fzus61 kbuf 240302
glflo 
expires:202512241000;;116017

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm 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 29.8 inch surface low over central ontario this afternoon with a 
warm front draped over the lake, will slide off the southern new 
england coastline wednesday as a 29.6 inch surface low. following 
the passage of this system, a 30.3 inch high will then build across 
the lake wednesday, sliding off the atlantic coastline thursday. a 
weak 29.8 inch surface low will slide across southern quebec 
thursday with its associated cold front dropping southward across 
the lake. following this front, a strong 30.5 inch surface high over 
ontario thursday will slide over the lake thursday night and then 
linger just to the east of the lake friday. a compact 29.6 inch 
surface low will slide well south of the lake across ohio and 
southern pennsylvania friday night into saturday. another 29.5 inch 
surface low will pass by to the northeast of the lake sunday.


loz064-065-241000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est tue dec 23 2025

.overnight...west winds to 30 knots becoming northwest. a
chance of rain showers. waves 7 to 10 feet
building to 10 to 13 feet. waves occasionally around 16 feet. 
.wednesday...northwest winds to 30 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 south. waves
2 feet or less. 
.thursday...southwest winds 10 to 15 knots becoming north and
increasing to 15 to 25 knots. waves 1 to 3 feet building to 3 to
5 feet. 
.thursday night...north winds 15 to 25 knots becoming northeast.
waves 3 to 6 feet subsiding to 2 to 4 feet. 
.friday...east winds 15 to 25 knots becoming southeast. a chance
of snow showers during the day, then snow friday night. waves
2 to 4 feet building to 3 to 5 feet. 
.saturday...southeast winds 15 to 20 knots. a chance of snow
showers during the day, then a chance of rain showers saturday
night. waves 2 to 4 feet. 
.sunday...south winds to 30 knots becoming west and increasing to
40 knot gales. rain showers during the day, then snow and rain
showers sunday night. waves 3 to 6 feet building to 15 to
20 feet. waves occasionally around 26 feet. 

$$

fzus61 kbuf 240302
glflo 
expires:202512241000;;116016

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm 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 29.8 inch surface low over central ontario this afternoon with a 
warm front draped over the lake, will slide off the southern new 
england coastline wednesday as a 29.6 inch surface low. following 
the passage of this system, a 30.3 inch high will then build across 
the lake wednesday, sliding off the atlantic coastline thursday. a 
weak 29.8 inch surface low will slide across southern quebec 
thursday with its associated cold front dropping southward across 
the lake. following this front, a strong 30.5 inch surface high over 
ontario thursday will slide over the lake thursday night and then 
linger just to the east of the lake friday. a compact 29.6 inch 
surface low will slide well south of the lake across ohio and 
southern pennsylvania friday night into saturday. another 29.5 inch 
surface low will pass by to the northeast of the lake sunday.


loz063-241000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est tue dec 23 2025

.overnight...west winds to 30 knots becoming northwest.
waves 7 to 10 feet building to 9 to 13 feet. waves occasionally
around 16 feet. 
.wednesday...northwest winds to 30 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 1 to 2 feet. 
.thursday...west winds 10 to 15 knots becoming north 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday night...north winds 15 to 20 knots becoming northeast.
waves 3 to 5 feet. 
.friday...east winds 15 to 25 knots becoming southeast. snow.
waves 3 to 6 feet building to 4 to 7 feet, then subsiding to 3 to
6 feet. waves occasionally around 9 feet. 
.saturday...east winds 15 to 20 knots becoming southeast. a
chance of rain showers saturday night. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.sunday...south winds 15 to 25 knots becoming west and increasing
to 40 knot gales. rain showers during the day, then snow showers
with rain showers likely sunday night. waves 3 to 6 feet building
to 15 to 20 feet. waves occasionally around 26 feet. 

$$

fzus61 kbuf 240302
glflo 
expires:202512241000;;116015

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm 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 29.8 inch surface low over central ontario this afternoon with a 
warm front draped over the lake, will slide off the southern new 
england coastline wednesday as a 29.6 inch surface low. following 
the passage of this system, a 30.3 inch high will then build across 
the lake wednesday, sliding off the atlantic coastline thursday. a 
weak 29.8 inch surface low will slide across southern quebec 
thursday with its associated cold front dropping southward across 
the lake. following this front, a strong 30.5 inch surface high over 
ontario thursday will slide over the lake thursday night and then 
linger just to the east of the lake friday. a compact 29.6 inch 
surface low will slide well south of the lake across ohio and 
southern pennsylvania friday night into saturday. another 29.5 inch 
surface low will pass by to the northeast of the lake sunday.


