fzus63 kdtx 251339
glflh 
expires:202510252145;;737959

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 am edt sat oct 25 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...high pressure, 30.40 inches, will remain over the
central great lakes through the weekend leading to light winds.


lhz361-252145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
939 am edt sat oct 25 2025

.rest of today...north winds 5 to 10 knots late in the morning
becoming light and variable. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.sunday...light and variable winds becoming southeast 5 to
10 knots early in the afternoon. waves 2 feet or less. 
.sunday night...southeast winds 5 to 10 knots. waves 2 feet or
less. 
.monday...east winds 5 to 10 knots increasing to 15 to 20 knots.
waves 2 feet or less building to 2 to 4 feet. 
.tuesday...east winds 15 to 20 knots decreasing to 10 to 15 knots
in the late evening and early morning. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.wednesday...east winds 10 to 15 knots becoming northeast 5 to
10 knots until early morning. waves 2 to 4 feet subsiding to 1 to
3 feet until early morning. 


$$

fzus63 kdtx 251339
glflh 
expires:202510252145;;737960

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 am edt sat oct 25 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...high pressure, 30.40 inches, will remain over the
central great lakes through the weekend leading to light winds.


lhz362-363-462-252145-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
939 am edt sat oct 25 2025

.rest of today...northwest winds 5 to 10 knots. waves 1 to
3 feet. 
.tonight...north winds 5 to 10 knots. waves 2 feet or less. 
.sunday...northeast winds 5 to 10 knots veering to the east early
in the afternoon. waves 2 feet or less. 
.sunday night...east winds 5 to 10 knots. waves 2 feet or less. 
.monday...east winds 10 to 15 knots increasing to 15 to 20 knots
late in the evening. waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday...east winds 15 to 20 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.wednesday...northeast winds 10 to 15 knots. waves 3 to 5 feet. 


$$

fzus63 kmkx 251403
glflm 
expires:202510252130;;738727

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt sat oct 25 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 around 30.4 inches will continue to move east of the
region today and tonight, with southwest to south winds over the
north half of the lake and southeast to east winds to the south.
the high will move into southeast canada into early next week,
strengthening to around 30.6 inches. meanwhile, weak low pressure
around 29.8 inches will pass to the southwest of lake michigan,
bringing a period of gusty east to southeast winds sunday into
tuesday, becoming more east to northeast by wednesday.


lmz261-362-364-366-563-565-567-868-252130-
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-
903 am cdt sat oct 25 2025

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 5 to 10 kt becoming south.
scattered sprinkles this afternoon. waves 1 ft or less. 
.tonight...south winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.sunday...southeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft. 
.sunday night...southeast winds 10 to 20 kt. waves 3 to 5 ft
building to 4 to 6 ft occasionally to 8 ft. 
.monday...southeast winds 10 to 20 kt becoming east 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.monday night...southeast winds to 30 kt. waves 6 to 9 ft
occasionally to 12 ft. 
.tuesday...southeast winds 15 to 25 kt becoming east. waves 6 to
9 ft occasionally to 12 ft. 
.wednesday...east winds 10 to 20 kt becoming northeast. waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.  

$$

fzus63 kmkx 251403
glflm 
expires:202510252130;;738728

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt sat oct 25 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 around 30.4 inches will continue to move east of the
region today and tonight, with southwest to south winds over the
north half of the lake and southeast to east winds to the south.
the high will move into southeast canada into early next week,
strengthening to around 30.6 inches. meanwhile, weak low pressure
around 29.8 inches will pass to the southwest of lake michigan,
bringing a period of gusty east to southeast winds sunday into
tuesday, becoming more east to northeast by wednesday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-252130-
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-
903 am cdt sat oct 25 2025

sheboygan wi to pentwater mi south...

.rest of today...southeast winds 5 to 10 kt becoming east.
scattered rain showers this afternoon. waves 1 ft or less. 
.tonight...east winds 10 to 15 kt becoming southeast. scattered
sprinkles in the evening. waves 1 to 3 ft. 
.sunday...southeast winds 10 to 20 kt becoming east. waves 3 to
5 ft. 
.sunday night...east winds 15 to 25 kt becoming southeast. waves
5 to 8 ft occasionally to 10 ft. 
.monday...east winds 15 to 25 kt. waves 5 to 8 ft occasionally to
10 ft. 
.monday night...east winds to 30 kt. waves 8 to 11 ft
occasionally to 14 ft. 
.tuesday...east winds to 30 kt. waves 8 to 11 ft occasionally to
14 ft. 
.wednesday...east winds to 30 kt becoming northeast 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmqt 251401
glfls 
expires:202510252000;;738594

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat oct 25 2025

for waters beyond 5 nautical miles of shore on lake superior.

