Severe Weather Monitor

Severe Weather Monitor
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Northeast Wisconsin watch/warning/advisories

Latest WI Weather Alerts

Short-Term
Forecast

Special Weather Statement

Storm Reports

Mesoanalysis Page

Additional
Severe Weather Info and Maps

NE Wisconsin Watch/Warning/Advisories
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Weather Info
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U.S. Watch/Warning/Advisories
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Hazardous Weather Outlook
^{Note: Product updated daily by 6 AM and as needed during the day.}

728
FLUS43 KGRB 211911
HWOGRB

Hazardous Weather Outlook
National Weather Service Green Bay WI
211 PM CDT Tue Jul 21 2026

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-221915-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
211 PM CDT Tue Jul 21 2026

This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday

There is a chance of thunderstorms from Saturday into Sunday, but
it`s too early to determine the potential for severe weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

LMZ521-522-541>543-221915-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
211 PM CDT Tue Jul 21 2026

This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.

.DAY ONE...Tonight

Conditions hazardous to small craft are expected.

.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday

There is a chance for thunderstorms Saturday night into Sunday.

$$

Watch County List
^{Note: Product issued only as needed -- Make sure date on product matches today's date.}

280
WWUS63 KGRB 210353
WCNGRB

WATCH COUNTY NOTIFICATION FOR WATCH 501
NATIONAL WEATHER SERVICE GREEN BAY WI
1053 PM CDT MON JUL 20 2026

WIC009-015-029-061-071-075-078-083-087-097-115-135-137-139-141-
210500-
/O.EXP.KGRB.TO.A.0501.000000T0000Z-260721T0400Z/

THE NATIONAL WEATHER SERVICE WILL ALLOW TORNADO WATCH 501 TO
EXPIRE AT 11 PM CDT THIS EVENING FOR THE FOLLOWING AREAS

IN WISCONSIN THIS ALLOWS TO EXPIRE 15 COUNTIES

IN CENTRAL WISCONSIN

PORTAGE WAUSHARA WOOD

IN EAST CENTRAL WISCONSIN

CALUMET MANITOWOC WINNEBAGO

IN NORTHEAST WISCONSIN

BROWN DOOR KEWAUNEE
MARINETTE MENOMINEE OCONTO
OUTAGAMIE SHAWANO WAUPACA

THIS INCLUDES THE CITIES OF ALASKA, ANGELICA, APPLETON, ARNOTT,
AURORAVILLE, BAKERVILLE, BORTH, BROOKSIDE, CLAY BANKS,
CLINTONVILLE, DARBOY, DUNBAR, DUNDAS, DUVALL, GOODMAN, GREEN BAY,
HARMONY, HOFA PARK, INSTITUTE, KESHENA, KEWAUNEE, KING,
LIND CENTER, LITTLE SUAMICO, MACKVILLE, MANITOWOC, MARSHFIELD,
MENASHA, NEENAH, NEOPIT, NEW LONDON, NIAGARA, NORMAN,
NORTHERN LAKE WINNEBAGO, NORTHPORT, OCONTO, OSHKOSH, PEMBINE,
PENSAUKEE, PESHTIGO, PLOVER, POINT BEACH STATE PARK, PORTERFIELD,
POTAWATOMI STATE PARK, RANKIN, RIO CREEK, ROSTOK, RURAL, SHAWANO,
SHOTO, SILVER LAKE, SOBIESKI, STEVENS POINT, THORNTON,
TWO RIVERS, VALMY, WAUPACA, WAUTOMA, WINNEBAGO, WISCONSIN RAPIDS,
AND WITTMAN FIELD.

$$

LMZ521-522-541>543-210500-
/O.EXP.KGRB.TO.A.0501.000000T0000Z-260721T0400Z/

THE NATIONAL WEATHER SERVICE WILL ALLOW TORNADO WATCH 501 TO
EXPIRE AT 11 PM CDT THIS EVENING FOR THE FOLLOWING AREAS

THIS ALLOWS TO EXPIRE THE FOLLOWING ADJACENT COASTAL WATERS

GREEN BAY SOUTH OF LINE FROM CEDAR RIVER TO ROCK ISLAND PASSAGE
AND NORTH OF A LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI

GREEN BAY SOUTH OF LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI
ROCK ISLAND PASSAGE TO STURGEON BAY WI
STURGEON BAY TO TWO RIVERS WI
TWO RIVERS TO SHEBOYGAN WI

$$