fzus63 kmkx 151949
glflm 
expires:202603160315;;734288

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt sun mar 15 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...

low pressure of 29.3 inches will approach the southern end of lake
michigan this afternoon, and pass over the southern end of the
lake by midnight cdt tonight. currently, northwest gales are
ongoing over the northern third of the lake, while a warm front
bisects the lake and causes weaker winds from midlake, southward.
a gale warning continues over all of the lake at this time.

as the surface low lifts north- northeast into lower michigan 
state, gales are expected to shift southward down the lake as 
winds become northwesterly over the more of the lake and fetch 
improves. the strong pressure gradient over the lake will allow
for very strong winds gusts over roughly the northern half of the
lake and storm force winds are anticipated from this evening into
monday afternoon. a storm warning is in effect over the northern
half of the lake. along with the high winds, colder air moving
over the lake will support heavy freezing spray over the whole
lake monday morning into tuesday, and a heavy freezing spray
warning has been issued for this time frame.

monday, northwest winds will turn northerly and northwesterly,
continuing to support storm force gusts into the afternoon. winds
should drop below storm force criteria late monday afternoon and
remain high end gales into monday evening. while the gale warning
drops off of the northern half of the lake monday night, this
segment may need to be extended, as models suggest gales may
continue over the northern half of the lake until the pre-dawn
hours of tuesday.

northwest winds then ease tuesday morning as the surface low pulls
way and surface high pressure of 30.3 inches approaches the lake.

additionally, visibility will be heavily restricted over the lake
as heavy snow moves over northern portions of lake michigan today,
and then all of the lake tonight into tomorrow morning.



lmz261-362-364-366-563-565-567-868-160315-
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-
249 pm cdt sun mar 15 2026

sheboygan wi to pentwater mi north...

...gale warning in effect until 7 pm cdt this evening...
...storm warning in effect from 7 pm cdt this evening through
monday evening...
...heavy freezing spray warning in effect from late tonight
through tuesday morning...

.tonight...northeast storm force winds to 50 kt becoming north.
snow, rain, slight chance of freezing rain and sleet this
evening, then snow, light sleet and freezing rain overnight.
visibility one quarter mile or less at times this evening. waves
14 to 18 ft occasionally to 23 ft building to 18 to 23 ft
occasionally to 30 ft. 
.monday...north storm force winds to 50 kt becoming northwest.
visibility one quarter mile or less at times. snow and slight
chance of freezing rain in the morning, then snow in the
afternoon. waves 18 to 23 ft occasionally to 30 ft. 
.monday night...northwest storm force winds to 50 kt diminishing
to gales to 40 kt. chance of snow in the evening. visibility one
quarter mile or less at times in the evening. waves 15 to 20 ft
occasionally to 26 ft subsiding to 12 to 16 ft occasionally to
21 ft. 
.tuesday...northwest gales to 35 kt becoming west 10 to 20 kt in
the afternoon. heavy freezing spray in the morning. waves 8 to
11 ft occasionally to 14 ft subsiding to 4 to 7 ft occasionally
to 9 ft. 
.tuesday night...southwest winds 10 to 20 kt increasing to 15 to
25 kt. waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft. 
.wednesday...south winds to 30 kt becoming southwest. chance of
snow. waves 6 to 9 ft occasionally to 12 ft. 
.wednesday night...southwest winds 10 to 20 kt. chance of rain
and snow. waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.thursday...northwest winds 10 to 15 kt. waves 3 to 5 ft
subsiding to 1 to 3 ft. 
.friday...south winds 10 to 20 kt becoming southwest. chance of
snow. waves 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 151949
glflm 
expires:202603160315;;734289

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt sun mar 15 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...

low pressure of 29.3 inches will approach the southern end of lake
michigan this afternoon, and pass over the southern end of the
lake by midnight cdt tonight. currently, northwest gales are
ongoing over the northern third of the lake, while a warm front
bisects the lake and causes weaker winds from midlake, southward.
a gale warning continues over all of the lake at this time.

as the surface low lifts north- northeast into lower michigan 
state, gales are expected to shift southward down the lake as 
winds become northwesterly over the more of the lake and fetch 
improves. the strong pressure gradient over the lake will allow
for very strong winds gusts over roughly the northern half of the
lake and storm force winds are anticipated from this evening into
monday afternoon. a storm warning is in effect over the northern
half of the lake. along with the high winds, colder air moving
over the lake will support heavy freezing spray over the whole
lake monday morning into tuesday, and a heavy freezing spray
warning has been issued for this time frame.

monday, northwest winds will turn northerly and northwesterly,
continuing to support storm force gusts into the afternoon. winds
should drop below storm force criteria late monday afternoon and
remain high end gales into monday evening. while the gale warning
drops off of the northern half of the lake monday night, this
segment may need to be extended, as models suggest gales may
continue over the northern half of the lake until the pre-dawn
hours of tuesday.

northwest winds then ease tuesday morning as the surface low pulls
way and surface high pressure of 30.3 inches approaches the lake.

additionally, visibility will be heavily restricted over the lake
as heavy snow moves over northern portions of lake michigan today,
and then all of the lake tonight into tomorrow morning.



lmz669-671-870-872-160315-
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 whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
249 pm cdt sun mar 15 2026

sheboygan wi to pentwater mi south to north point light wi to
grand haven mi...

