fzus61 kbuf 081502
glflo 
expires:202512082200;;224149

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est mon dec 8 2025

for waters beyond five nautical miles of shore on lake ontario

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 30.4 inch high will move across the lake this 
afternoon, and slide to the east tonight, and then move off the east 
coast tomorrow. a 29.5 inch low will move across the upper great 
lakes tuesday, then a stronger low averaging 29.3 inches will 
approach the region tuesday night and potentially move northwest of 
the lake wednesday. a 29.9 inch high is expected to move into the 
great lakes region thursday, followed by a 29.6 inch low which may 
approach the lake from the northwest late friday.


loz064-065-082200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est mon dec 8 2025

.this afternoon...north winds 10 knots or less becoming west.
waves 1 to 3 feet subsiding to 1 foot or less. 
.tonight...west winds 5 to 15 knots becoming south. waves 2 feet
or less. 
.tuesday...south winds 15 to 25 knots increasing to 30 knots.
snow showers likely in the afternoon. waves 2 to 4 feet building
to 6 to 9 feet. waves occasionally around 11 feet. 
.tuesday night...south winds to 30 knots becoming southwest. snow
showers in the evening, then snow and rain showers overnight.
waves 5 to 9 feet. waves occasionally around 11 feet. 
.wednesday...south winds to 30 knots becoming northwest. rain and
snow showers. waves 4 to 7 feet building to 7 to 10 feet. waves
occasionally around 13 feet. 
.thursday...northwest winds 15 to 25 knots becoming west. snow
showers likely during the day, then a chance of snow showers
thursday night. waves 5 to 8 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.friday...west winds 15 to 25 knots becoming southwest. snow
showers likely. waves 3 to 6 feet. 

$$

fzus61 kbuf 081502
glflo 
expires:202512082200;;224148

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est mon dec 8 2025

for waters beyond five nautical miles of shore on lake ontario

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 30.4 inch high will move across the lake this 
afternoon, and slide to the east tonight, and then move off the east 
coast tomorrow. a 29.5 inch low will move across the upper great 
lakes tuesday, then a stronger low averaging 29.3 inches will 
approach the region tuesday night and potentially move northwest of 
the lake wednesday. a 29.9 inch high is expected to move into the 
great lakes region thursday, followed by a 29.6 inch low which may 
approach the lake from the northwest late friday.


loz063-082200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est mon dec 8 2025

.this afternoon...north winds 5 to 10 knots becoming west. waves
1 to 3 feet subsiding to 1 foot or less. 
.tonight...west winds 5 to 15 knots becoming south. waves 2 feet
or less. 
.tuesday...south winds 15 to 25 knots. snow showers in the
afternoon. waves 2 to 4 feet building to 3 to 6 feet. 
.tuesday night...southwest winds to 30 knots diminishing to 15 to
25 knots. snow and rain showers. waves 3 to 6 feet building to
4 to 7 feet, then subsiding to 3 to 6 feet. waves occasionally
around 9 feet. 
.wednesday...south winds to 30 knots becoming northwest. rain
showers during the day, then snow and rain showers wednesday
night. waves 3 to 6 feet building to 6 to 10 feet. waves
occasionally around 13 feet. 
.thursday...northwest winds 15 to 25 knots becoming west. a
chance of snow showers. waves 5 to 8 feet subsiding to 3 to
5 feet. waves occasionally around 10 feet. 
.friday...west winds 15 to 25 knots. a chance of snow showers
during the day, then snow showers likely friday night. waves 3 to
6 feet. 

$$

fzus61 kbuf 081502
glflo 
expires:202512082200;;224147

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est mon dec 8 2025

for waters beyond five nautical miles of shore on lake ontario

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 30.4 inch high will move across the lake this 
afternoon, and slide to the east tonight, and then move off the east 
coast tomorrow. a 29.5 inch low will move across the upper great 
lakes tuesday, then a stronger low averaging 29.3 inches will 
approach the region tuesday night and potentially move northwest of 
the lake wednesday. a 29.9 inch high is expected to move into the 
great lakes region thursday, followed by a 29.6 inch low which may 
approach the lake from the northwest late friday.


