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(1/18)
Latest Great Lakes Marine Forecast by KBUF
Issued 2/27/2026 10:03 PM America/New_York.
Valid through 2/28/2026 5:00 AM America/New_York.
fzus61 kbuf 280303
glflo
expires:202602281000;;369447
open lake forecast for lake ontario
national weather service buffalo ny
1003 pm est fri feb 27 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 29.2 inch low will strengthen to 29.0 inches as it
moves from north of lake superior to northern quebec tonight and
saturday while swinging a cold front across the lake late tonight
and saturday morning, followed by a secondary cold front that will
move across the lake saturday night. a 30.6 inch high will then
settle across the great lakes sunday, new england monday, and across
the western atlantic tuesday. a cold front will cross the lake late
tuesday and tuesday night, followed by a 30.4 inch high building
into the lower great lakes on wednesday.
loz064-065-281000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1003 pm est fri feb 27 2026
.overnight...south winds to 30 knots. a chance of rain
showers late. waves 3 to 5 feet building to 5 to 8 feet. waves
occasionally around 10 feet.
.saturday...southwest winds 15 to 25 knots becoming west. a
chance of rain showers early. waves 4 to 7 feet subsiding to 3 to
6 feet. waves occasionally around 9 feet.
.saturday night...northwest winds 10 to 15 knots becoming north.
a chance of snow showers overnight. waves 3 to 5 feet subsiding
to 1 to 3 feet.
.sunday...north winds 10 to 15 knots becoming northwest. a chance
of snow showers in the morning. waves 1 to 3 feet.
.sunday night...northwest winds 5 to 15 knots becoming north.
waves 1 to 3 feet.
.monday...north winds 5 to 10 knots becoming south and increasing
to 15 to 20 knots. waves 2 feet or less building to 2 to 4 feet.
.tuesday...south winds 15 to 20 knots becoming west. a chance of
snow showers during the day, then a chance of snow and rain
showers tuesday night. waves 3 to 5 feet subsiding to 2 to
4 feet.
.wednesday...north winds 15 to 20 knots becoming east. a chance
of snow showers during the day, then a chance of rain showers
wednesday night. waves 2 to 4 feet.
$$
(2/18)
Latest Great Lakes Marine Forecast by KBUF
Issued 2/27/2026 10:03 PM America/New_York.
Valid through 2/28/2026 5:00 AM America/New_York.
fzus61 kbuf 280303
glflo
expires:202602281000;;369446
open lake forecast for lake ontario
national weather service buffalo ny
1003 pm est fri feb 27 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 29.2 inch low will strengthen to 29.0 inches as it
moves from north of lake superior to northern quebec tonight and
saturday while swinging a cold front across the lake late tonight
and saturday morning, followed by a secondary cold front that will
move across the lake saturday night. a 30.6 inch high will then
settle across the great lakes sunday, new england monday, and across
the western atlantic tuesday. a cold front will cross the lake late
tuesday and tuesday night, followed by a 30.4 inch high building
into the lower great lakes on wednesday.
loz062-063-281000-
lake ontario open waters from the niagara river to sodus bay-
1003 pm est fri feb 27 2026
.overnight...south winds 15 to 25 knots becoming southwest
to 30 knots. a chance of rain showers. waves 3 to
5 feet building to 4 to 7 feet. waves occasionally around 9 feet.
.saturday...west winds 15 to 20 knots becoming northwest. waves
4 to 7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet.
.saturday night...northwest winds 15 to 20 knots becoming north
10 to 15 knots. a chance of snow showers. waves 3 to 5 feet
subsiding to 1 to 3 feet.
.sunday...north winds 10 to 15 knots becoming northwest. a chance
of snow showers in the morning. waves 2 to 3 feet.
.sunday night...northwest winds 5 to 15 knots becoming north.
waves 1 to 3 feet.
.monday...northwest winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet.
.tuesday...south winds 15 to 20 knots becoming northwest. a
chance of snow showers during the day, then a chance of rain and
snow showers tuesday night. waves 2 to 4 feet.
.wednesday...north winds 15 to 20 knots becoming east. a chance
of rain showers wednesday night. waves 2 to 4 feet.
$$
(3/18)
Latest Great Lakes Marine Forecast by KCLE
Issued 2/27/2026 9:15 PM America/New_York.
