fzus63 kdtx 052013
glflh 
expires:202603060415;;685980

open lake forecast for lake huron
national weather service detroit/pontiac mi
313 pm est thu mar 5 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...weak low pressure, 30.00 inches, lifts across the ohio
valley and tracks along the southern shore of lake erie today.
this brings showers and areas of fog to the southern waterways,
with light ene flow. a stronger low, 29.40 inches, will move into
the northern great lakes by saturday providing an uptick in winds
and showers out ahead of it. potential exists for some
thunderstorms. the system's cold front should pass through the
central great lakes saturday afternoon/evening leading to drier
conditions for the rest of the weekend.


lhz361-362-060415-
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-
313 pm est thu mar 5 2026

.tonight...east winds 15 to 20 knots decreasing to 10 to 15 knots
in the late evening and overnight. a chance of snow showers after
midnight. patchy fog after midnight. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.friday...southeast winds 10 to 15 knots. a chance of snow
showers in the morning. patchy fog in the morning. a chance of
drizzle and freezing drizzle. waves 2 to 4 feet. 
.friday night...east winds 15 to 20 knots becoming southeast
10 to 15 knots by midnight...then veering to the south after
midnight. rain in the evening...then rain and a chance of
thunderstorms after midnight. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.saturday...southwest winds 15 to 20 knots. gusts to 30 knots
early in the afternoon. rain likely in the morning. waves 5 to
7 feet. waves occasionally around 10 feet. 
.saturday night...west winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots by midnight...then backing
to the southwest after midnight. waves 5 to 7 feet subsiding to
2 to 4 feet after midnight. waves occasionally around 10 feet. 
.sunday...southwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots. waves 5 to 7 feet
building to 6 to 9 feet late in the evening. waves occasionally
around 12 feet. 
.monday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
early afternoon...then decreasing to 10 to 15 knots early in the
evening veering to the northwest by midnight. waves 6 to 9 feet
subsiding to 3 to 5 feet by midnight. waves occasionally around
12 feet. 
.tuesday...north winds 10 to 15 knots becoming east 15 to
20 knots until early evening...then increasing to 20 to 25 knots
by midnight. a chance of rain and snow early in the evening. rain
and snow by midnight. waves 5 to 7 feet building to 8 to 12 feet
by midnight. waves occasionally around 15 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 052013
glflh 
expires:202603060415;;685981

open lake forecast for lake huron
national weather service detroit/pontiac mi
313 pm est thu mar 5 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...weak low pressure, 30.00 inches, lifts across the ohio
valley and tracks along the southern shore of lake erie today.
this brings showers and areas of fog to the southern waterways,
with light ene flow. a stronger low, 29.40 inches, will move into
the northern great lakes by saturday providing an uptick in winds
and showers out ahead of it. potential exists for some
thunderstorms. the system's cold front should pass through the
central great lakes saturday afternoon/evening leading to drier
conditions for the rest of the weekend.


lhz363-462-060415-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
313 pm est thu mar 5 2026

.tonight...northeast winds 10 to 15 knots becoming east 5 to
10 knots in the late evening and overnight. areas of fog after
midnight. 
.friday...southeast winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. a chance of snow showers in the
morning. a chance of drizzle...freezing drizzle and patchy fog in
the morning. 
.friday night...southeast winds 15 to 20 knots becoming south
10 to 15 knots by midnight...then increasing to 15 to 20 knots
after midnight. rain and a chance of thunderstorms in the
evening...then rain likely and a chance of thunderstorms after
midnight. 
.saturday...southwest winds 15 to 20 knots. gusts to 30 knots in
the late morning and early afternoon. rain likely in the morning.
.saturday night...west winds 15 to 20 knots decreasing to 5 to
10 knots. 
.sunday...southwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots. 
.monday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
early afternoon...then decreasing to 10 to 15 knots early in the
evening veering to the southwest 10 to 15 knots by midnight. 
.tuesday...north winds 15 to 20 knots becoming east 10 to
15 knots in the late morning and early afternoon...then
increasing to 15 to 20 knots early in the evening becoming south
20 to 25 knots by midnight. rain.

