fzus61 kbuf 230902
glflo 
expires:202512231600;;072496

open lake forecast for lake ontario
national weather service buffalo ny
402 am est tue dec 23 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 large 30.6 inch high will build east across the lake 
tonight, then slide to the atlantic coastline monday. a 29.8 inch 
low just north of lake superior tuesday will pass north of the lake, 
resulting in a pair of fronts passing across the region. following 
the passage of this system, a 30.4 inch high will then build across 
the lake wednesday, sliding off the atlantic coastline thursday.


loz064-065-231600-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 am est tue dec 23 2025

.today...south winds 10 to 15 knots becoming southwest 15 to
20 knots. rain and snow this morning, then rain and snow showers
early this afternoon. rain showers likely late. waves 1 to 3 feet
building to 3 to 5 feet. 
.tonight...west winds to 30 knots becoming northwest. a chance of
rain showers. waves 5 to 8 feet building to 8 to 12 feet. waves
occasionally around 15 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves 8 to 11 feet subsiding to 1 to 3 feet. waves
occasionally around 14 feet. 
.wednesday night...west winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.thursday...west winds 10 to 15 knots becoming northeast 15 to
20 knots. waves 1 to 2 feet building to 3 to 5 feet, then
subsiding to 2 to 4 feet. 
.friday...east winds 15 to 25 knots. snow likely. waves 2 to
4 feet building to 3 to 5 feet. 
.saturday...east winds 15 to 20 knots becoming southeast. a
chance of snow during the day, then rain likely saturday night.
waves 2 to 4 feet. 

$$

fzus61 kbuf 230902
glflo 
expires:202512231600;;072494

open lake forecast for lake ontario
national weather service buffalo ny
402 am est tue dec 23 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 large 30.6 inch high will build east across the lake 
tonight, then slide to the atlantic coastline monday. a 29.8 inch 
low just north of lake superior tuesday will pass north of the lake, 
resulting in a pair of fronts passing across the region. following 
the passage of this system, a 30.4 inch high will then build across 
the lake wednesday, sliding off the atlantic coastline thursday.


loz062-231600-
lake ontario open waters from the niagara river to hamlin beach-
402 am est tue dec 23 2025

.today...southeast winds 10 to 15 knots becoming west 15 to
20 knots. rain this morning, then a chance of rain showers early
this afternoon. waves 1 to 3 feet building to 3 to 5 feet. 
.tonight...west winds to 30 knots becoming northwest. waves 5 to
8 feet building to 6 to 9 feet. waves occasionally around
11 feet. 
.wednesday...northwest winds 15 to 25 knots becoming west and
diminishing to 5 to 10 knots in the afternoon. waves 5 to 8 feet
subsiding to 1 to 3 feet. waves occasionally around 10 feet. 
.wednesday night...west winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.thursday...northwest winds 5 to 15 knots becoming northeast
15 to 20 knots. waves 2 feet or less building to 3 to 5 feet. 
.friday...east winds to 30 knots diminishing to 15 to 20 knots.
snow. waves 5 to 8 feet building to 6 to 10 feet, then subsiding
to 4 to 7 feet. waves occasionally around 13 feet. 
.saturday...east winds 10 to 15 knots becoming southeast. rain
likely saturday night. waves 3 to 5 feet subsiding to 2 to
4 feet. 

$$

fzus61 kbuf 230902
glflo 
expires:202512231600;;072495

open lake forecast for lake ontario
national weather service buffalo ny
402 am est tue dec 23 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 large 30.6 inch high will build east across the lake 
tonight, then slide to the atlantic coastline monday. a 29.8 inch 
low just north of lake superior tuesday will pass north of the lake, 
resulting in a pair of fronts passing across the region. following 
the passage of this system, a 30.4 inch high will then build across 
the lake wednesday, sliding off the atlantic coastline thursday.


loz063-231600-
lake ontario open waters from hamlin beach to sodus bay-
402 am est tue dec 23 2025