Valid through 2/28/2026 4:15 AM America/New_York.
fzus61 kcle 280215
glfle
expires:202602280915;;368137
open lake forecast for lake erie
national weather service cleveland oh
915 pm est fri feb 27 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...
low pressure deepens to 29.10 inches as it pushes across the
northern great lakes tonight, moving a cold front east across lake
erie late tonight. a trough averaging 30.20 inches lingers across
the eastern great lakes saturday night into sunday. high pressure
30.50 inches returns sunday as it builds from the upper midwest
eastward towards new england and persist into tuesday.
lez162-163-280915-
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-
915 pm est fri feb 27 2026
.overnight...south winds 15 to 20 knots becoming west. a
slight chance of rain. waves 1 to 3 feet.
.saturday...west winds 5 to 15 knots becoming northeast. waves
2 feet or less.
.saturday night...east winds 10 to 15 knots becoming northeast.
snow in the evening, then a chance of snow overnight. waves
1 foot or less building to 1 to 3 feet.
.sunday...north winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of snow in the morning. waves 1 to 3 feet
subsiding to 1 foot or less.
.sunday night...northeast winds 5 to 10 knots becoming east.
waves 1 foot or less.
.monday...east winds 5 to 10 knots becoming southeast. a chance
of rain monday night. waves 2 feet or less.
.tuesday...southeast winds 5 to 15 knots becoming north. rain
likely during the day, then a chance of rain tuesday night. waves
2 feet or less.
.wednesday...northeast winds 10 to 15 knots becoming east 15 to
20 knots. a chance of rain wednesday night. waves 2 feet or less
building to 2 to 4 feet.
$$
(4/18)
Latest Great Lakes Marine Forecast by KCLE
Issued 2/27/2026 9:15 PM America/New_York.
Valid through 2/28/2026 4:15 AM America/New_York.
fzus61 kcle 280215
glfle
expires:202602280915;;368138
open lake forecast for lake erie
national weather service cleveland oh
915 pm est fri feb 27 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...
low pressure deepens to 29.10 inches as it pushes across the
northern great lakes tonight, moving a cold front east across lake
erie late tonight. a trough averaging 30.20 inches lingers across
the eastern great lakes saturday night into sunday. high pressure
30.50 inches returns sunday as it builds from the upper midwest
eastward towards new england and persist into tuesday.
lez164>166-280915-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-
915 pm est fri feb 27 2026
.overnight...south winds 15 to 25 knots becoming west. a
slight chance of rain. waves 2 to 4 feet building
to 3 to 5 feet.
.saturday...west winds 5 to 15 knots becoming northeast. waves
2 to 4 feet subsiding to 2 feet or less.
.saturday night...northeast winds 10 to 15 knots becoming north
15 to 20 knots. snow. waves 1 to 3 feet.
.sunday...north winds 15 to 20 knots diminishing to 10 to
15 knots. snow in the morning. waves 1 to 3 feet.
.sunday night...north winds 5 to 10 knots becoming east. waves
1 foot or less.
.monday...east winds 5 to 10 knots becoming southeast. a chance
of rain monday night. waves 2 feet or less.
.tuesday...southeast winds 10 to 15 knots becoming north 15 to
20 knots. rain likely during the day, then a chance of rain
tuesday night. waves 2 feet or less.
.wednesday...northeast winds 10 to 15 knots becoming east 15 to
20 knots. a chance of rain wednesday night. waves 2 feet or less
building to 2 to 4 feet.
$$
(5/18)
Latest Great Lakes Marine Forecast by KCLE
Issued 2/27/2026 9:15 PM America/New_York.
Valid through 2/28/2026 4:15 AM America/New_York.
fzus61 kcle 280215
glfle
expires:202602280915;;368139
open lake forecast for lake erie
national weather service cleveland oh
915 pm est fri feb 27 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...
low pressure deepens to 29.10 inches as it pushes across the
northern great lakes tonight, moving a cold front east across lake
erie late tonight. a trough averaging 30.20 inches lingers across
the eastern great lakes saturday night into sunday. high pressure
30.50 inches returns sunday as it builds from the upper midwest
eastward towards new england and persist into tuesday.
lez061-167>169-280915-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
915 pm est fri feb 27 2026
.overnight...south winds 15 to 20 knots becoming southwest.
a chance of rain. waves 1 foot or less.
.saturday...west winds 15 to 20 knots becoming north and
diminishing to 5 to 10 knots. waves 1 foot or less.
