fzus61 kbuf 070302
glflo 
expires:202512071000;;137885

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est sat dec 6 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 cold front will cross the lake tonight, while its 
associated 29.2 inch low remains stationary near hudson bay. a weak 
30.0 inch surface low and trough will cross the lake on sunday 
afternoon and evening. another 30.4 inch high will move across the 
region monday through monday night, before moving off the east coast 
tuesday. a 29.5 inch low will move across the upper great lakes 
tuesday, then a stronger low averaging 29.3 inches will approach the 
region tuesday night and potentially move northwest of the lake 
wednesday. a 29.9 inch high is expected to move into the great lakes 
region thursday.


loz064-065-071000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est sat dec 6 2025

.rest of tonight...northwest winds 15 to 20 knots becoming
northeast 10 to 15 knots. a chance of snow showers late this
evening. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.sunday...northeast winds 5 to 15 knots becoming east. a chance
of snow showers in the morning, then snow showers in the
afternoon. waves 1 to 3 feet. 
.sunday night...northeast winds 15 to 20 knots becoming north.
snow showers. waves 1 to 3 feet building to 3 to 5 feet. 
.monday...north winds 15 to 20 knots becoming northwest and
diminishing to 5 to 10 knots. a chance of snow showers in the
morning. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday night...west winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.tuesday...south winds to 30 knots becoming southwest 15 to
25 knots. snow showers likely during the day, then rain and snow
tuesday night. waves 3 to 6 feet building to 5 to 9 feet. waves
occasionally around 11 feet. 
.wednesday...south winds 20 to 25 knots becoming west. rain and
snow during the day, then rain and snow showers wednesday night.
waves 3 to 6 feet building to 5 to 8 feet. waves occasionally
around 10 feet. 
.thursday...northwest winds 15 to 25 knots. snow showers likely.
waves 5 to 8 feet subsiding to 3 to 6 feet. waves occasionally
around 10 feet. 

$$

fzus61 kbuf 070302
glflo 
expires:202512071000;;137884

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est sat dec 6 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 cold front will cross the lake tonight, while its 
associated 29.2 inch low remains stationary near hudson bay. a weak 
30.0 inch surface low and trough will cross the lake on sunday 
afternoon and evening. another 30.4 inch high will move across the 
region monday through monday night, before moving off the east coast 
tuesday. a 29.5 inch low will move across the upper great lakes 
tuesday, then a stronger low averaging 29.3 inches will approach the 
region tuesday night and potentially move northwest of the lake 
wednesday. a 29.9 inch high is expected to move into the great lakes 
region thursday.


loz063-071000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est sat dec 6 2025

.rest of tonight...northwest winds 15 to 20 knots becoming north
10 to 15 knots. a chance of snow showers. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.sunday...east winds 5 to 15 knots. a chance of snow showers in
the morning, then snow showers in the afternoon. waves 1 to
3 feet. 
.sunday night...north winds 15 to 20 knots. snow showers in the
evening, then a chance of snow showers overnight. waves 1 to
3 feet building to 3 to 5 feet. 
.monday...north winds 15 to 20 knots becoming northwest and
diminishing to 5 to 10 knots. a chance of snow showers in the
morning. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday night...west winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest. snow
showers likely during the day, then rain with a chance of snow
tuesday night. waves 3 to 6 feet. 
.wednesday...south winds 15 to 25 knots becoming west. rain with
a chance of snow during the day, then rain and snow showers
likely wednesday night. waves 3 to 6 feet building to 5 to
8 feet. waves occasionally around 10 feet. 
.thursday...west winds 15 to 25 knots. a chance of snow showers.
waves 4 to 7 feet subsiding to 3 to 6 feet. waves occasionally
around 9 feet. 

