576
FLUS43 KGRR 170847
HWOGRR

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
447 AM EDT Sun Aug 17 2025

MIZ037>040-043>046-050>052-056>059-064>067-071>074-180900-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
447 AM EDT Sun Aug 17 2025

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are expected from Monday into Tuesday. Severe
weather is not anticipated at this time, but locally heavy rain
will possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

LMZ844>849-180900-
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-
447 AM EDT Sun Aug 17 2025

This hazardous weather outlook is for the nearshore waters from
St Joseph to Manistee.

.DAY ONE...Today and Tonight

Conditions will become hazardous for boaters and swimmers up
towards Big Sable Point this afternoon and evening.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are expected from Monday into Tuesday. Severe
weather is not anticipated at this time, but locally heavy rain
will possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$