loz062-241000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est tue dec 23 2025

.overnight...west winds to 30 knots becoming northwest.
waves 5 to 8 feet building to 7 to 10 feet. waves occasionally
around 13 feet. 
.wednesday...northwest winds 15 to 25 knots becoming west and
diminishing to 5 to 10 knots in the afternoon. waves 6 to 9 feet
subsiding to 1 to 3 feet. waves occasionally around 11 feet. 
.wednesday night...southwest winds 10 knots or less becoming
west. waves 1 foot or less. 
.thursday...west winds 10 to 15 knots becoming north. waves 1 to
3 feet. 
.thursday night...north winds 15 to 20 knots becoming east. waves
2 to 4 feet building to 3 to 5 feet. 
.friday...east winds to 30 knots diminishing to 15 to 20 knots.
snow. waves 4 to 7 feet building to 6 to 9 feet, then subsiding
to 4 to 7 feet. waves occasionally around 11 feet. 
.saturday...east winds 10 to 15 knots becoming southeast. a
chance of rain showers saturday night. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.sunday...south winds 15 to 20 knots becoming west and increasing
to 40 knot gales. rain showers during the day, then snow and rain
showers likely sunday night. waves 2 to 4 feet building to 12 to
16 feet. waves occasionally around 20 feet. 

$$

fzus61 kcle 240218
glfle 
expires:202512240930;;114623

open lake forecast for lake erie
national weather service cleveland oh
918 pm 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 weak cold front exits the region tonight. high pressure of 
30.40 inches builds overhead on wednesday before another low 
pressure system of 30.00 inches tracks through central ohio 
wednesday night. this is followed by high pressure of 30.50 inches
building north of the lakes later thursday. the next low of 29.80
inches will weaken as it tracks into the ohio valley on friday. 
low pressure of 29.60 inches will track northeast across lake erie
on sunday, pulling a strong cold front across the area sunday 
into monday.


lez162>164-240930-
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-
918 pm est tue dec 23 2025

.overnight...west winds 5 to 15 knots becoming northwest.
waves in ice free areas 2 feet or less. 
.wednesday...north winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.wednesday night...southeast winds 5 to 10 knots becoming west. a
chance of rain overnight. waves 1 foot or less. 
.thursday...northwest winds 5 to 10 knots becoming north. waves
2 feet or less. 
.thursday night...northeast winds 10 to 15 knots becoming east
15 to 20 knots. a chance of rain, freezing rain and snow
overnight. waves 1 to 3 feet building to 2 to 4 feet. 
.friday...east winds 15 to 20 knots becoming north 5 to 15 knots.
rain and freezing rain during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.saturday...northeast winds 5 to 15 knots becoming south. a
chance of rain saturday night. waves 1 to 3 feet. 
.sunday...west winds 15 to 20 knots increasing to 30 knots. a
chance of rain during the day. waves 2 to 4 feet building to 4 to
7 feet. waves occasionally around 9 feet. 

wave heights are for ice free areas.

$$

fzus61 kcle 240218
glfle 
expires:202512240930;;114624

open lake forecast for lake erie
national weather service cleveland oh
918 pm 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 weak cold front exits the region tonight. high pressure of 
30.40 inches builds overhead on wednesday before another low 
pressure system of 30.00 inches tracks through central ohio 
wednesday night. this is followed by high pressure of 30.50 inches
building north of the lakes later thursday. the next low of 29.80
inches will weaken as it tracks into the ohio valley on friday. 
low pressure of 29.60 inches will track northeast across lake erie
on sunday, pulling a strong cold front across the area sunday 
into monday.


lez165-166-240930-
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-
918 pm est tue dec 23 2025

