fzus61 kbuf 200302
glflo 
expires:202512201000;;891845

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est fri dec 19 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 28.9 inch low over central quebec will continue 
to move east tonight. in its wake, a 30.1 inch high will slowly 
build across the lake tonight and early saturday, before drifting 
off the atlantic coastline later saturday and saturday night. a 29.5 
inch low moving across ontario and quebec will push its attendant 
cold front across the lake sunday. a large 30.6 inch high will then 
build east across the lake 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.


loz064-065-201000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est fri dec 19 2025

...gale warning in effect until 3 am est saturday...
...gale watch in effect from saturday evening through sunday
evening...

.rest of tonight...west gales to 40 knots diminishing to
30 knots. snow showers likely late this evening, then a chance of
snow showers after midnight. waves 15 to 20 feet subsiding to
10 to 14 feet. waves occasionally around 26 feet. 
.saturday...west winds 15 to 20 knots becoming south and
increasing to 30 knots. waves 6 to 9 feet subsiding to 4 to
7 feet. waves occasionally around 11 feet. 
.saturday night...south winds to 30 knots becoming west and
increasing to 35 knot gales overnight. a chance of rain and snow
showers. waves 5 to 8 feet building to 12 to 16 feet. waves
occasionally around 20 feet. 
.sunday...west gales to 35 knots. lake effect snow showers
likely. waves 13 to 17 feet. waves occasionally around 22 feet. 
.sunday night...northwest gales to 35 knots diminishing to 15 to
25 knots. a chance of snow showers in the evening. waves 11 to
15 feet subsiding to 4 to 7 feet. waves occasionally around
19 feet. 
.monday...west winds 10 to 15 knots becoming south 15 to
20 knots. snow showers likely monday night. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots becoming northwest to
30 knots. rain and snow showers during the day, then a chance of
rain showers tuesday night. waves 3 to 5 feet building to 6 to
10 feet. waves occasionally around 13 feet. 
.wednesday...northwest winds 15 to 20 knots becoming south 5 to
15 knots. a chance of rain showers wednesday night. waves 4 to
7 feet subsiding to 1 to 3 feet. waves occasionally around
9 feet. 

$$

fzus61 kbuf 200302
glflo 
expires:202512201000;;891844

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est fri dec 19 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 28.9 inch low over central quebec will continue 
to move east tonight. in its wake, a 30.1 inch high will slowly 
build across the lake tonight and early saturday, before drifting 
off the atlantic coastline later saturday and saturday night. a 29.5 
inch low moving across ontario and quebec will push its attendant 
cold front across the lake sunday. a large 30.6 inch high will then 
build east across the lake 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.


loz063-201000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est fri dec 19 2025

...gale warning in effect until 3 am est saturday...
...gale watch in effect from saturday evening through sunday
evening...

.rest of tonight...west gales to 40 knots diminishing to
30 knots. a chance of snow showers. waves 14 to 19 feet subsiding
to 10 to 13 feet. waves occasionally around 24 feet. 
.saturday...west winds 15 to 25 knots becoming south. waves 5 to
8 feet subsiding to 3 to 5 feet. waves occasionally around
10 feet. 
.saturday night...south winds to 30 knots becoming west and
increasing to 35 knot gales overnight. a chance of rain and snow
showers in the evening. waves 3 to 6 feet building to 12 to
16 feet. waves occasionally around 20 feet. 
.sunday...west gales to 35 knots. lake effect snow showers
likely. waves 12 to 17 feet. waves occasionally around 22 feet. 
.sunday night...northwest winds to 30 knots diminishing to 15 to
25 knots. a chance of snow showers. waves 10 to 14 feet subsiding
to 3 to 6 feet. waves occasionally around 18 feet. 
.monday...west winds 10 to 15 knots becoming south 15 to
20 knots. snow and rain showers likely monday night. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.tuesday...south winds 15 to 25 knots becoming northwest. rain
and snow showers likely during the day, then a chance of rain
showers tuesday night. waves 2 to 4 feet building to 5 to 9 feet.
waves occasionally around 11 feet. 
.wednesday...northwest winds 15 to 20 knots becoming south 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 

$$

fzus61 kbuf 200302
glflo 
expires:202512201000;;891843

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est fri dec 19 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 28.9 inch low over central quebec will continue 
to move east tonight. in its wake, a 30.1 inch high will slowly 
build across the lake tonight and early saturday, before drifting 
off the atlantic coastline later saturday and saturday night. a 29.5 
inch low moving across ontario and quebec will push its attendant 
cold front across the lake sunday. a large 30.6 inch high will then 
build east across the lake 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.


loz062-201000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est fri dec 19 2025

...gale warning in effect until 3 am est saturday...
...gale watch in effect from saturday evening through sunday
evening...