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...

a 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches through early next week. ridging over 
lake superior looks to weaken to around 30.2 inches during the 
middle of next week as low pressure develops south of the great 
lakes, but model spread is high on the track and intensity of the 
low.



lsz162-252000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt sat oct 25 2025 /901 am cdt sat oct 25 2025/

.rest of today...south winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing southeast late. waves
calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots veering south after
midnight. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots backing southeast in the
afternoon. waves calm to 2 feet. 
.sunday night...south winds 10 to 20 knots. waves building to
1 to 3 feet. 
.monday...southeast winds 10 to 20 knots backing east by mid
afternoon. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.monday night...southeast winds 15 to 25 knots. waves building to
2 to 4 feet. 
.tuesday...east winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.wednesday...east winds 5 to 15 knots veering west. waves calm to
2 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202510252000;;738595

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat oct 25 2025

for waters beyond 5 nautical miles of shore on lake superior.

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...

a 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches through early next week. ridging over 
lake superior looks to weaken to around 30.2 inches during the 
middle of next week as low pressure develops south of the great 
lakes, but model spread is high on the track and intensity of the 
low.



lsz263-252000-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1001 am edt sat oct 25 2025

.rest of today...south winds 5 to 15 knots backing southeast
late. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots backing southeast late. waves
calm to 2 feet. 
.sunday night...south winds 10 to 20 knots. waves building to
1 to 3 feet. 
.monday...south winds 10 to 20 knots becoming southeast 15 to
25 knots by mid afternoon. waves building to 2 to 4 feet. 
.monday night...southeast winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.tuesday...southeast winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.wednesday...east winds 5 to 15 knots becoming west 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202510252000;;738596

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat oct 25 2025

for waters beyond 5 nautical miles of shore on lake superior.

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...

a 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches through early next week. ridging over 
lake superior looks to weaken to around 30.2 inches during the 
middle of next week as low pressure develops south of the great 
lakes, but model spread is high on the track and intensity of the 
low.



lsz264-252000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt sat oct 25 2025

.rest of today...south winds 5 to 15 knots. waves calm to 2 feet.
.tonight...south winds 5 to 15 knots veering southwest late.
waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots becoming southeast 10 to
20 knots late. waves building to 1 to 3 feet. 
.sunday night...south winds 10 to 20 knots. waves building to
2 to 4 feet. 
.monday...south winds 15 to 25 knots backing southeast by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet. 
.monday night...southeast winds 15 to 25 knots. waves building to
3 to 6 feet occasionally to 8 feet. 
.tuesday...southeast winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 
.wednesday...east winds 5 to 15 knots becoming west 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202510252000;;738597

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat oct 25 2025

for waters beyond 5 nautical miles of shore on lake superior.

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...

a 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches through early next week. ridging over 
lake superior looks to weaken to around 30.2 inches during the 
middle of next week as low pressure develops south of the great 
lakes, but model spread is high on the track and intensity of the 
low.



lsz265-252000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt sat oct 25 2025

.rest of today...south winds 10 to 20 knots backing southeast
late. waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots veering southwest after
midnight. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots increasing to 15 to 25 knots
late. waves calm to 2 feet. 
.sunday night...south winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.monday...south winds 15 to 25 knots becoming southeast 20 to
30 knots by mid afternoon. waves building to 1 to 3 feet. 
.monday night...southeast winds 15 to 25 knots. waves building to
2 to 4 feet. 
.tuesday...southeast winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.wednesday...northeast winds 10 to 20 knots backing west. waves
calm to 2 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202510252000;;738598

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat oct 25 2025

for waters beyond 5 nautical miles of shore on lake superior.

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...

a 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches through early next week. ridging over 
lake superior looks to weaken to around 30.2 inches during the 
middle of next week as low pressure develops south of the great 
lakes, but model spread is high on the track and intensity of the 
low.



lsz266-252000-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1001 am edt sat oct 25 2025

.rest of today...south winds 10 to 20 knots. waves calm to
2 feet. 
.tonight...south winds 10 to 20 knots. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots increasing to 15 to 25 knots
late. waves building to 1 to 3 feet. 
.sunday night...south winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves building to 2 to 4 feet. 
.monday...south winds 10 to 20 knots becoming southeast 15 to
25 knots by mid afternoon. waves 2 to 4 feet. 
.monday night...southeast winds 15 to 25 knots. waves building to
3 to 6 feet occasionally to 8 feet. 
.tuesday...southeast winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.wednesday...east winds 5 to 15 knots becoming west 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202510252000;;738599

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat oct 25 2025

for waters beyond 5 nautical miles of shore on lake superior.

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...

a 30.3 to 30.4 inch ridge persists over lake superior through 
tuesday as high pressure over the great lakes shifts over quebec and 
strengthens to 30.5 inches through early next week. ridging over 
lake superior looks to weaken to around 30.2 inches during the 
middle of next week as low pressure develops south of the great 
lakes, but model spread is high on the track and intensity of the 
low.



lsz267-252000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt sat oct 25 2025

.rest of today...south winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing southeast late. waves
calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots veering south after
midnight. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots backing southeast late.
waves calm to 2 feet. 
.sunday night...south winds 10 to 20 knots. waves building to
1 to 3 feet. 
.monday...south winds 10 to 20 knots backing southeast by mid
afternoon. waves 1 to 3 feet. 
.monday night...southeast winds 15 to 25 knots. waves building to
2 to 4 feet. 
.tuesday...southeast winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.wednesday...east winds 10 to 20 knots backing north. waves calm
to 2 feet. 

$$