.saturday night...north winds 5 to 15 knots. a chance of snow in
the evening, then snow overnight. waves 1 foot or less.
.sunday...north winds 5 to 15 knots becoming northwest. snow in
the morning. waves 1 foot or less.
.sunday night...north winds 5 to 10 knots becoming northeast.
waves 1 foot or less.
.monday...east winds 5 to 10 knots becoming southeast. waves
1 foot or less.
.tuesday...southeast winds 5 to 15 knots becoming northwest. rain
likely during the day, then a chance of rain tuesday night. waves
1 foot or less.
.wednesday...northeast winds 5 to 15 knots becoming east 15 to
20 knots. a chance of rain wednesday night. waves 1 foot or less.
$$
(6/18)
Latest Great Lakes Marine Forecast by KDTX
Issued 2/27/2026 9:51 PM America/New_York.
Valid through 2/28/2026 6:00 AM America/New_York.
fzus63 kdtx 280251
glflh
expires:202602281100;;368774
open lake forecast for lake huron
national weather service detroit/pontiac mi
951 pm est fri feb 27 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...strong northern ontario low pressure, 29.00 inches,
sends an arctic cold front through the central great lakes
tonight bringing the next short period of northwest gales as well
as areas of freezing spray. high pressure, 30.70 inches, then
follows for the latter half of the weekend.
lhz363-281100-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
951 pm est fri feb 27 2026
.rest of tonight...south winds 20 to 25 knots with gusts to
around 30 knots becoming southwest 15 to 20 knots after
midnight...then veering to the west with gusts to around 30 knots
early in the morning. freezing spray after midnight. waves 5 to
7 feet building to 8 to 12 feet early in the morning. waves
occasionally around 15 feet.
.saturday...northwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots in the afternoon. freezing
spray. waves 6 to 9 feet. waves occasionally around 12 feet.
.saturday night...north winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. freezing spray after
midnight. waves 3 to 5 feet.
.sunday...north winds 10 to 15 knots. waves 3 to 5 feet.
.sunday night...north winds 5 to 10 knots veering to the
northeast by midnight...then backing to the west after midnight.
waves 1 to 3 feet.
.monday...southwest winds 5 to 10 knots becoming south 10 to
15 knots late in the morning...then increasing to 15 to 20 knots
late in the evening. waves 1 to 3 feet building to 3 to 5 feet
late in the afternoon.
.tuesday...south winds 10 to 15 knots backing to the northeast
early in the evening...then backing to the north by midnight.
waves 2 to 4 feet building to 3 to 5 feet by midnight.
.wednesday...northwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and early afternoon...then backing
to the southeast early in the evening increasing to 15 to
20 knots by midnight. waves 3 to 5 feet subsiding to 1 to 3 feet
early in the evening...then building to 3 to 5 feet by midnight.
wave heights are for ice free areas.
$$
(7/18)
Latest Great Lakes Marine Forecast by KDTX
Issued 2/27/2026 9:51 PM America/New_York.
Valid through 2/28/2026 6:00 AM America/New_York.
fzus63 kdtx 280251
glflh
expires:202602281100;;368775
open lake forecast for lake huron
national weather service detroit/pontiac mi
951 pm est fri feb 27 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...strong northern ontario low pressure, 29.00 inches,
sends an arctic cold front through the central great lakes
tonight bringing the next short period of northwest gales as well
as areas of freezing spray. high pressure, 30.70 inches, then
follows for the latter half of the weekend.
lhz462>464-281100-
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-
951 pm est fri feb 27 2026
.rest of tonight...southwest winds 15 to 20 knots veering to the
west early in the morning. waves 3 to 5 feet.
.saturday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then becoming
northwest 10 to 15 knots late in the afternoon. waves 2 to
4 feet.
.saturday night...north winds 10 to 15 knots. a chance of snow in
the evening. waves 2 to 4 feet subsiding to 1 to 3 feet by
midnight...then building to 3 to 5 feet after midnight.
.sunday...north winds 10 to 15 knots. waves 3 to 5 feet.
.sunday night...north winds 5 to 10 knots veering to the east
after midnight. waves 1 to 3 feet.
.monday...southeast winds 5 to 10 knots increasing to 10 to
15 knots. waves 1 to 3 feet.
