(1/17)
Latest Great Lakes Marine Forecast by KBUF
Issued 1/21/2026 10:02 PM America/New_York.
Valid through 1/22/2026 5:00 AM America/New_York.
fzus61 kbuf 220302
glflo
expires:202601221000;;301566
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed jan 21 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a 29.8 inch low will move from the upper great lakes to
central quebec through thursday, then to the canadian maritimes
friday. this low will push a series of cold fronts across the lake,
with the first passing this evening, a second arctic cold front
across the lake thursday morning, followed by a reinforcing tertiary
front late thursday night into friday morning. at the same time, a
large 31.1 inch high will build from northwestern canada to the
northern plains states, with the high then weakening to 30.7 inches
as it slides eastward across the great lakes and new england over
the weekend and into monday.
loz063>065-221000-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm est wed jan 21 2026
...gale warning in effect through friday evening...
.rest of tonight...southwest winds to 30 knots. snow showers
likely, then a chance of snow showers late. waves 7 to 11 feet
building to 10 to 13 feet. waves occasionally around 16 feet.
.thursday...southwest gales to 35 knots becoming west to
40 knots. a chance of lake effect snow showers early, then lake
effect snow showers likely from late morning on. waves 10 to
15 feet building to 14 to 19 feet. waves occasionally around
24 feet.
.thursday night...west gales to 40 knots diminishing to 35 knots.
lake effect snow. waves 14 to 19 feet subsiding to 13 to 17 feet.
waves occasionally around 24 feet.
.friday...west gales to 35 knots. lake effect snow showers. waves
12 to 17 feet. waves occasionally around 22 feet.
.friday night...northwest gales to 35 knots diminishing to 15 to
25 knots overnight. lake effect snow showers. waves 11 to 15 feet
subsiding to 4 to 7 feet. waves occasionally around 19 feet.
.saturday...north winds 15 to 20 knots becoming east 5 to
15 knots. a chance of snow showers during the day, then a chance
of snow saturday night. waves 3 to 5 feet subsiding to 1 to
3 feet.
.sunday...east winds 15 to 20 knots. snow likely. waves 2 to
4 feet building to 3 to 6 feet.
.monday...north winds 15 to 25 knots becoming west to 30 knots. a
chance of snow showers. waves 3 to 5 feet building to 6 to
9 feet. waves occasionally around 11 feet.
$$
(2/17)
Latest Great Lakes Marine Forecast by KBUF
Issued 1/21/2026 10:02 PM America/New_York.
Valid through 1/22/2026 5:00 AM America/New_York.
fzus61 kbuf 220302
glflo
expires:202601221000;;301565
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed jan 21 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a 29.8 inch low will move from the upper great lakes to
central quebec through thursday, then to the canadian maritimes
friday. this low will push a series of cold fronts across the lake,
with the first passing this evening, a second arctic cold front
across the lake thursday morning, followed by a reinforcing tertiary
front late thursday night into friday morning. at the same time, a
large 31.1 inch high will build from northwestern canada to the
northern plains states, with the high then weakening to 30.7 inches
as it slides eastward across the great lakes and new england over
the weekend and into monday.
loz062-221000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est wed jan 21 2026
...gale warning in effect through friday evening...
.rest of tonight...southwest winds to 30 knots. snow showers
likely late this evening, then a chance of snow showers after
midnight. waves 7 to 11 feet. waves occasionally around 14 feet.
.thursday...west winds to 30 knots increasing to 40 knot gales. a
chance of snow showers. waves 8 to 11 feet building to 12 to
16 feet. waves occasionally around 20 feet.
.thursday night...west gales to 35 knots. a chance of snow
showers in the evening, then lake effect snow showers likely
overnight. waves 10 to 15 feet. waves occasionally around
19 feet.
.friday...west gales to 35 knots becoming northwest and
diminishing to 30 knots in the afternoon. lake effect snow
showers likely. waves 10 to 14 feet. waves occasionally around
18 feet.
.friday night...northwest winds to 30 knots diminishing to 15 to
20 knots. snow showers likely in the evening, then a chance of
snow showers overnight. waves 8 to 11 feet subsiding to 2 to
4 feet. waves occasionally around 14 feet.
.saturday...north winds 5 to 15 knots becoming east. a chance of
snow showers during the day, then a chance of snow saturday
night. waves 1 to 3 feet.
.sunday...east winds 15 to 25 knots becoming northeast. snow
likely. waves 3 to 6 feet.
