fzus63 kmkx 281912
glflm 
expires:202603290315;;448096

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
212 pm cdt sat mar 28 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...

widespread gales are not anticipated across the open waters through 
the duration of the forecast period. currently centered over 
indiana, 30.5 inch high pressure will advance into the mid- 
atlantic this afternoon through tonight as 29.7 inch low pressure
builds into the northern great plains, resulting in increasing 
south to southwesterly winds across lake michigan. widespread 
20-25 knot gusts are expected over the northern half of the 
waters, with a few gusts to 30 knots possible over the far 
northern lake. breezy southwest winds will continue through 
tomorrow as a cold front begins to approach the waters from the 
north. the front will gradually advance south across lake michigan
sunday night 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 evening/night, 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. 
additional rain and snow will accompany the approaching/passing 
area of low pressure thursday into next weekend.


lmz261-362-364-366-563-565-567-868-290315-
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-
212 pm cdt sat mar 28 2026

sheboygan wi to pentwater mi north...

.tonight...south winds to 30 kt becoming southwest. waves 4 to
7 ft occasionally to 9 ft. 
.sunday...southwest winds 10 to 20 kt becoming south. waves 4 to
6 ft occasionally to 8 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest. waves
3 to 5 ft. 
.monday...east winds 10 to 15 kt increasing to 10 to 20 kt. waves
2 to 4 ft. 
.monday night...east winds 10 to 20 kt becoming southeast 15 to
25 kt. rain likely. waves 3 to 5 ft building to 5 to 8 ft
occasionally to 10 ft. 
.tuesday...south winds 15 to 25 kt veering to northwest. rain
likely with a chance of thunderstorms in the morning, then rain
likely in the afternoon. waves 5 to 8 ft occasionally to 10 ft. 
.tuesday night...northwest winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft building to 8 to 11 ft occasionally to
14 ft. 
.wednesday...north winds to 30 kt diminishing to 15 to 25 kt.
waves 8 to 11 ft occasionally to 14 ft subsiding to 7 to 10 ft
occasionally to 13 ft. 
.thursday...east winds 15 to 25 kt becoming northeast. waves 5 to
8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft.  

$$

fzus63 kmkx 281912
glflm 
expires:202603290315;;448097

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
212 pm cdt sat mar 28 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...

widespread gales are not anticipated across the open waters through 
the duration of the forecast period. currently centered over 
indiana, 30.5 inch high pressure will advance into the mid- 
atlantic this afternoon through tonight as 29.7 inch low pressure
builds into the northern great plains, resulting in increasing 
south to southwesterly winds across lake michigan. widespread 
20-25 knot gusts are expected over the northern half of the 
waters, with a few gusts to 30 knots possible over the far 
northern lake. breezy southwest winds will continue through 
tomorrow as a cold front begins to approach the waters from the 
north. the front will gradually advance south across lake michigan
sunday night 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 evening/night, 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. 
additional rain and snow will accompany the approaching/passing 
area of low pressure thursday into next weekend.


lmz080-669-671-673-675-777-779-870-872-874-876-878-290315-
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-
212 pm cdt sat mar 28 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 15 to 25 kt becoming southwest. waves 4 to
6 ft occasionally to 8 ft. 
.sunday...southwest winds 15 to 25 kt becoming south 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest. waves
3 to 5 ft. 
.monday...south winds 10 to 20 kt. waves 2 to 4 ft. 
.monday night...south winds 15 to 25 kt increasing to 30 kt.
chance of rain in the evening, then chance of rain and
thunderstorms overnight. waves 3 to 5 ft building to 6 to 9 ft
occasionally to 12 ft. 
.tuesday...southwest winds to 30 kt. rain likely in the morning,
then rain with a chance of thunderstorms in the afternoon. waves
6 to 9 ft occasionally to 12 ft. 
.tuesday night...northwest winds to 30 kt becoming north. chance
of rain. waves 5 to 8 ft occasionally to 10 ft building to 8 to
11 ft occasionally to 14 ft. 
.wednesday...north winds to 30 kt diminishing to 15 to 25 kt.
waves 8 to 12 ft occasionally to 16 ft. 
.thursday...east winds to 30 kt becoming northeast 15 to 25 kt.
chance of rain and snow. waves 6 to 9 ft occasionally to 12 ft.  

$$