$$

fzus61 kbuf 070302
glflo 
expires:202512071000;;137883

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est sat dec 6 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 cold front will cross the lake tonight, while its 
associated 29.2 inch low remains stationary near hudson bay. a weak 
30.0 inch surface low and trough will cross the lake on sunday 
afternoon and evening. another 30.4 inch high will move across the 
region monday through monday night, before moving off the east coast 
tuesday. a 29.5 inch low will move across the upper great lakes 
tuesday, then a stronger low averaging 29.3 inches will approach the 
region tuesday night and potentially move northwest of the lake 
wednesday. a 29.9 inch high is expected to move into the great lakes 
region thursday.


loz062-071000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est sat dec 6 2025

.rest of tonight...northwest winds 15 to 20 knots becoming
northeast 5 to 15 knots. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.sunday...east winds 5 to 15 knots. snow showers. waves 1 to
2 feet. 
.sunday night...north winds 15 to 20 knots. snow showers in the
evening, then a chance of snow showers overnight. waves 2 to
4 feet. 
.monday...north winds 15 to 20 knots becoming northwest 5 to
15 knots. waves 2 to 4 feet subsiding to 2 feet or less. 
.monday night...southwest winds 5 to 15 knots becoming south
15 to 20 knots. waves 1 to 3 feet. 
.tuesday...south winds to 30 knots becoming southwest and
diminishing to 15 to 20 knots. snow showers likely during the
day, then rain with a chance of snow tuesday night. waves 3 to
6 feet building to 5 to 8 feet, then subsiding to 3 to 6 feet.
waves occasionally around 10 feet. 
.wednesday...south winds 15 to 25 knots becoming northwest. rain
with a chance of snow during the day, then snow and rain showers
likely wednesday night. waves 3 to 6 feet building to 4 to
7 feet. waves occasionally around 9 feet. 
.thursday...northwest winds 15 to 20 knots. a chance of snow
showers. waves 3 to 6 feet. 

$$

fzus61 kcle 070302
glfle 
expires:202512070930;;137879

open lake forecast for lake erie
national weather service cleveland oh
1002 pm est sat dec 6 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 front remains stalled over lake erie before advancing southeastward
and away from the lake late sunday morning through afternoon as a
weak frontal low of 30.00 inches moves generally northeastward 
through the eastern great lakes and vicinity. behind the front, a 
ridge averaging 30.40 inches builds from the north-central united
states through monday and then begins to exit toward new england 
monday night through tuesday. accordingly, a warm front will sweep
northeastward across lake erie monday night. on wednesday, a cold
front should sweep eastward across lake erie as a low of 29.10 
inches moves northeastward from the southwestern great lakes 
toward northern new england and vicinity. behind the cold front, 
a trough averaging 29.90 inches should linger over the lake erie 
region through this thursday.


lez061-166>169-070930-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-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-
1002 pm est sat dec 6 2025

.overnight...west winds 5 to 15 knots becoming southwest. a
chance of snow showers, then a chance of snow late. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.sunday...southwest winds 5 to 15 knots becoming west 15 to
20 knots. a chance of snow early, then snow likely. a chance of
snow with a slight chance of rain late. waves 1 to 3 feet
building to 2 to 4 feet. 
.sunday night...northwest winds 15 to 20 knots becoming north. a
chance of snow in the evening. waves 3 to 6 feet. 
.monday...northeast winds 15 to 20 knots becoming east 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday night...southeast winds 5 to 15 knots becoming south and
increasing to 15 to 25 knots. waves 2 feet or less building to
3 to 6 feet. 
.tuesday...southwest gales to 35 knots. snow and rain likely
during the day, then rain tuesday night. waves 7 to 10 feet
building to 9 to 12 feet, then subsiding to 7 to 10 feet. waves
occasionally around 15 feet. 
.wednesday...southwest gales to 35 knots becoming west and
diminishing to 30 knots. rain during the day, then snow and rain
likely wednesday night. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.thursday...west winds 15 to 25 knots. a chance of snow. waves
5 to 8 feet. waves occasionally around 10 feet. 