.rest of tonight...west gales to 35 knots diminishing to 15 to
25 knots. a chance of snow showers late this evening. waves 12 to
16 feet subsiding to 7 to 10 feet. waves occasionally around
20 feet. 
.saturday...southwest winds 10 to 15 knots increasing to 15 to
25 knots. waves 3 to 6 feet. 
.saturday night...southwest winds to 30 knots becoming west and
increasing to 35 knot gales overnight. a chance of rain showers
in the evening. waves 6 to 9 feet building to 10 to 15 feet.
waves occasionally around 19 feet. 
.sunday...west gales to 35 knots. a chance of snow showers. waves
10 to 15 feet subsiding to 9 to 12 feet. waves occasionally
around 19 feet. 
.sunday night...west winds to 30 knots diminishing to 10 to
15 knots. a chance of snow showers in the evening. waves 8 to
11 feet subsiding to 3 to 6 feet. waves occasionally around
14 feet. 
.monday...west winds 10 to 15 knots becoming south. snow and rain
showers likely monday night. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.tuesday...southwest winds 15 to 25 knots becoming northwest.
rain and snow showers likely during the day. waves 2 to 4 feet
building to 3 to 6 feet. 
.wednesday...northwest winds 5 to 15 knots becoming southeast. a
chance of rain showers wednesday night. waves 2 to 4 feet
subsiding to 2 feet or less. 

$$

fzus61 kcle 200318
glfle 
expires:202512200930;;892783

open lake forecast for lake erie
national weather service cleveland oh
1018 pm est fri dec 19 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 of 30.20 inches will build across the region into
saturday. low pressure 29.40 inches will then track east through 
the great lakes, extending a cold front across lake erie saturday
night. high pressure 30.50 inches will build across ohio sunday 
into monday, followed by another low pressure moving east through
the upper great lakes late monday into tuesday.


lez164>166-200930-
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-
1018 pm est fri dec 19 2025

.overnight...west winds 15 to 25 knots becoming south.
waves 6 to 9 feet subsiding to 2 to 4 feet. waves occasionally
around 11 feet. 
.saturday...south winds 15 to 25 knots becoming southwest to
30 knots. waves 3 to 5 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.saturday night...southwest winds 15 to 25 knots becoming west.
waves 5 to 9 feet building to 7 to 10 feet. waves occasionally
around 13 feet. 
.sunday...west winds 15 to 25 knots. waves 6 to 9 feet subsiding
to 3 to 6 feet. waves occasionally around 11 feet. 
.sunday night...west winds 5 to 15 knots becoming southwest.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. rain likely with a chance of snow monday night. waves
1 to 3 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest 5 to
15 knots. waves 3 to 5 feet subsiding to 2 feet or less. 
.wednesday...east winds 5 to 15 knots becoming south. rain likely
wednesday night. waves 1 to 3 feet. 

$$

fzus61 kcle 200318
glfle 
expires:202512200930;;892784

open lake forecast for lake erie
national weather service cleveland oh
1018 pm est fri dec 19 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 of 30.20 inches will build across the region into
saturday. low pressure 29.40 inches will then track east through 
the great lakes, extending a cold front across lake erie saturday
night. high pressure 30.50 inches will build across ohio sunday 
into monday, followed by another low pressure moving east through
the upper great lakes late monday into tuesday.


lez167>169-200930-
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-
1018 pm est fri dec 19 2025

.overnight...west winds to 30 knots becoming southwest and
diminishing to 10 to 15 knots. waves 9 to 12 feet
subsiding to 3 to 6 feet. waves occasionally around 15 feet. 
.saturday...south winds 15 to 25 knots becoming southwest. waves
3 to 5 feet building to 5 to 8 feet. waves occasionally around
10 feet. 
.saturday night...southwest winds to 30 knots becoming west.
waves 6 to 9 feet building to 8 to 12 feet. waves occasionally
around 15 feet. 
.sunday...west winds 15 to 25 knots. waves 9 to 12 feet subsiding
to 5 to 8 feet. waves occasionally around 15 feet. 
.sunday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. rain likely with a chance of snow monday night. waves
1 to 3 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of rain during the day. waves 3 to
6 feet subsiding to 1 to 3 feet. 
.wednesday...north winds 5 to 15 knots becoming south. a chance
of rain wednesday night. waves 2 feet or less. 