.tuesday...southeast winds 10 to 15 knots becoming east 5 to
10 knots early in the evening...then becoming north 10 to
15 knots by midnight. a chance of snow until early evening. waves
1 to 3 feet.
.wednesday...north winds 5 to 10 knots veering to the southeast
early in the evening...then becoming east 10 to 15 knots by
midnight. a chance of rain by midnight. waves 2 to 4 feet
subsiding to 1 to 3 feet .
wave heights are for ice free areas.
$$
(8/18)
Latest Great Lakes Marine Forecast by KDTX
Issued 2/27/2026 9:51 PM America/New_York.
Valid through 2/28/2026 6:00 AM America/New_York.
fzus63 kdtx 280251
glfsc
expires:202602281100;;368777
lake st clair forecast
national weather service detroit/pontiac mi
951 pm est fri feb 27 2026
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...strong northern ontario low pressure, 29.00 inches,
sends an arctic cold front through the central great lakes
tonight bringing the next short period of northwest gales as well
as areas of freezing spray. high pressure, 30.70 inches, then
follows for the latter half of the weekend.
lcz460-281100-
lake st clair-
951 pm est fri feb 27 2026
.rest of tonight...southwest winds 15 to 20 knots becoming west 10
to 15 knots early in the morning. mostly cloudy this evening
becoming partly cloudy.
.saturday...northwest winds 10 to 15 knots becoming north 5 to 10
knots in the late morning and afternoon. mostly sunny.
.saturday night...northeast winds 10 to 15 knots. mostly cloudy.
light snow likely ...then a chance of light snow after midnight.
.sunday...north winds 10 to 15 knots diminishing to 5 to 10 knots
early in the afternoon. partly sunny.
.sunday night...northeast winds 5 to 10 knots veering to the east
after midnight. partly cloudy.
.monday...southeast winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon...then diminishing to 5 to 10 knots in the evening.
partly sunny becoming sunny in the afternoon becoming partly cloudy.
.tuesday...north winds 10 to 15 knots. mostly cloudy with a chance
of light rain and snow.
.wednesday...east winds 10 to 15 knots. mostly cloudy. a chance of
light rain.
waves omitted due to ice coverage.
$$
(9/18)
Latest Great Lakes Marine Forecast by KDTX
Issued 2/27/2026 9:51 PM America/New_York.
Valid through 2/28/2026 6:00 AM America/New_York.
fzus63 kdtx 280251
glflh
expires:202602281100;;368773
open lake forecast for lake huron
national weather service detroit/pontiac mi
951 pm est fri feb 27 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...strong northern ontario low pressure, 29.00 inches,
sends an arctic cold front through the central great lakes
tonight bringing the next short period of northwest gales as well
as areas of freezing spray. high pressure, 30.70 inches, then
follows for the latter half of the weekend.
lhz361-362-281100-
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-
951 pm est fri feb 27 2026
...gale warning in effect until 9 am est saturday...
...heavy freezing spray warning in effect until 9 am est
saturday...
.rest of tonight...southwest winds 20 to 25 knots with gusts to
around 30 knots becoming west to 30 knots with gusts to 40 knot
gales after midnight. heavy freezing spray after midnight. waves
10 to 14 feet. waves occasionally around 18 feet.
.saturday...west winds to 30 knots with gusts to 35 knot gales
becoming northwest 15 to 20 knots. freezing spray. waves 10 to
14 feet subsiding to 5 to 7 feet late in the afternoon. waves
occasionally around 18 feet.
.saturday night...northwest winds 10 to 15 knots increasing to
15 to 20 knots by midnight...then becoming north 10 to 15 knots
after midnight. freezing spray. waves 3 to 5 feet.
.sunday...north winds 10 to 15 knots. waves 3 to 5 feet subsiding
to 1 to 3 feet early in the afternoon.
.sunday night...west winds 5 to 10 knots. waves 1 to 3 feet.
.monday...southwest winds 5 to 10 knots becoming south 10 to
15 knots late in the morning...then increasing to 15 to 20 knots
late in the afternoon. freezing spray late in the evening. waves
1 to 3 feet building to 5 to 7 feet. waves occasionally around
10 feet.
.tuesday...south winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then veering
to the north . waves 4 to 6 feet. waves occasionally around
8 feet.