loz062-082200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est mon dec 8 2025

.this afternoon...north winds 10 knots or less becoming west.
waves 2 feet or less. 
.tonight...southwest winds 5 to 15 knots becoming south. waves
2 feet or less. 
.tuesday...south winds 15 to 25 knots becoming southwest to
30 knots. snow showers in the afternoon. waves 1 to 3 feet
building to 5 to 9 feet. waves occasionally around 11 feet. 
.tuesday night...southwest winds to 30 knots diminishing to 15 to
25 knots. rain and snow showers. waves 5 to 9 feet subsiding to
3 to 6 feet. waves occasionally around 11 feet. 
.wednesday...south winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. rain showers during the day, then
snow and rain showers wednesday night. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.thursday...west winds 15 to 20 knots. a chance of snow showers.
waves 3 to 6 feet subsiding to 2 to 3 feet. 
.friday...west winds 15 to 20 knots. a chance of snow showers
during the day, then snow showers likely friday night. waves 2 to
4 feet building to 3 to 5 feet. 

$$

fzus61 kcle 081452
glfle 
expires:202512082200;;223683

open lake forecast for lake erie
national weather service cleveland oh
952 am est mon dec 8 2025

for waters beyond five nautical miles of shore on lake erie

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 over the great lakes region today will slide 
quickly eastward tonight. low pressure of 29.50 inches tracks 
through the northern great lakes on tuesday, lifting a warm front 
across lake erie. strong low pressure of 29.10 inches tracks 
through the central great lakes on wednesday, dragging a strong 
cold front eastward across lake erie during the afternoon. behind 
the front, a trough averaging 29.90 inches lingers across the 
southern great lakes through friday.


lez061-168-169-082200-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
952 am est mon dec 8 2025

.this afternoon...northeast winds 5 to 15 knots becoming east.
waves 1 to 3 feet. 
.tonight...southeast winds 5 to 15 knots becoming south. waves
1 to 3 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest to
30 knots. a chance of snow in the morning, then snow and rain in
the afternoon. waves 2 to 4 feet building to 8 to 11 feet. waves
occasionally around 14 feet. 
.tuesday night...southwest winds to 30 knots. rain and snow
likely in the evening, then rain overnight. waves 7 to 11 feet
subsiding to 6 to 9 feet. waves occasionally around 14 feet. 
.wednesday...southwest gales to 35 knots becoming northwest and
diminishing to 30 knots. rain during the day, then snow and rain
likely wednesday night. waves 10 to 15 feet subsiding to 5 to
8 feet. waves occasionally around 19 feet. 
.thursday...west winds 15 to 20 knots. a chance of snow. waves
3 to 6 feet. 
.friday...west winds 15 to 25 knots increasing to 30 knots. snow.
waves 3 to 6 feet building to 7 to 11 feet. waves occasionally
around 14 feet. 

$$

fzus61 kcle 081452
glfle 
expires:202512082200;;223681

open lake forecast for lake erie
national weather service cleveland oh
952 am est mon dec 8 2025

for waters beyond five nautical miles of shore on lake erie

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 over the great lakes region today will slide 
quickly eastward tonight. low pressure of 29.50 inches tracks 
through the northern great lakes on tuesday, lifting a warm front 
across lake erie. strong low pressure of 29.10 inches tracks 
through the central great lakes on wednesday, dragging a strong 
cold front eastward across lake erie during the afternoon. behind 
the front, a trough averaging 29.90 inches lingers across the 
southern great lakes through friday.


lez162-163-082200-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
952 am est mon dec 8 2025

