fzus63 kdtx 151437
glflh 
expires:202512152245;;627946

open lake forecast for lake huron
national weather service detroit/pontiac mi
937 am est mon dec 15 2025

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...low pressure, 29.90 inches, over northeastern 
ontario will drag a cold front across the central great lakes 
region today. weak high pressure, 30.20 inches will move across 
the region early tuesday before a stronger system approaches from 
the west late tuesday into wednesday. a even stronger system will 
affect the region thursday into friday.



lhz361-152245-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
937 am est mon dec 15 2025

.rest of today...southwest winds 20 to 25 knots becoming west
15 to 20 knots in the afternoon. snow showers late in the
morning. waves 4 to 6 feet. 
.tonight...west winds 10 to 15 knots decreasing to 5 to 10 knots
after midnight. waves 3 to 5 feet subsiding to 1 to 3 feet after
midnight. waves occasionally around 8 feet. 
.tuesday...south winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. waves 1 to 3 feet
building to 3 to 5 feet in the late morning and afternoon. 
.tuesday night...south winds 15 to 20 knots becoming southwest
20 to 25 knots with gusts to around 30 knots in the late evening
and overnight. waves 6 to 9 feet. waves occasionally around
12 feet. 
.wednesday...west winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots late in the morning...then
becoming south 15 to 20 knots with gusts to around 30 knots late
in the evening. a chance of rain late in the evening. waves 6 to
9 feet subsiding to 2 to 4 feet late in the afternoon...then
building to 8 to 12 feet late in the evening. waves occasionally
around 15 feet. 
.thursday...south winds 15 to 20 knots with gusts to around
30 knots increasing to 20 to 25 knots with gusts to 35 knot gales
early in the evening...then becoming west to 30 knots with gusts
to 35 knot gales in the late evening and early morning. rain. a
chance of snow until early morning. a chance of rain in the late
evening and early morning. freezing spray in the late evening and
early morning. waves 12 to 16 feet. waves occasionally around
20 feet. 
.friday...northwest winds 20 to 25 knots with gusts to 35 knot
gales decreasing to 10 to 15 knots until early evening...then
becoming south 15 to 20 knots in the late evening and early
morning. freezing spray early in the morning. a chance of until
early evening. snow likely in the late evening and early morning.
waves 10 to 14 feet subsiding to 6 to 9 feet in the late morning
and early afternoon...then subsiding to 2 to 4 feet early in the
evening building to 6 to 9 feet in the late evening and early
morning. waves occasionally around 18 feet. 


$$

fzus63 kdtx 151437
glflh 
expires:202512152245;;627947

open lake forecast for lake huron
national weather service detroit/pontiac mi
937 am est mon dec 15 2025

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...low pressure, 29.90 inches, over northeastern 
ontario will drag a cold front across the central great lakes 
region today. weak high pressure, 30.20 inches will move across 
the region early tuesday before a stronger system approaches from 
the west late tuesday into wednesday. a even stronger system will 
affect the region thursday into friday.



lhz362-152245-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
937 am est mon dec 15 2025

...gale watch in effect from late tuesday night through wednesday
morning...

