fzus63 kdtx 240254
glflh 
expires:202602241100;;151529

open lake forecast for lake huron
national weather service detroit/pontiac mi
954 pm est mon feb 23 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...high pressure, 30.10 inches, tuesday morning drifts 
east as the next clipper system tracks across lake superior
tuesday. widespread snow and southerly flow gusting to 30 knots 
will be possible before the system departs late tuesday tonight.


lhz361-362-241100-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
954 pm est mon feb 23 2026

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

wave heights are for ice free areas.

$$

fzus63 kdtx 240254
glflh 
expires:202602241100;;151530

open lake forecast for lake huron
national weather service detroit/pontiac mi
954 pm est mon feb 23 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...high pressure, 30.10 inches, tuesday morning drifts 
east as the next clipper system tracks across lake superior
tuesday. widespread snow and southerly flow gusting to 30 knots 
will be possible before the system departs late tuesday tonight.


lhz363-462-241100-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
954 pm est mon feb 23 2026

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

wave heights are for ice free areas.

$$

fzus63 kmkx 240259
glflm 
expires:202602241015;;151738

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 pm cst mon feb 23 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...

light winds are expected overnight across lake michigan, as high 
pressure around 30.4 inches moves east across the region. 

south gales are then expected to develop late tuesday morning and
become southwest in the afternoon for all of lake michigan. a 
gale warning is in effect for this time period. the gales will 
develop as strengthening low pressure around 29.3 inches tracking 
from northern minnesota tuesday through the northern great lakes 
tuesday night. 

winds will shift more west northwest behind the low and 
associated cold front for tuesday night and wednesday. winds will 
remain brisk but under gale force. high pressure around 30.1
inches will then move into the region wednesday night into
thursday, bringing lighter winds. gusty south to southwest winds 
are then anticipated for friday.


lmz261-362-364-366-563-565-567-868-241015-
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-
859 pm cst mon feb 23 2026

sheboygan wi to pentwater mi north...

...gale warning in effect from tuesday morning through tuesday
afternoon...

.rest of tonight...north winds 10 to 15 kt veering to south 10 to
20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.tuesday...south winds to 30 kt increasing to gales to 40 kt late
in the morning, then becoming south gales to 40 kt early in the
afternoon becoming southwest gales to 35 kt late. chance of snow
showers in the morning, then snow showers in the afternoon. waves
4 to 6 ft occasionally to 8 ft building to 10 to 14 ft
occasionally to 18 ft. 
.tuesday night...west winds to 30 kt becoming northwest. freezing
spray overnight. waves 8 to 12 ft occasionally to 16 ft subsiding
to 6 to 9 ft occasionally to 12 ft. 
.wednesday...northwest winds to 30 kt diminishing to 15 to 25 kt.
freezing spray in the morning. waves 6 to 9 ft occasionally to
12 ft. 
.wednesday night...northwest winds 10 to 20 kt diminishing to
5 to 10 kt overnight. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.thursday...southwest winds 10 to 15 kt. waves 1 to 2 ft. 
.thursday night...southwest winds 10 to 20 kt increasing to 15 to
25 kt. waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft. 
.friday...southwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft building to 8 to 12 ft occasionally to 16 ft. 
.saturday...northwest winds to 30 kt becoming north 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmkx 240259
glflm 
expires:202602241015;;151739

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 pm cst mon feb 23 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...

light winds are expected overnight across lake michigan, as high 
pressure around 30.4 inches moves east across the region. 

south gales are then expected to develop late tuesday morning and
become southwest in the afternoon for all of lake michigan. a 
gale warning is in effect for this time period. the gales will 
develop as strengthening low pressure around 29.3 inches tracking 
from northern minnesota tuesday through the northern great lakes 
tuesday night. 

winds will shift more west northwest behind the low and 
associated cold front for tuesday night and wednesday. winds will 
remain brisk but under gale force. high pressure around 30.1
inches will then move into the region wednesday night into
thursday, bringing lighter winds. gusty south to southwest winds 
are then anticipated for friday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-241015-
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-
859 pm cst mon feb 23 2026

sheboygan wi to pentwater mi south...