waves omitted due to ice coverage.

$$

fzus63 kdtx 051452
glflh 
expires:202603052300;;671031

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am est thu mar 5 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...weak low pressure, 30.00 inches, lifts across the ohio
valley and tracks along the southern shore of lake erie today.
this brings showers and areas of fog to the southern waterways,
with light ene flow. a stronger low, 29.40 inches, will move into
the northern great lakes by saturday providing an uptick in winds
and showers out ahead of it. potential exists for some
thunderstorms. the system's cold front should pass through the
central great lakes saturday afternoon/evening leading to drier
conditions for the rest of the weekend.


lhz363-462>464-052300-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
952 am est thu mar 5 2026

.rest of today...northeast winds 10 to 15 knots. areas of fog
late in the morning. scattered showers in the afternoon. 
.tonight...northeast winds 10 to 15 knots becoming east 5 to
10 knots after midnight. scattered showers in the evening. areas
of fog after midnight. 
.friday...east winds 5 to 10 knots veering to the southeast in
the late morning and early afternoon...then becoming south 10 to
15 knots early in the afternoon. patchy fog in the morning. 
.friday night...south winds 15 to 20 knots. rain likely and a
chance of thunderstorms in the evening...then rain likely after
midnight. 
.saturday...south winds 15 to 20 knots veering to the west late
in the afternoon...then becoming northwest 10 to 15 knots late in
the evening. rain likely in the morning...then a chance of rain
late in the morning. 
.sunday...southwest winds 10 to 15 knots increasing to 20 to
25 knots with gusts to around 30 knots. 
.monday...southwest winds 20 to 25 knots decreasing to 15 to
20 knots. 

waves omitted due to ice coverage.

$$

fzus63 kmkx 052135
glflm 
expires:202603060430;;689171

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
335 pm cst thu mar 5 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...

east to northeast winds will continue through tonight as weak low
pressure around 29.9 inches passes across the northern ohio river
valley. marine dense fog with visibilities of 1 nautical mile or 
less continues across the southern half of the open waters 
through tonight. it is possible that fog could start to expand 
further north this evening into tonight as southerly winds develop
across the lake. fog may persist all the way through saturday
morning until a cold front scours it out.

low pressure around 29.5 inches will develop in the central 
plains tonight and track toward the upper mississippi river 
valley by friday evening. this low will move near or just north of
lake michigan later friday night into saturday morning, quickly 
moving into quebec by saturday evening. 

as the low passes to the north, breezy southerly winds will 
develop for friday afternoon and night, then shifting west to
northwest on saturday with the passage of the cold front. 
widespread rain and embedded thunderstorms will accompany the 
approaching and passing low friday into friday night. breezy 
southwest winds are then forecast for sunday into monday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-060430-
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-
335 pm cst thu mar 5 2026

sheboygan wi to pentwater mi south...

...dense fog advisory in effect until 6 am cst friday...

.tonight...east winds 10 to 15 kt becoming southeast. widespread 
dense fog. waves 1 to 2 ft. 
.friday...southeast winds 10 to 15 kt becoming south to 30 kt.
areas of dense fog. chance of rain in the morning, then rain
likely with a chance of thunderstorms in the afternoon. waves
1 to 2 ft building to 4 to 6 ft occasionally to 8 ft.
.friday night...south winds 15 to 25 kt becoming southwest to
30 kt. areas of dense fog in the evening. chance of rain and
thunderstorms in the evening, then rain with a chance of
thunderstorms overnight. waves 4 to 6 ft occasionally to 8 ft
building to 6 to 9 ft occasionally to 12 ft. 
.saturday...southwest winds to 30 kt becoming west 15 to 25 kt.
rain likely in the morning. waves 6 to 9 ft occasionally to
12 ft. 
.saturday night...northwest winds 10 to 15 kt becoming west 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.sunday...southwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft. 
.sunday night...southwest winds to 30 kt. waves 7 to 10 ft
occasionally to 13 ft. 
.monday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.tuesday...southeast winds 15 to 25 kt becoming south. rain
likely. waves 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 052135
glflm 
expires:202603060430;;689170