$$

fzus61 kcle 200318
glfle 
expires:202512200930;;892782

open lake forecast for lake erie
national weather service cleveland oh
1018 pm est fri dec 19 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 of 30.20 inches will build across the region into
saturday. low pressure 29.40 inches will then track east through 
the great lakes, extending a cold front across lake erie saturday
night. high pressure 30.50 inches will build across ohio sunday 
into monday, followed by another low pressure moving east through
the upper great lakes late monday into tuesday.


lez162-163-200930-
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-
1018 pm est fri dec 19 2025

.overnight...west winds 15 to 20 knots becoming south 10 to
15 knots. waves in ice free areas 1 to 3 feet. 
.saturday...south winds 15 to 20 knots becoming southwest. waves
1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.saturday night...southwest winds 15 to 20 knots becoming west.
waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.sunday night...west winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.monday...south winds 5 to 15 knots becoming southwest. a chance
of rain monday night. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots becoming northwest.
waves 2 feet or less. 
.wednesday...east winds 5 to 15 knots becoming south. a chance of
rain wednesday night. waves 1 foot or less. 

wave heights are for ice free areas.

$$

fzus61 kcle 200318
glfle 
expires:202512200930;;892785

open lake forecast for lake erie
national weather service cleveland oh
1018 pm est fri dec 19 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 of 30.20 inches will build across the region into
saturday. low pressure 29.40 inches will then track east through 
the great lakes, extending a cold front across lake erie saturday
night. high pressure 30.50 inches will build across ohio sunday 
into monday, followed by another low pressure moving east through
the upper great lakes late monday into tuesday.


lez061-200930-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
1018 pm est fri dec 19 2025

...gale warning in effect until midnight est tonight...
...gale watch in effect from saturday afternoon through sunday
morning...

.overnight...west gales to 35 knots diminishing to 15 to 20 
knots. waves 10 to 13 feet subsiding to 4 to 7 feet. waves 
occasionally around 16 feet. 
.saturday...south winds 15 to 25 knots becoming southwest. waves
3 to 6 feet building to 5 to 8 feet. waves occasionally around
10 feet. 
.saturday night...southwest winds 30 to 35 knots becoming west. 
waves 7 to 10 feet building to 9 to 13 feet. waves occasionally 
around 16 feet. 
.sunday...west winds 30 to 35 knots. waves 8 to 12 feet subsiding
to 5 to 8 feet. waves occasionally around 15 feet. 
.sunday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.monday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. rain likely with a chance of snow monday night. waves
2 to 4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of rain during the day. waves 3 to
6 feet subsiding to 2 to 4 feet. 
.wednesday...northwest winds 10 knots or less becoming south
10 to 15 knots. a chance of rain wednesday night. waves 2 feet or
less. 

$$

fzus63 kdtx 200208
glfsc 
expires:202512201015;;890155

lake st clair forecast
national weather service detroit/pontiac mi
908 pm est fri dec 19 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, 29.30 inches, will track across northern
ontario saturday, driving a weak cold front across the great
lakes. despite the weak nature of the front, strong wind fields
will be present ahead and in the wake of the front, leading to
another round of gales on lake huron saturday and saturday night.
high pressure, 30.50 inches, will expand into the western great
lakes on sunday, bringing dry conditions and weakening winds.


lcz460-201015-
lake st clair-
908 pm est fri dec 19 2025

.rest of tonight...southwest winds 10 to 15 knots backing to the
south early in the morning. mostly cloudy this evening becoming
partly cloudy. waves 2 feet or less.
.saturday...south winds 15 to 20 knots. mostly cloudy. waves 1 to 3
feet.
.saturday night...southwest winds 15 to 20 knots becoming west 20 to
25 knots with gusts to 30 knots in the late evening and overnight.
partly cloudy. waves 2 to 4 feet. 
.sunday...west winds 20 to 25 knots diminishing to 10 to 15 knots.
partly sunny until late afternoon then clearing. waves 1 to 3 feet.
.sunday night...west winds 5 to 10 knots backing to the southwest
after midnight. mostly clear. waves 2 feet or less.
.monday...southwest winds 5 to 10 knots becoming south 10 to 15
knots in the afternoon and evening. mostly cloudy. a chance of light
snow in the afternoon. a chance of light rain and snow in the
evening. waves 2 feet or less.
.tuesday...northwest winds 10 to 15 knots. mostly cloudy with a
chance of light rain and snow. waves 2 feet or less.
.wednesday...southeast winds 5 to 10 knots. mostly cloudy with a
chance of light rain. waves 2 feet or less.