.today...southeast winds 10 to 15 knots becoming west 15 to
20 knots. rain and snow this morning, then rain showers likely
early this afternoon. a chance of rain showers late. waves 1 to
3 feet building to 3 to 5 feet. 
.tonight...west winds to 30 knots becoming northwest. waves 5 to
8 feet building to 9 to 12 feet. waves occasionally around
15 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves 7 to 10 feet subsiding to 1 to 3 feet. waves
occasionally around 13 feet. 
.wednesday night...west winds 5 to 10 knots becoming southwest.
waves 1 to 2 feet. 
.thursday...west winds 10 to 15 knots becoming northeast 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.friday...east winds 15 to 25 knots. snow likely. waves 3 to
6 feet building to 4 to 7 feet. waves occasionally around 9 feet.
.saturday...east winds 15 to 20 knots becoming southeast. a
chance of snow during the day, then a chance of rain saturday
night. waves 3 to 5 feet subsiding to 2 to 4 feet. 

$$

fzus61 kcle 231453
glfle 
expires:202512232115;;086771

open lake forecast for lake erie
national weather service cleveland oh
953 am est tue dec 23 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...
a cold front slides across lake erie this evening. high pressure 
30.40 inches returns tuesday night through wednesday before 
another low pressure 29.70 inches inches moves across the southern
great lakes thursday night into friday. a trough averaging 29.80 
inches will linger into saturday, and a strong cold front is 
expected sunday.


lez061-168-169-232115-
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-
953 am est tue dec 23 2025

.rest of today...southwest winds 15 to 20 knots becoming west. a
chance of rain late this morning. waves 1 to 3 feet building to
3 to 6 feet. 
.tonight...west winds 15 to 25 knots becoming northwest. waves
3 to 6 feet. 
.wednesday...northwest winds 5 to 15 knots becoming southwest
less than 10 knots. waves 2 to 4 feet subsiding to 1 foot or
less. 
.wednesday night...south winds 10 knots or less becoming
southwest. waves 1 foot or less. 
.thursday...west winds 5 to 15 knots becoming east 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.friday...east winds 15 to 20 knots diminishing to 5 to 15 knots.
rain with snow and freezing rain likely during the day, then a
chance of rain friday night. waves 3 to 5 feet subsiding to 1 to
2 feet. 
.saturday...east winds 5 to 15 knots becoming southwest. rain
likely saturday night. waves 1 to 3 feet. 

$$

fzus61 kcle 231453
glfle 
expires:202512232115;;086769

open lake forecast for lake erie
national weather service cleveland oh
953 am est tue dec 23 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...
a cold front slides across lake erie this evening. high pressure 
30.40 inches returns tuesday night through wednesday before 
another low pressure 29.70 inches inches moves across the southern
great lakes thursday night into friday. a trough averaging 29.80 
inches will linger into saturday, and a strong cold front is 
expected sunday.


lez162>165-232115-
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-
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-
953 am est tue dec 23 2025

.rest of today...southwest winds 15 to 20 knots becoming west.
waves 1 to 3 feet building to 2 to 4 feet. 
.tonight...west winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...north winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.wednesday night...southeast winds 5 to 10 knots becoming
southwest. a chance of rain overnight. waves 1 foot or less. 
.thursday...northwest winds 5 to 15 knots becoming east 15 to
20 knots. a chance of rain and freezing rain thursday night.
waves 1 to 3 feet building to 3 to 5 feet. 
.friday...east winds 15 to 20 knots becoming northeast 5 to
15 knots. rain and freezing rain during the day. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.saturday...east winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. a chance of rain saturday night.
waves 1 to 3 feet. 

$$

fzus61 kcle 231453
glfle 
expires:202512232115;;086770

open lake forecast for lake erie
national weather service cleveland oh
953 am est tue dec 23 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...
a cold front slides across lake erie this evening. high pressure 
30.40 inches returns tuesday night through wednesday before 
another low pressure 29.70 inches inches moves across the southern
great lakes thursday night into friday. a trough averaging 29.80 
inches will linger into saturday, and a strong cold front is 
expected sunday.


lez166-167-232115-
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-
953 am est tue dec 23 2025

.rest of today...southwest winds 15 to 20 knots becoming west. a
slight chance of rain late this morning. waves 2 to 4 feet
building to 3 to 5 feet. 
.tonight...west winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.wednesday...north winds 10 knots or less becoming southeast.
waves 1 to 3 feet subsiding to 1 foot or less. 
.wednesday night...southeast winds 5 to 10 knots becoming
southwest. a chance of rain overnight. waves 1 foot or less. 
.thursday...northwest winds 5 to 15 knots becoming east 15 to
20 knots. a chance of rain thursday night. waves 1 to 3 feet
building to 3 to 5 feet. 
.friday...east winds 15 to 20 knots becoming northeast 5 to
15 knots. rain during the day, then a chance of rain friday
night. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.saturday...east winds 5 to 15 knots becoming southwest 15 to
20 knots. rain likely saturday night. waves 1 to 2 feet building
to 2 to 4 feet. 

