fzus63 kmkx 251354
glflm 
expires:202604260315;;499162

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
854 am cdt sat apr 25 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...

high pressure around 30.1 inches over the area will continue to
bring northerly winds of 10 to 20 knots through today. tonight, 
east winds develop as high pressure exits and low pressure 
develops in the central plains. winds become northeasterly into 
sunday as low pressure around 29.4 inches lifts into the missouri 
river valley. low pressure will continue to lift northward into 
minnesota on monday, bringing gusty southeast winds monday through
monday night. currently not expecting widespread gales, but 
potential for a few gales does exist monday afternoon into monday 
night. a few severe storms may develop across the southern half of
the lake monday night, with hail and wind the main threats. winds
will shift to become southwesterly into tuesday as low pressure 
exits into ontario. tuesday afternoon into tuesday night, winds 
shift to become northwesterly as a cold front works its way 
through the region.


lmz261-362-364-366-563-565-567-868-260315-
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-
854 am cdt sat apr 25 2026

sheboygan wi to pentwater mi north...

.tonight...northeast winds 10 to 20 kt diminishing to 10 to 15 kt
late this evening, then becoming east 5 to 10 kt overnight. waves
1 to 3 ft subsiding to 1 to 2 ft. 
.sunday...southeast winds 5 to 10 kt becoming northeast 10 to
15 kt. waves 1 to 2 ft. 
.sunday night...northeast winds 10 to 15 kt becoming southeast
10 to 20 kt. waves 1 to 2 ft building to 3 to 5 ft. 
.monday...southeast winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft building to 5 to 8 ft occasionally
to 10 ft. 
.monday night...southeast gales to 40 kt becoming south. rain
showers with a chance of thunderstorms. waves 8 to 11 ft
occasionally to 14 ft. 
.tuesday...southwest gales to 35 kt diminishing to 30 kt. chance
of rain showers in the morning. waves 7 to 10 ft occasionally to
13 ft subsiding to 4 to 7 ft occasionally to 9 ft. 
.tuesday night...northwest winds to 30 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.wednesday...northwest winds 10 to 20 kt. waves 1 to 3 ft. 
.thursday...northwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 251354
glflm 
expires:202604260315;;499163

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
854 am cdt sat apr 25 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...

high pressure around 30.1 inches over the area will continue to
bring northerly winds of 10 to 20 knots through today. tonight, 
east winds develop as high pressure exits and low pressure 
develops in the central plains. winds become northeasterly into 
sunday as low pressure around 29.4 inches lifts into the missouri 
river valley. low pressure will continue to lift northward into 
minnesota on monday, bringing gusty southeast winds monday through
monday night. currently not expecting widespread gales, but 
potential for a few gales does exist monday afternoon into monday 
night. a few severe storms may develop across the southern half of
the lake monday night, with hail and wind the main threats. winds
will shift to become southwesterly into tuesday as low pressure 
exits into ontario. tuesday afternoon into tuesday night, winds 
shift to become northwesterly as a cold front works its way 
through the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-260315-
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-
854 am cdt sat apr 25 2026

sheboygan wi to pentwater mi south...

.tonight...north winds 10 to 20 kt veering to east 10 to 15 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.sunday...east winds 10 to 15 kt becoming northeast. waves 1 to
3 ft. 
.sunday night...northeast winds 10 to 15 kt becoming southeast
10 to 20 kt. waves 1 to 2 ft building to 3 to 5 ft. 
.monday...southeast winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft building to 6 to 9 ft occasionally
to 12 ft. 
.monday night...southeast gales to 40 kt becoming south. showers
with a chance of thunderstorms in the evening, then showers
overnight. waves 7 to 10 ft occasionally to 13 ft. 
.tuesday...southwest winds to 30 kt becoming west 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.tuesday night...northwest winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.wednesday...north winds 10 to 20 kt. waves 1 to 3 ft. 
.thursday...north winds 10 to 15 kt. waves 1 to 2 ft.  

$$