wave heights are for ice free areas.

$$

fzus63 kdtx 200208
glflh 
expires:202512201015;;890101

open lake forecast for lake huron
national weather service detroit/pontiac mi
908 pm est fri dec 19 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, 29.30 inches, will track across northern
ontario saturday, driving a weak cold front across the great
lakes. despite the weak nature of the front, strong wind fields
will be present ahead and in the wake of the front, leading to
another round of gales on lake huron saturday and saturday night.
high pressure, 30.50 inches, will expand into the western great
lakes on sunday, bringing dry conditions and weakening winds.


lhz361-362-201015-
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-
908 pm est fri dec 19 2025

...gale warning in effect from saturday afternoon through sunday
morning...

.rest of tonight...west winds 15 to 20 knots decreasing to 10 to
15 knots after midnight...then becoming south 15 to 20 knots
early in the morning. waves 10 to 14 feet subsiding to 3 to
5 feet. waves occasionally around 18 feet. 
.saturday...south winds 20 to 25 knots with gusts to 35 knot
gales. snow likely in the morning...then a chance of snow and
rain in the afternoon. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.saturday night...southwest winds to 30 knots becoming west at
35 knot gales in the late evening and overnight. gusts to 40 knot
gales. freezing spray after midnight. waves 12 to 16 feet. waves
occasionally around 20 feet. a gale warning may be needed. 
.sunday...west winds to 30 knots with gusts to 35 knot gales
becoming northwest 15 to 20 knots. freezing spray in the morning.
waves 12 to 16 feet subsiding to 8 to 12 feet early in the
afternoon. waves occasionally around 20 feet. 
.sunday night...west winds 10 to 15 knots backing to the
southwest after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.monday...southwest winds 15 to 20 knots backing to the south
late in the evening. a chance of snow late in the morning. snow
likely late in the afternoon. waves 4 to 6 feet. 
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots in the late morning and early afternoon...then
increasing to 20 to 25 knots early in the evening becoming
northwest 10 to 15 knots by midnight. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.wednesday...north winds 5 to 10 knots veering to the east in the
late morning and early afternoon...then becoming south 10 to
15 knots . waves 3 to 5 feet subsiding to 1 to 3 feet until early
evening...then building to 2 to 4 feet by midnight. 


$$

fzus63 kdtx 200208
glflh 
expires:202512201015;;890102

open lake forecast for lake huron
national weather service detroit/pontiac mi
908 pm est fri dec 19 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, 29.30 inches, will track across northern
ontario saturday, driving a weak cold front across the great
lakes. despite the weak nature of the front, strong wind fields
will be present ahead and in the wake of the front, leading to
another round of gales on lake huron saturday and saturday night.
high pressure, 30.50 inches, will expand into the western great
lakes on sunday, bringing dry conditions and weakening winds.


lhz363-462>464-201015-
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-
908 pm est fri dec 19 2025

...gale warning in effect from 7 am est saturday through late
saturday night...

.rest of tonight...west winds 15 to 20 knots decreasing to 10 to
15 knots after midnight...then becoming south 15 to 20 knots
early in the morning. waves 10 to 14 feet subsiding to 4 to
6 feet. waves occasionally around 18 feet. 
.saturday...south winds 20 to 25 knots increasing to 30 knots in
the late morning and afternoon. gusts to 35 knot gales. a chance
of snow in the morning...then a chance of snow and rain in the
afternoon. waves 8 to 12 feet. waves occasionally around 15 feet.
.saturday night...west winds to 30 knots with gusts to 40 knot
gales. a chance of rain and snow in the evening. freezing spray
after midnight. waves 10 to 14 feet. waves occasionally around
18 feet. 
.sunday...west winds to 30 knots decreasing to 15 to 20 knots.
freezing spray in the morning. waves 10 to 14 feet. waves
occasionally around 18 feet. 
.sunday night...west winds 10 to 15 knots backing to the
southwest after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.monday...southwest winds 15 to 20 knots backing to the south
late in the evening. a chance of snow. a chance of rain late in
the evening. waves 4 to 6 feet. waves occasionally around 8 feet.
.tuesday...southwest winds 15 to 20 knots veering to the west
early in the evening...then becoming northwest 10 to 15 knots by
midnight. waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...northwest winds 5 to 10 knots veering to the east in
the late morning and early afternoon...then becoming south 10 to
15 knots . waves 3 to 5 feet subsiding to 2 to 4 feet. 


