


Hazardous Weather Outlook
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
603 FLUS43 KGRB 182010 HWOGRB Hazardous Weather Outlook National Weather Service Green Bay WI 310 PM CDT Mon Aug 18 2025 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-192015- 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- 310 PM CDT Mon Aug 18 2025 This Hazardous Weather Outlook is for north-central and northeast Wisconsin. .DAY ONE...Tonight Isolated thunderstorms are expected, mainly across east central WI through early this evening. Severe storms are not expected; however, brief torrential rainfall may cause localized flooding in low-lying and urban areas. There is a high risk of dangerous swimming conditions and rip currents along Lake Michigan beaches in Kewaunee and Manitowoc counties through early this evening. A Beach Hazards Statement is in effect. Locally dense fog is expected overnight, reducing visibility to under one half mile, creating hazardous and rapidly changing travel conditions. .DAYS TWO THROUGH SEVEN...Tuesday through Monday There is a slight chance of thunderstorms in east-central Wisconsin Tuesday afternoon and across the entire area on Friday. Severe weather is not expected. .SPOTTER INFORMATION STATEMENT... Spotters are requested to report any flooding to the National Weather Service in Green Bay. $$ LMZ521-522-541>543-192015- The Bay of Green Bay south of a line from Cedar River MI to Rock Island Passage-Lake Michigan from Washington Island to Sheboygan- 310 PM CDT Mon Aug 18 2025 This Hazardous Weather Outlook is for portions of northwest Lake Michigan and the waters of Green Bay. .DAY ONE...Tonight Conditions hazardous to small craft are expected through early this evening along Lake Michigan south of Sturgeon Bay due to persistent southeast winds and high waves. A Small Craft Advisory is in effect. A thunderstorm is possible through this evening, mainly south of Sturgeon Bay. Patchy fog may develop late tonight, which may pose a navigation hazard for mariners due to reduced visibility. .DAYS TWO THROUGH SEVEN...Tuesday through Monday The probability for widespread hazardous weather is low. $$ Kruk