$$

fzus61 kcle 070302
glfle 
expires:202512070930;;137877

open lake forecast for lake erie
national weather service cleveland oh
1002 pm est sat dec 6 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 front remains stalled over lake erie before advancing southeastward
and away from the lake late sunday morning through afternoon as a
weak frontal low of 30.00 inches moves generally northeastward 
through the eastern great lakes and vicinity. behind the front, a 
ridge averaging 30.40 inches builds from the north-central united
states through monday and then begins to exit toward new england 
monday night through tuesday. accordingly, a warm front will sweep
northeastward across lake erie monday night. on wednesday, a cold
front should sweep eastward across lake erie as a low of 29.10 
inches moves northeastward from the southwestern great lakes 
toward northern new england and vicinity. behind the cold front, 
a trough averaging 29.90 inches should linger over the lake erie 
region through this thursday.


lez162-163-070930-
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-
1002 pm est sat dec 6 2025

.overnight...west winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.sunday...southwest winds 5 to 15 knots becoming north. a chance
of snow early, then snow likely late in the morning. a chance of
snow in the afternoon. waves 2 feet or less. 
.sunday night...north winds 15 to 20 knots. waves 1 to 3 feet. 
.monday...northeast winds 5 to 15 knots becoming east. waves 1 to
3 feet. 
.monday night...southeast winds 5 to 15 knots becoming southwest
and increasing to 15 to 25 knots. waves 1 to 3 feet building to
2 to 4 feet. 
.tuesday...southwest winds to 30 knots. a chance of snow during
the day, then rain tuesday night. waves 3 to 6 feet. 
.wednesday...southwest winds to 30 knots becoming west. rain
likely with a chance of snow during the day, then a chance of
snow wednesday night. waves 3 to 6 feet. 
.thursday...west winds 15 to 20 knots. a chance of snow. waves
2 to 4 feet subsiding to 1 to 3 feet. 

$$

fzus61 kcle 070302
glfle 
expires:202512070930;;137878

open lake forecast for lake erie
national weather service cleveland oh
1002 pm est sat dec 6 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 front remains stalled over lake erie before advancing southeastward
and away from the lake late sunday morning through afternoon as a
weak frontal low of 30.00 inches moves generally northeastward 
through the eastern great lakes and vicinity. behind the front, a 
ridge averaging 30.40 inches builds from the north-central united
states through monday and then begins to exit toward new england 
monday night through tuesday. accordingly, a warm front will sweep
northeastward across lake erie monday night. on wednesday, a cold
front should sweep eastward across lake erie as a low of 29.10 
inches moves northeastward from the southwestern great lakes 
toward northern new england and vicinity. behind the cold front, 
a trough averaging 29.90 inches should linger over the lake erie 
region through this thursday.


lez164-165-070930-
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-
1002 pm est sat dec 6 2025

.overnight...west winds 5 to 10 knots becoming southwest.
waves 2 feet or less. 
.sunday...southwest winds 5 to 15 knots becoming northwest 15 to
20 knots. a chance of snow early, then snow likely. a chance of
snow with a slight chance of rain late. waves 1 to 3 feet. 
.sunday night...north winds 15 to 20 knots. a chance of snow in
the evening. waves 3 to 5 feet. 
.monday...northeast winds 15 to 20 knots becoming east 5 to
15 knots. waves 3 to 5 feet subsiding to 2 to 3 feet. 
.monday night...southeast winds 5 to 15 knots becoming southwest
and increasing to 15 to 25 knots. waves 1 to 3 feet building to
3 to 5 feet. 
.tuesday...southwest gales to 35 knots diminishing to 30 knots. a
chance of snow and rain during the day, then rain tuesday night.
waves 6 to 10 feet. waves occasionally around 13 feet. 
.wednesday...southwest gales to 35 knots becoming west and
diminishing to 30 knots. rain during the day, then snow likely
wednesday night. waves 6 to 10 feet subsiding to 5 to 8 feet.
waves occasionally around 13 feet. 
.thursday...west winds 15 to 25 knots. a chance of snow. waves
4 to 7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet. 