.overnight...west winds 15 to 20 knots becoming northwest.
waves 2 to 4 feet. 
.wednesday...north winds 5 to 15 knots becoming southeast less
than 10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.wednesday night...southeast winds 5 to 10 knots becoming
southwest. rain likely overnight. waves 1 foot or less. 
.thursday...west winds 5 to 15 knots becoming north. waves 2 feet
or less. 
.thursday night...northeast winds 10 to 15 knots becoming east
15 to 20 knots. waves 2 to 4 feet building to 3 to 5 feet. 
.friday...east winds 15 to 20 knots becoming north 5 to 15 knots.
rain during the day, then a chance of rain friday night. waves
3 to 5 feet subsiding to 1 to 2 feet. 
.saturday...northeast winds 5 to 15 knots becoming south 15 to
20 knots. rain likely saturday night. waves 1 to 2 feet building
to 2 to 4 feet. 
.sunday...west winds to 30 knots increasing to 35 knot gales. a
chance of rain during the day, then a chance of rain and snow
sunday night. waves 4 to 7 feet building to 9 to 12 feet. waves
occasionally around 15 feet. 

$$

fzus61 kcle 240218
glfle 
expires:202512240930;;114625

open lake forecast for lake erie
national weather service cleveland oh
918 pm 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 weak cold front exits the region tonight. high pressure of 
30.40 inches builds overhead on wednesday before another low 
pressure system of 30.00 inches tracks through central ohio 
wednesday night. this is followed by high pressure of 30.50 inches
building north of the lakes later thursday. the next low of 29.80
inches will weaken as it tracks into the ohio valley on friday. 
low pressure of 29.60 inches will track northeast across lake erie
on sunday, pulling a strong cold front across the area sunday 
into monday.


lez061-167>169-240930-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 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-
918 pm est tue dec 23 2025

.overnight...west winds 15 to 25 knots becoming northwest.
waves 3 to 6 feet. 
.wednesday...northwest winds 15 to 20 knots becoming south and
diminishing to 10 knots or less in the afternoon. waves 2 to
4 feet subsiding to 1 foot or less. 
.wednesday night...south winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.thursday...west winds 5 to 15 knots becoming north. waves 2 feet
or less. 
.thursday night...northeast winds 15 to 20 knots becoming east.
waves 2 to 4 feet building to 3 to 5 feet. 
.friday...east winds 15 to 20 knots becoming northeast and
diminishing to 5 to 10 knots. rain with snow likely during the
day, then a chance of rain friday night. waves 3 to 5 feet
subsiding to 2 feet or less. 
.saturday...northeast winds 5 to 10 knots becoming south and
increasing to 15 to 20 knots. rain likely saturday night. waves
2 feet or less building to 2 to 4 feet. 
.sunday...southwest winds to 30 knots becoming west and
increasing to 35 knot gales. rain likely during the day, then a
chance of snow and rain sunday night. waves 4 to 7 feet building
to 10 to 14 feet. waves occasionally around 18 feet. 

$$

fzus63 kdtx 240255
glfsc 
expires:202512241100;;115537

lake st clair forecast
national weather service detroit/pontiac mi
955 pm 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...high pressure, 30.40 inches, will quickly fill in
across the great lakes wednesday morning which will rapidly 
diminish wind speeds and gusts. a secondary high pressure system, 
30.50 inches, will then arrive near the james bay late thursday 
into friday morning. lighter winds prevail through thursday as a 
result.


lcz460-241100-
lake st clair-
955 pm est tue dec 23 2025

.rest of tonight...northwest winds 10 to 15 knots diminishing to 5
to 10 knots early in the morning. partly cloudy. waves 2 feet or
less.
.wednesday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming southeast 5 to 10 knots
late 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 becoming partly cloudy. a chance of
light snow. a chance of light freezing rain by midnight. a chance of
light rain in the late evening and overnight. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots becoming north 10 to 15
knots in the late morning and afternoon. mostly cloudy. waves 2 feet
or less.
.thursday night...northeast winds 10 to 15 knots becoming east 15 to
20 knots after midnight. mostly cloudy. waves 2 feet or less.
.friday...east winds 15 to 20 knots diminishing to 10 to 15 knots in
the afternoon and evening. freezing rain. light rain in the
afternoon and evening. 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.
.sunday...west winds to 30 knots with gusts to 35 knot gales. mostly
cloudy. a chance of light rain and snow. waves 2 to 4 feet.  a gale
warning may be needed.