.monday...north winds 15 to 25 knots becoming west. a chance of
snow showers during the day. waves 3 to 6 feet building to 5 to
8 feet. waves occasionally around 10 feet.
$$
(3/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 1/21/2026 9:25 PM America/New_York.
Valid through 1/22/2026 4:15 AM America/New_York.
fzus61 kcle 220225
glfle
expires:202601220915;;300430
open lake forecast for lake erie
national weather service cleveland oh
925 pm est wed jan 21 2026
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 reinforcing cold front will cross lake erie late tonight with a
trough averaging 30.10 inches lingering in its wake into thursday.
an arctic cold front will move across the area late thursday
night into early friday morning. strong high pressure 30.70
inches will build into the great lakes region friday and persist
through early next week.
lez061-169-220915-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
925 pm est wed jan 21 2026
.rest of tonight...southwest winds to 30 knots. snow showers late
this evening, then a chance of snow showers after midnight. snow
showers likely late. waves in ice free areas 5 to 9 feet building
to 7 to 10 feet. waves in ice free areas occasionally around
13 feet.
.thursday...west winds to 30 knots. snow showers likely early,
then a chance of snow showers. a slight chance of snow showers
late. waves 7 to 11 feet. waves occasionally around 14 feet.
.thursday night...west winds to 30 knots. heavy freezing spray
overnight. a chance of snow showers overnight. waves 6 to
10 feet. waves occasionally around 13 feet.
.friday...west winds to 30 knots. heavy freezing spray. waves
5 to 9 feet. waves occasionally around 11 feet.
.friday night...west winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. heavy freezing spray in the
evening. waves 3 to 6 feet subsiding to 1 to 3 feet.
.saturday...northwest winds 5 to 15 knots becoming east. a chance
of snow saturday night. waves 2 feet or less.
.sunday...east winds 10 to 15 knots becoming north. snow likely
during the day, then a chance of snow sunday night. waves 1 to
3 feet.
.monday...northwest winds 15 to 20 knots becoming west. waves
2 to 4 feet building to 3 to 6 feet.
wave heights are for ice free areas.
$$
(4/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 1/21/2026 9:25 PM America/New_York.
Valid through 1/22/2026 4:15 AM America/New_York.
fzus61 kcle 220225
glfle
expires:202601220915;;300428
open lake forecast for lake erie
national weather service cleveland oh
925 pm est wed jan 21 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
a reinforcing cold front will cross lake erie late tonight with a
trough averaging 30.10 inches lingering in its wake into thursday.
an arctic cold front will move across the area late thursday
night into early friday morning. strong high pressure 30.70
inches will build into the great lakes region friday and persist
through early next week.
lez162>164-220915-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
925 pm est wed jan 21 2026
.rest of tonight...southwest winds 20 to 25 knots. the lake is
mostly ice covered.
.thursday...west winds 15 to 25 knots.
.thursday night...west winds 15 to 20 knots.
.friday...west winds 15 to 20 knots becoming northwest.
.friday night...northwest winds 5 to 15 knots.
.saturday...north winds 5 to 15 knots becoming east 15 to
20 knots. snow likely saturday night.
.sunday...northeast winds 15 to 20 knots becoming northwest 10 to
15 knots. snow likely during the day.
.monday...northwest winds 15 to 20 knots becoming west.
waves omitted due to the lake being mostly ice covered.
$$
(5/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 1/21/2026 9:25 PM America/New_York.
Valid through 1/22/2026 4:15 AM America/New_York.
fzus61 kcle 220225
glfle
expires:202601220915;;300429
open lake forecast for lake erie
national weather service cleveland oh
925 pm est wed jan 21 2026
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 reinforcing cold front will cross lake erie late tonight with a
trough averaging 30.10 inches lingering in its wake into thursday.
an arctic cold front will move across the area late thursday
night into early friday morning. strong high pressure 30.70
inches will build into the great lakes region friday and persist
through early next week.
lez165>168-220915-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
925 pm est wed jan 21 2026
.rest of tonight...southwest winds to 30 knots. snow showers late
this evening, then a slight chance of snow showers after
midnight. a chance of snow showers late. the lake is mostly ice
covered.
.thursday...west winds to 30 knots. a slight chance of snow
showers in the morning.
.thursday night...west winds 15 to 25 knots.
.friday...west winds 15 to 25 knots. heavy freezing spray in the
morning.