.wednesday...west winds 10 to 15 knots backing to the southwest
in the late morning and early afternoon...then backing to the
south early in the evening becoming southeast 15 to 20 knots by
midnight. waves 3 to 5 feet subsiding to 1 to 3 feet early in the
evening...then building to 4 to 6 feet by midnight. waves
occasionally around 8 feet.
wave heights are for ice free areas.
$$
(10/18)
Latest Great Lakes Marine Forecast by KMKX
Issued 2/27/2026 9:02 PM US/Central.
Valid through 2/28/2026 4:30 AM US/Central.
fzus63 kmkx 280302
glflm
expires:202602281030;;369415
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 pm cst fri feb 27 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 deepening to around 29.1 inches over ontario this
evening dragged a cold front across northern lake michigan
tonight. westerly gale force gusts over 40 kt are ongoing and
will become northwesterly after midnight. look for gusts to
diminish below gales early saturday morning. then the low pressure
will lift northeast through the day saturday with gusty northerly
winds lingering until an arctic high pressure builds to around
30.7 inches across the upper midwest saturday evening and
gradually slides east through the start of next week. expect
lighter winds to accompany this high pressure and eventually turn
southerly monday into mid next week.
lmz080-669-671-673-675-777-779-870-872-874-876-878-281030-
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-
902 pm cst fri feb 27 2026
sheboygan wi to pentwater mi south...
.rest of tonight...west winds to 30 kt becoming northwest. waves
6 to 9 ft occasionally to 12 ft.
.saturday...north winds 10 to 20 kt. slight chance of snow in the
morning, then chance of snow in the afternoon. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft.
.saturday night...north winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft.
.sunday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.sunday night...northeast winds 5 to 10 kt becoming east 10 to
15 kt. waves 2 to 4 ft.
.monday...southeast winds 10 to 20 kt. waves 3 to 5 ft.
.monday night...southeast winds 10 to 20 kt. chance of rain.
waves 4 to 6 ft occasionally to 8 ft.
.tuesday...southeast winds 10 to 20 kt becoming northeast 10 to
15 kt. chance of rain and snow. waves 3 to 5 ft.
.wednesday...east winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft.
$$
(11/18)
Latest Great Lakes Marine Forecast by KMKX
Issued 2/27/2026 9:02 PM US/Central.
Valid through 2/28/2026 4:30 AM US/Central.
fzus63 kmkx 280302
glflm
expires:202602281030;;369413
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 pm cst fri feb 27 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 deepening to around 29.1 inches over ontario this
evening dragged a cold front across northern lake michigan
tonight. westerly gale force gusts over 40 kt are ongoing and
will become northwesterly after midnight. look for gusts to
diminish below gales early saturday morning. then the low pressure
will lift northeast through the day saturday with gusty northerly
winds lingering until an arctic high pressure builds to around
30.7 inches across the upper midwest saturday evening and
gradually slides east through the start of next week. expect
lighter winds to accompany this high pressure and eventually turn
southerly monday into mid next week.
lmz261-362-364-563-281030-
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 rock island passage to sturgeon bay wi-
902 pm cst fri feb 27 2026
sturgeon bay wi to point betsie mi north...
...gale warning in effect until 2 am cst saturday...
.rest of tonight...west gales to 45 kt becoming northwest to
30 kt. chance of rain and snow showers. freezing spray overnight.
waves 6 to 9 ft occasionally to 12 ft.
.saturday...northwest winds to 30 kt diminishing to 10 to 20 kt.
slight chance of snow in the afternoon. waves 4 to 7 ft
occasionally to 9 ft subsiding to 1 to 3 ft.
.saturday night...north winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft.
.sunday...north winds 10 to 15 kt becoming northwest 5 to 10 kt.
waves 2 to 4 ft subsiding to 1 to 2 ft.
.sunday night...west winds 5 to 10 kt becoming southwest. waves
1 ft or less.
.monday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft building to 3 to 5 ft.
.monday night...south winds 15 to 25 kt becoming southwest. waves
4 to 6 ft occasionally to 8 ft.
.tuesday...south winds 10 to 20 kt veering to north 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.wednesday...south winds 10 to 15 kt. waves 1 to 2 ft.
$$
(12/18)
Latest Great Lakes Marine Forecast by KMKX
Issued 2/27/2026 9:02 PM US/Central.