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
335 pm cst thu mar 5 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...

east to northeast winds will continue through tonight as weak low
pressure around 29.9 inches passes across the northern ohio river
valley. marine dense fog with visibilities of 1 nautical mile or 
less continues across the southern half of the open waters 
through tonight. it is possible that fog could start to expand 
further north this evening into tonight as southerly winds develop
across the lake. fog may persist all the way through saturday
morning until a cold front scours it out.

low pressure around 29.5 inches will develop in the central 
plains tonight and track toward the upper mississippi river 
valley by friday evening. this low will move near or just north of
lake michigan later friday night into saturday morning, quickly 
moving into quebec by saturday evening. 

as the low passes to the north, breezy southerly winds will 
develop for friday afternoon and night, then shifting west to
northwest on saturday with the passage of the cold front. 
widespread rain and embedded thunderstorms will accompany the 
approaching and passing low friday into friday night. breezy 
southwest winds are then forecast for sunday into monday.


lmz261-362-364-366-563-565-567-868-060430-
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-
335 pm cst thu mar 5 2026

sheboygan wi to pentwater mi north...

.tonight...east winds 15 to 25 kt becoming southeast 10 to 20 kt.
patchy dense fog. chance of light freezing rain overnight. waves 
2 to 4 ft subsiding to 1 to 2 ft. 
.friday...southeast winds 10 to 20 kt increasing to 30 kt. patchy
fog. rain and slight chance of thunderstorms in the afternoon. 
waves 1 to 2 ft building to 4 to 6 ft occasionally to 8 ft.
.friday night...south winds 15 to 25 kt becoming southwest to
30 kt. patchy dense fog in the evening. rain with a chance of
thunderstorms. waves 4 to 6 ft occasionally to 8 ft building to
6 to 9 ft occasionally to 12 ft. 
.saturday...southwest winds to 30 kt becoming northwest. chance
of rain in the morning. waves 6 to 9 ft occasionally to 12 ft. 
.saturday night...west winds 10 to 20 kt becoming southwest to
30 kt overnight. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...southwest gales to 40 kt. waves 6 to 9 ft occasionally
to 12 ft building to 7 to 10 ft occasionally to 13 ft. 
.sunday night...southwest gales to 40 kt. waves 8 to 11 ft
occasionally to 14 ft. 
.monday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.tuesday...east winds 15 to 25 kt becoming southeast. chance of
rain and snow. waves 4 to 7 ft occasionally to 9 ft building to
5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 051457
glflm 
expires:202603052215;;671215

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 am cst thu mar 5 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...

east to northeast winds will continue through much of today, as 
weak low pressure around 29.9 inches passes across the northern 
ohio river valley. rain and drizzle are possible across the 
southern half of the lake into today, while marine dense fog with 
visibilities of 1 nautical mile or less continues across the
southern third of the open waters today into tonight.

low pressure around 29.5 inches will develop in the central 
plains thursday night, and track toward the upper mississippi 
river valley by friday evening. this low will move near or just 
north of lake michigan later friday night into saturday morning, 
quickly moving into quebec by saturday evening. 

as the low passes to the north, breezy southerly winds will 
develop for friday afternoon and night, then shifting west to
northwest on saturday, with the passage of the cold front. 
widespread rain and embedded thunderstorms will accompany the 
approaching and passing low friday into friday night. breezy
southwest winds are then forecast for sunday into monday.


lmz261-362-364-366-563-565-567-669-868-870-052215-
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 sheboygan to port washington wi 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-
857 am cst thu mar 5 2026

port washington wi to whitehall mi north...