.friday night...northwest winds 15 to 20 knots diminishing to
5 to 15 knots.
.saturday...northwest winds 5 to 15 knots becoming east 15 to
20 knots. snow likely saturday night.
.sunday...east winds 15 to 20 knots becoming northwest 10 to
15 knots. snow likely during the day, then a chance of snow
sunday night.
.monday...northwest winds 15 to 20 knots becoming west.
waves omitted due to the lake being mostly ice covered.
$$
(6/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 1/21/2026 9:59 PM America/New_York.
Valid through 1/22/2026 6:00 AM America/New_York.
fzus63 kdtx 220259
glfsc
expires:202601221100;;301339
lake st clair forecast
national weather service detroit/pontiac mi
959 pm est wed jan 21 2026
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...low pressure, 29.70 inches, will exit from the
northern great lakes to quebec this morning. this will draw a
strong arctic cold front across the great lakes. expect elevated
winds/waves, freezing spray, and additional periods of snowfall
including snow squalls.
lcz460-221100-
lake st clair-
959 pm est wed jan 21 2026
.rest of tonight...southwest winds 10 to 15 knots. partly cloudy
this evening...then mostly cloudy with a chance of light snow
showers after midnight.
.thursday...west winds 10 to 15 knots increasing to 15 to 20 knots
with gusts to 30 knots in the late morning and afternoon. partly
sunny.
.thursday night...southwest winds 10 to 15 knots becoming west 15 to
20 knots in the late evening and overnight. partly cloudy. a chance
of light snow showers .
.friday...west winds 15 to 20 knots. partly sunny.
.friday night...northwest winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and overnight. mostly clear.
.saturday...northwest winds 5 to 10 knots veering to the northeast
in the afternoon and evening. partly sunny becoming mostly cloudy.
.sunday...north winds 15 to 20 knots. mostly cloudy with a chance of
light snow.
.monday...west winds 10 to 15 knots. partly cloudy.
waves omitted due to ice coverage.
$$
(7/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 1/21/2026 9:58 PM America/New_York.
Valid through 1/22/2026 6:00 AM America/New_York.
fzus63 kdtx 220258
glflh
expires:202601221100;;301258
open lake forecast for lake huron
national weather service detroit/pontiac mi
958 pm est wed jan 21 2026
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, 29.70 inches, will exit from the
northern great lakes to quebec tomorrow morning. this will draw a
strong arctic cold front across the great lakes. expect elevated
winds/waves, freezing spray, and additional periods of snowfall
including snow squalls.
lhz363-462-221100-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
958 pm est wed jan 21 2026
...heavy freezing spray warning in effect from 6 am est thursday
through late friday night...
...gale warning in effect from thursday morning through late
thursday night...
.rest of tonight...southwest winds 15 to 20 knots. a chance of
snow showers. waves 5 to 7 feet. waves occasionally around
10 feet.
.thursday...west winds 20 to 25 knots increasing to 30 knots in
the late morning and early afternoon...then decreasing to 20 to
25 knots late in the afternoon. gusts to 35 knot gales. freezing
spray. waves 8 to 12 feet. waves occasionally around 15 feet.
.thursday night...west winds 20 to 25 knots increasing to
30 knots by midnight...then decreasing to 20 to 25 knots after
midnight. gusts to 35 knot gales. a chance of snow showers. heavy
freezing spray. waves 8 to 12 feet. waves occasionally around
15 feet.
.friday...west winds 20 to 25 knots. gusts to 30 knots until late
afternoon. heavy freezing spray. waves 8 to 12 feet. waves
occasionally around 15 feet.
.friday night...northwest winds 15 to 20 knots. heavy freezing
spray in the evening. waves 6 to 9 feet. waves occasionally
around 12 feet.
.saturday...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then backing to the southwest late in the
afternoon backing to the south late in the evening. waves 3 to
5 feet subsiding to 1 to 3 feet late in the afternoon.
.sunday...east winds 10 to 15 knots backing to the northeast . a
chance of snow. waves 2 to 4 feet building to 3 to 5 feet.
.monday...north winds 15 to 20 knots backing to the west . waves
4 to 6 feet. waves occasionally around 8 feet.
wave heights are for ice free areas.
$$
(8/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 1/21/2026 9:58 PM America/New_York.