Valid through 2/28/2026 4:30 AM US/Central.
fzus63 kmkx 280302
glflm
expires:202602281030;;369414
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 pm cst fri feb 27 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 deepening to around 29.1 inches over ontario this
evening dragged a cold front across northern lake michigan
tonight. westerly gale force gusts over 40 kt are ongoing and
will become northwesterly after midnight. look for gusts to
diminish below gales early saturday morning. then the low pressure
will lift northeast through the day saturday with gusty northerly
winds lingering until an arctic high pressure builds to around
30.7 inches across the upper midwest saturday evening and
gradually slides east through the start of next week. expect
lighter winds to accompany this high pressure and eventually turn
southerly monday into mid next week.
lmz366-565-567-868-281030-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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-
902 pm cst fri feb 27 2026
sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...
.rest of tonight...west winds to 30 kt becoming northwest after
midnight, then diminishing to 15 to 25 kt late. waves 6 to 9 ft
occasionally to 12 ft.
.saturday...northwest winds 10 to 20 kt becoming north. chance of
snow in the afternoon. waves 4 to 7 ft occasionally to 9 ft
subsiding to 3 to 5 ft.
.saturday night...north winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft building to 3 to 5 ft.
.sunday...north winds 10 to 20 kt diminishing to 5 to 10 kt in
the afternoon. waves 3 to 5 ft subsiding to 2 to 4 ft.
.sunday night...north winds 5 to 10 kt backing to south. waves
1 to 2 ft.
.monday...south winds 10 to 20 kt. waves 2 to 4 ft building to
3 to 5 ft.
.monday night...south winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft.
.tuesday...southeast winds 10 to 20 kt backing to northeast.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.wednesday...east winds 10 to 15 kt becoming southeast. waves
1 to 3 ft.
$$
(13/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 2/27/2026 10:00 PM America/New_York.
Valid through 2/28/2026 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202602280900;;369257
open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri feb 27 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 29.2 inch clipper low moving through northern ontario tonight is
sending a 29.4 inch trough over the lake tonight. the low deepens
further to 29.0 inches near james bay by saturday morning, while
high pressure builds o 30.6 inches over the canadian prairies. this
brings ridging of at least 30.4 inches over the lake by saturday
afternoon, building to 30.6 inches sunday before a weak 30.1 inch
trough slides through monday.
lsz162-280900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est fri feb 27 2026 /900 pm cst fri feb 27 2026/
...gale warning in effect until 5 am est /4 am cst/ saturday...
...heavy freezing spray warning in effect until 7 am est /6 am
cst/ saturday...
.rest of tonight...northwest gales to 40 knots diminishing to
15 to 25 knots late. heavy freezing spray late in the evening.
waves 8 to 11 feet occasionally to 14 feet subsiding to 3 to
5 feet occasionally to 7 feet.
.saturday...northwest winds 10 to 20 knots. waves subsiding to
calm to 2 feet.
.saturday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots by midnight. waves calm to 2 feet.
.sunday...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet.
.sunday night...southeast winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet.
.monday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
.monday night...southwest gales to 35 knots. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 1 to
3 feet.
.tuesday...southwest winds 20 to 30 knots becoming west 15 to
25 knots. waves subsiding to calm to 2 feet.
.wednesday...west winds 10 to 20 knots becoming east 15 to
25 knots. waves building to 5 to 8 feet occasionally to 10 feet.
note, wave height forecasts are for ice free areas.
$$
(14/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 2/27/2026 10:00 PM America/New_York.
Valid through 2/28/2026 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202602280900;;369258
open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri feb 27 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 29.2 inch clipper low moving through northern ontario tonight is
sending a 29.4 inch trough over the lake tonight. the low deepens
further to 29.0 inches near james bay by saturday morning, while
high pressure builds o 30.6 inches over the canadian prairies. this
brings ridging of at least 30.4 inches over the lake by saturday
afternoon, building to 30.6 inches sunday before a weak 30.1 inch
trough slides through monday.
lsz263-280900-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1000 pm est fri feb 27 2026
...gale warning in effect until 5 am est saturday...
...heavy freezing spray warning in effect until 10 am est
saturday...
.rest of tonight...northwest gales to 40 knots diminishing to
20 to 30 knots late. heavy freezing spray. waves 10 to 14 feet
occasionally to 18 feet subsiding to 3 to 6 feet occasionally to
8 feet.
.saturday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet.
.saturday night...northwest winds 5 to 15 knots veering north by
midnight, then backing northwest late. waves calm to 2 feet.
.sunday...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet.