.rest of today...southwest winds 20 to 25 knots with gusts to
around 30 knots decreasing to 15 to 20 knots late in the
afternoon. snow showers late in the morning...then a chance of
snow showers in the afternoon. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.tonight...west winds 15 to 20 knots decreasing to 10 to 15 knots
in the late evening and overnight. a chance of snow showers in
the evening. waves 5 to 7 feet subsiding to 2 to 4 feet early in
the morning. waves occasionally around 10 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 30 knots
with gusts to 35 knot gales. waves 3 to 5 feet building to 8 to
12 feet in the late morning and afternoon. waves occasionally
around 15 feet. 
.tuesday night...south winds to 30 knots with gusts to 35 knot
gales becoming southwest 20 to 25 knots with gusts to around
30 knots in the late evening and overnight. waves 10 to 14 feet.
waves occasionally around 18 feet. 
.wednesday...west winds 20 to 25 knots decreasing to 15 to
20 knots late in the morning...then decreasing to 10 to 15 knots
late in the afternoon becoming south to 30 knots with gusts to
35 knot gales late in the evening. waves 8 to 12 feet subsiding
to 4 to 6 feet late in the afternoon...then building to 10 to
14 feet late in the evening. waves occasionally around 18 feet. 
.thursday...south winds to 30 knots becoming west at 35 knot
gales in the late evening and early morning. gusts to 40 knot
gales. rain. a chance of snow until early morning. freezing spray
in the late evening and early morning. waves 15 to 20 feet. waves
occasionally around 25 feet. a gale warning may be needed. 
.friday...northwest at 35 knot gales with gusts to 40 knot gales
decreasing to 15 to 20 knots with gusts to around 30 knots until
early evening...then becoming south to 30 knots with gusts to
35 knot gales in the late evening and early morning. freezing
spray until afternoon. a chance of until early evening...then
freezing spray in the late evening and early morning. a chance of
snow in the late evening and early morning. waves 14 to 18 feet
subsiding to 5 to 7 feet early in the evening...then building to
8 to 12 feet in the late evening and early morning. waves
occasionally around 23 feet. 


$$

fzus63 kdtx 151437
glflh 
expires:202512152245;;627948

open lake forecast for lake huron
national weather service detroit/pontiac mi
937 am est mon dec 15 2025

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...low pressure, 29.90 inches, over northeastern 
ontario will drag a cold front across the central great lakes 
region today. weak high pressure, 30.20 inches will move across 
the region early tuesday before a stronger system approaches from 
the west late tuesday into wednesday. a even stronger system will 
affect the region thursday into friday.



lhz363-462-152245-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
937 am est mon dec 15 2025

...gale watch in effect from tuesday afternoon through late
tuesday night...

.rest of today...southwest winds to 30 knots decreasing to 20 to
25 knots late in the afternoon. gusts to 35 knot gales. snow
showers. freezing spray. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.tonight...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late evening and overnight. a chance of snow
showers in the evening. waves 5 to 7 feet subsiding to 2 to
4 feet after midnight. waves occasionally around 10 feet. 
.tuesday...southwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 35 knot gales in the late morning and
afternoon. waves 3 to 5 feet building to 8 to 12 feet in the late
morning and afternoon. waves occasionally around 15 feet. 
.tuesday night...southwest winds to 30 knots decreasing to 20 to
25 knots after midnight. gusts to 35 knot gales. waves 10 to
14 feet. waves occasionally around 18 feet. 
.wednesday...west winds 20 to 25 knots decreasing to 10 to
15 knots late in the morning...then backing to the south late in
the afternoon increasing to 30 knots with gusts to 35 knot gales
late in the evening. waves 6 to 9 feet subsiding to 4 to 6 feet
late in the afternoon...then building to 10 to 14 feet late in
the evening. waves occasionally around 18 feet. 
.thursday...south winds to 30 knots becoming west at 35 knot
gales in the late evening and early morning. gusts to 40 knot
gales. rain. a chance of snow until early morning. waves 14 to
18 feet. waves occasionally around 23 feet. a gale warning may be
needed. 
.friday...west at 35 knot gales with gusts to 40 knot gales
becoming northwest 20 to 25 knots with gusts to around 30 knots
in the late morning and early afternoon...then decreasing to
15 to 20 knots early in the evening becoming southwest 20 to
25 knots with gusts to around 30 knots in the late evening and
early morning. freezing spray until afternoon. a chance of snow
in the late evening and early morning. waves 14 to 18 feet
subsiding to 8 to 12 feet until early morning. waves occasionally
around 23 feet. 


$$

fzus63 kmkx 151452
glflm 
expires:202512152245;;628239

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
852 am cst mon dec 15 2025

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...

