fzus63 kmkx 020909
glflm 
713 

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 am cst tue mar 2 2021

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 29.5 inches will slide by just to the north of
lake superior today, while high pressure of 30.5 inches just to
the southeast of lake michigan departs. the tight pressure
gradient between these systems will result in strong winds across
lake michigan, with the highest gusts in the north. the gale
warning has been extended a bit farther south given latest
forecast winds. 

winds will ease this evening into tonight while becoming 
northerly in advance of approaching high pressure. 

&&

lmz261-362-364-366-563-565-567-868-021645-
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-
309 am cst tue mar 2 2021

sheboygan wi to pentwater mi north...

...gale warning in effect from 8 am cst this morning through this
evening...

.today...southwest winds to 30 kt increasing to gales to 45 kt.
waves 3 to 5 ft building to 12 to 16 ft occasionally to 21 ft. 
.tonight...southwest gales to 40 kt becoming west to 30 kt late
in the evening, then diminishing to 15 to 25 kt after midnight
becoming northwest 10 to 20 kt late. waves 12 to 16 ft
occasionally to 21 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.wednesday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday night...north winds 10 to 20 kt. waves 2 to 4 ft.
.thursday...north winds 10 to 15 kt. waves 2 to 4 ft. 
.thursday night...north winds 10 to 15 kt. waves 1 to 3 ft. 
.friday...north winds 10 to 15 kt becoming northwest. waves 1 to
3 ft. 
.saturday...northwest winds 10 to 15 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 020909
glflm 

lmz080-671-673-675-777-779-872-874-876-878-021645-
lake michigan from michigan city in to st. joseph mi 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 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-
309 am cst tue mar 2 2021

port washington wi to whitehall mi south...

.today...southwest winds 15 to 25 kt increasing to up to 30 kt. 
waves 2 to 4 ft building to 8 to 11 ft occasionally to 14 ft. 
.tonight...southwest winds to 30 kt diminishing to 15 to 25 kt
after midnight, then becoming west 10 to 20 kt late. waves 8 to
11 ft occasionally to 14 ft subsiding to 4 to 6 ft occasionally
to 8 ft. 
.wednesday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday night...north winds 10 to 20 kt. waves 2 to 4 ft.
.thursday...north winds 10 to 15 kt. waves 2 to 4 ft. 
.thursday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 3 ft. 
.friday...north winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 to 3 ft. 
.saturday...northwest winds 10 to 15 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 020909
glflm 

lmz669-870-021645-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
309 am cst tue mar 2 2021

sheboygan wi to pentwater mi south to port washington wi to
whitehall mi...

...gale warning in effect from 8 am cst this morning through this
evening...

.today...southwest winds 15 to 25 kt increasing to gales to
35 kt. waves 2 to 4 ft building to 8 to 12 ft occasionally to
16 ft. 
.tonight...southwest gales to 35 kt diminishing to 30 kt late in
the evening, then becoming west 15 to 25 kt after midnight
becoming northwest 10 to 20 kt late. waves 8 to 12 ft
occasionally to 16 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.wednesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday night...north winds 10 to 20 kt. waves 2 to 4 ft.
.thursday...north winds 10 to 15 kt. waves 2 to 4 ft. 
.thursday night...north winds 10 to 15 kt. waves 1 to 3 ft. 
.friday...north winds 5 to 10 kt. waves 1 to 2 ft. 
.saturday...northwest winds 10 to 15 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 020305
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-021100-
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-
905 pm cst mon mar 1 2021

sheboygan wi to pentwater mi south...

.rest of tonight...northwest winds 10 to 20 kt becoming west 5 to
10 kt after midnight, then becoming southwest 10 to 20 kt late.
waves 3 to 5 ft subsiding to 1 to 3 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to 30 kt. waves
3 to 5 ft building to 7 to 10 ft occasionally to 13 ft. 
.tuesday night...southwest winds to 30 kt becoming west 15 to
25 kt after midnight, then becoming northwest 10 to 20 kt late.
waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.wednesday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 2 to 4 ft. 
.wednesday night...north winds 10 to 20 kt. waves 2 to 4 ft.
.thursday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 2 to 4 ft. 
.thursday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 3 ft. 
.friday...north winds 10 to 15 kt. waves 1 to 3 ft. 
.saturday...northwest winds 10 to 20 kt becoming north. waves
2 to 4 ft.  

$$