wave heights are for ice free areas.

$$

fzus63 kdtx 240253
glflh 
expires:202512241100;;115467

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 pm 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...high pressure, 30.40 inches, will quickly fill in
across the great lakes wednesday morning which will rapidly 
diminish wind speeds and gusts. a secondary high pressure system, 
30.50 inches, will then arrive near the james bay late thursday 
into friday morning. lighter winds prevail through thursday as a 
result.


lhz463-464-241100-
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 pm est tue dec 23 2025

.rest of tonight...northwest winds 20 to 25 knots decreasing to
15 to 20 knots early in the morning. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.wednesday...northwest winds 10 to 15 knots becoming north 5 to
10 knots in the late morning and early afternoon...then backing
to the south late in the afternoon. waves 4 to 6 feet subsiding
to 2 to 4 feet late in the afternoon. waves occasionally around
8 feet. 
.wednesday night...south winds 10 to 15 knots. waves 1 to 3 feet.
.thursday...north winds 15 to 20 knots. waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon. 
.thursday night...northeast winds 15 to 20 knots veering to the
southeast after midnight. waves 3 to 5 feet. 
.friday...southeast winds 20 to 25 knots with gusts to around
30 knots becoming east 5 to 10 knots. freezing rain and snow
likely in the morning...then snow...freezing rain and rain late
in the morning. waves 4 to 6 feet. waves occasionally around
8 feet. 
.saturday...east winds 5 to 10 knots becoming southeast 10 to
15 knots until early evening...then increasing to 15 to 20 knots
by midnight. a chance of rain . waves 1 to 3 feet building to
3 to 5 feet by midnight. 
.sunday...south winds 15 to 20 knots veering to the west with
gusts to around 30 knots in the late morning and early
afternoon...then increasing to 30 knots with gusts to 40 knot
gales early in the evening increasing to 35 knot gales with gusts
to 40 knot gales by midnight. a chance of rain. a chance of snow.
waves 5 to 7 feet building to 10 to 14 feet . waves occasionally
around 18 feet. a gale warning may be needed. 


$$

fzus63 kdtx 240253
glflh 
expires:202512241100;;115466

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 pm 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...high pressure, 30.40 inches, will quickly fill in
across the great lakes wednesday morning which will rapidly 
diminish wind speeds and gusts. a secondary high pressure system, 
30.50 inches, will then arrive near the james bay late thursday 
into friday morning. lighter winds prevail through thursday as a 
result.


lhz363-462-241100-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
953 pm est tue dec 23 2025

.rest of tonight...northwest winds 20 to 25 knots with gusts to
around 30 knots decreasing to 15 to 20 knots early in the
morning. waves 10 to 14 feet. waves occasionally around 18 feet. 
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then veering to the northeast
early in the afternoon veering to the south late in the
afternoon. waves 5 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 10 feet. 
.wednesday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.thursday...north winds 15 to 20 knots. waves 2 to 4 feet. 
.thursday night...northeast winds 15 to 20 knots veering to the
east after midnight. waves 4 to 6 feet. 
.friday...southeast winds 20 to 25 knots becoming east 5 to
10 knots. a chance of snow in the morning...then rain late in the
morning. snow late in the morning. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...east winds 5 to 10 knots becoming southeast 10 to
15 knots until early evening...then increasing to 15 to 20 knots
by midnight. a chance of rain . waves 2 to 4 feet building to
3 to 5 feet . 
.sunday...south winds 15 to 20 knots becoming west 20 to 25 knots
with gusts to around 30 knots in the late morning and early
afternoon...then increasing to 35 knot gales with gusts to
40 knot gales . a chance of rain. a chance of snow. waves 5 to
7 feet building to 12 to 16 feet. waves occasionally around
20 feet. a gale warning may be needed. 


$$

fzus63 kdtx 240253
glflh 
expires:202512241100;;115465

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 pm 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...high pressure, 30.40 inches, will quickly fill in
across the great lakes wednesday morning which will rapidly 
diminish wind speeds and gusts. a secondary high pressure system, 
30.50 inches, will then arrive near the james bay late thursday 
into friday morning. lighter winds prevail through thursday as a 
result.


lhz361-362-241100-
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 pm est tue dec 23 2025

...gale warning in effect until midnight est tonight...