high pressure of 30.6 inches over the ohio river valley will build
southward to the southeast u.s. this afternoon through tuesday.
meanwhile, weak low pressure of 29.9 inches over lake superior
will continue to bring southwesterly gales across primarily the 
eastern half of the open waters into midday (gale warning in 
effect through noon cst), as well as moderate freezing spray. 
winds will shift to westerly and diminish to become light by this
evening.

strong low pressure around 29.0 inches tracks eastward across
ontario canada on tuesday, bringing another period of gusty 
southwesterly winds. a gale watch is in effect for the northern 
third of the open waters tuesday afternoon through late tuesday 
night, where 40 kt gales are expected. isolated gales are possible
to the south of the watch. a cold front crosses the lake late 
tuesday night, veering winds due westerly and leading to lighter
winds.

another strong low pressure system is expected to track eastward 
along the canadian border midweek, crossing lake superior 
thursday. strong south winds with likely gales will develop across
lake michigan wednesday night. an additional cold front crosses 
the lake late thursday morning, bringing west-northwesterly gales
thursday afternoon through thursday night before diminishing again
friday.


lmz261-362-364-563-152245-
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 rock island passage to sturgeon bay wi-
852 am cst mon dec 15 2025

sturgeon bay wi to point betsie mi north...

...gale warning in effect until noon cst today...
...gale watch in effect from tuesday afternoon through late
tuesday night...

.rest of today...southwest gales to 35 kt becoming west 10 to
20 kt. freezing spray through mid morning. chance of snow showers
through mid morning, then slight chance of snow showers this
afternoon. waves 8 to 11 ft occasionally to 14 ft subsiding to
4 to 7 ft occasionally to 9 ft. 
.tonight...west winds 10 to 15 kt becoming southwest 10 to 20 kt.
waves 3 to 5 ft subsiding to 1 to 3 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to gales to
40 kt. waves 3 to 5 ft building to 10 to 14 ft occasionally to
18 ft. 
.tuesday night...southwest gales to 40 kt becoming west. waves
10 to 14 ft occasionally to 18 ft subsiding to 8 to 12 ft
occasionally to 16 ft. 
.wednesday...northwest winds to 30 kt becoming southwest 10 to
20 kt in the afternoon. waves 4 to 7 ft occasionally to 9 ft
subsiding to 2 to 4 ft. 
.wednesday night...south gales to 40 kt increasing to gales to
45 kt. chance of rain. waves 8 to 12 ft occasionally to 16 ft
building to 14 to 18 ft occasionally to 23 ft. 
.thursday...south gales to 40 kt becoming west gales to 45 kt.
rain with snow likely. waves 14 to 18 ft occasionally to 23 ft
subsiding to 10 to 14 ft occasionally to 18 ft. 
.friday...northwest winds 15 to 25 kt becoming west. waves 4 to
7 ft occasionally to 9 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmkx 151452
glflm 
expires:202512152245;;628240

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
852 am cst mon dec 15 2025

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...

high pressure of 30.6 inches over the ohio river valley will build
southward to the southeast u.s. this afternoon through tuesday.
meanwhile, weak low pressure of 29.9 inches over lake superior
will continue to bring southwesterly gales across primarily the 
eastern half of the open waters into midday (gale warning in 
effect through noon cst), as well as moderate freezing spray. 
winds will shift to westerly and diminish to become light by this
evening.

strong low pressure around 29.0 inches tracks eastward across
ontario canada on tuesday, bringing another period of gusty 
southwesterly winds. a gale watch is in effect for the northern 
third of the open waters tuesday afternoon through late tuesday 
night, where 40 kt gales are expected. isolated gales are possible
to the south of the watch. a cold front crosses the lake late 
tuesday night, veering winds due westerly and leading to lighter
winds.

another strong low pressure system is expected to track eastward 
along the canadian border midweek, crossing lake superior 
thursday. strong south winds with likely gales will develop across
lake michigan wednesday night. an additional cold front crosses 
the lake late thursday morning, bringing west-northwesterly gales
thursday afternoon through thursday night before diminishing again
friday.


lmz366-565-567-868-152245-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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-
852 am cst mon dec 15 2025

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

...gale warning in effect until noon cst today...