...gale warning in effect from tuesday morning through tuesday
afternoon...

.rest of tonight...north winds 10 to 20 kt becoming northwest
10 to 15 kt late this evening, then backing to west after
midnight becoming south 10 to 20 kt late. waves 5 to 8 ft
occasionally to 10 ft subsiding to 2 to 4 ft. 
.tuesday...south winds to 30 kt becoming southwest gales to
40 kt. chance of snow showers in the afternoon. waves 4 to 6 ft
occasionally to 8 ft building to 10 to 14 ft occasionally to
18 ft. 
.tuesday night...southwest winds to 30 kt becoming northwest.
chance of rain and snow showers in the evening. waves 8 to 11 ft
occasionally to 14 ft subsiding to 7 to 10 ft occasionally to
13 ft. 
.wednesday...northwest winds to 30 kt diminishing to 15 to 25 kt.
freezing spray in the morning. waves 7 to 10 ft occasionally to
13 ft. 
.wednesday night...northwest winds 10 to 15 kt becoming north
5 to 10 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday...east winds 10 to 15 kt veering to southwest. waves
1 to 2 ft. 
.thursday night...southwest winds 10 to 20 kt. waves 2 to 4 ft
building to 4 to 6 ft occasionally to 8 ft. 
.friday...southwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft building to 8 to 12 ft occasionally to 16 ft. 
.saturday...north winds to 30 kt diminishing to 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 6 to 9 ft
occasionally to 12 ft.  

$$

fzus63 kmkx 232024
glflm 
expires:202602240415;;137917

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
224 pm cst mon feb 23 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...

brisk northerly winds will gradually diminish into this evening 
as high pressure of 30.7 inches over the upper mississippi river
valley moves across lake michigan tonight. light and variable 
winds are expected tonight as the high passes.

southerly gales are then expected to develop late tuesday
morning and last through the afternoon for all of lake michigan. 
a gale warning has been issued for this time period. the southerly
gales will develop as strengthening low pressure around 29.3 
inches tracks from northern minnesota on monday through the 
northern great lakes monday night. 

winds will shift more west northwest behind the low and 
associated cold front for tuesday night and wednesday. winds will
remain brisk but under gale force.


lmz080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-240415-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
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 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-
224 pm cst mon feb 23 2026

sturgeon bay wi to point betsie mi south...

...gale warning in effect from tuesday morning through tuesday
afternoon...

.tonight...north winds 15 to 25 kt diminishing to 10 to 20 kt 
through early evening becoming northwest 10 to 15 kt late this 
evening, backing to west then becoming south 10 to 15 kt late. 
freezing spray. scattered snow showers and slight chance of light 
freezing rain. waves 8 to 12 ft occasionally to 16 ft subsiding to
2 to 4 ft. 
.tuesday...south winds to 30 kt becoming southwest gales to
40 kt. snow showers likely in the afternoon. waves 4 to 6 ft
occasionally to 8 ft building to 10 to 14 ft occasionally to
18 ft. 
.tuesday night...west winds to 30 kt becoming northwest. chance
of snow showers in the evening. freezing spray overnight. waves
8 to 12 ft occasionally to 16 ft subsiding to 7 to 10 ft
occasionally to 13 ft. 
.wednesday...northwest winds to 30 kt diminishing to 15 to 25 kt.
freezing spray in the morning. waves 7 to 10 ft occasionally to
13 ft. 
.wednesday night...northwest winds 10 to 15 kt becoming north
5 to 10 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday...southeast winds 10 to 15 kt veering to southwest.
waves 1 to 2 ft. 
.thursday night...southwest winds 10 to 20 kt. waves 1 to 3 ft
building to 3 to 5 ft. 
.friday...southwest winds to 30 kt. waves 4 to 7 ft occasionally
to 9 ft building to 6 to 9 ft occasionally to 12 ft. 
.saturday...north winds to 30 kt diminishing to 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 232024
glflm 
expires:202602240415;;137916