...gale warning in effect until 7 pm cdt this evening...
...storm warning in effect from 7 pm cdt this evening through
monday evening...
...heavy freezing spray warning in effect from late tonight
through tuesday morning...

.tonight...north gales to 40 kt becoming northwest gales to
45 kt. rain and slight chance of snow this evening, then snow
with rain likely with freezing rain overnight. waves 12 to 16 ft
occasionally to 21 ft building to 18 to 23 ft occasionally to
30 ft. 
.monday...northwest gales to 45 kt. freezing spray in the
morning, then heavy freezing spray in the afternoon. snow in the
morning, then chance of snow in the afternoon. waves 18 to 23 ft
occasionally to 30 ft. 
.monday night...northwest gales to 45 kt diminishing to gales to
35 kt. chance of snow in the evening. heavy freezing spray. waves
15 to 20 ft occasionally to 26 ft subsiding to 12 to 16 ft
occasionally to 21 ft. 
.tuesday...northwest winds to 30 kt becoming west 15 to 25 kt.
heavy freezing spray in the morning, then freezing spray in the
afternoon. waves 8 to 11 ft occasionally to 14 ft subsiding to
5 to 8 ft occasionally to 10 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming south to
30 kt overnight. waves 3 to 5 ft building to 4 to 6 ft
occasionally to 8 ft. 
.wednesday...south winds to 30 kt. chance of snow in the morning.
waves 6 to 9 ft occasionally to 12 ft. 
.wednesday night...south winds 10 to 20 kt becoming southwest.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.thursday...northwest winds 10 to 15 kt becoming north. waves
2 to 4 ft. 
.friday...south winds 10 to 20 kt becoming southwest. waves 4 to
6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 151949
glflm 
expires:202603160315;;734290

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt sun mar 15 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...

low pressure of 29.3 inches will approach the southern end of lake
michigan this afternoon, and pass over the southern end of the
lake by midnight cdt tonight. currently, northwest gales are
ongoing over the northern third of the lake, while a warm front
bisects the lake and causes weaker winds from midlake, southward.
a gale warning continues over all of the lake at this time.

as the surface low lifts north- northeast into lower michigan 
state, gales are expected to shift southward down the lake as 
winds become northwesterly over the more of the lake and fetch 
improves. the strong pressure gradient over the lake will allow
for very strong winds gusts over roughly the northern half of the
lake and storm force winds are anticipated from this evening into
monday afternoon. a storm warning is in effect over the northern
half of the lake. along with the high winds, colder air moving
over the lake will support heavy freezing spray over the whole
lake monday morning into tuesday, and a heavy freezing spray
warning has been issued for this time frame.

monday, northwest winds will turn northerly and northwesterly,
continuing to support storm force gusts into the afternoon. winds
should drop below storm force criteria late monday afternoon and
remain high end gales into monday evening. while the gale warning
drops off of the northern half of the lake monday night, this
segment may need to be extended, as models suggest gales may
continue over the northern half of the lake until the pre-dawn
hours of tuesday.

northwest winds then ease tuesday morning as the surface low pulls
way and surface high pressure of 30.3 inches approaches the lake.

additionally, visibility will be heavily restricted over the lake
as heavy snow moves over northern portions of lake michigan today,
and then all of the lake tonight into tomorrow morning.



lmz080-673-675-777-779-874-876-878-160315-
lake michigan from michigan city in to st. joseph mi 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 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-
249 pm cdt sun mar 15 2026

north point light wi to grand haven mi south...

...gale warning in effect through tuesday morning...
...heavy freezing spray warning in effect from late tonight
through tuesday morning...

.tonight...south gales to 45 kt veering to west gales to 40 kt.
rain and slight chance of thunderstorms this evening, then snow
likely with a chance of rain overnight. waves 8 to 11 ft
occasionally to 14 ft building to 18 to 23 ft occasionally to
30 ft. 
.monday...northwest gales to 40 kt increasing to gales to 45 kt.
freezing spray. snow likely in the morning, then chance of snow
in the afternoon. waves 18 to 23 ft occasionally to 30 ft. 
.monday night...northwest gales to 40 kt diminishing to gales to
35 kt. freezing spray. chance of snow. waves 15 to 20 ft
occasionally to 26 ft subsiding to 12 to 16 ft occasionally to
21 ft. 
.tuesday...northwest winds to 30 kt becoming west 15 to 25 kt.
freezing spray. waves 8 to 12 ft occasionally to 16 ft subsiding
to 6 to 9 ft occasionally to 12 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming south to
30 kt overnight. waves 3 to 5 ft building to 4 to 6 ft
occasionally to 8 ft. 
.wednesday...south winds to 30 kt diminishing to 15 to 25 kt.
chance of snow in the morning. waves 5 to 8 ft occasionally to
10 ft. 
.wednesday night...south winds 10 to 20 kt becoming southwest.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.thursday...west winds 10 to 15 kt becoming north. waves 2 to
4 ft. 
.friday...south winds 10 to 20 kt becoming southwest. waves 3 to
5 ft.  

$$