fzus63 kdtx 280829
glflh 
expires:202602281630;;382053

open lake forecast for lake huron
national weather service detroit/pontiac mi
329 am est sat feb 28 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...northwest gales and heavy freezing spray subside this
morning, leading to lighter northwest winds today and tonight. 
high pressure, 30.70 inches, then builds in for the latter half of
the weekend. 


lhz361-362-281630-
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-
329 am est sat feb 28 2026

...gale warning in effect until 9 am est this morning...
...heavy freezing spray warning in effect until 9 am est this
morning...

.today...northwest winds to 30 knots with gusts to 35 knot gales
decreasing to 15 to 20 knots. freezing spray. waves 10 to 14 feet
subsiding to 4 to 6 feet late in the afternoon. waves
occasionally around 18 feet. 
.tonight...northwest winds 10 to 15 knots becoming north 15 to
20 knots by midnight...then decreasing to 10 to 15 knots early in
the morning. waves 3 to 5 feet. 
.sunday...north winds 10 to 15 knots. waves 3 to 5 feet. 
.sunday night...west winds 5 to 10 knots. waves 1 to 3 feet. 
.monday...southwest winds 5 to 10 knots increasing to 10 to
15 knots late in the morning...then becoming south 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 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then backing to the
east early in the evening becoming east 5 to 10 knots by
midnight. a chance of snow. waves 4 to 6 feet subsiding to 1 to
3 feet. waves occasionally around 8 feet. 
.wednesday...west winds 10 to 15 knots backing to the southeast.
waves 1 to 3 feet building to 3 to 5 feet by midnight. 

wave heights are for ice free areas.

$$

fzus63 kdtx 280829
glflh 
expires:202602281630;;382054

open lake forecast for lake huron
national weather service detroit/pontiac mi
329 am est sat feb 28 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...northwest gales and heavy freezing spray subside this
morning, leading to lighter northwest winds today and tonight. 
high pressure, 30.70 inches, then builds in for the latter half of
the weekend. 


lhz363-281630-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
329 am est sat feb 28 2026

.today...northwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots in the afternoon. freezing
spray in the morning. waves 8 to 12 feet subsiding to 4 to 6 feet
late in the afternoon. waves occasionally around 15 feet. 
.tonight...north winds 10 to 15 knots increasing to 15 to
20 knots after midnight. a chance of snow after midnight. waves
3 to 5 feet. 
.sunday...north winds 15 to 20 knots decreasing to 10 to 15 knots
in the late morning and afternoon. a chance of snow. waves 3 to
5 feet. 
.sunday night...north winds 5 to 10 knots 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 afternoon decreasing to 10 to 15 knots late in the
evening. waves 2 feet or less building to 3 to 5 feet. 
.tuesday...south winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then backing to the
northeast early in the evening becoming northeast 5 to 10 knots
by midnight. a chance of snow. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.wednesday...north winds 10 to 15 knots becoming east 5 to
10 knots in the late morning and early afternoon...then veering
to the southeast early in the evening increasing to 10 to
15 knots by midnight. a chance of rain by midnight. waves 1 to
3 feet building to 2 to 4 feet by midnight. 

wave heights are for ice free areas.

$$

fzus63 kdtx 280829
glflh 
expires:202602281630;;382055

open lake forecast for lake huron
national weather service detroit/pontiac mi
329 am est sat feb 28 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...northwest gales and heavy freezing spray subside this
morning, leading to lighter northwest winds today and tonight. 
high pressure, 30.70 inches, then builds in for the latter half of
the weekend. 


lhz462>464-281630-
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-
329 am est sat feb 28 2026

.today...northwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon...then becoming northwest 10 to
15 knots late in the afternoon. waves 2 to 4 feet. 
.tonight...north winds 10 to 15 knots. a chance of snow. waves
2 to 4 feet subsiding to 1 to 3 feet by midnight...then building
to 3 to 5 feet early in the morning. 
.sunday...north winds 10 to 15 knots. a chance of snow. waves
3 to 5 feet. 
.sunday night...north winds 5 to 10 knots early in the evening
becoming light and variable...then becoming northeast 5 to
10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.monday...south winds 5 to 10 knots increasing to 10 to 15 knots.
waves 1 to 3 feet. 
.tuesday...south winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then backing to the
northeast early in the evening backing to the northeast 5 to
10 knots by midnight. snow likely. rain likely until early
evening...then a chance of rain by midnight. waves 2 feet or
less. 
.wednesday...north winds 5 to 10 knots veering to the northeast
in the late morning and early afternoon...then veering to the
southeast early in the evening increasing to 10 to 15 knots by
midnight. a chance of rain by midnight. waves 1 to 3 feet. 

wave heights are for ice free areas.

$$

fzus63 kmkx 280847
glflm 
expires:202602281630;;382626

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
247 am cst sat feb 28 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...

gusty northwest winds early this morning will become north to 
northeast and moderate today into tonight, as strong high pressure
around 30.7 inches builds into the upper midwest. this high will
gradually slide east sunday into monday. expect lighter winds 
sunday into sunday night, before becoming south to southeast on 
monday into monday night. winds may then become northeast to east 
toward the middle of next week.


lmz261-362-364-366-563-565-567-868-281630-
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-
247 am cst sat feb 28 2026

sheboygan wi to pentwater mi north...

