538 

WWUS73 KGRB 291451

NPWGRB



URGENT - WEATHER MESSAGE

National Weather Service Green Bay WI

951 AM CDT Mon Jun 29 2026



WIZ022-040-050-292300-

/O.CON.KGRB.XH.W.0001.260629T1700Z-260701T0000Z/

Door-Kewaunee-Manitowoc-

Including the cities of Two Rivers, Fish Creek, Manitowoc, Kewaunee,

Luxemburg, Sturgeon Bay, and Sister Bay

951 AM CDT Mon Jun 29 2026



...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY...



* WHAT...Dangerously hot conditions with heat index values up to 107

  expected inland, away from Lake Michigan. Overnight heat indices

  will remain around 75 degrees, which will still be hazardous for

  anyone without shelter after the extreme heat in the afternoon.



* WHERE...Manitowoc, Door, and Kewaunee Counties.



* WHEN...Until 7 PM CDT Tuesday.



* IMPACTS...Heat related illnesses increase significantly during

  extreme heat and high humidity events.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Drink plenty of fluids, stay in an air-conditioned room, stay out of

the sun, and check up on relatives and neighbors.



&&



$$



WIZ030-031-035>039-045-048-049-292300-

/O.CON.KGRB.XH.W.0001.260629T1700Z-260701T0000Z/

Marathon-Shawano-Wood-Portage-Waupaca-Outagamie-Brown-Waushara-

Winnebago-Calumet-

Including the cities of Wisconsin Rapids, Chilton, Menasha, New

London, Waupaca, Shawano, New Holstein, Wausau, Appleton, Plover,

Redgranite, Marshfield, Stevens Point, Green Bay, Oshkosh, Neenah,

Clintonville, Wautoma, and Brillion

951 AM CDT Mon Jun 29 2026



...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY...



* WHAT...Dangerously hot conditions with heat index values up to 109

  expected both today and Tuesday afternoon. Overnight heat indices

  will remain around 75 degrees, which will still be hazardous for

  anyone without shelter after the extreme heat in the afternoon.



* WHERE...Marathon, Portage, Waushara, Wood, Calumet, Winnebago,

  Brown, Outagamie, Shawano, and Waupaca Counties.



* WHEN...Until 7 PM CDT Tuesday.



* IMPACTS...Heat related illnesses increase significantly during

  extreme heat and high humidity events.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Drink plenty of fluids, stay in an air-conditioned room, stay out of

the sun, and check up on relatives and neighbors.



&&



$$



WIZ005-010>013-018>021-073-074-292300-

/O.CON.KGRB.HT.Y.0001.260629T1700Z-260701T0000Z/

Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-

Langlade-Menominee-Northern Oconto County-Southern Marinette

County-Southern Oconto County-

Including the cities of Niagara, High Falls Reservoir, Middle Inlet,

Loomis, Crandon, Porterfield, Lakewood, Crivitz, Lac Du Flambeau,

Sobieski, Neopit, Aurora, Tomahawk, Oconto, Rhinelander, Brookside,

Merrill, Pensaukee, Peshtigo, Eagle River, Keshena, Wausaukee,

Townsend, Antigo, Little Suamico, Harmony, Spread Eagle, Mountain,

and Commonwealth

951 AM CDT Mon Jun 29 2026



...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY...



* WHAT...Heat index values up to 104 during the day both today and

  Tuesday afternoon. Overnight heat indices will remain above 70

  degrees, which will still be hazardous for anyone without shelter

  after the heat in the afternoon.



* WHERE...Portions of north central and northeast Wisconsin.



* WHEN...Until 7 PM CDT Tuesday.



* IMPACTS...Hot temperatures and high humidity may cause heat

  illnesses.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Drink plenty of fluids, stay in an air-conditioned room, stay out of

the sun, and check up on relatives and neighbors.



&&



$$



For more information, visit us at http://www.weather.gov/GreenBay



Uhlmann