Heat Expands for Center of the Nation; Severe Thunderstorms for Plains and Upper Midwest

Dangerous heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest. Critical fire weather for portions of the Intermountain West. Risk for severe thunderstorms and flash flooding across the Upper Midwest/Great Lakes, Ohio Valley, and portions of the mid-Atlantic. Active monsoonal moisture fuels thunderstorms over the Southwest. Hurricane Fausto in the Pacific, should weaken Read More >

Coastal Waters Forecast for Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake (LMZ878) (Text-Only)
NWS Forecast for: Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake (LMZ878)
Issued by: National Weather Service Grand Rapids, MI
Last Update: 353 AM CDT Sun Jul 26 2026
Print


Today: Southwest winds 10 to 15 kt becoming south 10 to 20 kt. Waves 1 to 2 ft.

Tonight: South winds 10 to 15 kt. Slight chance of showers and thunderstorms in the evening, then chance of showers and slight chance of thunderstorms overnight. Waves 1 to 3 ft.

Monday: South winds 10 to 15 kt increasing to 10 to 20 kt. Showers likely in the morning, then chance of showers in the afternoon. Waves 1 to 3 ft.

Monday Night: West winds 10 to 20 kt veering to north 15 to 25 kt. Chance of showers and thunderstorms in the evening, then chance of showers overnight. Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.

Tuesday: North winds to 30 kt increasing to gales to 35 kt. Waves 6 to 9 ft occasionally to 12 ft building to 8 to 11 ft occasionally to 14 ft.

Tuesday Night: North gales to 35 kt diminishing to 10 to 20 kt. Waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft occasionally to 10 ft.

Wednesday: North winds 10 to 20 kt increasing to 30 kt. Waves 3 to 5 ft.

Thursday: East winds 10 to 15 kt becoming northeast 10 to 20 kt. Waves 1 to 3 ft.







Zone Forecast: Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake (LMZ878)

Visit your local NWS office at: https://www.weather.gov/grr/