$$

fzus63 kmkx 200257
glflm 
expires:202512201015;;891394

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 pm cst fri dec 19 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 west to turning to southerly winds are expected this evening
as a surface ridge around 30 inches crosses the lake. winds will
then quickly increase following the surface ridge overnight and
southerly gales are anticipated to begin during the early morning
hours on sunday. these southerly gales are expected to last until
around midday on sunday, before a lull in wind speeds takes hold
as a cold front moves through. then, west to northwest gales are
expected late saturday afternoon into the overnight hours
following the cold front. a gale warning is in effect for all of
lake michigan from early saturday into early sunday to encompass
both periods of gales.

northwest winds will then slowly ease on sunday as high pressure
of 30.4 inches moves into the upper great lakes region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-201015-
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-
857 pm cst fri dec 19 2025

sheboygan wi to pentwater mi south...

...gale warning in effect from 1 am cst saturday through late
saturday night...

.rest of tonight...southwest winds 10 to 15 kt becoming south
gales to 40 kt. slight chance of snow overnight. waves 3 to 5 ft
building to 10 to 14 ft occasionally to 18 ft. 
.saturday...southwest gales to 40 kt diminishing to gales to
35 kt late in the morning, then becoming west to 30 kt early in
the afternoon increasing to gales to 40 kt late. slight chance of
rain and snow in the morning, then chance of snow and slight
chance of rain in the afternoon. waves 10 to 14 ft occasionally
to 18 ft subsiding to 7 to 10 ft occasionally to 13 ft. 
.saturday night...west gales to 40 kt becoming northwest to
30 kt. freezing spray overnight. waves 10 to 14 ft occasionally
to 18 ft. 
.sunday...northwest winds to 30 kt becoming west 10 to 20 kt in
the afternoon. freezing spray in the morning. waves 8 to 11 ft
occasionally to 14 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.sunday night...southwest winds 10 to 20 kt becoming south. waves
2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.monday...south winds to 30 kt. chance of snow. waves 6 to 9 ft
occasionally to 12 ft. 
.monday night...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.tuesday...west winds 10 to 20 kt becoming northwest. waves 4 to
6 ft occasionally to 8 ft. 
.wednesday...southeast winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 200257
glflm 
expires:202512201015;;891393

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 pm cst fri dec 19 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 west to turning to southerly winds are expected this evening
as a surface ridge around 30 inches crosses the lake. winds will
then quickly increase following the surface ridge overnight and
southerly gales are anticipated to begin during the early morning
hours on sunday. these southerly gales are expected to last until
around midday on sunday, before a lull in wind speeds takes hold
as a cold front moves through. then, west to northwest gales are
expected late saturday afternoon into the overnight hours
following the cold front. a gale warning is in effect for all of
lake michigan from early saturday into early sunday to encompass
both periods of gales.

northwest winds will then slowly ease on sunday as high pressure
of 30.4 inches moves into the upper great lakes region.


lmz261-362-364-366-563-565-567-868-201015-
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-
857 pm cst fri dec 19 2025

sheboygan wi to pentwater mi north...

...gale warning in effect from 1 am cst saturday through late
saturday night...

.rest of tonight...southwest winds 10 to 15 kt becoming south
15 to 25 kt late this evening, then increasing to gales to 35 kt
after midnight increasing to gales to 40 kt late. slight chance
of snow overnight. waves 3 to 5 ft building to 10 to 14 ft
occasionally to 18 ft. 
.saturday...south gales to 35 kt becoming west gales to 40 kt.
chance of snow in the morning, then slight chance of snow in the
afternoon. waves 10 to 14 ft occasionally to 18 ft subsiding to
8 to 11 ft occasionally to 14 ft. 
.saturday night...west gales to 45 kt becoming northwest gales to
40 kt. freezing spray. waves 10 to 14 ft occasionally to 18 ft
subsiding to 8 to 11 ft occasionally to 14 ft. 
.sunday...northwest winds to 30 kt becoming west 10 to 20 kt in
the afternoon. freezing spray in the morning. waves 6 to 9 ft
occasionally to 12 ft subsiding to 3 to 5 ft. 
.sunday night...southwest winds 10 to 20 kt increasing to 15 to
25 kt. waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft. 
.monday...southwest winds 15 to 25 kt becoming south. chance of
snow in the morning, then snow likely in the afternoon. waves
6 to 9 ft occasionally to 12 ft. 
.monday night...south winds 10 to 20 kt becoming southwest.
chance of snow. waves 5 to 8 ft occasionally to 10 ft subsiding
to 4 to 7 ft occasionally to 9 ft. 
.tuesday...west winds 15 to 25 kt becoming northwest. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.wednesday...southeast winds 10 to 20 kt becoming south. waves
1 to 3 ft building to 2 to 4 ft.  

