fzus63 kmkx 031435
glflm 
expires:202602032230;;021125

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
835 am cst tue feb 3 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...

30.4 inch high pressure is centered over the upper mississippi 
river valley this morning, with 30.1 inch low pressure along the 
ontario-quebec border. placement of the two features is resulting
in generally light northerly winds across the open waters. winds 
will weaken further tonight, becoming light and variable wednesday
morning as the aforementioned area of high pressure moves across 
lake michigan. lake effect snow is possible over the southern half
of the open waters wednesday morning and afternoon. winds will 
trend west-southwesterly wednesday night into thursday as 29.5
inch low pressure moves from the canadian great plains to the 
western hudson bay. areas of snow are possible during the day on 
thursday ahead of the developing low.

low pressure will deepen further to near 29.3 inches over the 
central hudson bay thursday night, ultimately progressing into 
northern quebec during the day on friday. the low will pull a cold
front across the open waters in the process, resulting in a gusty
northwest wind shift early friday morning. a period of 
northwesterly gales remains possible during the afternoon and 
evening hours, with trends being monitored for potential headlines
in coming forecasts. areas of snow showers will continue along & 
ahead of the passing front thursday night into early friday 
morning. elevated wave heights will combine with arctic air 
settling in behind the cold front to support areas of moderate 
freezing spray friday afternoon into saturday morning. heavy 
freezing spray is possible, with the need for possible headlines 
being evaluated in coming forecasts. winds will briefly taper 
saturday afternoon as 30.4 inch high pressure crosses lake 
michigan, prior to increasing once more saturday night as the 
feature moves east of the waters.


lmz261-362-364-366-563-565-567-868-032230-
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-
835 am cst tue feb 3 2026

sheboygan wi to pentwater mi north...

.rest of today...north winds 10 to 20 kt. chance of snow. waves
3 to 5 ft. 
.tonight...north winds 10 to 15 kt becoming northwest 5 to 10 kt.
chance of snow in the evening, then slight chance of snow
overnight. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.wednesday...northwest winds 5 to 10 kt increasing to 10 to
15 kt. waves 1 to 2 ft. 
.wednesday night...northwest winds 10 to 15 kt becoming west.
waves 1 to 2 ft. 
.thursday...southwest winds 10 to 20 kt increasing to 15 to
25 kt. chance of snow. waves 2 to 4 ft building to 4 to 7 ft
occasionally to 9 ft. 
.thursday night...southwest winds to 30 kt. chance of snow. waves
4 to 7 ft occasionally to 9 ft. 
.friday...northwest gales to 35 kt becoming north. freezing 
spray. waves 6 to 9 ft occasionally to 12 ft building to 8 to 11 
ft occasionally to 14 ft. 
.saturday...northwest winds to 30 kt becoming west 15 to 25 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmkx 031435
glflm 
expires:202602032230;;021126

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
835 am cst tue feb 3 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...

30.4 inch high pressure is centered over the upper mississippi 
river valley this morning, with 30.1 inch low pressure along the 
ontario-quebec border. placement of the two features is resulting
in generally light northerly winds across the open waters. winds 
will weaken further tonight, becoming light and variable wednesday
morning as the aforementioned area of high pressure moves across 
lake michigan. lake effect snow is possible over the southern half
of the open waters wednesday morning and afternoon. winds will 
trend west-southwesterly wednesday night into thursday as 29.5
inch low pressure moves from the canadian great plains to the 
western hudson bay. areas of snow are possible during the day on 
thursday ahead of the developing low.

low pressure will deepen further to near 29.3 inches over the 
central hudson bay thursday night, ultimately progressing into 
northern quebec during the day on friday. the low will pull a cold
front across the open waters in the process, resulting in a gusty
northwest wind shift early friday morning. a period of 
northwesterly gales remains possible during the afternoon and 
evening hours, with trends being monitored for potential headlines
in coming forecasts. areas of snow showers will continue along & 
ahead of the passing front thursday night into early friday 
morning. elevated wave heights will combine with arctic air 
settling in behind the cold front to support areas of moderate 
freezing spray friday afternoon into saturday morning. heavy 
freezing spray is possible, with the need for possible headlines 
being evaluated in coming forecasts. winds will briefly taper 
saturday afternoon as 30.4 inch high pressure crosses lake 
michigan, prior to increasing once more saturday night as the 
feature moves east of the waters.


lmz080-669-671-673-675-777-779-870-872-874-876-878-032230-
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-
835 am cst tue feb 3 2026

sheboygan wi to pentwater mi south...

.rest of today...north winds 10 to 15 kt. slight chance of snow.
waves 3 to 5 ft. 
.tonight...north winds 10 to 15 kt becoming northeast 5 to 10 kt.
chance of snow. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.wednesday...north winds 5 to 10 kt becoming northwest 10 to
15 kt. waves 1 to 3 ft. 
.wednesday night...northwest winds 10 to 15 kt becoming west.
waves 1 to 2 ft. 
.thursday...southwest winds 10 to 20 kt. waves 3 to 5 ft building
to 4 to 7 ft occasionally to 9 ft. 
.thursday night...southwest winds to 30 kt becoming west. chance 
of snow and rain. waves 4 to 7 ft occasionally to 9 ft. 
.friday...northwest gales to 35 kt becoming north. waves 7 to 10 
ft occasionally to 13 ft building to 8 to 12 ft occasionally to 16
ft. 
.saturday...northwest winds to 30 kt becoming west 15 to 25 kt.
freezing spray. waves 5 to 8 ft occasionally to 10 ft subsiding
to 4 to 6 ft occasionally to 8 ft.  

$$