.rest of today...southwest gales to 35 kt diminishing to 30 kt
late this morning, then becoming west 15 to 25 kt early this
afternoon diminishing to 10 to 20 kt late. freezing spray through
mid morning. slight chance of snow showers through mid morning.
waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.tonight...west winds 10 to 15 kt becoming southwest. waves 4 to
6 ft occasionally to 8 ft subsiding to 1 to 3 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to gales to
35 kt. waves 3 to 5 ft building to 10 to 14 ft occasionally to
18 ft. 
.tuesday night...southwest gales to 35 kt becoming west to 30 kt.
waves 10 to 14 ft occasionally to 18 ft subsiding to 8 to 12 ft
occasionally to 16 ft. 
.wednesday...west winds 10 to 20 kt becoming southwest. waves
5 to 8 ft occasionally to 10 ft subsiding to 2 to 4 ft. 
.wednesday night...south gales to 40 kt increasing to gales to
45 kt. chance of rain. waves 8 to 12 ft occasionally to 16 ft
building to 14 to 18 ft occasionally to 23 ft. 
.thursday...southwest gales to 40 kt becoming west gales to
45 kt. rain with a chance of snow. waves 14 to 18 ft occasionally
to 23 ft. 
.friday...northwest winds 10 to 20 kt backing to southwest to
30 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
7 ft occasionally to 9 ft.  

$$

fzus63 kmkx 151452
glflm 
expires:202512152245;;628241

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
852 am cst mon dec 15 2025

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...

high pressure of 30.6 inches over the ohio river valley will build
southward to the southeast u.s. this afternoon through tuesday.
meanwhile, weak low pressure of 29.9 inches over lake superior
will continue to bring southwesterly gales across primarily the 
eastern half of the open waters into midday (gale warning in 
effect through noon cst), as well as moderate freezing spray. 
winds will shift to westerly and diminish to become light by this
evening.

strong low pressure around 29.0 inches tracks eastward across
ontario canada on tuesday, bringing another period of gusty 
southwesterly winds. a gale watch is in effect for the northern 
third of the open waters tuesday afternoon through late tuesday 
night, where 40 kt gales are expected. isolated gales are possible
to the south of the watch. a cold front crosses the lake late 
tuesday night, veering winds due westerly and leading to lighter
winds.

another strong low pressure system is expected to track eastward 
along the canadian border midweek, crossing lake superior 
thursday. strong south winds with likely gales will develop across
lake michigan wednesday night. an additional cold front crosses 
the lake late thursday morning, bringing west-northwesterly gales
thursday afternoon through thursday night before diminishing again
friday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-152245-
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-
852 am cst mon dec 15 2025

sheboygan wi to pentwater mi south...

...gale warning in effect until noon cst today...

.rest of today...southwest gales to 35 kt becoming west 15 to
25 kt. freezing spray through mid morning. waves 8 to 12 ft
occasionally to 16 ft subsiding to 7 to 10 ft occasionally to
13 ft. 
.tonight...west winds 10 to 20 kt becoming southwest 10 to 15 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.tuesday...southwest winds 10 to 20 kt increasing to 30 kt. waves
3 to 5 ft building to 10 to 14 ft occasionally to 18 ft. 
.tuesday night...southwest gales to 35 kt becoming west to 30 kt.
waves 10 to 14 ft occasionally to 18 ft. 
.wednesday...west winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to
5 ft. 
.wednesday night...south gales to 40 kt. chance of rain. waves
8 to 12 ft occasionally to 16 ft building to 12 to 16 ft
occasionally to 21 ft. 
.thursday...southwest gales to 40 kt becoming west gales to
45 kt. rain with a chance of snow. waves 14 to 18 ft occasionally
to 23 ft. 
.friday...northwest winds 15 to 25 kt becoming southwest to
30 kt. waves 8 to 12 ft occasionally to 16 ft subsiding to 4 to
7 ft occasionally to 9 ft.  

$$