$$

fzus63 kdtx 070249
glfsc 
expires:202512071100;;137397

lake st clair forecast
national weather service detroit/pontiac mi
949 pm est sat dec 6 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, 30.30 inches, slides through the
central great lakes tonight. low pressure, 29.90 inches, then
tracks across the southern great lakes sunday morning bringing
light snow to the area. brief strong northwest winds follow late
sunday for lake huron, with elevated wind potential carrying into
the early part of next week.


lcz460-071100-
lake st clair-
949 pm est sat dec 6 2025

.rest of tonight...west winds 5 to 10 knots this evening becoming
light and variable. cloudy. waves 2 feet or less.
.sunday...west winds 5 to 10 knots becoming northwest 10 to 15 knots
late in the afternoon. light snow in the morning...then light snow
likely early in the afternoon. a chance of light snow late in the
afternoon. waves 2 feet or less.
.sunday night...north winds 15 to 20 knots. mostly clear. waves 1 to
3 feet.
.monday...north winds 10 to 15 knots becoming east 5 to 10 knots in
the late morning and afternoon. partly sunny. waves 2 feet or less.
.monday night...southeast winds 5 to 10 knots becoming south 15 to
20 knots in the late evening and early morning...then becoming
southwest 20 to 25 knots after midnight. partly cloudy until early
morning becoming mostly cloudy. waves 2 feet or less building to 2
to 4 feet after midnight.
.tuesday...southwest winds to 30 knots diminishing to 20 to 25 knots
with gusts to 30 knots in the afternoon and evening. cloudy. a
chance of light snow in the afternoon and evening. a chance of light
rain in the evening. waves 2 to 4 feet. a small craft advisory may
be needed.
.wednesday...west at 35 knot gales. light rain and a chance of light
snow. waves 3 to 5 feet. waves occasionally around 7 feet.  a gale
warning may be needed.
.thursday...west winds 20 to 25 knots. mostly cloudy. a chance of
light snow. waves 1 to 3 feet.

$$

fzus63 kdtx 070249
glflh 
expires:202512071100;;137356

open lake forecast for lake huron
national weather service detroit/pontiac mi
949 pm est sat dec 6 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, 30.30 inches, slides through the
central great lakes tonight. low pressure, 29.90 inches, then
tracks across the southern great lakes sunday morning bringing
light snow to the area. brief strong northwest winds follow late
sunday for lake huron, with elevated wind potential carrying into
the early part of next week.


lhz361-362-071100-
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-
949 pm est sat dec 6 2025

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


$$

fzus63 kdtx 070249
glflh 
expires:202512071100;;137357

open lake forecast for lake huron
national weather service detroit/pontiac mi
949 pm est sat dec 6 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, 30.30 inches, slides through the
central great lakes tonight. low pressure, 29.90 inches, then
tracks across the southern great lakes sunday morning bringing
light snow to the area. brief strong northwest winds follow late
sunday for lake huron, with elevated wind potential carrying into
the early part of next week.


lhz363-462>464-071100-
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-
949 pm est sat dec 6 2025