$$

fzus63 kdtx 231439
glfsc 
expires:202512232300;;086548

lake st clair forecast
national weather service detroit/pontiac mi
939 am est tue dec 23 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...low pressure, 29.80 inches, will then travel from west
to east across lake superior this morning. passage of this system
will veer wind direction to the northwest and will increase wind
speeds across the northern half of lake huron, bringing gust to
gales. high pressure, 30.40 inches, then quickly fills in across
the great lakes early tomorrow morning.


lcz460-232300-
lake st clair-
939 am est tue dec 23 2025

.rest of today...southwest winds 5 to 10 knots. mostly cloudy. waves
2 feet or less.
.tonight...west winds 10 to 15 knots becoming northwest 5 to 10
knots in the late evening and overnight. partly cloudy. waves 2 feet
or less.
.wednesday...north winds 5 to 10 knots early in the morning becoming
light and variable...then becoming southeast 5 to 10 knots early in
the afternoon. mostly cloudy. waves 2 feet or less.
.wednesday night...south winds 5 to 10 knots veering to the
southwest after midnight. cloudy early in the evening becoming
partly cloudy. waves 2 feet or less.
.thursday...north winds 5 to 10 knots becoming northeast 10 to 15
knots in the evening. partly sunny in the morning becoming mostly
cloudy. waves 2 feet or less.
.friday...northeast winds 15 to 20 knots. light freezing rain...
possible rain and snow likely. waves 2 feet or less.
.saturday...southeast winds 10 to 15 knots. mostly cloudy with a
chance of light rain. waves 2 feet or less.

wave heights are for ice free areas.

$$

fzus63 kdtx 231438
glflh 
expires:202512232300;;086467

open lake forecast for lake huron
national weather service detroit/pontiac mi
938 am est tue dec 23 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, 29.80 inches, will then travel from west
to east across lake superior this morning. passage of this system
will veer wind direction to the northwest and will increase wind
speeds across the northern half of lake huron, bringing gust to
gales. high pressure, 30.40 inches, then quickly fills in across
the great lakes early tomorrow morning.


lhz463-464-232300-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
938 am est tue dec 23 2025

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


$$

fzus63 kdtx 231438
glflh 
expires:202512232300;;086465

open lake forecast for lake huron
national weather service detroit/pontiac mi
938 am est tue dec 23 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, 29.80 inches, will then travel from west
to east across lake superior this morning. passage of this system
will veer wind direction to the northwest and will increase wind
speeds across the northern half of lake huron, bringing gust to
gales. high pressure, 30.40 inches, then quickly fills in across
the great lakes early tomorrow morning.


lhz361-362-232300-
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-
938 am est tue dec 23 2025

...gale warning in effect from 4 pm est this afternoon through
this evening...

.rest of today...southwest winds 10 to 15 knots becoming west
20 to 25 knots with gusts to 35 knot gales late in the afternoon.
waves 3 to 5 feet building to 6 to 9 feet late in the afternoon.
waves occasionally around 12 feet. 
.tonight...northwest winds to 30 knots with gusts to 40 knot
gales decreasing to 15 to 20 knots. waves 10 to 14 feet. waves
occasionally around 18 feet. 
.wednesday...north winds 5 to 10 knots backing to the south early
in the afternoon. waves 5 to 7 feet subsiding to 1 to 3 feet.
waves occasionally around 10 feet. 
.wednesday night...south winds 10 to 15 knots veering to the west
after midnight. waves 1 to 3 feet. 
.thursday...north winds 10 to 15 knots becoming northeast 15 to
20 knots late in the afternoon...then becoming east 20 to
25 knots with gusts to around 30 knots late in the evening. a
chance of snow late in the evening. waves 3 to 5 feet building to
6 to 9 feet late in the evening. waves occasionally around
12 feet. 
.friday...east winds 20 to 25 knots with gusts to around 30 knots
decreasing to 10 to 15 knots. snow likely. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.saturday...southeast winds 10 to 15 knots increasing to 15 to
20 knots by midnight. a chance of rain by midnight. waves 3 to
5 feet. 