.rest of tonight...northwest winds to 35 knot gales becoming 
north 15 to 20 knots. waves 10 to 14 feet. waves occasionally 
around 18 feet. 
.wednesday...north winds 5 to 10 knots veering to the southeast
early in the afternoon...then becoming south 10 to 15 knots late
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 2 to 4 feet. 
.thursday...north winds 15 to 20 knots becoming northeast 10 to
15 knots early in the afternoon. waves 2 to 4 feet. 
.thursday night...northeast winds 15 to 20 knots veering to the
east by midnight...then increasing to 20 to 25 knots with gusts
to around 30 knots after midnight. a chance of snow after
midnight. waves 4 to 6 feet building to 6 to 9 feet after
midnight. waves occasionally around 12 feet. 
.friday...southeast winds 20 to 25 knots with gusts to around
30 knots becoming east 10 to 15 knots. snow. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.saturday...east winds 10 to 15 knots becoming southeast 15 to
20 knots . a chance of rain . waves 3 to 5 feet. 
.sunday...south winds 15 to 20 knots becoming west 20 to 25 knots
with gusts to around 30 knots in the late morning and early
afternoon...then increasing to 35 knot gales with gusts to
40 knot gales . a chance of rain and snow until afternoon...then
a chance of snow . waves 5 to 7 feet building to 12 to 16 feet.
waves occasionally around 20 feet. a gale warning may be needed. 


$$

fzus63 kmkx 240247
glflm 
expires:202512241045;;115313

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
847 pm 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...

high pressure around 30.4 inches will cross the great lakes 
tonight. a weak low pressure trough around 30.0 inches will cross
lake michigan wednesday evening, and then another high pressure 
system around 30.5 inches will bring a push of northerly winds
down the lake early thursday morning. weak low pressure of 29.7 
inches will cross illinois and indiana on friday. there is a 
chance for gales sunday through monday as low deepens to 29.3 
inches as it crosses ontario and 29.1 inches over quebec.


lmz080-669-671-673-675-777-779-870-872-874-876-878-241045-
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-
847 pm cst tue dec 23 2025

sheboygan wi to pentwater mi south...

.rest of tonight...northwest winds 10 to 20 kt becoming northeast
10 to 15 kt. waves 3 to 5 ft. 
.wednesday...east winds 10 to 15 kt becoming southeast 10 to
20 kt. waves 2 to 4 ft. 
.wednesday night...south winds 10 to 20 kt backing to north.
chance of rain in the evening. waves 2 to 4 ft. 
.thursday...northeast winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.thursday night...east winds to 30 kt becoming southeast. rain
likely with a chance of light freezing rain overnight. waves 6 to
9 ft occasionally to 12 ft. 
.friday...southeast winds to 30 kt becoming east 10 to 20 kt in
the afternoon. rain likely in the morning. waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.friday night...northeast winds 5 to 10 kt becoming east. waves
2 to 4 ft subsiding to 1 to 2 ft. 
.saturday...southeast winds 10 to 20 kt. waves 2 to 4 ft. 
.sunday...northwest gales to 40 kt becoming west gales to 45 kt.
waves 10 to 14 ft occasionally to 18 ft building to 14 to 18 ft
occasionally to 23 ft.  

$$

fzus63 kmkx 240247
glflm 
expires:202512241045;;115312

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
847 pm 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...

high pressure around 30.4 inches will cross the great lakes 
tonight. a weak low pressure trough around 30.0 inches will cross
lake michigan wednesday evening, and then another high pressure 
system around 30.5 inches will bring a push of northerly winds
down the lake early thursday morning. weak low pressure of 29.7 
inches will cross illinois and indiana on friday. there is a 
chance for gales sunday through monday as low deepens to 29.3 
inches as it crosses ontario and 29.1 inches over quebec.


lmz261-362-364-366-563-565-567-868-241045-
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-
847 pm cst tue dec 23 2025

sheboygan wi to pentwater mi north...

