fzus63 kmkx 190818
glflm 
expires:202605191530;;815093

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
318 am cdt tue may 19 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...

a dense fog advisory is in effect through this morning for the 
north half of the lake as relatively mild and humid air flows over
the cold lake waters. 

otherwise modest to breezy southerly winds continue from now into
early tuesday afternoon with scattered thunderstorms possible over
the southern two-thirds of the lake this morning. the gusty winds
will be followed by the passage of a cold front late this
afternoon as low pressure of 29.6 inches lifts from northern lake
superior to central quebec. winds will shift to northwesterly 
with the cold frontal passage and remain a bit breezy. high 
pressure around 30.4 inches will then move into the northern great
lakes for wednesday afternoon into thursday. light to modest 
north to northeast winds can be expected.


lmz261-362-364-366-563-565-567-868-191530-
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-
318 am cdt tue may 19 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until noon cdt today...

.today...south winds to 30 kt veering to west. widespread dense
fog this morning, then patchy fog this afternoon. chance of
showers and slight chance of thunderstorms this morning, then
chance of showers this afternoon. waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.tonight...northwest winds 15 to 25 kt becoming north 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.wednesday...north winds 10 to 20 kt becoming northeast 15 to
25 kt. waves 2 to 4 ft. 
.wednesday night...northeast winds 10 to 20 kt diminishing to
10 to 15 kt. waves 1 to 3 ft. 
.thursday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.thursday night...northeast winds 10 to 20 kt becoming east 10 to
15 kt. waves 1 to 3 ft. 
.friday...east winds 10 to 20 kt becoming northeast 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.saturday...northeast winds to 30 kt diminishing to 15 to 25 kt.
waves 3 to 5 ft.  

$$

fzus63 kmkx 190818
glflm 
expires:202605191530;;815094

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
318 am cdt tue may 19 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...

a dense fog advisory is in effect through this morning for the 
north half of the lake as relatively mild and humid air flows over
the cold lake waters. 

otherwise modest to breezy southerly winds continue from now into
early tuesday afternoon with scattered thunderstorms possible over
the southern two-thirds of the lake this morning. the gusty winds
will be followed by the passage of a cold front late this
afternoon as low pressure of 29.6 inches lifts from northern lake
superior to central quebec. winds will shift to northwesterly 
with the cold frontal passage and remain a bit breezy. high 
pressure around 30.4 inches will then move into the northern great
lakes for wednesday afternoon into thursday. light to modest 
north to northeast winds can be expected.


lmz080-669-671-673-675-777-779-870-872-874-876-878-191530-
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-
318 am cdt tue may 19 2026

sheboygan wi to pentwater mi south...

.today...south winds to 30 kt becoming west 15 to 25 kt. patchy
fog this morning. chance of showers and slight chance of
thunderstorms. waves 5 to 8 ft occasionally to 10 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.tonight...northwest winds 10 to 20 kt becoming north. waves 3 to
5 ft. 
.wednesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.wednesday night...northeast winds 15 to 25 kt diminishing to
10 to 20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...northeast winds 10 to 20 kt. waves 2 to 4 ft. 
.thursday night...northeast winds 10 to 20 kt becoming east.
waves 3 to 5 ft. 
.friday...east winds 10 to 20 kt becoming northeast. chance of
showers. waves 3 to 5 ft. 
.saturday...northeast winds 10 to 20 kt becoming north 10 to
15 kt. waves 2 to 4 ft.  

$$