.sunday night...south winds 5 to 15 knots. waves calm to 2 feet.
.monday...southwest winds 10 to 20 knots. waves building to 3 to
5 feet occasionally to 7 feet.
.monday night...southwest gales to 35 knots. waves building to
3 to 6 feet occasionally to 8 feet.
.tuesday...southwest winds 20 to 30 knots veering west. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet.
.wednesday...west winds 20 to 30 knots backing east. waves
subsiding to calm to 2 feet, then building to 6 to 9 feet
occasionally to 11 feet.
note, wave height forecasts are for ice free areas.
$$
(15/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 2/27/2026 10:00 PM America/New_York.
Valid through 2/28/2026 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202602280900;;369259
open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri feb 27 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 29.2 inch clipper low moving through northern ontario tonight is
sending a 29.4 inch trough over the lake tonight. the low deepens
further to 29.0 inches near james bay by saturday morning, while
high pressure builds o 30.6 inches over the canadian prairies. this
brings ridging of at least 30.4 inches over the lake by saturday
afternoon, building to 30.6 inches sunday before a weak 30.1 inch
trough slides through monday.
lsz264-280900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est fri feb 27 2026
...storm warning in effect until 7 am est saturday...
...heavy freezing spray warning in effect through saturday
afternoon...
.rest of tonight...northwest storm force winds to 55 knots
diminishing to gales to 40 knots late. heavy freezing spray. a
slight chance of snow showers after midnight. waves 12 to 17 feet
occasionally to 21 feet subsiding to 7 to 10 feet occasionally to
13 feet.
.saturday...northwest gales to 35 knots diminishing to 10 to
20 knots. heavy freezing spray in the morning. waves subsiding to
1 to 3 feet.
.saturday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots late. waves subsiding to calm to 2 feet, then
building to 1 to 3 feet.
.sunday...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet.
.sunday night...west winds 5 to 15 knots backing southwest after
midnight. waves calm to 2 feet.
.monday...southwest winds 10 to 20 knots. waves building to 5 to
8 feet occasionally to 10 feet.
.monday night...southwest gales to 35 knots. waves building to
5 to 9 feet occasionally to 11 feet.
.tuesday...southwest gales to 35 knots veering west. waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet.
.wednesday...northwest winds 20 to 30 knots veering east. waves
subsiding to 1 to 3 feet, then building to 7 to 10 feet
occasionally to 13 feet.
note, wave height forecasts are for ice free areas.
$$
(16/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 2/27/2026 10:00 PM America/New_York.
Valid through 2/28/2026 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202602280900;;369260
open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri feb 27 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 29.2 inch clipper low moving through northern ontario tonight is
sending a 29.4 inch trough over the lake tonight. the low deepens
further to 29.0 inches near james bay by saturday morning, while
high pressure builds o 30.6 inches over the canadian prairies. this
brings ridging of at least 30.4 inches over the lake by saturday
afternoon, building to 30.6 inches sunday before a weak 30.1 inch
trough slides through monday.
lsz265-280900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est fri feb 27 2026
...storm warning in effect until 10 am est saturday...
...heavy freezing spray warning in effect through saturday
afternoon...
.rest of tonight...northwest storm force winds to 50 knots
diminishing to gales to 45 knots by midnight. a slight chance of
snow showers late in the evening. waves 6 to 10 feet occasionally
to 13 feet.
.saturday...northwest gales to 35 knots diminishing to 15 to
25 knots. waves subsiding to 1 to 3 feet.
.saturday night...northwest winds 15 to 25 knots. waves subsiding
to calm to 2 feet, then building to 1 to 3 feet.
.sunday...northwest winds 10 to 20 knots backing west in the
afternoon. waves subsiding to calm to 2 feet.
.sunday night...west winds 10 to 20 knots backing southwest after
midnight. waves calm to 2 feet.
.monday...southwest winds 15 to 25 knots backing south in the
afternoon. waves building to 1 to 3 feet.
.monday night...south winds 20 to 30 knots becoming southwest
gales to 35 knots after midnight. waves 1 to 3 feet.
.tuesday...southwest winds 20 to 30 knots becoming west gales to
35 knots. waves subsiding to calm to 2 feet.
.wednesday...west winds 20 to 30 knots backing south. waves
building to 6 to 9 feet occasionally to 11 feet.
note, wave height forecasts are for ice free areas.
$$
(17/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 2/27/2026 10:00 PM America/New_York.