.rest of tonight...west winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. snow likely after midnight. waves 2 to
4 feet subsiding to 1 to 3 feet early in the morning. 
.sunday...west winds 5 to 10 knots increasing to 10 to 15 knots
late in the morning...then becoming northwest 15 to 20 knots
early in the afternoon increasing to 20 to 25 knots late in the
afternoon. snow in the morning...then a chance of snow in the
afternoon. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 12 feet. 
.sunday night...northwest winds 20 to 25 knots with gusts to
around 30 knots becoming north 15 to 20 knots after midnight.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.monday...north winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then veering to the
southeast early in the afternoon. waves 4 to 6 feet subsiding to
1 to 3 feet early in the afternoon. waves occasionally around
8 feet. 
.monday night...southwest winds 15 to 20 knots becoming south to
30 knots with gusts to 35 knot gales. a chance of snow after
midnight. waves 4 to 6 feet building to 8 to 12 feet in the late
evening and overnight. waves occasionally around 15 feet. 
.tuesday...south winds to 30 knots with gusts to 35 knot gales
becoming southwest 15 to 20 knots late in the afternoon. a chance
of snow. a chance of rain late in the afternoon...then rain and
snow late in the evening. waves 8 to 12 feet subsiding to 6 to
9 feet late in the evening. waves occasionally around 15 feet. 
.wednesday...south winds 20 to 25 knots veering to the southwest
with gusts to around 30 knots in the late morning and early
afternoon...then veering to the north with gusts to around
30 knots until early morning. rain with snow likely early in the
morning...then a chance of snow and rain until early morning.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.thursday...west winds 15 to 20 knots. a chance of snow. waves
5 to 7 feet. waves occasionally around 10 feet. 


$$

fzus63 kmkx 070304
glflm 
expires:202512071030;;137984

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
904 pm cst sat dec 6 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...

winds will increase and become north to northwest overnight into 
sunday, as low pressure around 29.9 inches crosses central 
illinois and indiana. high pressure around 30.5 inches will also 
build into the upper midwest. 

winds will shift to the south monday afternoon, as low pressure 
around 30.0 inches passes north of lake superior. another low
around 29.7 inches will track from minnesota to sault ste. marie 
monday night through tuesday morning. a period of southerly gales 
up to 35 knots is looking more likely during this time, with 
gusts up to 40 knots possible over far northern lake michigan.

the next low around 29.1 inches will track across central 
wisconsin tuesday night and reach southern ontario by midday 
wednesday. gales are possible for the south half of the lake 
during this time.


lmz080-669-671-673-675-777-779-870-872-874-876-878-071030-
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-
904 pm cst sat dec 6 2025

sheboygan wi to pentwater mi south...

.rest of tonight...northwest winds 5 to 10 kt veering to
northeast late this evening, then becoming east after midnight
becoming northeast 10 to 20 kt late. chance of snow through early
evening, then snow overnight. waves 1 to 3 ft. 
.sunday...northeast winds 10 to 20 kt becoming north 15 to 25 kt.
chance of snow in the morning, then slight chance of snow in the
afternoon. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.sunday night...north winds 15 to 25 kt becoming northeast 10 to
20 kt, then becoming east 10 to 15 kt late. chance of snow in the
evening. waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.monday...southeast winds 10 to 20 kt becoming south 15 to 25 kt.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. 
.monday night...south gales to 35 kt becoming southwest. chance
of snow overnight. waves 8 to 12 ft occasionally to 16 ft
building to 12 to 16 ft occasionally to 21 ft. 
.tuesday...southwest gales to 35 kt diminishing to 30 kt. chance
of snow showers in the morning, then chance of rain showers in
the afternoon. waves 10 to 14 ft occasionally to 18 ft subsiding
to 8 to 12 ft occasionally to 16 ft. 
.tuesday night...south winds to 30 kt becoming southwest gales to
35 kt. rain. waves 7 to 10 ft occasionally to 13 ft building to
10 to 14 ft occasionally to 18 ft. 
.wednesday...west gales to 40 kt becoming northwest. rain showers
likely with a chance of snow showers. waves 12 to 16 ft
occasionally to 21 ft. 
.thursday...northwest winds 15 to 25 kt. chance of snow. waves
5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 070304
glflm 
expires:202512071030;;137983

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
904 pm cst sat dec 6 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...

winds will increase and become north to northwest overnight into 
sunday, as low pressure around 29.9 inches crosses central 
illinois and indiana. high pressure around 30.5 inches will also 
build into the upper midwest. 

winds will shift to the south monday afternoon, as low pressure 
around 30.0 inches passes north of lake superior. another low
around 29.7 inches will track from minnesota to sault ste. marie 
monday night through tuesday morning. a period of southerly gales 
up to 35 knots is looking more likely during this time, with 
gusts up to 40 knots possible over far northern lake michigan.

the next low around 29.1 inches will track across central 
wisconsin tuesday night and reach southern ontario by midday 
wednesday. gales are possible for the south half of the lake 
during this time.


lmz261-362-364-366-563-565-567-868-071030-
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-
904 pm cst sat dec 6 2025

sheboygan wi to pentwater mi north...

