


Hazardous Weather Outlook
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
359 FLUS43 KGRR 220826 HWOGRR Hazardous Weather Outlook National Weather Service Grand Rapids MI 426 AM EDT Fri Aug 22 2025 MIZ037>040-043>046-050>052-056>059-064>067-071>074-230830- Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon- Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton- Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- 426 AM EDT Fri Aug 22 2025 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Today and Tonight There is a low chance for thunderstorms late tonight. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Thunderstorms will be possible Saturday and again Sunday night into Monday. Thunderstorms are not expected to be severe but will be capable of lightning and on Monday could also include small hail. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$ LMZ844>849-230830- St Joseph to South Haven MI-South Haven to Holland MI- Holland to Grand Haven MI-Grand Haven to Whitehall MI- Whitehall to Pentwater MI-Pentwater to Manistee MI- 426 AM EDT Fri Aug 22 2025 This hazardous weather outlook is for the nearshore waters from St Joseph to Manistee. .DAY ONE...Today and Tonight There is a low chance for thunderstorms late tonight. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Thunderstorms will be possible Saturday. There is another chance for thunderstorms and even waterspouts Sunday night into Monday. Winds and waves are expected to increase beginning Saturday and will remain at hazardous levels for swimmers and small craft through at least Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$