LMZ874 Expires:202504232115;;315219 Fzus63 Kmkx 231347 Glflm
open lake forecast for lake michigan national weather service milwaukee/sullivan wi 847 am cdt Wed apr 23 2025
for waters beyond five nautical miles of shore on lake michigan.
waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered.
Synopsis..
low pressure around 29.9 inches continues to slowly weaken as it lifts north of mn into south central canada. Light and variable winds persist over lake michigan as a weak warm front is expected to lift north through the morning and continue northward through this evening into Thursday. Expecting periodic shower and Thunderstorm chances along the frontal boundary as it slides north. While winds remain fairly light expecting more easterly winds north of the warm front with more southerly winds south of the boundary. Expecting to see the front to waffle back south and gradually wash out into Thursday as high pressure builds across the upper great lakes. Winds look to be variable through the end of the week before gradually increasing into Friday as another surface low works it way across the midwest from the plains.
lmz080-669-671-673-675-777-779-870-872-874-876-878-232115- lake michigan from michigan city in to st. Joseph mi 5 nm offshore to mid lake- lake michigan from sheboygan to port washington wi 5 nm offshore to mid lake- lake michigan from port washington to north point light wi 5 nm offshore to mid lake- lake michigan from north point light to wind point wi 5 nm offshore to mid lake- lake michigan from wind point wi to winthrop harbor il 5 nm offshore to mid lake- lake michigan from winthrop harbor to wilmette harbor il 5 nm offshore to mid lake- lake michigan from wilmette harbor il to michigan city in 5 nm offshore to mid lake- lake michigan from whitehall to pentwater mi 5 nm offshore to mid lake- lake michigan from grand haven to whitehall mi 5 nm offshore to mid lake- lake michigan from holland to grand haven mi 5 nm offshore to mid lake- lake michigan from south haven to holland mi 5 nm offshore to mid lake- lake michigan from st. Joseph to south haven mi 5 nm offshore to mid lake- 847 am cdt Wed apr 23 2025
sheboygan wi to pentwater mi south...
Rest of today..Southeast winds 5 to 10 kt increasing to 10 to 15 kt. Slight chance of rain showers through mid morning, then chance of rain showers and slight chance of Thunderstorms this afternoon. Waves 1 to 2 ft.
Tonight..Southeast winds 5 to 10 kt veering to west. Slight chance of rain showers and Thunderstorms in the evening, then slight chance of rain showers overnight. Waves 1 to 2 ft.
Thursday..Northeast winds 5 to 10 kt becoming north 10 to 20 kt. Patchy fog in the morning. Waves 1 to 3 ft.
Thursday night..Northeast winds 10 to 20 kt becoming east. Chance of rain showers overnight. Waves 2 to 4 ft.
Friday..Southeast winds 10 to 20 kt backing to northwest 15 to 25 kt. Chance of rain showers in the morning, then rain showers likely in the afternoon. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
Friday night..North winds to 30 kt. Waves 5 to 8 ft occasionally to 10 ft.
Saturday..North winds 10 to 20 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
Sunday..Southeast winds 10 to 15 kt. Waves 1 to 3 ft.