.rest of tonight...northwest winds to 30 kt becoming north 15 to
25 kt late this evening, then diminishing to 10 to 20 kt after
midnight and 5 to 10 kt late. waves 3 to 5 ft subsiding to 2 to 4
ft. 
.wednesday...east winds 5 to 10 kt becoming south 10 to 20 kt
from late morning on. chance of light freezing rain and snow in
the morning, then chance of snow in the afternoon. waves 2 to
4 ft. 
.wednesday night...south winds 10 to 20 kt veering to north.
chance of rain in the evening. waves 2 to 4 ft. 
.thursday...northeast winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.thursday night...southeast winds to 30 kt. chance of snow, rain
and light freezing rain overnight. waves 4 to 7 ft occasionally
to 9 ft building to 6 to 9 ft occasionally to 12 ft. 
.friday...southeast winds to 30 kt diminishing to 15 to 25 kt.
rain, snow and light freezing rain likely in the morning, then
chance of rain and snow in the afternoon. waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.friday night...east winds 10 to 15 kt becoming southeast 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.saturday...southeast winds 10 to 20 kt. waves 1 to 3 ft building
to 2 to 4 ft. 
.sunday...west gales to 35 kt increasing to gales to 40 kt.
freezing spray. chance of snow. waves 8 to 11 ft occasionally to
14 ft building to 10 to 14 ft occasionally to 18 ft.  

$$

fzus63 kmqt 240301
glfls 
expires:202512240900;;115845

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 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. 30.4 inch ridging 
builds back 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.



lsz265-240900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est tue dec 23 2025

.rest of tonight...northwest winds 20 to 30 knots becoming north
10 to 20 knots by midnight, then diminishing to 5 to 15 knots
late. waves 5 to 8 feet occasionally to 10 feet subsiding to 1 to
3 feet. 
.wednesday...south winds 5 to 15 knots increasing to 15 to
25 knots by late morning, then becoming southwest 10 to 20 knots
by mid afternoon. a slight chance of snow showers. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.wednesday night...west winds 10 to 20 knots becoming north 15 to
25 knots by midnight, then increasing to 20 to 30 knots late.
waves building to 3 to 6 feet occasionally to 8 feet. 
.thursday...northeast winds 20 to 30 knots becoming east 15 to
25 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. waves building to 7 to
10 feet occasionally to 13 feet. 
.friday...south gales to 35 knots diminishing to 15 to 25 knots
in the afternoon. snow likely in the morning, then a chance of
snow in the afternoon. waves subsiding to 2 to 4 feet. 
.friday night...south winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.saturday...south winds 15 to 25 knots becoming west gales to
45 knots. a chance of rain showers. a chance of snow showers.
waves building to 7 to 10 feet occasionally to 13 feet. 
.sunday...west storm force winds to 50 knots veering northwest.
heavy freezing spray. snow showers likely. waves building to
15 to 20 feet occasionally to 25 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 240301
glfls 
expires:202512240900;;115846

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 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. 30.4 inch ridging 
builds back 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.



lsz266-240900-
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 pm est tue dec 23 2025

.rest of tonight...north winds 20 to 30 knots diminishing to 5 to
15 knots. waves 10 to 14 feet occasionally to 18 feet subsiding
to 2 to 4 feet. 
.wednesday...south winds 10 to 20 knots increasing to 15 to
25 knots by late morning, then veering southwest by mid
afternoon. a slight chance of snow showers. 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 by midnight, then increasing to 20 to 30 knots late.
freezing spray after midnight. waves subsiding to 2 to 4 feet,
then building to 4 to 7 feet occasionally to 9 feet. 
.thursday...northeast winds 15 to 25 knots veering east in the
afternoon. freezing spray in the morning. 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. waves building to 9 to
12 feet occasionally to 15 feet. 
.friday...southeast gales to 35 knots becoming south 20 to
30 knots in the afternoon. snow in the morning, then a chance of
snow in the afternoon. waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.friday night...south winds 10 to 20 knots. waves subsiding to
2 to 4 feet. 
.saturday...south winds 20 to 30 knots increasing to gales to
40 knots. a chance of rain showers. waves building to 7 to
10 feet occasionally to 13 feet. 
.sunday...west storm force winds to 55 knots veering northwest.
heavy freezing spray. snow showers likely. a chance of snow
showers. waves building to 17 to 22 feet occasionally to 28 feet.