Valid through 1/22/2026 6:00 AM America/New_York.
fzus63 kdtx 220258
glflh
expires:202601221100;;301259
open lake forecast for lake huron
national weather service detroit/pontiac mi
958 pm est wed jan 21 2026
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, 29.70 inches, will exit from the
northern great lakes to quebec tomorrow morning. this will draw a
strong arctic cold front across the great lakes. expect elevated
winds/waves, freezing spray, and additional periods of snowfall
including snow squalls.
lhz463-464-221100-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
958 pm est wed jan 21 2026
...heavy freezing spray warning in effect from 6 am est thursday
through late friday night...
...gale warning in effect from thursday morning through late
thursday night...
.rest of tonight...southwest winds 15 to 20 knots. a chance of
snow showers this evening. waves 3 to 5 feet.
.thursday...west winds 15 to 20 knots increasing to 30 knots in
the late morning and early afternoon...then decreasing to 20 to
25 knots late in the afternoon. gusts to 35 knot gales. freezing
spray in the afternoon. waves 5 to 7 feet. waves occasionally
around 10 feet.
.thursday night...west winds 20 to 25 knots with gusts to 35 knot
gales. a chance of snow showers. waves 5 to 7 feet. waves
occasionally around 10 feet.
.friday...west winds 20 to 25 knots. gusts to 30 knots until late
afternoon. heavy freezing spray. waves 6 to 9 feet. waves
occasionally around 12 feet.
.friday night...west winds 15 to 20 knots. heavy freezing spray
in the evening. waves 5 to 7 feet. waves occasionally around
10 feet.
.saturday...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then backing to the southwest late in the
afternoon becoming southeast 10 to 15 knots late in the evening.
waves 3 to 5 feet subsiding to 1 to 3 feet.
.sunday...east winds 15 to 20 knots becoming northeast 10 to
15 knots. a chance of snow. waves 2 to 4 feet.
.monday...north winds 10 to 15 knots becoming west 15 to
20 knots. waves 3 to 5 feet.
wave heights are for ice free areas.
$$
(9/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 1/21/2026 9:58 PM America/New_York.
Valid through 1/22/2026 6:00 AM America/New_York.
fzus63 kdtx 220258
glflh
expires:202601221100;;301257
open lake forecast for lake huron
national weather service detroit/pontiac mi
958 pm est wed jan 21 2026
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, 29.70 inches, will exit from the
northern great lakes to quebec tomorrow morning. this will draw a
strong arctic cold front across the great lakes. expect elevated
winds/waves, freezing spray, and additional periods of snowfall
including snow squalls.
lhz361-362-221100-
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-
958 pm est wed jan 21 2026
...heavy freezing spray warning in effect from 6 am est thursday
through late friday night...
.rest of tonight...southwest winds 15 to 20 knots becoming west
20 to 25 knots with gusts to around 30 knots early in the
morning. a chance of snow showers this evening. freezing spray
after midnight. waves 5 to 7 feet. waves occasionally around
10 feet.
.thursday...west winds 20 to 25 knots increasing to 30 knots late
in the afternoon. heavy freezing spray. waves 8 to 12 feet. waves
occasionally around 15 feet.
.thursday night...west winds 20 to 25 knots. gusts to 30 knots .
a chance of snow showers. heavy freezing spray. waves 8 to
12 feet. waves occasionally around 15 feet.
.friday...northwest winds 20 to 25 knots. gusts to 30 knots early
in the morning. heavy freezing spray. waves 8 to 12 feet. waves
occasionally around 15 feet.
.friday night...west winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. heavy freezing spray in the evening.
waves 6 to 9 feet. waves occasionally around 12 feet.
.saturday...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then backing to the southwest late in the
evening. waves 3 to 5 feet subsiding to 1 to 3 feet.
.sunday...east winds 10 to 15 knots backing to the northeast by
midnight. waves 3 to 5 feet.
.monday...north winds 15 to 20 knots backing to the west . waves
4 to 6 feet. waves occasionally around 8 feet.
$$
(10/17)
Latest Great Lakes Marine Forecast by KMKX
Issued 1/21/2026 9:17 PM US/Central.