$$

fzus63 kmqt 200300
glfls 
expires:202512200900;;891684

open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri dec 19 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 low pressure of around 29.3 inches tracks north of lake superior 
tonight through saturday. this is then followed by a 30.3 inch high 
over the canadian prairies sliding southeast into the ohio river 
valley late this weekend, building to 30.7 inches by monday morning 
as it continues towards the mid-atlantic. lake superior remains 
under the influence of this high until a weakening 29.9 inch low 
moves across the lake monday night through tuesday morning. 
afterwards, a 30.3 inch high pressure moves over lake superior from 
the canadian prairies tuesday night.



lsz265-200900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est fri dec 19 2025

...gale warning in effect from saturday morning through sunday
morning...
...heavy freezing spray warning in effect from saturday afternoon
through sunday morning...

.rest of tonight...south winds 15 to 25 knots increasing to gales
to 35 knots. a chance of snow showers. freezing spray after
midnight. waves 2 to 4 feet building to 6 to 9 feet occasionally
to 11 feet, then subsiding to 5 to 8 feet occasionally to
10 feet. 
.saturday...southwest gales to 35 knots becoming west gales to
45 knots. snow showers likely. freezing spray in the afternoon.
waves subsiding to 3 to 6 feet occasionally to 8 feet, then
building to 9 to 12 feet occasionally to 15 feet. 
.saturday night...northwest gales to 45 knots. freezing spray.
snow showers likely in the evening. a chance of snow showers
after midnight. waves subsiding to 6 to 9 feet occasionally to
11 feet. 
.sunday...northwest winds 20 to 30 knots becoming west 15 to
25 knots in the afternoon. freezing spray in the morning. a
slight chance of snow showers in the morning. waves subsiding to
1 to 3 feet. 
.sunday night...southwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots backing south in the
afternoon. a chance of snow showers. waves subsiding to calm to
2 feet. 
.monday night...south winds 10 to 20 knots becoming west 15 to
25 knots after midnight. a chance of snow showers. waves building
to 1 to 3 feet. 
.tuesday...west gales to 35 knots becoming northwest 15 to
25 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to calm to 2 feet. 
.wednesday...south winds 10 to 20 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 200300
glfls 
expires:202512200900;;891683

open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri dec 19 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 low pressure of around 29.3 inches tracks north of lake superior 
tonight through saturday. this is then followed by a 30.3 inch high 
over the canadian prairies sliding southeast into the ohio river 
valley late this weekend, building to 30.7 inches by monday morning 
as it continues towards the mid-atlantic. lake superior remains 
under the influence of this high until a weakening 29.9 inch low 
moves across the lake monday night through tuesday morning. 
afterwards, a 30.3 inch high pressure moves over lake superior from 
the canadian prairies tuesday night.



lsz264-200900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est fri dec 19 2025

...gale warning in effect from 7 am est saturday through sunday
morning...
...heavy freezing spray warning in effect from saturday afternoon
through sunday morning...

.rest of tonight...south winds 15 to 25 knots increasing to gales
to 35 knots by midnight. a chance of snow showers late in the
evening, then snow showers after midnight. waves 1 to 3 feet
building to 8 to 11 feet occasionally to 14 feet. 
.saturday...southwest gales to 40 knots becoming west gales to
45 knots. a chance of snow showers. freezing spray in the
afternoon. waves subsiding to 7 to 10 feet occasionally to
13 feet, then building to 12 to 17 feet occasionally to 21 feet. 
.saturday night...northwest gales to 40 knots. heavy freezing
spray. a chance of snow showers. waves subsiding to 6 to 9 feet
occasionally to 11 feet. 
.sunday...northwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon. freezing spray in the morning. a
slight chance of snow showers in the morning. waves subsiding to
1 to 3 feet. 
.sunday night...west winds 15 to 25 knots backing southwest after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.monday...southwest winds 10 to 20 knots backing south in the
afternoon. waves subsiding to 1 to 3 feet. 
.monday night...south winds 5 to 15 knots becoming west 15 to
25 knots after midnight. a chance of snow showers. waves building
to 2 to 4 feet. 
.tuesday...northwest winds 20 to 30 knots becoming north 15 to
25 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to calm to 2 feet. 
.wednesday...south winds 10 to 20 knots veering southwest. waves
building to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 200300
glfls 
expires:202512200900;;891686