.this afternoon...northeast winds 10 to 15 knots becoming east.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...southeast winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 25 knots increasing to 30 knots.
a chance of snow in the morning. waves 2 to 4 feet building to
3 to 5 feet. 
.tuesday night...southwest winds to 30 knots. rain. waves 3 to
6 feet building to 4 to 7 feet. waves occasionally around 9 feet.
.wednesday...southwest winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. rain during the day, then a chance
of snow wednesday night. waves 4 to 7 feet subsiding to 2 to
4 feet. waves occasionally around 9 feet. 
.thursday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.friday...west winds 15 to 25 knots increasing to 30 knots. a
chance of snow. waves 1 to 3 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 

$$

fzus61 kcle 081452
glfle 
expires:202512082200;;223682

open lake forecast for lake erie
national weather service cleveland oh
952 am est mon dec 8 2025

for waters beyond five nautical miles of shore on lake erie

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 over the great lakes region today will slide 
quickly eastward tonight. low pressure of 29.50 inches tracks 
through the northern great lakes on tuesday, lifting a warm front 
across lake erie. strong low pressure of 29.10 inches tracks 
through the central great lakes on wednesday, dragging a strong 
cold front eastward across lake erie during the afternoon. behind 
the front, a trough averaging 29.90 inches lingers across the 
southern great lakes through friday.


lez164>167-082200-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
952 am est mon dec 8 2025

.this afternoon...northeast winds 15 to 20 knots becoming east
10 to 15 knots. waves 2 to 4 feet. 
.tonight...east winds 10 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots increasing to 30 knots.
snow in the morning, then snow with rain likely in the afternoon.
waves 3 to 6 feet building to 8 to 11 feet. waves occasionally
around 14 feet. 
.tuesday night...southwest winds to 30 knots becoming south and
increasing to 35 knot gales overnight. a chance of rain and snow
in the evening, then rain overnight. waves 7 to 11 feet building
to 9 to 12 feet. waves occasionally around 15 feet. 
.wednesday...west gales to 40 knots becoming northwest. rain
during the day, then a chance of snow and rain likely wednesday
night. waves 10 to 14 feet subsiding to 6 to 9 feet. waves
occasionally around 18 feet. 
.thursday...west winds 15 to 25 knots. a chance of snow. waves
4 to 7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet. 
.friday...west winds 15 to 25 knots increasing to 30 knots. snow
likely. waves 3 to 6 feet building to 8 to 11 feet. waves
occasionally around 14 feet. 

$$

fzus63 kdtx 081453
glfsc 
expires:202512082300;;223749

lake st clair forecast
national weather service detroit/pontiac mi
953 am est mon dec 8 2025

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, over the midwest will
build east and reach the central great lakes this morning. the
next low pressure system will track through the northern great
lakes tonight into tuesday. an even stronger low, 29.30 inches,
is on track to move through lower michigan on on wednesday.


lcz460-082300-
lake st clair-
953 am est mon dec 8 2025

.rest of today...east winds 5 to 10 knots. partly sunny. scattered
flurries late in the morning. waves 2 feet or less.
.tonight...southeast winds 5 to 10 knots becoming south 10 to 15
knots after midnight...then becoming southwest 15 to 20 knots early
in the morning. partly cloudy. waves 2 feet or less.
.tuesday...southwest winds 20 to 25 knots. light snow until late
afternoon. light freezing rain in the late morning and early
afternoon. waves 2 to 4 feet.
.tuesday night...southwest winds 20 to 25 knots becoming south at 35
knot gales. light snow likely until early morning. rain in the late
evening and overnight. waves 3 to 5 feet. waves occasionally around
7 feet.  a gale warning may be needed.
.wednesday...southwest winds to 30 knots becoming west 20 to 25
knots in the afternoon...then becoming northwest to 30 knots in the
evening. light rain. a chance of light snow in the afternoon and
evening. waves 3 to 5 feet. waves occasionally around 7 feet.
.thursday...west winds 20 to 25 knots. partly cloudy. waves 1 to 3
feet.
.friday...west winds to 30 knots. mostly cloudy with light snow
likely. waves 2 to 4 feet.