.today...northwest winds 15 to 25 kt becoming north 10 to 15 kt.
chance of snow this afternoon. waves 4 to 7 ft occasionally to
9 ft subsiding to 2 to 4 ft. 
.tonight...north winds 10 to 15 kt increasing to 10 to 20 kt.
chance of snow in the evening, then slight chance of snow
overnight. waves 3 to 5 ft. 
.sunday...north winds 10 to 20 kt diminishing to 10 to 15 kt late
in the morning, then becoming northwest early in the afternoon
diminishing to 5 to 10 kt late. waves 3 to 5 ft subsiding to 2 to
4 ft. 
.sunday night...west winds 5 to 10 kt becoming southwest. waves
1 to 2 ft. 
.monday...south winds 15 to 25 kt increasing to 30 kt. waves 2 to
4 ft building to 4 to 7 ft occasionally to 9 ft.
.monday night...south winds 15 to 25 kt. chance of snow. waves
4 to 7 ft occasionally to 9 ft. 
.tuesday...south winds 10 to 20 kt backing to northeast. chance
of snow. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.wednesday...southeast winds 10 to 15 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 280847
glflm 
expires:202602281630;;382627

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
247 am cst sat feb 28 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...

gusty northwest winds early this morning will become north to 
northeast and moderate today into tonight, as strong high pressure
around 30.7 inches builds into the upper midwest. this high will
gradually slide east sunday into monday. expect lighter winds 
sunday into sunday night, before becoming south to southeast on 
monday into monday night. winds may then become northeast to east 
toward the middle of next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-281630-
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-
247 am cst sat feb 28 2026

sheboygan wi to pentwater mi south...

.today...north winds 10 to 20 kt becoming northeast. chance of
snow this afternoon. waves 5 to 8 ft occasionally to 10 ft
subsiding to 3 to 5 ft. 
.tonight...northeast winds 10 to 20 kt becoming north. chance of
snow in the evening, then slight chance of snow overnight. 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 2 to 4 ft. 
.sunday night...northeast winds 5 to 10 kt becoming east. waves
2 to 4 ft subsiding to 1 to 3 ft. 
.monday...southeast winds 10 to 20 kt becoming south. waves 2 to
4 ft building to 4 to 6 ft occasionally to 8 ft. 
.monday night...southeast winds 10 to 20 kt. chance of rain and
snow. waves 4 to 6 ft occasionally to 8 ft. 
.tuesday...southeast winds 10 to 20 kt becoming northeast 10 to
15 kt. rain, snow and light freezing rain likely. waves 2 to
4 ft. 
.wednesday...east winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 2 to 4 ft.  

$$

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.  

$$

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.  

$$

fzus63 kmqt 280900
glfls 
expires:202602282100;;382940

open lake forecast for lake superior
national weather service marquette mi
400 am est sat feb 28 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 29.1 inch low near southern james bay early this morning continues 
departing northeast today over northern quebec. meanwhile, 30.6 inch 
high pressure over the canadian prairie builds in from the 
northwest. this high becomes centered over upper michigan sunday 
afternoon, then reaches new england for monday. a weak 30.1 inch 
trough slides through on tuesday. a 30.4 inch high moving over 
northern ontario on wednesday extends 30.2 inch ridging over the 
lake.



lsz162-282100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est sat feb 28 2026 /300 am cst sat feb 28 2026/

...heavy freezing spray warning in effect until 7 am est /6 am
cst/ this morning...

.early this morning...northwest winds 15 to 25 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.today...northwest winds 10 to 20 knots. waves subsiding to calm
to 2 feet. 
.tonight...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. 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 6 feet
occasionally to 8 feet. 
.monday night...southwest gales to 35 knots. waves subsiding to
calm to 2 feet. 
.tuesday...southwest winds 20 to 30 knots becoming west 15 to
25 knots. waves calm to 2 feet. 
.wednesday...west winds 10 to 20 knots becoming east 15 to
25 knots. waves building to 3 to 5 feet occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 280900
glfls 
expires:202602282100;;382941

open lake forecast for lake superior
national weather service marquette mi
400 am est sat feb 28 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 29.1 inch low near southern james bay early this morning continues 
departing northeast today over northern quebec. meanwhile, 30.6 inch 
high pressure over the canadian prairie builds in from the 
northwest. this high becomes centered over upper michigan sunday 
afternoon, then reaches new england for monday. a weak 30.1 inch 
trough slides through on tuesday. a 30.4 inch high moving over 
northern ontario on wednesday extends 30.2 inch ridging over the 
lake.



lsz263-282100-
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-
400 am est sat feb 28 2026

...heavy freezing spray warning in effect until 10 am est this
morning...

