fzus63 kmkx 291956
glflm 
expires:202603300315;;500963

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
256 pm cdt sun mar 29 2026

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...

breezy southwest winds continue through this afternoon as a cold 
front begins to approach the waters from the north. the front will 
gradually advance south across lake michigan tonight through 
tuesday. this will result in generally east-northeast winds across 
the northern half of the lake with southerly winds further south. a 
few gales are possible over southeastern lake michigan monday night, 
but aren't expected to be widespread. periods of showers and 
thunderstorms will accompany the slow-moving front, with a few 
stronger storms possible monday night and once again on tuesday. 
large hail would be the primary threat in any stronger storms.

winds will trend northerly behind the departing cold front tuesday 
evening through wednesday. will be monitoring trends for a few gusts 
approaching gale force tuesday night into wednesday, with the 
current expectation being for any such gusts to be isolated. 30.7
inch high pressure will shift from ontario to quebec through the 
late week time period as 29.8 inch low pressure builds into the 
ohio river valley, allowing winds to trend east-northeasterly. 
will need to watch for additional isolated gale potential thursday
into friday as low pressure passes near or over lake michigan, 
with the continued expectation for any gusts to be too sparse to 
justify headlines. will nevertheless be monitoring trends into 
this week. additional rain and snow will accompany the 
approaching/passing area of low pressure thursday into next 
weekend.


lmz261-362-364-366-563-565-567-868-300315-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
256 pm cdt sun mar 29 2026

sheboygan wi to pentwater mi north...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.monday...southwest winds 10 to 20 kt backing to east 10 to
15 kt. waves 2 to 4 ft. 
.monday night...northeast winds 10 to 20 kt becoming east 15 to
25 kt. chance of rain and scattered thunderstorms in the evening,
then rain likely with scattered thunderstorms overnight. waves
3 to 5 ft. 
.tuesday...east winds 10 to 20 kt backing to north. rain likely.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. 
.tuesday night...north winds 15 to 25 kt increasing to 30 kt.
waves 5 to 8 ft occasionally to 10 ft. 
.wednesday...north winds 15 to 25 kt. waves 5 to 8 ft
occasionally to 10 ft. 
.wednesday night...northeast winds to 30 kt. waves 7 to 10 ft
occasionally to 13 ft. 
.thursday...northeast winds to 30 kt. snow, rain likely with a
chance of light freezing rain. waves 8 to 11 ft occasionally to
14 ft. 
.friday...northeast winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft.  

$$

fzus63 kmkx 291956
glflm 
expires:202603300315;;500964

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
256 pm cdt sun mar 29 2026

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...

breezy southwest winds continue through this afternoon as a cold 
front begins to approach the waters from the north. the front will 
gradually advance south across lake michigan tonight through 
tuesday. this will result in generally east-northeast winds across 
the northern half of the lake with southerly winds further south. a 
few gales are possible over southeastern lake michigan monday night, 
but aren't expected to be widespread. periods of showers and 
thunderstorms will accompany the slow-moving front, with a few 
stronger storms possible monday night and once again on tuesday. 
large hail would be the primary threat in any stronger storms.

winds will trend northerly behind the departing cold front tuesday 
evening through wednesday. will be monitoring trends for a few gusts 
approaching gale force tuesday night into wednesday, with the 
current expectation being for any such gusts to be isolated. 30.7
inch high pressure will shift from ontario to quebec through the 
late week time period as 29.8 inch low pressure builds into the 
ohio river valley, allowing winds to trend east-northeasterly. 
will need to watch for additional isolated gale potential thursday
into friday as low pressure passes near or over lake michigan, 
with the continued expectation for any gusts to be too sparse to 
justify headlines. will nevertheless be monitoring trends into 
this week. additional rain and snow will accompany the 
approaching/passing area of low pressure thursday into next 
weekend.


lmz080-669-671-673-675-777-779-870-872-874-876-878-300315-
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-
256 pm cdt sun mar 29 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.monday...southwest winds 10 to 20 kt becoming south. waves 2 to
4 ft subsiding to 1 to 2 ft. 
.monday night...south winds 10 to 20 kt. chance of rain and
scattered thunderstorms in the evening, then rain likely with
scattered thunderstorms overnight. waves 2 to 4 ft building to
4 to 6 ft occasionally to 8 ft. 
.tuesday...south winds to 30 kt becoming southwest. rain likely
with scattered thunderstorms in the morning, then rain and
scattered thunderstorms in the afternoon. waves 4 to 7 ft
occasionally to 9 ft. 
.tuesday night...northwest winds 15 to 25 kt becoming north.
chance of rain and scattered thunderstorms in the evening, then
chance of rain overnight. waves 5 to 8 ft occasionally to 10 ft. 
.wednesday...north winds 15 to 25 kt increasing to 30 kt. waves
6 to 9 ft occasionally to 12 ft building to 7 to 10 ft
occasionally to 13 ft. 
.wednesday night...northeast winds to 30 kt becoming east. chance
of rain and snow. waves 8 to 12 ft occasionally to 16 ft. 
.thursday...northeast winds to 30 kt. rain and snow likely. waves
8 to 12 ft occasionally to 16 ft. 
.friday...northeast winds 10 to 20 kt. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft.  

$$