$$

fzus63 kdtx 081453
glflh 
expires:202512082300;;223685

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 am est mon dec 8 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, over the midwest will
build east and reach the central great lakes this morning. the
next low pressure system will track through the northern great
lakes tonight into tuesday. an even stronger low, 29.30 inches,
is on track to move through lower michigan on on wednesday.


lhz361-362-082300-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
953 am est mon dec 8 2025

.rest of today...west winds 10 to 15 knots becoming southwest
5 to 10 knots early in the afternoon...then increasing to 10 to
15 knots late in the afternoon. waves 1 to 3 feet. 
.tonight...south winds 10 to 15 knots increasing to 30 knots. a
chance of snow after midnight. waves 2 to 4 feet building to 8 to
12 feet. waves occasionally around 15 feet. 
.tuesday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots early in the
afternoon. snow in the morning...then a chance of snow in the
afternoon. waves 10 to 14 feet. waves occasionally around
18 feet. 
.tuesday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots in the late evening and overnight. a chance of
snow in the evening...then rain and a chance of snow after
midnight. waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...east winds 15 to 20 knots becoming north 20 to
25 knots late in the morning...then backing to the northwest with
gusts to around 30 knots late in the afternoon decreasing to
15 to 20 knots late in the evening. snow and rain likely in the
morning...then a chance of snow late in the morning. waves 6 to
9 feet building to 8 to 12 feet late in the afternoon. waves
occasionally around 15 feet. 
.thursday...west winds 15 to 20 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.friday...west winds 15 to 20 knots increasing to 20 to 25 knots
in the late evening and early morning. a chance of snow. waves
4 to 6 feet building to 6 to 9 feet in the late evening and early
morning. waves occasionally around 12 feet. 


$$

fzus63 kdtx 081453
glflh 
expires:202512082300;;223686

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 am est mon dec 8 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, over the midwest will
build east and reach the central great lakes this morning. the
next low pressure system will track through the northern great
lakes tonight into tuesday. an even stronger low, 29.30 inches,
is on track to move through lower michigan on on wednesday.


lhz363-462>464-082300-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
953 am est mon dec 8 2025

.rest of today...north winds 5 to 10 knots veering to the south
in the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet in
the afternoon. 
.tonight...southwest winds 10 to 15 knots becoming south 20 to
25 knots with gusts to around 30 knots. waves 2 to 4 feet
building to 8 to 12 feet. waves occasionally around 15 feet. 
.tuesday...south winds to 30 knots becoming southwest 20 to
25 knots early in the afternoon. snow. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.tuesday night...southwest winds 15 to 20 knots. a chance of snow
in the evening...then rain and snow after midnight. waves 6 to
9 feet. waves occasionally around 12 feet. 
.wednesday...south winds 20 to 25 knots backing to the north with
gusts to around 30 knots late in the morning...then increasing to
30 knots late in the afternoon becoming northwest 20 to 25 knots
late in the evening. rain with snow likely in the morning...then
a chance of rain late in the morning. a chance of snow late in
the morning. waves 8 to 12 feet building to 10 to 14 feet late in
the afternoon. waves occasionally around 18 feet. 
.thursday...west winds 15 to 20 knots. a chance of snow in the
late evening and early morning. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.friday...west winds 15 to 20 knots increasing to 30 knots. a
chance of snow until afternoon...then snow likely until early
morning. waves 4 to 6 feet building to 8 to 12 feet until early
morning. waves occasionally around 15 feet. 


$$

fzus63 kmkx 081448
glflm 
expires:202512082245;;223616

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
848 am cst mon dec 8 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...

light and variable winds this morning will shift to south then to
southwest this afternoon, and will increase through this evening 
as high pressure of 30.4 inches overhead this morning pushes 
eastward. gale force gusts are expected later this evening through
tonight across the north half of the lake as low pressure around
29.2 inches develops in the northern plains.

low pressure will then approach tuesday, bringing increased 
southerly winds across the south half of the lake by tuesday night
as the low moves through. winds will all shift to northwesterly 
as the low exits into wednesday, with gales possible in the 
southern half throughout this time frame. winds gradually diminish
wednesday night, remaining west to northwest through the end of 
the week as low pressure stalls over the northeast u.s.

a period of northwesterly gales is possible friday into saturday 
as a strong cold front pushes through the great lakes region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-082245-
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-
848 am cst mon dec 8 2025

sheboygan wi to pentwater mi south...