.early this morning...northwest winds 15 to 25 knots. heavy
freezing spray. waves 3 to 6 feet occasionally to 8 feet. 
.today...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots veering north by
midnight, then backing northwest late. a slight chance of snow
showers after midnight. waves calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots backing west. 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
6 feet occasionally to 8 feet. 
.monday night...southwest gales to 35 knots. waves subsiding to
1 to 3 feet. 
.tuesday...southwest winds 20 to 30 knots veering west. waves
subsiding to calm to 2 feet. 
.wednesday...west winds 20 to 30 knots backing east. waves
building to 3 to 5 feet occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 280900
glfls 
expires:202602282100;;382942

open lake forecast for lake superior
national weather service marquette mi
400 am est sat feb 28 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 29.1 inch low near southern james bay early this morning continues 
departing northeast today over northern quebec. meanwhile, 30.6 inch 
high pressure over the canadian prairie builds in from the 
northwest. this high becomes centered over upper michigan sunday 
afternoon, then reaches new england for monday. a weak 30.1 inch 
trough slides through on tuesday. a 30.4 inch high moving over 
northern ontario on wednesday extends 30.2 inch ridging over the 
lake.



lsz264-282100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am est sat feb 28 2026

...gale warning in effect until 5 am est early this morning...
...heavy freezing spray warning in effect until 1 pm est this
afternoon...

.early this morning...northwest winds to 30 knots with a few gale
force gusts to 35 knots possible. heavy freezing spray. a slight
chance of snow showers. waves 8 to 11 feet occasionally to
14 feet subsiding to 7 to 10 feet occasionally to 13 feet. 
.today...northwest winds to 30 knots with a few gale force gusts
to 35 knots possible diminishing to 10 to 20 knots. heavy
freezing spray in the morning. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. a slight chance of snow showers. waves subsiding
to 1 to 3 feet. 
.sunday...northwest winds 5 to 15 knots backing west. waves
subsiding to calm to 2 feet. 
.sunday night...west winds 5 to 15 knots backing southwest after
midnight. waves building to 1 to 3 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 subsiding to
3 to 5 feet occasionally to 7 feet. 
.tuesday...southwest gales to 35 knots veering west. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.wednesday...northwest winds 20 to 30 knots veering east. waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 280900
glfls 
expires:202602282100;;382943

open lake forecast for lake superior
national weather service marquette mi
400 am est sat feb 28 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 29.1 inch low near southern james bay early this morning continues 
departing northeast today over northern quebec. meanwhile, 30.6 inch 
high pressure over the canadian prairie builds in from the 
northwest. this high becomes centered over upper michigan sunday 
afternoon, then reaches new england for monday. a weak 30.1 inch 
trough slides through on tuesday. a 30.4 inch high moving over 
northern ontario on wednesday extends 30.2 inch ridging over the 
lake.



lsz265-282100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am est sat feb 28 2026

...gale warning in effect until 5 am est early this morning...
...heavy freezing spray warning in effect until 4 pm est this
afternoon...

.early this morning...northwest winds to 30 knots with a few gale
force gusts to 35 knots possible. a slight chance of snow
showers. waves 6 to 10 feet occasionally to 13 feet. 
.today...northwest winds to 30 knots with a few gale force gusts
to 35 knots possible diminishing to 15 to 25 knots. a slight
chance of snow showers in the morning. waves subsiding to 2 to
4 feet. 
.tonight...northwest winds 15 to 25 knots. a slight chance of
snow showers. waves subsiding to 1 to 3 feet. 
.sunday...northwest winds 10 to 20 knots backing west. 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 subsiding to calm to
2 feet. 
.tuesday...southwest winds 20 to 30 knots becoming west gales to
35 knots. waves calm to 2 feet. 
.wednesday...west winds 20 to 30 knots backing south. waves
building to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 280900
glfls 
expires:202602282100;;382944

open lake forecast for lake superior
national weather service marquette mi
400 am est sat feb 28 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 29.1 inch low near southern james bay early this morning continues 
departing northeast today over northern quebec. meanwhile, 30.6 inch 
high pressure over the canadian prairie builds in from the 
northwest. this high becomes centered over upper michigan sunday 
afternoon, then reaches new england for monday. a weak 30.1 inch 
trough slides through on tuesday. a 30.4 inch high moving over 
northern ontario on wednesday extends 30.2 inch ridging over the 
lake.



lsz266-282100-
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-
400 am est sat feb 28 2026

...gale warning in effect until 7 am est this morning...
...heavy freezing spray warning in effect through this evening...

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 280900
glfls 
expires:202602282100;;382945

open lake forecast for lake superior
national weather service marquette mi
400 am est sat feb 28 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 29.1 inch low near southern james bay early this morning continues 
departing northeast today over northern quebec. meanwhile, 30.6 inch 
high pressure over the canadian prairie builds in from the 
northwest. this high becomes centered over upper michigan sunday 
afternoon, then reaches new england for monday. a weak 30.1 inch 
trough slides through on tuesday. a 30.4 inch high moving over 
northern ontario on wednesday extends 30.2 inch ridging over the 
lake.



lsz267-282100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am est sat feb 28 2026

...gale warning in effect until 7 am est this morning...
...heavy freezing spray warning in effect through this evening...

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

note, wave height forecasts are for ice free areas.

$$