open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri dec 19 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 low pressure of around 29.3 inches tracks north of lake superior 
tonight through saturday. this is then followed by a 30.3 inch high 
over the canadian prairies sliding southeast into the ohio river 
valley late this weekend, building to 30.7 inches by monday morning 
as it continues towards the mid-atlantic. lake superior remains 
under the influence of this high until a weakening 29.9 inch low 
moves across the lake monday night through tuesday morning. 
afterwards, a 30.3 inch high pressure moves over lake superior from 
the canadian prairies tuesday night.



lsz267-200900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est fri dec 19 2025

...gale warning in effect from 4 am est saturday through sunday
morning...
...heavy freezing spray warning in effect from saturday afternoon
through sunday morning...

.rest of tonight...southeast winds 5 to 15 knots becoming south
20 to 30 knots by midnight, then increasing to gales to 35 knots
late. a chance of snow showers. waves 3 to 5 feet occasionally to
7 feet subsiding to 2 to 4 feet, then building to 7 to 10 feet
occasionally to 13 feet. 
.saturday...south gales to 35 knots becoming west gales to
40 knots by mid afternoon. snow showers. waves subsiding to 6 to
9 feet occasionally to 11 feet, then building to 12 to 17 feet
occasionally to 21 feet. 
.saturday night...west gales to 40 knots becoming northwest gales
to 45 knots by midnight. freezing spray. snow showers. waves
building to 15 to 20 feet occasionally to 25 feet, then subsiding
to 10 to 14 feet occasionally to 18 feet. 
.sunday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. freezing spray in the morning. a
chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday night...southwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a chance of snow showers. waves
subsiding to 2 to 4 feet, then building to 4 to 7 feet
occasionally to 9 feet. 
.monday...southwest winds 20 to 30 knots becoming south 15 to
25 knots in the afternoon. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.monday night...south winds 15 to 25 knots veering southwest
after midnight. snow showers likely in the evening, then a chance
of snow showers after midnight. waves 2 to 4 feet. 
.tuesday...west gales to 35 knots becoming north 15 to 25 knots.
waves building to 8 to 11 feet occasionally to 14 feet, then
subsiding to 1 to 3 feet. 
.wednesday...south winds 10 to 20 knots increasing to 15 to
25 knots. a chance of rain showers. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 200300
glfls 
expires:202512200900;;891681

open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri dec 19 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 low pressure of around 29.3 inches tracks north of lake superior 
tonight through saturday. this is then followed by a 30.3 inch high 
over the canadian prairies sliding southeast into the ohio river 
valley late this weekend, building to 30.7 inches by monday morning 
as it continues towards the mid-atlantic. lake superior remains 
under the influence of this high until a weakening 29.9 inch low 
moves across the lake monday night through tuesday morning. 
afterwards, a 30.3 inch high pressure moves over lake superior from 
the canadian prairies tuesday night.



lsz162-200900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est fri dec 19 2025 /900 pm cst fri dec 19 2025/

...gale warning in effect from 7 am est /6 am cst/ saturday
through late saturday night...
...heavy freezing spray warning in effect from saturday afternoon
through sunday morning...

.rest of tonight...south winds 20 to 30 knots becoming southwest
gales to 35 knots late. a chance of snow showers. waves 2 to
4 feet building to 6 to 9 feet occasionally to 11 feet. 
.saturday...west gales to 40 knots. heavy freezing spray. a
slight chance of snow showers. waves building to 8 to 12 feet
occasionally to 15 feet. 
.saturday night...west gales to 40 knots becoming northwest gales
to 35 knots by midnight, then diminishing to 20 to 30 knots late.
a slight chance of snow showers in the evening. heavy freezing
spray. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.sunday...west winds 10 to 20 knots backing southwest in the
afternoon. waves subsiding to calm to 2 feet. 
.sunday night...southwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.monday...south winds 10 to 20 knots. a chance of snow showers.
waves subsiding to calm to 2 feet. 
.monday night...south winds 10 to 20 knots veering west after
midnight. waves calm to 2 feet. 
.tuesday...northwest winds 10 to 20 knots becoming north 5 to
15 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.wednesday...south winds 5 to 15 knots backing southeast. waves
calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 200300
glfls 
expires:202512200900;;891682

open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri dec 19 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 low pressure of around 29.3 inches tracks north of lake superior 
tonight through saturday. this is then followed by a 30.3 inch high 
over the canadian prairies sliding southeast into the ohio river 
valley late this weekend, building to 30.7 inches by monday morning 
as it continues towards the mid-atlantic. lake superior remains 
under the influence of this high until a weakening 29.9 inch low 
moves across the lake monday night through tuesday morning. 
afterwards, a 30.3 inch high pressure moves over lake superior from 
the canadian prairies tuesday night.