.rest of today...southeast winds 10 to 15 kt becoming south 10 to
20 kt. waves 2 to 4 ft building to 3 to 5 ft. 
.tonight...south winds 15 to 25 kt becoming southwest to 30 kt.
chance of snow overnight. waves 4 to 7 ft occasionally to 9 ft
building to 8 to 12 ft occasionally to 16 ft. 
.tuesday...southwest gales to 35 kt diminishing to 15 to 25 kt.
chance of snow in the morning, then chance of rain and snow in
the afternoon. waves 10 to 14 ft occasionally to 18 ft subsiding
to 6 to 9 ft occasionally to 12 ft. 
.tuesday night...southwest gales to 35 kt increasing to gales to
40 kt. rain and snow. waves 8 to 11 ft occasionally to 14 ft
building to 10 to 14 ft occasionally to 18 ft. 
.wednesday...northwest gales to 40 kt. rain and snow likely in
the morning, then chance of snow in the afternoon. waves 12 to
16 ft occasionally to 21 ft. 
.wednesday night...northwest winds to 30 kt diminishing to 10 to
20 kt. chance of snow. waves 10 to 14 ft occasionally to 18 ft
subsiding to 6 to 9 ft occasionally to 12 ft. 
.thursday...west winds 10 to 20 kt. waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft. 
.friday...west winds to 30 kt increasing to gales to 40 kt.
freezing spray. chance of snow. waves 6 to 9 ft occasionally to
12 ft building to 10 to 14 ft occasionally to 18 ft.  

$$

fzus63 kmkx 081448
glflm 
expires:202512082245;;223615

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
848 am cst mon dec 8 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...

light and variable winds this morning will shift to south then to
southwest this afternoon, and will increase through this evening 
as high pressure of 30.4 inches overhead this morning pushes 
eastward. gale force gusts are expected later this evening through
tonight across the north half of the lake as low pressure around
29.2 inches develops in the northern plains.

low pressure will then approach tuesday, bringing increased 
southerly winds across the south half of the lake by tuesday night
as the low moves through. winds will all shift to northwesterly 
as the low exits into wednesday, with gales possible in the 
southern half throughout this time frame. winds gradually diminish
wednesday night, remaining west to northwest through the end of 
the week as low pressure stalls over the northeast u.s.

a period of northwesterly gales is possible friday into saturday 
as a strong cold front pushes through the great lakes region.


lmz261-362-364-366-563-565-567-868-082245-
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-
848 am cst mon dec 8 2025

sheboygan wi to pentwater mi north...

...gale warning in effect from this evening through late
tonight...

.rest of today...southwest winds 5 to 10 kt increasing to 15 to
25 kt. slight chance of snow through mid morning, then scattered
snow showers this afternoon. waves 1 to 3 ft building to 3 to
5 ft. 
.tonight...south winds to 30 kt becoming southwest gales to
35 kt. chance of snow in the evening, then snow overnight. waves
5 to 8 ft occasionally to 10 ft building to 10 to 14 ft
occasionally to 18 ft. 
.tuesday...west gales to 35 kt diminishing to 10 to 20 kt. chance
of snow in the morning, then chance of snow and rain in the
afternoon. waves 8 to 12 ft occasionally to 16 ft subsiding to
4 to 7 ft occasionally to 9 ft. 
.tuesday night...southwest winds 15 to 25 kt backing to east to
30 kt. snow and rain. waves 5 to 8 ft occasionally to 10 ft
building to 8 to 11 ft occasionally to 14 ft. 
.wednesday...north gales to 35 kt. snow likely in the morning.
waves 8 to 12 ft occasionally to 16 ft. 
.wednesday night...northwest winds to 30 kt diminishing to 15 to
25 kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.thursday...northwest winds 10 to 20 kt. waves 3 to 5 ft. 
.friday...west winds 15 to 25 kt becoming northwest gales to
35 kt. snow likely. waves 4 to 7 ft occasionally to 9 ft building
to 7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmqt 081501
glfls 
expires:202512082100;;224017