.rest of today...east winds 15 to 25 kt becoming northeast.
patchy fog. isolated rain showers. waves 2 to 4 ft. 
.tonight...east winds 15 to 25 kt becoming southeast 10 to 20 kt.
patchy fog. waves 2 to 4 ft subsiding to 1 to 3 ft.
.friday...southeast winds 10 to 20 kt becoming south 15 to 25 kt.
patchy fog in the morning. scattered rain showers in the morning,
then rain showers in the afternoon. waves 1 to 2 ft building to
4 to 6 ft occasionally to 8 ft. 
.friday night...south winds to 30 kt becoming southwest. rain
showers with a chance of thunderstorms. waves 6 to 9 ft
occasionally to 12 ft. 
.saturday...west winds to 30 kt becoming northwest. chance of
rain showers in the morning. waves 6 to 9 ft occasionally to
12 ft. 
.saturday night...west winds 10 to 20 kt becoming southwest to
30 kt. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...southwest gales to 35 kt. waves 7 to 10 ft occasionally
to 13 ft. 
.monday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 051457
glflm 
expires:202603052215;;671216

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 am cst thu mar 5 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...

east to northeast winds will continue through much of today, as 
weak low pressure around 29.9 inches passes across the northern 
ohio river valley. rain and drizzle are possible across the 
southern half of the lake into today, while marine dense fog with 
visibilities of 1 nautical mile or less continues across the
southern third of the open waters today into tonight.

low pressure around 29.5 inches will develop in the central 
plains thursday night, and track toward the upper mississippi 
river valley by friday evening. this low will move near or just 
north of lake michigan later friday night into saturday morning, 
quickly moving into quebec by saturday evening. 

as the low passes to the north, breezy southerly winds will 
develop for friday afternoon and night, then shifting west to
northwest on saturday, with the passage of the cold front. 
widespread rain and embedded thunderstorms will accompany the 
approaching and passing low friday into friday night. breezy
southwest winds are then forecast for sunday into monday.


lmz080-671-673-675-777-779-872-874-876-878-052215-
lake michigan from michigan city in to st. joseph mi 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 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-
857 am cst thu mar 5 2026

port washington wi to whitehall mi south...

...dense fog advisory in effect until 6 am cst friday...

.rest of today...northeast winds 10 to 15 kt. widespread dense
fog. scattered rain showers through mid morning, then isolated
rain showers this afternoon. waves 1 to 2 ft. 
.tonight...northeast winds 10 to 15 kt becoming southeast. areas
of dense fog. waves 1 to 2 ft. 
.friday...southeast winds 10 to 15 kt increasing to 10 to 20 kt
late in the morning, then becoming south 15 to 25 kt early in the
afternoon diminishing to 10 to 20 kt late. patchy fog in the
morning. scattered rain showers in the morning, then rain showers
likely with a chance of thunderstorms in the afternoon. waves
1 to 2 ft building to 4 to 6 ft occasionally to 8 ft. 
.friday night...south winds to 30 kt becoming southwest. chance
of showers and thunderstorms in the evening, then showers with a
chance of thunderstorms overnight. waves 6 to 9 ft occasionally
to 12 ft. 
.saturday...southwest winds to 30 kt becoming northwest 15 to
25 kt. chance of rain showers in the morning. waves 6 to 9 ft
occasionally to 12 ft. 
.saturday night...west winds 10 to 20 kt becoming southwest 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.sunday...southwest winds to 30 kt. waves 4 to 7 ft occasionally
to 9 ft building to 5 to 8 ft occasionally to 10 ft. 
.monday...southwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft.  