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
224 pm cst mon feb 23 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...

brisk northerly winds will gradually diminish into this evening 
as high pressure of 30.7 inches over the upper mississippi river
valley moves across lake michigan tonight. light and variable 
winds are expected tonight as the high passes.

southerly gales are then expected to develop late tuesday
morning and last through the afternoon for all of lake michigan. 
a gale warning has been issued for this time period. the southerly
gales will develop as strengthening low pressure around 29.3 
inches tracks from northern minnesota on monday through the 
northern great lakes monday night. 

winds will shift more west northwest behind the low and 
associated cold front for tuesday night and wednesday. winds will
remain brisk but under gale force.


lmz261-362-364-563-240415-
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-
224 pm cst mon feb 23 2026

sturgeon bay wi to point betsie mi north...

...gale warning in effect from tuesday morning through tuesday
afternoon...

.tonight...north winds 15 to 25 kt diminishing to 10 to 20 kt
late, then diminishing to 5 to 10 kt late this evening becoming 
northeast veering to south 10 to 15 kt late. slight chance of 
light freezing rain. waves 4 to 6 ft occasionally to 8 ft 
subsiding to 1 to 3 ft. 
.tuesday...south winds to 30 kt increasing to gales to 40 kt late
in the morning, then becoming south gales to 40 kt early in the
afternoon becoming southwest gales to 35 kt late. chance of snow
showers in the morning, then snow showers in the afternoon. waves
4 to 6 ft occasionally to 8 ft building to 10 to 14 ft
occasionally to 18 ft. 
.tuesday night...southwest winds to 30 kt becoming west. waves
8 to 12 ft occasionally to 16 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.wednesday...northwest winds to 30 kt diminishing to 15 to 25 kt.
freezing spray in the morning. waves 4 to 7 ft occasionally to
9 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.wednesday night...northwest winds 10 to 20 kt diminishing to
5 to 10 kt overnight. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.thursday...southwest winds 10 to 15 kt. waves 1 to 2 ft. 
.thursday night...southwest winds 10 to 20 kt increasing to 15 to
25 kt. waves 1 to 3 ft building to 3 to 5 ft. 
.friday...southwest winds to 30 kt. waves 4 to 7 ft occasionally
to 9 ft building to 6 to 9 ft occasionally to 12 ft. 
.saturday...northwest winds to 30 kt diminishing to 15 to 25 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmqt 240301
glfls 
expires:202602240900;;151853

open lake forecast for lake superior
national weather service marquette mi
1000 pm est mon feb 23 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 30.5 inch high over northern ontario weakens to 30.0 inches by 
tuesday afternoon when it reaches quebec. a deepening 29.5 inch low 
then moves across the northern plains tonight, moving through the 
upper great lakes late tuesday through wednesday morning at 29.3 
inches. weak ridging then builds back over lake superior at around 
29.8 inches for wednesday night before the next clipper low 
approaches the lake from the northwest friday. expect troughing of 
29.4 inches to develop over lake superior friday evening before a 
30.6 inch high pressure over the canadian prairies brings 30.4 inch 
ridging over the lake by saturday evening.



lsz267-240900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est mon feb 23 2026

...heavy freezing spray warning in effect from 9 am est tuesday
through tuesday evening...
...gale warning in effect from 10 am est tuesday through tuesday
evening...