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon dec 8 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 30.4 inch high over the great lakes today will shift east to 
upstate new york this evening as a 29.8 inch low over the canadian 
prairie deepens to 29.6 inches while moving over lake superior by 
tuesday morning. a stronger 29.3 inch low moving out of the canadian 
rockies will cross lake michigan at 29.2 inches tuesday night, 
resulting in 29.4 inch troughing over lake superior into wednesday. 
the low will move into new england at 29.2 inches by thursday 
morning, allowing 30.5 inch high pressure to rebuild over the 
northern plains through friday and shift east towards the great 
lakes during the weekend.



lsz162-082100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est mon dec 8 2025 /900 am cst mon dec 8 2025/

.rest of today...southwest winds 10 to 20 knots increasing to
15 to 25 knots by mid afternoon. a slight chance of snow showers.
waves calm to 2 feet building to 3 to 5 feet occasionally to
7 feet. 
.tonight...southwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight, then becoming northwest 10 to 20 knots
late. snow showers in the evening, then a chance of snow showers
after midnight. waves subsiding to 2 to 4 feet. 
.tuesday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by late morning, then backing south by mid afternoon. a
chance of snow showers in the afternoon. waves subsiding to calm
to 2 feet. 
.tuesday night...east winds 15 to 25 knots becoming northeast
20 to 30 knots after midnight. snow showers likely in the
evening, then a chance of snow showers after midnight. freezing
spray after midnight. waves building to 5 to 8 feet occasionally
to 10 feet. 
.wednesday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray in the morning. a
chance of snow showers. waves subsiding to 2 to 4 feet. 
.wednesday night...northwest winds 10 to 20 knots. waves
subsiding to calm to 2 feet. 
.thursday...northwest winds 10 to 20 knots. a chance of snow
showers. waves building to 1 to 3 feet. 
.friday...northwest gales to 35 knots. a chance of snow showers.
waves building to 3 to 6 feet occasionally to 8 feet, then
subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 081501
glfls 
expires:202512082100;;224018

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon dec 8 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 30.4 inch high over the great lakes today will shift east to 
upstate new york this evening as a 29.8 inch low over the canadian 
prairie deepens to 29.6 inches while moving over lake superior by 
tuesday morning. a stronger 29.3 inch low moving out of the canadian 
rockies will cross lake michigan at 29.2 inches tuesday night, 
resulting in 29.4 inch troughing over lake superior into wednesday. 
the low will move into new england at 29.2 inches by thursday 
morning, allowing 30.5 inch high pressure to rebuild over the 
northern plains through friday and shift east towards the great 
lakes during the weekend.



lsz263-082100-
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-
1000 am est mon dec 8 2025

.rest of today...southwest winds 5 to 15 knots increasing to
15 to 25 knots. a slight chance of snow showers. waves 1 to
3 feet building to 3 to 5 feet occasionally to 7 feet. 
.tonight...south winds 15 to 25 knots becoming southwest 10 to
20 knots by midnight, then veering west late. snow showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.tuesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of snow showers. waves subsiding to calm to
2 feet. 
.tuesday night...northeast winds 15 to 25 knots increasing to
gales to 35 knots after midnight. a chance of snow showers.
freezing spray after midnight. waves building to 7 to 10 feet
occasionally to 13 feet. 
.wednesday...north gales to 35 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray in the morning. a
chance of snow showers. waves building to 8 to 11 feet
occasionally to 14 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.thursday...northwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.friday...northwest gales to 40 knots. freezing spray. a chance
of snow showers. waves building to 5 to 9 feet occasionally to
11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 081501
glfls 
expires:202512082100;;224019