.rest of tonight...northwest winds 10 to 15 kt. slight chance of
snow through early evening, then chance of snow overnight. waves
1 to 3 ft. 
.sunday...northwest winds 10 to 20 kt becoming north 15 to 25 kt.
slight chance of snow. waves 2 to 4 ft building to 4 to 7 ft
occasionally to 9 ft. 
.sunday night...north winds 15 to 25 kt becoming northwest 5 to
10 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to
4 ft. 
.monday...south winds 10 to 20 kt increasing to 30 kt in the
afternoon. chance of snow in the afternoon. waves 1 to 3 ft
building to 4 to 7 ft occasionally to 9 ft. 
.monday night...southwest gales to 35 kt. chance of snow in the
evening, then snow overnight. waves 10 to 14 ft occasionally to
18 ft. 
.tuesday...west winds to 30 kt diminishing to 15 to 25 kt. snow
showers likely in the morning, then chance of rain showers in the
afternoon. waves 10 to 14 ft occasionally to 18 ft subsiding to
7 to 10 ft occasionally to 13 ft. 
.tuesday night...south winds 15 to 25 kt becoming east to 30 kt.
snow and rain. waves 5 to 8 ft occasionally to 10 ft building to
7 to 10 ft occasionally to 13 ft. 
.wednesday...north winds to 30 kt. chance of snow showers. waves
8 to 11 ft occasionally to 14 ft. 
.thursday...north winds 10 to 20 kt. chance of snow. waves 3 to
5 ft.  

$$

fzus63 kmqt 070300
glfls 
expires:202512070900;;137724

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat dec 6 2025

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

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 30.3 inch high over saskatchewan continues to build into the 
northern plains tonight, eventually strengthening to 30.4 inches 
over minnesota by tomorrow. the high continues into the great lakes 
basin monday. by monday afternoon, a 29.8 inch low develops over 
north dakota, eventually moving over lake superior tuesday morning 
as it deepens to 29.6 inches. a second, stronger clipper low forms 
tuesday over the montana/canada border, absorbing the previous low 
tuesday night at 29.2 inches as it approaches lake michigan. the low 
lifts through southern ontario on wednesday while weak 30.0 inch 
ridging traverses the plains. the low quickly ejects past the st 
lawrence seaway thursday as high pressure over the canadian rockies 
builds to 30.9 inches.



lsz162-070900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est sat dec 6 2025 /900 pm cst sat dec 6 2025/

.rest of tonight...northwest winds 10 to 20 knots increasing to
15 to 25 knots by midnight, then diminishing to 10 to 20 knots
late. isolated snow showers. waves 1 to 3 feet building to 2 to
4 feet. 
.sunday...north winds 10 to 20 knots backing northwest. isolated
snow showers in the morning. waves subsiding to calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots backing southwest
late. a slight chance of snow showers after midnight. waves calm
to 2 feet. 
.monday...southwest winds 15 to 25 knots. a chance of snow
showers. waves building to 3 to 6 feet occasionally to 8 feet. 
.monday night...southwest winds 15 to 25 knots veering west after
midnight. snow showers. waves subsiding to 2 to 4 feet. 
.tuesday...northwest winds 5 to 15 knots veering east in the
afternoon. a chance of snow showers. waves subsiding to calm to
2 feet. 
.tuesday night...east winds 15 to 25 knots becoming northeast
20 to 30 knots after midnight. snow showers likely in the
evening, then a chance of snow showers after midnight. waves
building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...north winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to calm to 2 feet. 
.thursday...north winds 10 to 20 knots becoming northwest 15 to
25 knots. waves building to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070300
glfls 
expires:202512070900;;137725

