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FLUS43 KGRB 291718

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Hazardous Weather Outlook

National Weather Service Green Bay WI

1218 PM CDT Mon Jun 29 2026



WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-301730-

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-

1218 PM CDT Mon Jun 29 2026



This Hazardous Weather Outlook is for north-central and northeast

Wisconsin.



.DAY ONE...This Afternoon and Tonight



An Extreme Heat Warning is in effect for central and east- 

central Wisconsin as well as the lakeshore counties. A Heat 

Advisory is in effect for northern Wisconsin. 



There will be an increased risk of rip currents at Lake Michigan

beaches through tonight.



There is a chance for strong to severe thunderstorms late 

tonight across northern Wisconsin. The main hazards would be 

damaging winds and heavy rainfall.



.DAYS TWO THROUGH SEVEN...Tuesday through Sunday



Multiple days of high heat and humidity along with very warm nighttime

lows will result in heat-related impacts much of the upcoming 

week. An Extreme Heat Warning is in effect for central and east-

central Wisconsin as well as the lakeshore counties on Tuesday. A

Heat Advisory is in effect for northern Wisconsin.



There will be an increased risk of rip currents at Lake Michigan

beaches Tuesday and Tuesday evening.



Periodic chances for thunderstorms will last through much of next

week. There will be a risk for strong to severe storms Tuesday 

and Tuesday night as well as Wednesday and Wednesday night. The 

main hazards will be damaging winds and heavy rain. 



Additional rounds of storms are expected Wednesday through the 4th

of July weekend. Though details are not yet known, the pattern 

would support strong or severe storms.



.SPOTTER INFORMATION STATEMENT...



Spotter activation may be needed tonight.



$$



LMZ521-522-541>543-301730-

The Bay of Green Bay south of a line from Cedar River MI to Rock

Island Passage-Lake Michigan from Washington Island to Sheboygan-

1218 PM CDT Mon Jun 29 2026



This Hazardous Weather Outlook is for portions of northwest Lake

Michigan and the waters of Green Bay.



.DAY ONE...This Afternoon and Tonight



Conditions hazardous to small craft are expected on Lake Michigan

due to gusty southerly winds and building waves.



.DAYS TWO THROUGH SEVEN...Tuesday through Sunday



Periodic chances for thunderstorms will last through much of the

upcoming week. Some of these storms could be strong or severe. 

Any thunderstorm would pose a hazard to mariners.



Conditions hazardous to small craft are expected Tuesday and 

Tuesday night on Lake Michigan due to gusty southerly winds and 

building waves.



$$



MPC