Valid through 1/22/2026 5:00 AM US/Central.
fzus63 kmkx 220317
glflm
expires:202601221100;;302308
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
917 pm cst wed jan 21 2026
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...
low pressure of 29.6 inches will cross lake superior this evening.
an arctic front will surge through wisconsin and across lake
michigan overnight. gale force gusts are expected over the
southern two thirds of lake michigan, where a gale warning is in
effect from now through mid thursday morning. gusty westerly
winds will gradually diminish friday afternoon and night as strong
high pressure around 31.0 inches over the northern plains expands
into the upper midwest. a new gale warning or an extension will
likely be needed with the gusty west winds.
arriving arctic air and elevated wave heights will support
periods of heavy freezing spray tonight into friday night. a
heavy freezing spray warning is in effect for this period.
the high will expand across the great lakes over the weekend
while weakening to 30.5 inches. a weak trough around 30.2 inches
will cross lake superior sunday. the strong high of 30.7 inches
over the northern plains will drop into the central plains at
around 30.5 inches on monday. a low pressure trough averaging 29.8
inches will sweep across the upper great lakes monday afternoon
and night.
lmz080-567-669-671-673-675-777-779-868-870-872-874-876-878-221100-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from two rivers to sheboygan wi 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 pentwater to manistee mi 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-
917 pm cst wed jan 21 2026
two rivers wi to manistee mi south...
...gale warning in effect until 8 am cst thursday...
...heavy freezing spray warning in effect through late friday
night...
.rest of tonight...west winds to 30 kt increasing to gales to
35 kt. chance of snow through early evening. freezing spray
overnight. waves 6 to 9 ft occasionally to 12 ft building to 8 to
12 ft occasionally to 16 ft.
.thursday...west gales to 35 kt increasing to gales to 40 kt.
freezing spray. chance of flurries and slight chance of light
freezing rain in the afternoon. waves 8 to 12 ft occasionally to
16 ft.
.thursday night...west gales to 40 kt becoming northwest to
30 kt. chance of snow in the evening. heavy freezing spray. waves
8 to 12 ft occasionally to 16 ft.
.friday...northwest winds to 30 kt. heavy freezing spray. chance
of snow. waves 8 to 12 ft occasionally to 16 ft subsiding to 7 to
10 ft occasionally to 13 ft.
.friday night...northwest winds 10 to 20 kt. heavy freezing spray
in the evening. chance of snow. waves 5 to 8 ft occasionally to
10 ft subsiding to 3 to 5 ft.
.saturday...north winds 10 to 15 kt. chance of snow. waves 2 to
4 ft.
.saturday night...east winds 10 to 15 kt. chance of snow. waves
2 to 4 ft.
.sunday...east winds 10 to 15 kt becoming northeast. chance of
snow. waves 2 to 4 ft.
.monday...west winds 10 to 20 kt. freezing spray. waves 4 to 6 ft
occasionally to 8 ft.
$$
(11/17)
Latest Great Lakes Marine Forecast by KMKX
Issued 1/21/2026 9:17 PM US/Central.
Valid through 1/22/2026 5:00 AM US/Central.
fzus63 kmkx 220317
glflm
expires:202601221100;;302307
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
917 pm cst wed jan 21 2026
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...
low pressure of 29.6 inches will cross lake superior this evening.
an arctic front will surge through wisconsin and across lake
michigan overnight. gale force gusts are expected over the
southern two thirds of lake michigan, where a gale warning is in
effect from now through mid thursday morning. gusty westerly
winds will gradually diminish friday afternoon and night as strong
high pressure around 31.0 inches over the northern plains expands
into the upper midwest. a new gale warning or an extension will
likely be needed with the gusty west winds.
arriving arctic air and elevated wave heights will support
periods of heavy freezing spray tonight into friday night. a
heavy freezing spray warning is in effect for this period.
the high will expand across the great lakes over the weekend
while weakening to 30.5 inches. a weak trough around 30.2 inches
will cross lake superior sunday. the strong high of 30.7 inches
over the northern plains will drop into the central plains at
around 30.5 inches on monday. a low pressure trough averaging 29.8
inches will sweep across the upper great lakes monday afternoon
and night.
lmz261-362-364-366-563-565-221100-
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-
917 pm cst wed jan 21 2026
two rivers wi to manistee mi north...
...heavy freezing spray warning in effect through late friday
night...
.rest of tonight...west winds to 30 kt increasing to gales to
35 kt. freezing spray through early evening, then heavy freezing
spray overnight. waves 4 to 7 ft occasionally to 9 ft building to
7 to 10 ft occasionally to 13 ft.
.thursday...west gales to 35 kt. heavy freezing spray. chance of
flurries in the afternoon. waves 7 to 10 ft occasionally to 13 ft
building to 8 to 11 ft occasionally to 14 ft.
