fzus63 kmkx 151407
glflm 
expires:202603152130;;717923

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 am 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...

no major changes to the synopsis this morning as forecast detail
remain on track.

deepening low pressure of 29.3 inches currently over northern
missouri, will swing northeastward through the rest of this 
morning into southern wisconsin by this afternoon, bringing 
easterly to southeasterly gales across the lake this morning into 
midday. as low pressure crosses southern lake michigan this 
evening, winds will briefly lower across the southern two thirds, 
while northerly storm force winds develop across the northern 
third. northerly storm force winds will spread southward through 
the middle third of lake michigan as low pressure deepens to 29.1 
inches over lower michigan this evening, while gales continue 
across the southern third. 

winds shift to northwesterly into monday morning, with storm 
force winds across the northern two thirds and gales across the 
southern third through monday evening. expect winds to slowly 
diminish as low pressure exits monday night into tuesday morning. 
heavy freezing spray is also expected to develop monday morning as
arctic air pushes southward through the lake, continuing through 
midday tuesday. winds then shift to southeasterly ahead of an 
approaching weak low around 29.7 inches tuesday afternoon into 
tuesday night.

heavy snow is expected across the northern half of the lake
throughout today, transitioning to sleet and freezing rain this
afternoon. a few thunderstorms are possible across the southern
half of the lake this afternoon. freezing rain and sleet will then
spread through the remainder of the lake overnight as
thunderstorms end, with a return to heavy snow into monday
morning. snow will taper off midday monday.


lmz261-362-364-366-563-565-567-868-152130-
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-
907 am 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...

.rest of today...east gales to 40 kt becoming northeast storm
force winds to 50 kt. snow and sleet with rain likely through mid
morning, then snow, rain, sleet and slight chance of freezing
rain this afternoon. visibility one quarter mile or less at times
this afternoon. waves 8 to 11 ft occasionally to 14 ft building
to 12 to 16 ft occasionally to 21 ft. 
.tonight...northeast storm force winds to 50 kt becoming north.
sleet, snow, rain and freezing rain in the evening, then snow,
sleet, freezing rain and rain overnight. visibility one quarter
mile or less at times in the evening. waves 15 to 20 ft
occasionally to 26 ft. 
.monday...north storm force winds to 50 kt becoming northwest.
visibility one quarter mile or less at times. snow. waves 15 to
20 ft occasionally to 26 ft. 
.monday night...northwest storm force winds to 50 kt diminishing
to gales to 40 kt overnight. chance of snow. visibility one
quarter mile or less at times in the evening. waves 14 to 18 ft
occasionally to 23 ft subsiding to 12 to 16 ft occasionally to
21 ft. 
.tuesday...northwest gales to 35 kt becoming west 15 to 25 kt in
the afternoon. heavy freezing spray in the morning. waves 8 to
12 ft occasionally to 16 ft subsiding to 4 to 7 ft occasionally
to 9 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming south to
30 kt. chance of snow. waves 2 to 4 ft building to 5 to 8 ft
occasionally to 10 ft. 
.wednesday...south winds to 30 kt diminishing to 15 to 25 kt.
chance of snow. waves 7 to 10 ft occasionally to 13 ft. 
.thursday...west winds 10 to 20 kt becoming northwest 10 to
15 kt. waves 3 to 5 ft.  

$$

fzus63 kmkx 151407
glflm 
expires:202603152130;;717924

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 am 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...

no major changes to the synopsis this morning as forecast detail
remain on track.

deepening low pressure of 29.3 inches currently over northern
missouri, will swing northeastward through the rest of this 
morning into southern wisconsin by this afternoon, bringing 
easterly to southeasterly gales across the lake this morning into 
midday. as low pressure crosses southern lake michigan this 
evening, winds will briefly lower across the southern two thirds, 
while northerly storm force winds develop across the northern 
third. northerly storm force winds will spread southward through 
the middle third of lake michigan as low pressure deepens to 29.1 
inches over lower michigan this evening, while gales continue 
across the southern third. 

winds shift to northwesterly into monday morning, with storm 
force winds across the northern two thirds and gales across the 
southern third through monday evening. expect winds to slowly 
diminish as low pressure exits monday night into tuesday morning. 
heavy freezing spray is also expected to develop monday morning as
arctic air pushes southward through the lake, continuing through 
midday tuesday. winds then shift to southeasterly ahead of an 
approaching weak low around 29.7 inches tuesday afternoon into 
tuesday night.

heavy snow is expected across the northern half of the lake
throughout today, transitioning to sleet and freezing rain this
afternoon. a few thunderstorms are possible across the southern
half of the lake this afternoon. freezing rain and sleet will then
spread through the remainder of the lake overnight as
thunderstorms end, with a return to heavy snow into monday
morning. snow will taper off midday monday.


lmz669-671-870-872-152130-
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-
907 am 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...

.rest of today...east gales to 40 kt becoming southeast gales to
35 kt. chance of rain through mid morning, then rain this
afternoon. waves 10 to 14 ft occasionally to 18 ft subsiding to
8 to 11 ft occasionally to 14 ft. 
.tonight...north gales to 40 kt becoming northwest gales to
45 kt. rain and freezing rain in the evening, then rain, snow and
freezing rain overnight. waves 12 to 16 ft occasionally to 21 ft
building to 15 to 20 ft occasionally to 26 ft. 
.monday...northwest gales to 45 kt. freezing spray. snow. waves
15 to 20 ft occasionally to 26 ft. 
.monday night...northwest gales to 45 kt diminishing to gales to
35 kt overnight. 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 10 to 14 ft occasionally to 18 ft subsiding to
6 to 9 ft occasionally to 12 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming south to
30 kt. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.wednesday...south winds to 30 kt diminishing to 15 to 25 kt.
chance of snow. waves 7 to 10 ft occasionally to 13 ft. 
.thursday...west winds 10 to 20 kt becoming northwest 10 to
15 kt. waves 3 to 5 ft.  

$$

fzus63 kmkx 151407
glflm 
expires:202603152130;;717925

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 am 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...

no major changes to the synopsis this morning as forecast detail
remain on track.

deepening low pressure of 29.3 inches currently over northern
missouri, will swing northeastward through the rest of this 
morning into southern wisconsin by this afternoon, bringing 
easterly to southeasterly gales across the lake this morning into 
midday. as low pressure crosses southern lake michigan this 
evening, winds will briefly lower across the southern two thirds, 
while northerly storm force winds develop across the northern 
third. northerly storm force winds will spread southward through 
the middle third of lake michigan as low pressure deepens to 29.1 
inches over lower michigan this evening, while gales continue 
across the southern third. 

winds shift to northwesterly into monday morning, with storm 
force winds across the northern two thirds and gales across the 
southern third through monday evening. expect winds to slowly 
diminish as low pressure exits monday night into tuesday morning. 
heavy freezing spray is also expected to develop monday morning as
arctic air pushes southward through the lake, continuing through 
midday tuesday. winds then shift to southeasterly ahead of an 
approaching weak low around 29.7 inches tuesday afternoon into 
tuesday night.

heavy snow is expected across the northern half of the lake
throughout today, transitioning to sleet and freezing rain this
afternoon. a few thunderstorms are possible across the southern
half of the lake this afternoon. freezing rain and sleet will then
spread through the remainder of the lake overnight as
thunderstorms end, with a return to heavy snow into monday
morning. snow will taper off midday monday.


lmz080-673-675-777-779-874-876-878-152130-
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-
907 am 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...

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

$$