.rest of tonight...northeast winds 10 to 20 knots veering east by
midnight, then becoming southeast 15 to 25 knots late. a slight
chance of snow showers late in the evening. waves 1 to 3 feet
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.tuesday...southeast winds 20 to 30 knots increasing to gales to
40 knots by late morning, then becoming south gales to 35 knots
by mid afternoon. heavy freezing spray. a chance of snow showers
in the morning. snow showers in the afternoon. waves building to
8 to 12 feet occasionally to 15 feet. 
.tuesday night...south winds 20 to 30 knots becoming west 15 to
25 knots by midnight, then becoming northwest 20 to 30 knots
late. freezing spray. snow showers in the evening. a chance of
snow showers after midnight. waves subsiding to 4 to 7 feet
occasionally to 9 feet, then building to 7 to 10 feet
occasionally to 13 feet. 
.wednesday...northwest winds 20 to 30 knots. freezing spray. a
slight chance of snow showers. waves subsiding to 5 to 8 feet
occasionally to 10 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. freezing spray in the evening.
waves subsiding to 1 to 3 feet. 
.thursday...south winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.thursday night...south winds 15 to 25 knots veering southwest
after midnight. waves building to 3 to 6 feet occasionally to
8 feet. 
.friday...south gales to 40 knots becoming west storm force winds
to 55 knots. a chance of snow showers, possibly mixed with rain.
heavy freezing spray. waves building to 20 to 25 feet
occasionally to 31 feet. 
.saturday...northwest gales to 45 knots becoming north 20 to
30 knots. heavy freezing spray. waves subsiding to 7 to 10 feet
occasionally to 13 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 240301
glfls 
expires:202602240900;;151848

open lake forecast for lake superior
national weather service marquette mi
1000 pm est mon feb 23 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 30.5 inch high over northern ontario weakens to 30.0 inches by 
tuesday afternoon when it reaches quebec. a deepening 29.5 inch low 
then moves across the northern plains tonight, moving through the 
upper great lakes late tuesday through wednesday morning at 29.3 
inches. weak ridging then builds back over lake superior at around 
29.8 inches for wednesday night before the next clipper low 
approaches the lake from the northwest friday. expect troughing of 
29.4 inches to develop over lake superior friday evening before a 
30.6 inch high pressure over the canadian prairies brings 30.4 inch 
ridging over the lake by saturday evening.



lsz162-240900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est mon feb 23 2026 /900 pm cst mon feb 23 2026/

.rest of tonight...southeast winds 10 to 20 knots veering south
by midnight, then increasing to 15 to 25 knots late. a chance of
snow showers. waves calm to 2 feet building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...south winds 20 to 30 knots becoming southwest 15 to
25 knots by late morning, then veering west by mid afternoon.
freezing spray. snow showers in the morning. a chance of snow
showers in the afternoon. waves building to 4 to 8 feet
occasionally to 10 feet. 
.tuesday night...northwest winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible by
midnight. heavy freezing spray. waves subsiding to 4 to 7 feet
occasionally to 9 feet. 
.wednesday...northwest winds 15 to 25 knots becoming west 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...northwest winds 5 to 15 knots backing
southwest after midnight. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 10 to 20 knots. waves building
to 2 to 4 feet. 
.friday...southwest gales to 40 knots becoming northwest gales to
45 knots. heavy freezing spray. waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.saturday...northwest winds 20 to 30 knots becoming north 10 to
20 knots. waves subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 240301
glfls 
expires:202602240900;;151849

open lake forecast for lake superior
national weather service marquette mi
1000 pm est mon feb 23 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 30.5 inch high over northern ontario weakens to 30.0 inches by 
tuesday afternoon when it reaches quebec. a deepening 29.5 inch low 
then moves across the northern plains tonight, moving through the 
upper great lakes late tuesday through wednesday morning at 29.3 
inches. weak ridging then builds back over lake superior at around 
29.8 inches for wednesday night before the next clipper low 
approaches the lake from the northwest friday. expect troughing of 
29.4 inches to develop over lake superior friday evening before a 
30.6 inch high pressure over the canadian prairies brings 30.4 inch 
ridging over the lake by saturday evening.



lsz263-240900-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1000 pm est mon feb 23 2026

...heavy freezing spray warning in effect from 4 am est tuesday
through tuesday afternoon...