.thursday night...west gales to 35 kt becoming northwest to
30 kt. heavy freezing spray. waves 8 to 11 ft occasionally to
14 ft subsiding to 7 to 10 ft occasionally to 13 ft.
.friday...northwest winds to 30 kt. chance of snow in the
morning. heavy freezing spray. waves 7 to 10 ft occasionally to
13 ft.
.friday night...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.
.saturday...northwest winds 10 to 15 kt becoming west. waves 1 to
3 ft.
.saturday night...southwest winds 5 to 10 kt increasing to 10 to
15 kt. waves 1 to 3 ft.
.sunday...southeast winds 10 to 15 kt becoming east. waves 1 to
3 ft.
.monday...west winds 10 to 20 kt. waves 3 to 5 ft.
$$
(12/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 1/21/2026 10:01 PM America/New_York.
Valid through 1/22/2026 4:00 AM America/New_York.
fzus63 kmqt 220301
glfls
expires:202601220900;;301414
open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed jan 21 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.6 inch low moves east through ontario and into quebec this
morning. in the wake of the low, a 31.0 inch high pressure will be
over saskatchewan, shifting over the dakotas friday and
overspreading the upper midwest at around 30.7 inches saturday.
remnant ridging of at least 30.3 inches remains over lake superior
through sunday. a 29.8 inch trough will approach the lake on monday
afternoon as the high pressure slides south and east, away from the
area.
lsz264-220900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est wed jan 21 2026
...heavy freezing spray warning in effect through late friday
night...
.rest of tonight...northwest winds 15 to 25 knots increasing to
20 to 30 knots late. heavy freezing spray. a chance of snow
showers. waves 4 to 8 feet occasionally to 10 feet.
.thursday...northwest winds 20 to 30 knots. heavy freezing spray.
a chance of snow showers. waves building to 6 to 9 feet
occasionally to 11 feet.
.thursday night...northwest winds 20 to 30 knots. areas of dense
fog in the evening. heavy freezing spray. snow showers likely.
waves building to 7 to 10 feet occasionally to 13 feet.
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. heavy freezing spray. snow showers
likely in the morning. a chance of snow showers in the afternoon.
waves subsiding to 3 to 6 feet occasionally to 8 feet.
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. heavy freezing spray in the
evening. a chance of snow showers. waves subsiding to 2 to
4 feet.
.saturday...northwest winds 5 to 15 knots backing west in the
afternoon. a chance of snow showers. waves subsiding to calm to
2 feet.
.saturday night...west winds 5 to 15 knots. a chance of snow
showers in the evening. waves calm to 2 feet.
.sunday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 2 to 4 feet.
.monday...west winds 20 to 30 knots. freezing spray. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet.
note, wave height forecasts are for ice free areas.
$$
(13/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 1/21/2026 10:01 PM America/New_York.
Valid through 1/22/2026 4:00 AM America/New_York.
fzus63 kmqt 220301
glfls
expires:202601220900;;301415
open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed jan 21 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.6 inch low moves east through ontario and into quebec this
morning. in the wake of the low, a 31.0 inch high pressure will be
over saskatchewan, shifting over the dakotas friday and
overspreading the upper midwest at around 30.7 inches saturday.
remnant ridging of at least 30.3 inches remains over lake superior
through sunday. a 29.8 inch trough will approach the lake on monday
afternoon as the high pressure slides south and east, away from the
area.
lsz265-220900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est wed jan 21 2026
...heavy freezing spray warning in effect through late friday
night...
...gale warning in effect from 7 am est thursday through friday
afternoon...
.rest of tonight...northwest gales to 35 knots. heavy freezing
spray. a chance of snow showers late in the evening. snow showers
likely after midnight. waves 3 to 6 feet occasionally to 8 feet
building to 4 to 7 feet occasionally to 9 feet.
.thursday...northwest gales to 40 knots. heavy freezing spray.
snow showers likely. waves building to 5 to 8 feet occasionally
to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet.
.thursday night...northwest gales to 40 knots. patchy fog in the
evening. heavy freezing spray. snow showers likely. waves
building to 7 to 10 feet occasionally to 13 feet.
.friday...northwest gales to 35 knots. heavy freezing spray. snow
showers likely. waves subsiding to 4 to 7 feet occasionally to
9 feet.
.friday night...northwest winds 20 to 30 knots becoming west
15 to 25 knots after midnight. heavy freezing spray in the
evening. snow showers likely in the evening, then a chance of
snow showers after midnight. waves subsiding to 2 to 4 feet.