$$

fzus63 kdtx 231438
glflh 
expires:202512232300;;086466

open lake forecast for lake huron
national weather service detroit/pontiac mi
938 am est tue dec 23 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, 29.80 inches, will then travel from west
to east across lake superior this morning. passage of this system
will veer wind direction to the northwest and will increase wind
speeds across the northern half of lake huron, bringing gust to
gales. high pressure, 30.40 inches, then quickly fills in across
the great lakes early tomorrow morning.


lhz363-462-232300-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
938 am est tue dec 23 2025

.rest of today...southwest winds 10 to 15 knots becoming west
15 to 20 knots late in the afternoon. waves 3 to 5 feet. 
.tonight...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots early in the morning. waves
8 to 12 feet. waves occasionally around 15 feet.
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then veering
to the south early in the afternoon. waves 5 to 7 feet subsiding
to 1 to 3 feet early in the afternoon. waves occasionally around
10 feet. 
.wednesday night...south winds 10 to 15 knots. waves 1 to 3 feet.
.thursday...north winds 10 to 15 knots becoming northeast 15 to
20 knots late in the afternoon. a chance of snow late in the
evening. waves 3 to 5 feet building to 5 to 7 feet late in the
evening. waves occasionally around 10 feet. 
.friday...southeast winds 20 to 25 knots becoming east 10 to
15 knots. snow likely. waves 5 to 7 feet. waves occasionally
around 10 feet. 
.saturday...east winds 10 to 15 knots veering to the southeast
early in the evening...then becoming south 15 to 20 knots by
midnight. a chance of rain by midnight. waves 2 to 4 feet. 


$$

fzus63 kmkx 231459
glflm 
expires:202512232215;;087006

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cst tue dec 23 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...

southwest winds early this morning will gradually become 
northwest by this afternoon, as low pressure around 29.8 inches 
moves into ontario. high pressure around 30.4 inches will then 
move from north dakota into northern minnesota by tonight. winds 
will become light and northerly. this high will then move over 
northern lake superior wednesday bringing light and variable winds
to lake michigan. south to southeast winds are expected behind 
the high wednesday night. 

another stronger high around 30.5 inches will move east across 
southern manitoba into ontario early christmas day, with winds 
steadily increasing out of the northeast to east.


lmz261-362-364-366-563-565-567-868-232215-
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-
859 am cst tue dec 23 2025

sheboygan wi to pentwater mi north...

.rest of today...west winds 10 to 20 kt becoming northwest to
30 kt. waves 3 to 5 ft. 
.tonight...northwest winds to 30 kt becoming north 15 to 25 kt
late in the evening, then diminishing to 10 to 20 kt after
midnight diminishing to 5 to 10 kt late. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.wednesday...east winds 10 to 15 kt veering to south 10 to 20 kt.
chance of light freezing rain and snow in the morning, then
chance of snow in the afternoon. waves 1 to 3 ft building to 2 to
4 ft. 
.wednesday night...southwest winds 10 to 15 kt veering to north
10 to 20 kt. chance of rain in the evening. waves 2 to 4 ft. 
.thursday...northeast winds 10 to 20 kt. waves 2 to 4 ft. 
.thursday night...east winds 15 to 25 kt becoming southeast to
30 kt. chance of snow, rain and light freezing rain. waves 3 to
5 ft building to 4 to 7 ft occasionally to 9 ft. 
.friday...southeast winds to 30 kt diminishing to 15 to 25 kt.
snow and light freezing rain likely. waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft. 
.saturday...southeast winds 10 to 20 kt. chance of rain. waves
2 to 4 ft.  

$$

fzus63 kmkx 231459
glflm 
expires:202512232215;;087007

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cst tue dec 23 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...

southwest winds early this morning will gradually become 
northwest by this afternoon, as low pressure around 29.8 inches 
moves into ontario. high pressure around 30.4 inches will then 
move from north dakota into northern minnesota by tonight. winds 
will become light and northerly. this high will then move over 
northern lake superior wednesday bringing light and variable winds
to lake michigan. south to southeast winds are expected behind 
the high wednesday night. 

another stronger high around 30.5 inches will move east across 
southern manitoba into ontario early christmas day, with winds 
steadily increasing out of the northeast to east.


lmz080-669-671-673-675-777-779-870-872-874-876-878-232215-
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-
859 am cst tue dec 23 2025

sheboygan wi to pentwater mi south...

