Hazardous Weather Outlook
Issued by NWS Green Bay, WI
Issued by NWS Green Bay, WI
454 FLUS43 KGRB 181850 HWOGRB Hazardous Weather Outlook National Weather Service Green Bay WI 150 PM CDT Wed Jun 18 2025 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-191900- 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- 150 PM CDT Wed Jun 18 2025 This Hazardous Weather Outlook is for north-central and northeast Wisconsin. .DAY ONE...Tonight There is a chance of thunderstorms through tonight. Severe storms are not expected, however some of the stronger storms could produce small hail, brief gusty winds to 40 mph, and locally heavy rainfall in excess of 1 inch. .DAYS TWO THROUGH SEVEN...Thursday through Wednesday Thunderstorms will be possible at times From Thursday afternoon through Saturday morning. The time periods with greatest chances for thunderstorms include Thursday afternoon and evening and then again from late Friday night into Saturday morning when some of the storms could become strong or severe at times. There is also the potential for torrential rainfall with the stronger storms. Thunderstorms are also possible early next week, however it is too early to determine if storms would become severe. A hot and humid airmass will move into the region this weekend into early next week. Heat index values could climb well into the 90s to around 100 degrees. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected tonight. $$ LMZ521-522-541>543-191900- The Bay of Green Bay south of a line from Cedar River MI to Rock Island Passage-Lake Michigan from Washington Island to Sheboygan- 150 PM CDT Wed Jun 18 2025 This Hazardous Weather Outlook is for portions of northwest Lake Michigan and the waters of Green Bay. .DAY ONE...Tonight Thunderstorms are possible at times through late tonight that would pose a hazard to mariners. .DAYS TWO THROUGH SEVEN...Thursday through Wednesday Thunderstorms will be possible at times from Thursday afternoon through Saturday morning, and then again early next week. Any thunderstorms that form would pose a hazard to mariners. Increasing southerly winds and building waves could create hazardous conditions for small craft from late Friday night through the weekend. Dense marine fog may be possible at times this weekend into early next week, especially on Lake Michigan. $$ MPC