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. a chance of snow showers. waves
subsiding to calm to 2 feet.
.saturday night...west winds 10 to 20 knots. waves calm to
2 feet.
.sunday...west winds 10 to 20 knots becoming northwest 15 to
25 knots. waves building to 2 to 4 feet.
.monday...west winds 20 to 30 knots. waves building to 3 to
5 feet occasionally to 7 feet.
note, wave height forecasts are for ice free areas.
$$
(14/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 1/21/2026 10:01 PM America/New_York.
Valid through 1/22/2026 4:00 AM America/New_York.
fzus63 kmqt 220301
glfls
expires:202601220900;;301416
open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed jan 21 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.6 inch low moves east through ontario and into quebec this
morning. in the wake of the low, a 31.0 inch high pressure will be
over saskatchewan, shifting over the dakotas friday and
overspreading the upper midwest at around 30.7 inches saturday.
remnant ridging of at least 30.3 inches remains over lake superior
through sunday. a 29.8 inch trough will approach the lake on monday
afternoon as the high pressure slides south and east, away from the
area.
lsz266-220900-
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 wed jan 21 2026
...heavy freezing spray warning in effect through saturday
morning...
...gale warning in effect from 7 am est thursday through friday
afternoon...
.rest of tonight...northwest gales to 35 knots. heavy freezing
spray. snow showers likely. waves 5 to 8 feet occasionally to
10 feet building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 6 to 9 feet occasionally to 11 feet.
.thursday...northwest gales to 40 knots. heavy freezing spray.
snow showers. waves building to 7 to 11 feet occasionally to
14 feet.
.thursday night...northwest gales to 40 knots. patchy fog in the
evening. heavy freezing spray. snow showers. waves building to
10 to 14 feet occasionally to 18 feet.
.friday...northwest gales to 40 knots. heavy freezing spray. snow
showers. waves subsiding to 7 to 10 feet occasionally to 13 feet.
.friday night...northwest winds 20 to 30 knots. heavy freezing
spray. snow showers likely. waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.saturday...northwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon. a chance of snow showers. waves
subsiding to 1 to 3 feet.
.saturday night...west winds 10 to 20 knots backing southwest
after midnight. a chance of snow showers. waves 1 to 3 feet.
.sunday...west winds 10 to 20 knots becoming northwest 15 to
25 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet.
.monday...northwest winds 20 to 30 knots backing west. freezing
spray. a chance of snow showers. waves building to 4 to 8 feet
occasionally to 10 feet.
note, wave height forecasts are for ice free areas.
$$
(15/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 1/21/2026 10:01 PM America/New_York.
Valid through 1/22/2026 4:00 AM America/New_York.
fzus63 kmqt 220301
glfls
expires:202601220900;;301417
open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed jan 21 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.6 inch low moves east through ontario and into quebec this
morning. in the wake of the low, a 31.0 inch high pressure will be
over saskatchewan, shifting over the dakotas friday and
overspreading the upper midwest at around 30.7 inches saturday.
remnant ridging of at least 30.3 inches remains over lake superior
through sunday. a 29.8 inch trough will approach the lake on monday
afternoon as the high pressure slides south and east, away from the
area.
lsz267-220900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est wed jan 21 2026
...heavy freezing spray warning in effect through saturday
morning...
...gale warning in effect from 7 am est thursday through friday
afternoon...
.rest of tonight...west winds 20 to 30 knots becoming northwest
gales to 35 knots by midnight. freezing spray. snow showers
likely. waves 4 to 7 feet occasionally to 9 feet building to 7 to
10 feet occasionally to 13 feet.
.thursday...west gales to 35 knots veering northwest by mid
afternoon. heavy freezing spray. snow showers. waves building to
7 to 11 feet occasionally to 14 feet.
.thursday night...northwest gales to 35 knots diminishing to
20 to 30 knots by midnight, then veering north late. heavy
freezing spray. snow showers. waves building to 9 to 12 feet
occasionally to 15 feet.
.friday...northwest winds 20 to 30 knots. heavy freezing spray.
snow showers. waves subsiding to 7 to 10 feet occasionally to
13 feet.
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. heavy freezing spray. snow showers
likely. waves subsiding to 3 to 6 feet occasionally to 8 feet.