.rest of today...west winds 10 to 20 kt becoming northwest. waves
2 to 4 ft. 
.tonight...northwest winds 10 to 20 kt veering to northeast 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday...east winds 10 to 15 kt becoming southeast 10 to
20 kt. waves 3 to 5 ft. 
.wednesday night...south winds 10 to 15 kt veering to northwest.
chance of rain in the evening. waves 2 to 4 ft subsiding to 1 to
3 ft. 
.thursday...northeast winds 10 to 20 kt. waves 3 to 5 ft. 
.thursday night...east winds 15 to 25 kt becoming southeast. rain
likely. waves 4 to 6 ft occasionally to 8 ft building to 4 to
7 ft occasionally to 9 ft. 
.friday...southeast winds 15 to 25 kt becoming east 10 to 20 kt.
chance of rain. waves 4 to 7 ft occasionally to 9 ft subsiding to
3 to 5 ft. 
.saturday...southeast winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmqt 231501
glfls 
expires:202512232100;;087061

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 23 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 29.8 inch low near thunder bay early this morning progresses east 
today, reaching quebec by this evening. in its wake, a 30.4 inch 
high pressure moves over lake superior from the canadian prairies 
tonight with weak troughing of 30.1 inches moving over the lake late 
wednesday as the high shifts east. 30.3 inch ridging builds back in 
for thursday as a 30.5 inch high transits ontario. low pressure of 
29.6 inches moves through the lower great lakes friday. a deepening 
low will then lift into the upper great lakes saturday night into 
sunday.



lsz162-232100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est tue dec 23 2025 /900 am cst tue dec 23 2025/

.rest of today...west winds 20 to 30 knots veering northwest.
waves 3 to 6 feet occasionally to 8 feet. 
.tonight...north winds 10 to 20 knots becoming east 5 to 15 knots
by midnight, then veering southeast late. a slight chance of snow
showers and sleet after midnight. waves subsiding to calm to
2 feet. 
.wednesday...south winds 5 to 15 knots veering west by mid
afternoon. a chance of snow showers and sleet in the morning.
waves calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.thursday...northeast winds 15 to 25 knots veering east in the
afternoon. a chance of snow showers in the afternoon. waves
building to 3 to 5 feet occasionally to 7 feet. 
.thursday night...east winds 15 to 25 knots veering southeast
after midnight. snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday...south winds 10 to 20 knots becoming southeast 5 to
15 knots. a chance of snow showers. waves subsiding to calm to
2 feet. 
.saturday...south winds 10 to 20 knots becoming west gales to
35 knots. a chance of rain showers, possibly mixed with snow. a
chance of freezing rain. waves building to 4 to 7 feet
occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 231501
glfls 
expires:202512232100;;087062

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 23 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 29.8 inch low near thunder bay early this morning progresses east 
today, reaching quebec by this evening. in its wake, a 30.4 inch 
high pressure moves over lake superior from the canadian prairies 
tonight with weak troughing of 30.1 inches moving over the lake late 
wednesday as the high shifts east. 30.3 inch ridging builds back in 
for thursday as a 30.5 inch high transits ontario. low pressure of 
29.6 inches moves through the lower great lakes friday. a deepening 
low will then lift into the upper great lakes saturday night into 
sunday.



lsz263-232100-
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 tue dec 23 2025

.rest of today...west winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible by late morning,
then becoming northwest 20 to 30 knots by mid afternoon. waves
4 to 7 feet occasionally to 9 feet building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.tonight...north winds 15 to 25 knots becoming northeast 5 to
15 knots by midnight, then veering southeast late. waves
subsiding to calm to 2 feet. 
.wednesday...south winds 5 to 15 knots becoming southwest 10 to
20 knots by late morning, then diminishing to 5 to 15 knots by
mid afternoon. a chance of snow showers and sleet in the morning.
waves calm to 2 feet. 
.wednesday night...north winds 10 to 20 knots. waves building to
2 to 4 feet. 
.thursday...northeast winds 10 to 20 knots becoming east 15 to
25 knots in the afternoon. a chance of snow showers in the
afternoon. waves building to 3 to 5 feet occasionally to 7 feet. 
.thursday night...east winds 20 to 30 knots veering southeast
after midnight. snow showers. waves building to 6 to 9 feet
occasionally to 11 feet. 
.friday...south winds 15 to 25 knots becoming southeast 5 to
15 knots. a chance of snow showers. waves subsiding to 1 to
3 feet. 
.saturday...south winds 15 to 25 knots becoming west gales to
45 knots. a chance of rain and snow showers. freezing spray.
waves building to 8 to 11 feet occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 231501
glfls 
expires:202512232100;;087063