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat dec 6 2025

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

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 30.3 inch high over saskatchewan continues to build into the 
northern plains tonight, eventually strengthening to 30.4 inches 
over minnesota by tomorrow. the high continues into the great lakes 
basin monday. by monday afternoon, a 29.8 inch low develops over 
north dakota, eventually moving over lake superior tuesday morning 
as it deepens to 29.6 inches. a second, stronger clipper low forms 
tuesday over the montana/canada border, absorbing the previous low 
tuesday night at 29.2 inches as it approaches lake michigan. the low 
lifts through southern ontario on wednesday while weak 30.0 inch 
ridging traverses the plains. the low quickly ejects past the st 
lawrence seaway thursday as high pressure over the canadian rockies 
builds to 30.9 inches.



lsz263-070900-
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 sat dec 6 2025

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070300
glfls 
expires:202512070900;;137726

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat dec 6 2025

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

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 30.3 inch high over saskatchewan continues to build into the 
northern plains tonight, eventually strengthening to 30.4 inches 
over minnesota by tomorrow. the high continues into the great lakes 
basin monday. by monday afternoon, a 29.8 inch low develops over 
north dakota, eventually moving over lake superior tuesday morning 
as it deepens to 29.6 inches. a second, stronger clipper low forms 
tuesday over the montana/canada border, absorbing the previous low 
tuesday night at 29.2 inches as it approaches lake michigan. the low 
lifts through southern ontario on wednesday while weak 30.0 inch 
ridging traverses the plains. the low quickly ejects past the st 
lawrence seaway thursday as high pressure over the canadian rockies 
builds to 30.9 inches.



lsz264-070900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est sat dec 6 2025

.rest of tonight...northwest winds 10 to 20 knots increasing to
15 to 25 knots late. scattered snow showers. waves 1 to 3 feet
building to 3 to 5 feet occasionally to 7 feet. 
.sunday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. freezing spray in the morning.
scattered snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots by midnight, then backing west late. a chance of
snow showers. waves subsiding to calm to 2 feet. 
.monday...southwest winds 15 to 25 knots. a chance of snow
showers in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday night...southwest winds 15 to 25 knots. snow showers.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...northwest winds 10 to 20 knots becoming north 5 to
15 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northeast winds 10 to 20 knots increasing to
20 to 30 knots after midnight. a chance of snow showers. freezing
spray after midnight. waves building to 5 to 8 feet occasionally
to 10 feet. 
.wednesday...north winds 20 to 30 knots diminishing to 15 to
25 knots. freezing spray. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 2 to 4 feet. 
.thursday...north winds 10 to 20 knots increasing to 15 to
25 knots. freezing spray. waves building to 3 to 6 feet
occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070300
glfls 
expires:202512070900;;137727

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat dec 6 2025

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

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 30.3 inch high over saskatchewan continues to build into the 
northern plains tonight, eventually strengthening to 30.4 inches 
over minnesota by tomorrow. the high continues into the great lakes 
basin monday. by monday afternoon, a 29.8 inch low develops over 
north dakota, eventually moving over lake superior tuesday morning 
as it deepens to 29.6 inches. a second, stronger clipper low forms 
tuesday over the montana/canada border, absorbing the previous low 
tuesday night at 29.2 inches as it approaches lake michigan. the low 
lifts through southern ontario on wednesday while weak 30.0 inch 
ridging traverses the plains. the low quickly ejects past the st 
lawrence seaway thursday as high pressure over the canadian rockies 
builds to 30.9 inches.



lsz265-070900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est sat dec 6 2025

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070300
glfls 
expires:202512070900;;137728