.rest of tonight...southeast winds 5 to 15 knots becoming south
10 to 20 knots by midnight, then increasing to 20 to 30 knots
late. a slight chance of snow showers. waves calm to 2 feet
building to 3 to 6 feet occasionally to 8 feet. 
.tuesday...south winds 20 to 30 knots becoming southwest 15 to
25 knots by late morning, then veering west by mid afternoon.
freezing spray. snow showers in the morning. a chance of snow
showers in the afternoon. waves building to 5 to 9 feet
occasionally to 11 feet. 
.tuesday night...northwest winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible by
midnight. a slight chance of snow showers in the evening. heavy
freezing spray. waves building to 6 to 10 feet occasionally to
13 feet. 
.wednesday...northwest winds 20 to 30 knots becoming west 10 to
20 knots in the afternoon. heavy freezing spray in the morning.
waves subsiding to 1 to 3 feet. 
.wednesday night...northwest winds 5 to 15 knots backing west
after midnight. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves building to 1 to 3 feet. 
.thursday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday...southwest gales to 40 knots becoming west gales to
45 knots. heavy freezing spray. waves building to 12 to 17 feet
occasionally to 21 feet, then subsiding to 10 to 14 feet
occasionally to 18 feet. 
.saturday...northwest gales to 35 knots becoming north 15 to
25 knots. heavy freezing spray. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 240301
glfls 
expires:202602240900;;151850

open lake forecast for lake superior
national weather service marquette mi
1000 pm est mon feb 23 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 30.5 inch high over northern ontario weakens to 30.0 inches by 
tuesday afternoon when it reaches quebec. a deepening 29.5 inch low 
then moves across the northern plains tonight, moving through the 
upper great lakes late tuesday through wednesday morning at 29.3 
inches. weak ridging then builds back over lake superior at around 
29.8 inches for wednesday night before the next clipper low 
approaches the lake from the northwest friday. expect troughing of 
29.4 inches to develop over lake superior friday evening before a 
30.6 inch high pressure over the canadian prairies brings 30.4 inch 
ridging over the lake by saturday evening.



lsz264-240900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est mon feb 23 2026

...heavy freezing spray warning in effect from 4 am est tuesday
through tuesday afternoon...
...gale warning in effect from 7 am est tuesday through tuesday
afternoon...

.rest of tonight...southeast winds 5 to 15 knots becoming south
10 to 20 knots by midnight, then increasing to 20 to 30 knots
late. a slight chance of snow showers. waves calm to 2 feet
building to 4 to 7 feet occasionally to 9 feet. 
.tuesday...south gales to 35 knots becoming southwest 15 to
25 knots by mid afternoon. heavy freezing spray. snow showers.
waves building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 6 to 9 feet occasionally to 11 feet. 
.tuesday night...northwest winds 15 to 25 knots increasing to
gales to 35 knots by midnight, then diminishing to 20 to 30 knots
late. heavy freezing spray. a slight chance of snow showers.
waves building to 6 to 10 feet occasionally to 13 feet. 
.wednesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. heavy freezing spray in the morning.
waves subsiding to 2 to 4 feet. 
.wednesday night...northwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots. waves building to 1 to
3 feet. 
.thursday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday...southwest gales to 45 knots becoming northwest storm
force winds to 55 knots. heavy freezing spray. waves building to
15 to 20 feet occasionally to 25 feet. 
.saturday...northwest gales to 45 knots becoming north 20 to
30 knots. heavy freezing spray. waves subsiding to 5 to 8 feet
occasionally to 10 feet, then building to 6 to 9 feet
occasionally to 11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 240301
glfls 
expires:202602240900;;151851

open lake forecast for lake superior
national weather service marquette mi
1000 pm est mon feb 23 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 30.5 inch high over northern ontario weakens to 30.0 inches by 
tuesday afternoon when it reaches quebec. a deepening 29.5 inch low 
then moves across the northern plains tonight, moving through the 
upper great lakes late tuesday through wednesday morning at 29.3 
inches. weak ridging then builds back over lake superior at around 
29.8 inches for wednesday night before the next clipper low 
approaches the lake from the northwest friday. expect troughing of 
29.4 inches to develop over lake superior friday evening before a 
30.6 inch high pressure over the canadian prairies brings 30.4 inch 
ridging over the lake by saturday evening.



lsz265-240900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est mon feb 23 2026

...heavy freezing spray warning in effect from 6 am est tuesday
through tuesday afternoon...
...gale warning in effect from 7 am est tuesday through tuesday
afternoon...