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 240301
glfls 
expires:202512240900;;115847

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 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. 30.4 inch ridging 
builds back 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.



lsz267-240900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est tue dec 23 2025

.rest of tonight...north winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 5 to 15 knots. waves
10 to 14 feet occasionally to 18 feet subsiding to 2 to 4 feet. 
.wednesday...south winds 5 to 15 knots increasing to 15 to
25 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.wednesday night...southwest winds 15 to 25 knots veering
northwest by midnight, then becoming north 20 to 30 knots late.
waves building to 3 to 6 feet occasionally to 8 feet. 
.thursday...northeast winds 15 to 25 knots becoming east 10 to
20 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.thursday night...southeast winds 15 to 25 knots increasing to
gales to 35 knots after midnight. a chance of snow in the
evening, then snow after midnight. freezing spray after midnight.
waves building to 6 to 9 feet occasionally to 11 feet. 
.friday...southeast gales to 35 knots diminishing to 20 to
30 knots in the afternoon. snow. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday night...southeast winds 15 to 25 knots. waves subsiding
to 2 to 4 feet. 
.saturday...southeast winds 20 to 30 knots becoming south gales
to 35 knots. a chance of rain and snow showers. waves building to
5 to 8 feet occasionally to 10 feet. 
.sunday...west gales to 45 knots veering northwest. freezing
spray. snow showers. waves building to 17 to 22 feet occasionally
to 28 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 240301
glfls 
expires:202512240900;;115843

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 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. 30.4 inch ridging 
builds back 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.



lsz263-240900-
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 pm est tue dec 23 2025

.rest of tonight...north winds 5 to 15 knots veering south late.
waves 2 to 4 feet subsiding to calm to 2 feet. 
.wednesday...south winds 5 to 15 knots becoming southwest 10 to
20 knots by late morning, then veering west by mid afternoon. a
slight chance of snow showers in the morning. waves calm to
2 feet. 
.wednesday night...northwest winds 10 to 20 knots becoming north
15 to 25 knots by 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, then building to 3 to
5 feet occasionally to 7 feet. 
.thursday night...southeast winds 20 to 30 knots. snow. waves
building to 7 to 10 feet occasionally to 13 feet. 
.friday...south winds 15 to 25 knots diminishing to 5 to 15 knots
in the afternoon. a chance of snow. waves subsiding to 2 to
4 feet. 
.friday night...south winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.saturday...south winds 10 to 20 knots becoming west gales to
40 knots. a chance of rain showers. freezing spray. waves
building to 8 to 11 feet occasionally to 14 feet. 
.sunday...west gales to 45 knots veering northwest. heavy
freezing spray. a chance of snow showers. waves building to 12 to
17 feet occasionally to 21 feet, then subsiding to 9 to 12 feet
occasionally to 15 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 240301
glfls 
expires:202512240900;;115842

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 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. 30.4 inch ridging 
builds back 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.



lsz162-240900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est tue dec 23 2025 /900 pm cst tue dec 23 2025/

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 240301
glfls 
expires:202512240900;;115844

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 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. 30.4 inch ridging 
builds back 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.



lsz264-240900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est tue dec 23 2025

.rest of tonight...north winds 15 to 25 knots diminishing to
10 to 20 knots by midnight, then becoming south 5 to 15 knots
late. waves 4 to 7 feet occasionally to 9 feet subsiding to calm
to 2 feet. 
.wednesday...south winds 5 to 15 knots increasing to 10 to
20 knots by late morning, then veering southwest by mid
afternoon. a slight chance of snow showers in the morning. waves
building to 1 to 3 feet. 
.wednesday night...northwest winds 10 to 20 knots becoming north
15 to 25 knots by midnight. waves building to 3 to 6 feet
occasionally to 8 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. waves building to 9 to
12 feet occasionally to 15 feet. 
.friday...south gales to 35 knots diminishing to 15 to 25 knots
in the afternoon. snow likely in the morning, then a chance of
snow in the afternoon. waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves subsiding to 2 to 4 feet. 
.saturday...south winds 15 to 25 knots becoming west gales to
35 knots. a chance of rain showers. waves building to 8 to
11 feet occasionally to 14 feet. 
.sunday...west gales to 45 knots veering northwest. heavy
freezing spray. a chance of snow showers. waves building to 12 to
17 feet occasionally to 21 feet. 

note, wave height forecasts are for ice free areas.

$$