fzus63 kmkx 171351
glflm 
expires:202606172115;;899022

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 am cdt wed jun 17 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...

southwesterly winds will back south and increase through this
morning as low pressure around 29.2 inches tracks eastward across
southern mn. winds will continue to back to southeasterly this 
afternoon, with a few gusts to gale force possible over southern 
portions of the lake. low pressure will cross the lake this 
evening, leaving gusty west winds over the southern half of the 
lake tonight and a northwest breeze for the north half. showers 
and thunderstorms are expected across the lake midday through 
this evening. a few strong to severe storms will be possible over 
southern portions of the lake this afternoon and evening.

winds will all shift to northwesterly thursday morning, becoming 
lighter and westerly by the afternoon as the low pressure system 
continues eastward. modest west winds are then expected friday
into the weekend as high pressure around 30.0 inches builds into 
the midwest.


lmz261-362-364-366-563-565-567-868-172115-
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-
851 am cdt wed jun 17 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds less than 10 kt becoming south
10 to 15 kt late this morning, then increasing to 15 to 25 kt
early this afternoon becoming east to 30 kt late. showers and
slight chance of thunderstorms this afternoon. waves 1 to 3 ft
building to 4 to 6 ft occasionally to 8 ft. 
.tonight...east winds 15 to 25 kt backing to north. showers in
the evening, then chance of showers overnight. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.thursday...northwest winds 15 to 25 kt becoming west. chance of
showers in the morning. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.thursday night...west winds 10 to 20 kt. waves 1 to 3 ft. 
.friday...northwest winds 10 to 20 kt becoming west 15 to 25 kt.
waves 2 to 4 ft. 
.friday night...west winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 1 to
2 ft. 
.sunday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 1 to 3 ft.  

$$

fzus63 kmkx 171351
glflm 
expires:202606172115;;899023

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 am cdt wed jun 17 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...

southwesterly winds will back south and increase through this
morning as low pressure around 29.2 inches tracks eastward across
southern mn. winds will continue to back to southeasterly this 
afternoon, with a few gusts to gale force possible over southern 
portions of the lake. low pressure will cross the lake this 
evening, leaving gusty west winds over the southern half of the 
lake tonight and a northwest breeze for the north half. showers 
and thunderstorms are expected across the lake midday through 
this evening. a few strong to severe storms will be possible over 
southern portions of the lake this afternoon and evening.

winds will all shift to northwesterly thursday morning, becoming 
lighter and westerly by the afternoon as the low pressure system 
continues eastward. modest west winds are then expected friday
into the weekend as high pressure around 30.0 inches builds into 
the midwest.


lmz080-669-671-673-675-777-779-870-872-874-876-878-172115-
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-
851 am cdt wed jun 17 2026

sheboygan wi to pentwater mi south...

.rest of today...southwest winds 10 to 15 kt becoming south 10 to
20 kt late this morning, then becoming southeast to 30 kt this
afternoon. rain through mid morning, then showers, chance of
thunderstorms and rain this afternoon. waves 1 to 3 ft building
to 5 to 8 ft occasionally to 10 ft. 
.tonight...southeast winds to 30 kt veering to west. chance of
showers and thunderstorms in the evening, then chance of showers
overnight. waves 5 to 8 ft occasionally to 10 ft. 
.thursday...northwest winds to 30 kt becoming west 10 to 20 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.thursday night...west winds 10 to 20 kt. waves 2 to 4 ft. 
.friday...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.friday night...west winds 10 to 15 kt. waves 1 to 2 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 1 to
2 ft. 
.sunday...east winds 10 to 15 kt becoming northeast 15 to 25 kt.
chance of showers. waves 1 to 2 ft building to 2 to 4 ft.  

$$