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 23 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 29.8 inch low near thunder bay early this morning progresses east 
today, reaching quebec by this evening. in its wake, a 30.4 inch 
high pressure moves over lake superior from the canadian prairies 
tonight with weak troughing of 30.1 inches moving over the lake late 
wednesday as the high shifts east. 30.3 inch ridging builds back in 
for thursday as a 30.5 inch high transits ontario. low pressure of 
29.6 inches moves through the lower great lakes friday. a deepening 
low will then lift into the upper great lakes saturday night into 
sunday.



lsz264-232100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am est tue dec 23 2025

...gale warning in effect until 10 pm est this evening...

.rest of today...west winds 15 to 25 knots becoming northwest
gales to 35 knots. waves 3 to 6 feet occasionally to 8 feet
building to 8 to 11 feet occasionally to 14 feet. 
.tonight...north winds 20 to 30 knots diminishing to 10 to
20 knots by midnight, then becoming northwest 5 to 15 knots late.
waves subsiding to 1 to 3 feet. 
.wednesday...south winds 5 to 15 knots increasing to 10 to
20 knots by late morning, then becoming southwest 5 to 15 knots
by mid afternoon. a chance of snow showers and sleet in the
morning. waves subsiding to calm to 2 feet, then building to 1 to
3 feet. 
.wednesday night...northwest winds 10 to 20 knots becoming north
15 to 25 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.thursday...northeast winds 10 to 20 knots becoming east 15 to
25 knots in the afternoon. a slight chance of snow showers in the
afternoon. waves subsiding to 2 to 4 feet. 
.thursday night...southeast winds 20 to 30 knots increasing to
gales to 35 knots after midnight. snow showers. waves building to
8 to 11 feet occasionally to 14 feet. 
.friday...south gales to 35 knots becoming southeast 10 to
20 knots. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.saturday...south winds 15 to 25 knots becoming west gales to
45 knots. a chance of rain and snow showers. freezing spray.
waves building to 9 to 12 feet occasionally to 15 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 231501
glfls 
expires:202512232100;;087064

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 23 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 29.8 inch low near thunder bay early this morning progresses east 
today, reaching quebec by this evening. in its wake, a 30.4 inch 
high pressure moves over lake superior from the canadian prairies 
tonight with weak troughing of 30.1 inches moving over the lake late 
wednesday as the high shifts east. 30.3 inch ridging builds back in 
for thursday as a 30.5 inch high transits ontario. low pressure of 
29.6 inches moves through the lower great lakes friday. a deepening 
low will then lift into the upper great lakes saturday night into 
sunday.



lsz265-232100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am est tue dec 23 2025

...gale warning in effect until 10 pm est this evening...

.rest of today...west winds 20 to 30 knots increasing to gales to
40 knots by late morning, then veering northwest by mid
afternoon. waves 3 to 5 feet occasionally to 7 feet building to
8 to 11 feet occasionally to 14 feet. 
.tonight...northwest gales to 35 knots becoming north 10 to
20 knots by midnight, then becoming northwest 5 to 15 knots late.
waves subsiding to 2 to 4 feet. 
.wednesday...south winds 10 to 20 knots increasing to 15 to
25 knots by late morning, then becoming southwest 10 to 20 knots
by mid afternoon. a chance of snow showers and sleet in the
morning. waves subsiding to calm to 2 feet. 
.wednesday night...west winds 10 to 20 knots becoming north 15 to
25 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.thursday...northeast winds 15 to 25 knots veering east in the
afternoon. a slight chance of snow showers in the afternoon.
waves subsiding to 2 to 4 feet. 
.thursday night...southeast gales to 35 knots. snow showers.
waves building to 6 to 9 feet occasionally to 11 feet. 
.friday...southeast gales to 35 knots becoming south 10 to
20 knots. snow showers likely. waves subsiding to 1 to 3 feet. 
.saturday...south winds 15 to 25 knots becoming west storm force
winds to 60 knots. a chance of rain showers, possibly mixed with
snow, then snow showers, possibly mixed with rain. freezing
spray. waves building to 9 to 12 feet occasionally to 15 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 231501
glfls 
expires:202512232100;;087065