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat dec 6 2025

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

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 30.3 inch high over saskatchewan continues to build into the 
northern plains tonight, eventually strengthening to 30.4 inches 
over minnesota by tomorrow. the high continues into the great lakes 
basin monday. by monday afternoon, a 29.8 inch low develops over 
north dakota, eventually moving over lake superior tuesday morning 
as it deepens to 29.6 inches. a second, stronger clipper low forms 
tuesday over the montana/canada border, absorbing the previous low 
tuesday night at 29.2 inches as it approaches lake michigan. the low 
lifts through southern ontario on wednesday while weak 30.0 inch 
ridging traverses the plains. the low quickly ejects past the st 
lawrence seaway thursday as high pressure over the canadian rockies 
builds to 30.9 inches.



lsz266-070900-
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 sat dec 6 2025

.rest of tonight...northwest winds 15 to 25 knots increasing to
20 to 30 knots late. scattered snow showers. waves 3 to 5 feet
occasionally to 7 feet subsiding to 2 to 4 feet, then building to
3 to 6 feet occasionally to 8 feet. 
.sunday...northwest winds 20 to 30 knots. freezing spray.
scattered snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots by midnight, then backing west late. a chance of
snow showers. waves subsiding to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots in the afternoon. a chance of snow showers in the
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.monday night...southwest gales to 35 knots diminishing to 20 to
30 knots after midnight. snow showers. waves building to 4 to
8 feet occasionally to 10 feet. 
.tuesday...west winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon. a chance of snow showers. waves
subsiding to 1 to 3 feet. 
.tuesday night...east winds 10 to 20 knots becoming northeast
20 to 30 knots after midnight. a chance of snow showers. waves
building to 4 to 7 feet occasionally to 9 feet. 
.wednesday...north winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday...north winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow showers, then snow showers likely.
waves building to 4 to 7 feet occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070300
glfls 
expires:202512070900;;137729

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat dec 6 2025

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

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 30.3 inch high over saskatchewan continues to build into the 
northern plains tonight, eventually strengthening to 30.4 inches 
over minnesota by tomorrow. the high continues into the great lakes 
basin monday. by monday afternoon, a 29.8 inch low develops over 
north dakota, eventually moving over lake superior tuesday morning 
as it deepens to 29.6 inches. a second, stronger clipper low forms 
tuesday over the montana/canada border, absorbing the previous low 
tuesday night at 29.2 inches as it approaches lake michigan. the low 
lifts through southern ontario on wednesday while weak 30.0 inch 
ridging traverses the plains. the low quickly ejects past the st 
lawrence seaway thursday as high pressure over the canadian rockies 
builds to 30.9 inches.



lsz267-070900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est sat dec 6 2025

.rest of tonight...northwest winds 10 to 20 knots increasing to
15 to 25 knots by midnight. snow showers. waves 3 to 5 feet
occasionally to 7 feet subsiding to 2 to 4 feet, then building to
3 to 6 feet occasionally to 8 feet. 
.sunday...north winds 15 to 25 knots becoming northwest 20 to
30 knots by late morning, then becoming north to 30 knots with a
few gale force gusts to 35 knots possible by mid afternoon.
freezing spray. numerous snow showers in the morning. scattered
snow showers in the afternoon. waves building to 5 to 8 feet
occasionally to 10 feet. 
.sunday night...north winds 15 to 25 knots becoming northwest
10 to 20 knots by midnight. a chance of snow showers. waves
subsiding to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots in the afternoon. a chance of snow showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.monday night...southwest winds 20 to 30 knots. snow showers.
waves building to 4 to 8 feet occasionally to 10 feet. 
.tuesday...southwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon. snow showers in the morning, then a
chance of snow showers in the afternoon. waves subsiding to 2 to
4 feet. 
.tuesday night...east winds 15 to 25 knots. snow showers likely.
waves subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...northeast winds 20 to 30 knots becoming north 15 to
25 knots. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.thursday...north winds 15 to 25 knots. a chance of snow showers,
then snow showers likely. waves building to 3 to 5 feet
occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$