.rest of tonight...east winds 5 to 15 knots veering south by
midnight, then increasing to 20 to 30 knots late. a slight chance
of snow showers late in the evening. waves 1 to 3 feet subsiding
to calm to 2 feet, then building to 3 to 6 feet occasionally to
8 feet. 
.tuesday...south gales to 35 knots becoming southwest 15 to
25 knots by mid afternoon. heavy freezing spray. snow showers.
waves building to 6 to 9 feet occasionally to 11 feet, then
subsiding to 2 to 4 feet. 
.tuesday night...west winds 20 to 30 knots becoming northwest
gales to 35 knots by midnight. a chance of snow showers. heavy
freezing spray after midnight. waves building to 5 to 8 feet
occasionally to 10 feet. 
.wednesday...northwest gales to 35 knots diminishing to 15 to
25 knots in the afternoon. heavy freezing spray in the morning. a
slight chance of snow showers in the morning. waves subsiding to
2 to 4 feet. 
.wednesday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots backing south in the
afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 1 to 3 feet. 
.friday...southwest gales to 40 knots becoming west storm force
winds to 55 knots. heavy freezing spray. waves building to 10 to
14 feet occasionally to 18 feet. 
.saturday...northwest gales to 45 knots diminishing to 20 to
30 knots. heavy freezing spray. waves subsiding to 4 to 7 feet
occasionally to 9 feet, then building to 6 to 9 feet occasionally
to 11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 240301
glfls 
expires:202602240900;;151852

open lake forecast for lake superior
national weather service marquette mi
1000 pm est mon feb 23 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 30.5 inch high over northern ontario weakens to 30.0 inches by 
tuesday afternoon when it reaches quebec. a deepening 29.5 inch low 
then moves across the northern plains tonight, moving through the 
upper great lakes late tuesday through wednesday morning at 29.3 
inches. weak ridging then builds back over lake superior at around 
29.8 inches for wednesday night before the next clipper low 
approaches the lake from the northwest friday. expect troughing of 
29.4 inches to develop over lake superior friday evening before a 
30.6 inch high pressure over the canadian prairies brings 30.4 inch 
ridging over the lake by saturday evening.



lsz266-240900-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1000 pm est mon feb 23 2026

...heavy freezing spray warning in effect from 6 am est tuesday
through tuesday afternoon...
...gale warning in effect from 7 am est tuesday through tuesday
evening...

.rest of tonight...northeast winds 10 to 20 knots veering
southeast by midnight, then becoming south 20 to 30 knots late. a
slight chance of snow showers late in the evening. waves 2 to
4 feet subsiding to calm to 2 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...south gales to 35 knots. heavy freezing spray. a
chance of snow showers in the morning. snow showers in the
afternoon. waves building to 11 to 15 feet occasionally to
19 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. 
.tuesday night...west winds 15 to 25 knots becoming northwest
gales to 35 knots by midnight. freezing spray. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet,
then building to 8 to 11 feet occasionally to 14 feet. 
.wednesday...northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. freezing spray. a chance of snow
showers. waves building to 9 to 12 feet occasionally to 15 feet,
then subsiding to 5 to 8 feet occasionally to 10 feet. 
.wednesday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. freezing spray in the evening.
waves subsiding to 1 to 3 feet. 
.thursday...southwest winds 10 to 20 knots becoming south 15 to
25 knots in the afternoon. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.thursday night...south winds 15 to 25 knots becoming southwest
20 to 30 knots after midnight. waves building to 4 to 7 feet
occasionally to 9 feet. 
.friday...south gales to 45 knots becoming west storm force winds
to 60 knots. heavy freezing spray. waves building to 20 to
25 feet occasionally to 31 feet. 
.saturday...northwest gales to 45 knots. heavy freezing spray.
waves subsiding to 8 to 11 feet occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$