


Hazardous Weather Outlook
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
731 FLUS43 KGRR 040824 HWOGRR Hazardous Weather Outlook National Weather Service Grand Rapids MI 424 AM EDT Mon Aug 4 2025 MIZ037>040-043>046-050>052-056>059-064>067-071>074-050830- Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon- Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton- Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- 424 AM EDT Mon Aug 4 2025 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Today and Tonight Some patchy fog will be possible through sunrise this morning. The Michigan Department of Environment, Great Lakes, and Energy (EGLE) expects pollutants (mainly wildfire smoke from Canada) to be in the Unhealthy for Sensitive Groups (USG, Orange AQI) range with some locations reaching the Unhealthy (Red AQI) range at least through today and into tonight. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday There will be a small chance of a thunderstorm Wednesday afternoon and evening for areas away from Lake Michigan. Severe weather is not expected. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$ LMZ844>849-050830- St Joseph to South Haven MI-South Haven to Holland MI- Holland to Grand Haven MI-Grand Haven to Whitehall MI- Whitehall to Pentwater MI-Pentwater to Manistee MI- 424 AM EDT Mon Aug 4 2025 This hazardous weather outlook is for the nearshore waters from St Joseph to Manistee. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$