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon dec 8 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 30.4 inch high over the great lakes today will shift east to 
upstate new york this evening as a 29.8 inch low over the canadian 
prairie deepens to 29.6 inches while moving over lake superior by 
tuesday morning. a stronger 29.3 inch low moving out of the canadian 
rockies will cross lake michigan at 29.2 inches tuesday night, 
resulting in 29.4 inch troughing over lake superior into wednesday. 
the low will move into new england at 29.2 inches by thursday 
morning, allowing 30.5 inch high pressure to rebuild over the 
northern plains through friday and shift east towards the great 
lakes during the weekend.



lsz264-082100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am est mon dec 8 2025

.rest of today...southwest winds 10 to 20 knots. a slight chance
of snow showers. waves 1 to 3 feet building to 3 to 5 feet
occasionally to 7 feet. 
.tonight...southwest winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. a chance of snow showers in the evening,
then snow showers after midnight. waves 3 to 5 feet occasionally
to 7 feet. 
.tuesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots by late morning, then veering north by mid afternoon. a
chance of snow showers. waves subsiding to calm to 2 feet. 
.tuesday night...northeast winds 15 to 25 knots increasing to
gales to 35 knots after midnight. a chance of snow showers.
freezing spray after midnight. waves building to 7 to 10 feet
occasionally to 13 feet. 
.wednesday...north gales to 35 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray. a slight chance of
snow showers. waves building to 8 to 11 feet occasionally to
14 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday...northwest winds 10 to 20 knots increasing to 15 to
25 knots. waves subsiding to 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.friday...northwest gales to 40 knots. freezing spray. a chance
of snow showers. waves building to 8 to 11 feet occasionally to
14 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 081501
glfls 
expires:202512082100;;224020

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon dec 8 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 30.4 inch high over the great lakes today will shift east to 
upstate new york this evening as a 29.8 inch low over the canadian 
prairie deepens to 29.6 inches while moving over lake superior by 
tuesday morning. a stronger 29.3 inch low moving out of the canadian 
rockies will cross lake michigan at 29.2 inches tuesday night, 
resulting in 29.4 inch troughing over lake superior into wednesday. 
the low will move into new england at 29.2 inches by thursday 
morning, allowing 30.5 inch high pressure to rebuild over the 
northern plains through friday and shift east towards the great 
lakes during the weekend.



lsz265-082100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am est mon dec 8 2025

.rest of today...southwest winds 10 to 20 knots increasing to
15 to 25 knots. waves calm to 2 feet building to 1 to 3 feet. 
.tonight...southwest winds 20 to 30 knots diminishing to 15 to
25 knots late. a chance of snow showers in the evening, then snow
showers after midnight. waves building to 2 to 4 feet. 
.tuesday...west winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. a chance of snow showers. waves
subsiding to calm to 2 feet. 
.tuesday night...northeast winds 10 to 20 knots increasing to
20 to 30 knots after midnight. snow showers likely. waves
building to 5 to 8 feet occasionally to 10 feet. 
.wednesday...north gales to 35 knots becoming northwest 20 to
30 knots in the afternoon. a chance of snow showers. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.wednesday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.thursday...northwest winds 15 to 25 knots backing west. a chance
of snow showers. waves subsiding to 1 to 3 feet, then building to
2 to 4 feet. 
.friday...northwest gales to 45 knots. freezing spray. snow
showers likely. waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 081501
glfls 
expires:202512082100;;224021