.saturday...northwest winds 10 to 20 knots backing west in the
afternoon. a chance of snow showers. waves subsiding to 2 to
4 feet.
.saturday night...southwest winds 10 to 20 knots. a chance of
snow showers. waves subsiding to 1 to 3 feet.
.sunday...south winds 10 to 20 knots veering northwest. a chance
of snow showers. waves building to 3 to 5 feet occasionally to
7 feet.
.monday...northwest winds 15 to 25 knots becoming west 20 to
30 knots. freezing spray. a chance of snow showers. waves
building to 5 to 8 feet occasionally to 10 feet.
note, wave height forecasts are for ice free areas.
$$
(16/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 1/21/2026 10:01 PM America/New_York.
Valid through 1/22/2026 4:00 AM America/New_York.
fzus63 kmqt 220301
glfls
expires:202601220900;;301412
open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed jan 21 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.6 inch low moves east through ontario and into quebec this
morning. in the wake of the low, a 31.0 inch high pressure will be
over saskatchewan, shifting over the dakotas friday and
overspreading the upper midwest at around 30.7 inches saturday.
remnant ridging of at least 30.3 inches remains over lake superior
through sunday. a 29.8 inch trough will approach the lake on monday
afternoon as the high pressure slides south and east, away from the
area.
lsz162-220900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est wed jan 21 2026 /900 pm cst wed jan 21 2026/
...heavy freezing spray warning in effect through friday
afternoon...
.rest of tonight...northwest winds 20 to 30 knots. a slight
chance of snow showers. heavy freezing spray after midnight.
waves 3 to 6 feet occasionally to 8 feet.
.thursday...northwest winds 15 to 25 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible. a slight chance
of snow showers. heavy freezing spray and patchy dense fog in the
afternoon. waves subsiding to 3 to 5 feet occasionally to 7 feet,
then building to 5 to 8 feet occasionally to 10 feet.
.thursday night...northwest winds to 30 knots with a few gale
force gusts to 35 knots possible diminishing to 20 to 30 knots
late. patchy fog in the evening. heavy freezing spray. a chance
of snow showers. waves subsiding to 3 to 6 feet occasionally to
8 feet.
.friday...northwest winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 2 to 4 feet.
.friday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a chance of snow showers. waves
subsiding to calm to 2 feet.
.saturday...west winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. waves calm to 2 feet.
.saturday night...west winds 5 to 15 knots. waves calm to 2 feet.
.sunday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet.
.monday...west winds 15 to 25 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.
note, wave height forecasts are for ice free areas.
$$
(17/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 1/21/2026 10:01 PM America/New_York.
Valid through 1/22/2026 4:00 AM America/New_York.
fzus63 kmqt 220301
glfls
expires:202601220900;;301413
open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed jan 21 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.6 inch low moves east through ontario and into quebec this
morning. in the wake of the low, a 31.0 inch high pressure will be
over saskatchewan, shifting over the dakotas friday and
overspreading the upper midwest at around 30.7 inches saturday.
remnant ridging of at least 30.3 inches remains over lake superior
through sunday. a 29.8 inch trough will approach the lake on monday
afternoon as the high pressure slides south and east, away from the
area.
lsz263-220900-
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 wed jan 21 2026
...heavy freezing spray warning in effect through friday
evening...
.rest of tonight...northwest winds 20 to 30 knots. heavy freezing
spray. a chance of snow showers. waves 4 to 8 feet occasionally
to 10 feet.
.thursday...northwest winds 20 to 30 knots. heavy freezing spray.
patchy dense fog in the afternoon. a chance of snow showers.
waves building to 5 to 9 feet occasionally to 11 feet.
.thursday night...northwest winds 20 to 30 knots. areas of dense
fog in the evening. heavy freezing spray. snow showers likely in
the evening. a chance of snow showers after midnight. waves
building to 6 to 10 feet occasionally to 13 feet.
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. heavy freezing spray. a chance of snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet.
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a chance of snow showers. waves
subsiding to 1 to 3 feet.
.saturday...west winds 5 to 15 knots. a chance of snow showers.
waves subsiding to calm to 2 feet.
.saturday night...west winds 5 to 15 knots backing southwest
after midnight. a chance of snow showers in the evening. waves
calm to 2 feet.
.sunday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet.
.monday...west winds 20 to 30 knots. heavy freezing spray. waves
building to 3 to 6 feet occasionally to 8 feet.
note, wave height forecasts are for ice free areas.
$$
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