lsz263-200900-
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 fri dec 19 2025

...gale warning in effect from 7 am est saturday through late
saturday night...
...heavy freezing spray warning in effect from saturday afternoon
through sunday morning...

.rest of tonight...south winds 15 to 25 knots increasing to 20 to
30 knots by midnight, then veering southwest late. a chance of
snow showers late in the evening, then snow showers likely after
midnight. waves 2 to 4 feet building to 7 to 10 feet occasionally
to 13 feet. 
.saturday...southwest gales to 40 knots becoming west gales to
45 knots. a chance of snow showers. freezing spray in the
afternoon. waves building to 12 to 17 feet occasionally to
21 feet. 
.saturday night...northwest gales to 40 knots diminishing to
20 to 30 knots late. heavy freezing spray. a chance of snow
showers. waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.sunday...northwest winds 10 to 20 knots backing west in the
afternoon. a slight chance of snow showers in the morning. waves
subsiding to 1 to 3 feet. 
.sunday night...southwest winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.monday...southwest winds 10 to 20 knots backing south in the
afternoon. waves subsiding to calm to 2 feet. 
.monday night...south winds 5 to 15 knots becoming west 10 to
20 knots after midnight. a chance of snow showers. waves building
to 2 to 4 feet. 
.tuesday...northwest winds 15 to 25 knots becoming north 5 to
15 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 
.wednesday...south winds 5 to 15 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 200300
glfls 
expires:202512200900;;891685

open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri dec 19 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 low pressure of around 29.3 inches tracks north of lake superior 
tonight through saturday. this is then followed by a 30.3 inch high 
over the canadian prairies sliding southeast into the ohio river 
valley late this weekend, building to 30.7 inches by monday morning 
as it continues towards the mid-atlantic. lake superior remains 
under the influence of this high until a weakening 29.9 inch low 
moves across the lake monday night through tuesday morning. 
afterwards, a 30.3 inch high pressure moves over lake superior from 
the canadian prairies tuesday night.



lsz266-200900-
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 fri dec 19 2025

...gale warning in effect through sunday morning...
...heavy freezing spray warning in effect from saturday afternoon
through sunday morning...

.rest of tonight...south winds 10 to 20 knots increasing to gales
to 40 knots by midnight. a slight chance of snow showers late in
the evening, then snow showers after midnight. freezing spray
after midnight. waves 3 to 5 feet occasionally to 7 feet building
to 9 to 12 feet occasionally to 15 feet. 
.saturday...southwest gales to 35 knots becoming west gales to
45 knots. snow showers. freezing spray in the afternoon. waves
subsiding to 7 to 10 feet occasionally to 13 feet, then building
to 12 to 17 feet occasionally to 21 feet. 
.saturday night...northwest gales to 45 knots. freezing spray.
snow showers likely in the evening. a chance of snow showers
after midnight. waves subsiding to 10 to 14 feet occasionally to
18 feet. 
.sunday...northwest winds 20 to 30 knots becoming west 15 to
25 knots in the afternoon. freezing spray in the morning. a
chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday night...southwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a slight chance of snow showers.
waves subsiding to 2 to 4 feet, then building to 4 to 7 feet
occasionally to 9 feet. 
.monday...southwest winds 20 to 30 knots becoming south 15 to
25 knots in the afternoon. a chance of snow showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.monday night...south winds 15 to 25 knots veering southwest
after midnight. a chance of snow showers. waves subsiding to 2 to
4 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...northwest gales to 35 knots becoming north 20 to
30 knots. waves building to 8 to 11 feet occasionally to 14 feet,
then subsiding to 1 to 3 feet. 
.wednesday...south winds 10 to 20 knots. a chance of rain
showers. waves subsiding to calm to 2 feet, then building to 2 to
4 feet. 

note, wave height forecasts are for ice free areas.

$$