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon dec 8 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 30.4 inch high over the great lakes today will shift east to 
upstate new york this evening as a 29.8 inch low over the canadian 
prairie deepens to 29.6 inches while moving over lake superior by 
tuesday morning. a stronger 29.3 inch low moving out of the canadian 
rockies will cross lake michigan at 29.2 inches tuesday night, 
resulting in 29.4 inch troughing over lake superior into wednesday. 
the low will move into new england at 29.2 inches by thursday 
morning, allowing 30.5 inch high pressure to rebuild over the 
northern plains through friday and shift east towards the great 
lakes during the weekend.



lsz266-082100-
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-
1000 am est mon dec 8 2025

.rest of today...southwest winds 10 to 20 knots increasing to
20 to 30 knots. waves 2 to 4 feet subsiding to 1 to 3 feet, then
building to 3 to 6 feet occasionally to 8 feet. 
.tonight...southwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 15 to 25 knots. a
chance of snow showers in the evening, then snow showers after
midnight. waves building to 6 to 9 feet occasionally to 11 feet,
then subsiding to 4 to 7 feet occasionally to 9 feet. 
.tuesday...west winds 15 to 25 knots veering northwest by late
morning, then diminishing to 10 to 20 knots by mid afternoon.
snow showers in the morning, then a chance of snow showers in the
afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northeast winds 10 to 20 knots increasing to
gales to 35 knots after midnight. snow showers in the evening,
then a chance of snow showers after midnight. waves building to
5 to 8 feet occasionally to 10 feet. 
.wednesday...north gales to 35 knots. freezing spray in the
morning. a chance of snow showers. waves building to 7 to 10 feet
occasionally to 13 feet. 
.wednesday night...northwest winds 20 to 30 knots. snow showers
likely in the evening. a chance of snow showers after midnight.
waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.thursday...northwest winds 15 to 25 knots. a chance of snow
showers, then snow showers likely. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday...northwest gales to 40 knots veering north. freezing
spray. snow showers. waves building to 11 to 15 feet occasionally
to 19 feet, then subsiding to 10 to 14 feet occasionally to
18 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 081501
glfls 
expires:202512082100;;224022

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon dec 8 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 30.4 inch high over the great lakes today will shift east to 
upstate new york this evening as a 29.8 inch low over the canadian 
prairie deepens to 29.6 inches while moving over lake superior by 
tuesday morning. a stronger 29.3 inch low moving out of the canadian 
rockies will cross lake michigan at 29.2 inches tuesday night, 
resulting in 29.4 inch troughing over lake superior into wednesday. 
the low will move into new england at 29.2 inches by thursday 
morning, allowing 30.5 inch high pressure to rebuild over the 
northern plains through friday and shift east towards the great 
lakes during the weekend.



lsz267-082100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am est mon dec 8 2025

.rest of today...west winds 10 to 20 knots becoming southwest
15 to 25 knots by late morning, then increasing to 20 to 30 knots
by mid afternoon. a slight chance of snow showers late in the
morning. waves 2 to 4 feet building to 3 to 6 feet occasionally
to 8 feet. 
.tonight...southwest winds 20 to 30 knots backing south by
midnight, then veering southwest late. a chance of snow showers
in the evening, then snow showers after midnight. waves building
to 4 to 8 feet occasionally to 10 feet. 
.tuesday...southwest winds 15 to 25 knots veering west. snow
showers in the morning, then a chance of snow showers in the
afternoon. waves subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 10 to 20 knots becoming
northeast 15 to 25 knots after midnight. snow showers likely.
waves subsiding to calm to 2 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...north winds 20 to 30 knots. a chance of snow
showers. waves building to 5 to 8 feet occasionally to 10 feet. 
.wednesday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...northwest winds 15 to 25 knots. a chance of snow
showers, then snow showers likely. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday...northwest winds 20 to 30 knots veering north. snow
showers. freezing spray. waves building to 8 to 12 feet
occasionally to 15 feet. 

note, wave height forecasts are for ice free areas.

$$