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 23 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 29.8 inch low near thunder bay early this morning progresses east 
today, reaching quebec by this evening. in its wake, a 30.4 inch 
high pressure moves over lake superior from the canadian prairies 
tonight with weak troughing of 30.1 inches moving over the lake late 
wednesday as the high shifts east. 30.3 inch ridging builds back in 
for thursday as a 30.5 inch high transits ontario. low pressure of 
29.6 inches moves through the lower great lakes friday. a deepening 
low will then lift into the upper great lakes saturday night into 
sunday.



lsz266-232100-
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 tue dec 23 2025

...gale warning in effect until 10 pm est this evening...

.rest of today...west winds 20 to 30 knots increasing to gales to
35 knots by late morning, then becoming northwest gales to
40 knots by mid afternoon. waves 3 to 5 feet occasionally to
7 feet building to 12 to 17 feet occasionally to 21 feet. 
.tonight...northwest gales to 40 knots becoming north 15 to
25 knots by midnight, then diminishing to 10 to 20 knots late.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday...south winds 5 to 15 knots increasing to 15 to
25 knots by late morning, then veering southwest by mid
afternoon. a slight chance of snow showers and sleet. waves
subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday night...west winds 10 to 20 knots becoming north 15 to
25 knots after midnight. waves subsiding to 2 to 4 feet, then
building to 3 to 6 feet occasionally to 8 feet. 
.thursday...northeast winds 15 to 25 knots veering east in the
afternoon. a slight chance of snow showers in the afternoon.
waves subsiding to 2 to 4 feet. 
.thursday night...southeast gales to 40 knots. snow showers.
waves building to 8 to 11 feet occasionally to 14 feet. 
.friday...southeast gales to 40 knots diminishing to 15 to
25 knots. a chance of snow showers. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.saturday...south winds 20 to 30 knots becoming west storm force
winds to 55 knots. a chance of rain and snow showers, then snow
showers, possibly mixed with rain. freezing spray. waves building
to 10 to 14 feet occasionally to 18 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 231501
glfls 
expires:202512232100;;087066

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 23 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 29.8 inch low near thunder bay early this morning progresses east 
today, reaching quebec by this evening. in its wake, a 30.4 inch 
high pressure moves over lake superior from the canadian prairies 
tonight with weak troughing of 30.1 inches moving over the lake late 
wednesday as the high shifts east. 30.3 inch ridging builds back in 
for thursday as a 30.5 inch high transits ontario. low pressure of 
29.6 inches moves through the lower great lakes friday. a deepening 
low will then lift into the upper great lakes saturday night into 
sunday.



lsz267-232100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am est tue dec 23 2025

...gale warning in effect until 10 pm est this evening...

.rest of today...west winds 15 to 25 knots increasing to gales to
35 knots by late morning, then becoming northwest gales to
45 knots by mid afternoon. waves 1 to 3 feet building to 12 to
17 feet occasionally to 21 feet. 
.tonight...northwest gales to 40 knots becoming north 20 to
30 knots by midnight, then diminishing to 10 to 20 knots late.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday...south winds 5 to 15 knots increasing to 15 to
25 knots. a chance of snow showers and sleet. waves subsiding to
calm to 2 feet, then building to 2 to 4 feet. 
.wednesday night...west winds 15 to 25 knots veering north after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.thursday...northeast winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to 2 to 4 feet. 
.thursday night...southeast winds 20 to 30 knots increasing to
gales to 35 knots after midnight. snow showers. freezing spray
after midnight. waves building to 5 to 8 feet occasionally to
10 feet. 
.friday...southeast gales to 35 knots diminishing to 20 to
30 knots. snow showers. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 2 to 4 feet. 
.saturday...southeast winds 20 to 30 knots becoming west gales to
40 knots. a chance of snow showers, possibly mixed with rain,
then rain and snow showers. waves building to 9 to 12 feet
occasionally to 15 feet. 

note, wave height forecasts are for ice free areas.

$$