shawano WI-Marathon WI-Portage WI-
356 PM CDT Wed Jul 2 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN PORTAGE...
SOUTHEASTERN MARATHON...NORTHWESTERN WAUPACA AND WEST CENTRAL SHAWANO
COUNTIES THROUGH 445 PM CDT...

At 356 PM CDT, Doppler radar was tracking a strong thunderstorm over
Bevent, or 16 miles southeast of Wausau, moving southeast at 15 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 strong thunderstorm will be near...
  Bevent around 400 PM CDT.

Other locations impacted by this storm include Northland, Whitcomb,
Ringle, Elderon, Pike Lake, Norske, Galloway, Rosholt, Holt, and
Hatley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4477 8954 4491 8944 4482 8901 4455 8919
TIME...MOT...LOC 2056Z 295DEG 14KT 4480 8941

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

JG

Special weather statement, Jul 2, 4:25 PM CDT, 1 hour 16 minutes before

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Special weather statement, Jul 2, 4:52 PM CDT, 49 minutes before

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Special weather statement, Jul 2, 5:17 PM CDT, 24 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
Jul 2, 2:31 PM CDT	Special Weather Statement	GRB	Lincoln	44 min
Jul 2, 2:38 PM CDT	Special Weather Statement	GRB	Portage	52 min
Jul 2, 3:00 PM CDT	Special Weather Statement	GRB	Marathon	45 min
Jul 2, 3:07 PM CDT	Special Weather Statement	GRB	Oconto	38 min
Jul 2, 3:16 PM CDT	Special Weather Statement	GRB	Marathon, Menominee	59 min
Jul 2, 3:41 PM CDT	Special Weather Statement	GRB	Oconto	34 min
Jul 2, 3:48 PM CDT	Special Weather Statement	GRB	Lincoln	42 min
Jul 2, 3:56 PM CDT	Special Weather Statement	GRB	Portage	49 min
Jul 2, 4:19 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Shawano, Waupaca	41 min
Jul 2, 4:25 PM CDT	Special Weather Statement	GRB	Brown	50 min
Jul 2, 4:52 PM CDT	Special Weather Statement	GRB	Waupaca	38 min
Jul 2, 5:17 PM CDT	Special Weather Statement	GRB	Marathon, Menominee, Portage	43 min
Jul 2, 5:59 PM CDT	Special Weather Statement	GRB	Marathon, Portage, Shawano	46 min
Jul 2, 6:47 PM CDT	Special Weather Statement	GRB	Marathon, Portage, Waupaca	43 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2025 Every severe thunderstorm warning 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.