Valid through 2/28/2026 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202602280900;;369261
open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri feb 27 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 29.2 inch clipper low moving through northern ontario tonight is
sending a 29.4 inch trough over the lake tonight. the low deepens
further to 29.0 inches near james bay by saturday morning, while
high pressure builds o 30.6 inches over the canadian prairies. this
brings ridging of at least 30.4 inches over the lake by saturday
afternoon, building to 30.6 inches sunday before a weak 30.1 inch
trough slides through monday.
lsz266-280900-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1000 pm est fri feb 27 2026
...storm warning in effect until 10 am est saturday...
...heavy freezing spray warning in effect through late saturday
night...
.rest of tonight...northwest storm force winds to 55 knots
diminishing to gales to 45 knots late. heavy freezing spray. a
chance of snow showers. waves 15 to 20 feet occasionally to
25 feet building to 17 to 22 feet occasionally to 28 feet, then
subsiding to 12 to 17 feet occasionally to 21 feet.
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots. heavy freezing spray. a slight chance of snow showers.
waves subsiding to 3 to 6 feet occasionally to 8 feet.
.saturday night...northwest winds 20 to 30 knots becoming north
15 to 25 knots by midnight, then backing northwest late. heavy
freezing spray in the evening. a slight chance of snow showers
after midnight. waves subsiding to 2 to 4 feet.
.sunday...northwest winds 10 to 20 knots backing west in the
afternoon. a slight chance of snow showers in the morning. waves
subsiding to 1 to 3 feet.
.sunday night...west winds 10 to 20 knots backing southwest after
midnight. waves subsiding to calm to 2 feet, then building to
2 to 4 feet.
.monday...south winds 15 to 25 knots. waves building to 6 to
9 feet occasionally to 11 feet.
.monday night...south gales to 35 knots veering southwest after
midnight. waves subsiding to 5 to 8 feet occasionally to 10 feet.
.tuesday...southwest gales to 35 knots veering west. waves
subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet.
.wednesday...west winds 20 to 30 knots backing south. waves
subsiding to 1 to 3 feet, then building to 6 to 9 feet
occasionally to 11 feet.
note, wave height forecasts are for ice free areas.
$$
(18/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 2/27/2026 10:00 PM America/New_York.
Valid through 2/28/2026 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202602280900;;369262
open lake forecast for lake superior
national weather service marquette mi
1000 pm est fri feb 27 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 29.2 inch clipper low moving through northern ontario tonight is
sending a 29.4 inch trough over the lake tonight. the low deepens
further to 29.0 inches near james bay by saturday morning, while
high pressure builds o 30.6 inches over the canadian prairies. this
brings ridging of at least 30.4 inches over the lake by saturday
afternoon, building to 30.6 inches sunday before a weak 30.1 inch
trough slides through monday.
lsz267-280900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est fri feb 27 2026
...storm warning in effect until 10 am est saturday...
...heavy freezing spray warning in effect through late saturday
night...
.rest of tonight...west storm force winds to 50 knots veering
northwest by midnight, then diminishing to gales to 40 knots
late. heavy freezing spray. a chance of snow showers. waves 15 to
20 feet occasionally to 25 feet building to 17 to 22 feet
occasionally to 28 feet, then subsiding to 12 to 17 feet
occasionally to 21 feet.
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots. heavy freezing spray. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet.
.saturday night...northwest winds 20 to 30 knots becoming north
15 to 25 knots by midnight, then diminishing to 10 to 20 knots
late. heavy freezing spray in the evening. waves subsiding to
1 to 3 feet.
.sunday...north winds 5 to 15 knots backing west in the
afternoon. waves subsiding to calm to 2 feet.
.sunday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 2 to 4 feet.
.monday...south winds 10 to 20 knots. waves building to 4 to
7 feet occasionally to 9 feet.
.monday night...south winds 20 to 30 knots. waves building to
5 to 8 feet occasionally to 10 feet.
.tuesday...southwest winds 20 to 30 knots becoming west gales to
35 knots. waves subsiding to 2 to 4 feet, then building to 3 to
6 feet occasionally to 8 feet.
.wednesday...west winds 20 to 30 knots backing south. waves
subsiding to 1 to 3 feet, then building to 4 to 7 feet
occasionally to 9 feet.
note, wave height forecasts are for ice free areas.
$$
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