


Hazardous Weather Outlook
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
142 FLUS43 KGRR 150858 HWOGRR Hazardous Weather Outlook National Weather Service Grand Rapids MI 458 AM EDT Tue Jul 15 2025 MIZ037>040-043>046-050>052-056>059-064>067-071>074-160900- Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon- Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton- Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- 458 AM EDT Tue Jul 15 2025 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Today and Tonight Patchy fog will be possible this morning. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Thunderstorms will become possible Wednesday morning, and will continue to be possible into Thursday. Some of the storms could become locally strong to severe. Large hail to quarter sized, wind gusts up to 60 mph, locally heavy rainfall, and lightning will be the main threats. .SPOTTER INFORMATION STATEMENT... Spotter activation will be possible Wednesday afternoon and evening. $$ LMZ844>849-160900- St Joseph to South Haven MI-South Haven to Holland MI- Holland to Grand Haven MI-Grand Haven to Whitehall MI- Whitehall to Pentwater MI-Pentwater to Manistee MI- 458 AM EDT Tue Jul 15 2025 This hazardous weather outlook is for the nearshore waters from St Joseph to Manistee. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Thunderstorms will become possible Wednesday morning, and will continue to be possible into Thursday. Some of the storms could become locally strong to severe. Large hail to quarter sized, wind gusts greater than 35 knots, and lightning will be the main threats. Winds and waves are expected to become hazardous to boaters and swimmers on Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation will be possible Wednesday afternoon and evening. $$