$$

fzus63 kmqt 052101
glfls 
expires:202603060900;;687262

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu mar 5 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 30.7 inch high over central quebec this afternoon moves east 
tonight, allowing 30.2 inch high pressure over lake superior this 
afternoon to fall to 30.0 inches by friday morning ahead of a 29.5 
inch low developing over kansas and nebraska. this low tracks 
northeast to upper michigan and lake superior at 29.4 inches by 
saturday morning. weak 29.8 ridging builds over the lake on saturday 
evening as the low quickly departs into quebec. 29.5 inch troughing 
returns to the lake on sunday as a 29.1 inch low tracks across 
northern ontario. this will be closely followed by a 29.3 inch 
clipper low crossing the lake monday morning. by tuesday morning, 
the lake will be between 30.3 inch high pressure over northern 
ontario and 29.6 inch low pressure over the upper mississippi river 
valley.



lsz264-060900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est thu mar 5 2026

.late this afternoon...east winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 feet. 
.tonight...east winds 10 to 20 knots veering southeast by
midnight. patchy fog. waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.friday...southeast winds 10 to 20 knots. patchy fog in the
morning. areas of drizzle and patchy freezing drizzle in the
morning, then a chance of rain showers in the afternoon. waves
2 to 4 feet. 
.friday night...southeast winds 5 to 15 knots veering northwest
by midnight, then becoming north 15 to 25 knots late. a chance of
rain showers in the evening, then rain showers likely, possibly
mixed with snow showers after midnight. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.saturday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. a chance of snow showers, possibly
mixed with rain in the morning. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.saturday night...southwest winds 20 to 30 knots increasing to
gales to 40 knots after midnight. waves building to 5 to 8 feet
occasionally to 10 feet. 
.sunday...southwest gales to 40 knots. waves building to 6 to
9 feet occasionally to 11 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.sunday night...southwest winds 20 to 30 knots. waves subsiding
to 3 to 6 feet occasionally to 8 feet, then building to 4 to
7 feet occasionally to 9 feet. 
.monday...west winds 20 to 30 knots becoming north 15 to
25 knots. waves subsiding to 1 to 3 feet, then building to 3 to
6 feet occasionally to 8 feet. 
.tuesday...east winds 15 to 25 knots becoming northeast gales to
35 knots. a chance of snow showers. waves building to 8 to
11 feet occasionally to 14 feet. 

$$

fzus63 kmqt 052101
glfls 
expires:202603060900;;687263

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu mar 5 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 30.7 inch high over central quebec this afternoon moves east 
tonight, allowing 30.2 inch high pressure over lake superior this 
afternoon to fall to 30.0 inches by friday morning ahead of a 29.5 
inch low developing over kansas and nebraska. this low tracks 
northeast to upper michigan and lake superior at 29.4 inches by 
saturday morning. weak 29.8 ridging builds over the lake on saturday 
evening as the low quickly departs into quebec. 29.5 inch troughing 
returns to the lake on sunday as a 29.1 inch low tracks across 
northern ontario. this will be closely followed by a 29.3 inch 
clipper low crossing the lake monday morning. by tuesday morning, 
the lake will be between 30.3 inch high pressure over northern 
ontario and 29.6 inch low pressure over the upper mississippi river 
valley.



lsz265-060900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est thu mar 5 2026

.late this afternoon...east winds 15 to 25 knots. waves 2 to
4 feet. 
.tonight...east winds 15 to 25 knots veering southeast by
midnight, then diminishing to 10 to 20 knots late. patchy fog
after midnight. waves subsiding to calm to 2 feet. 
.friday...southeast winds 10 to 20 knots. patchy fog in the
morning. areas of drizzle in the morning, then a chance of rain
showers in the afternoon. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.friday night...southeast winds 10 to 20 knots veering southwest
by midnight, then becoming northwest 15 to 25 knots late. a
chance of rain showers in the evening, then rain showers after
midnight. waves calm to 2 feet. 
.saturday...northwest winds 20 to 30 knots. a chance of snow
showers, possibly mixed with rain in the morning. waves building
to 3 to 6 feet occasionally to 8 feet. 
.saturday night...southwest winds 15 to 25 knots increasing to
gales to 35 knots after midnight. waves subsiding to 1 to 3 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.sunday...southwest gales to 40 knots becoming west gales to
35 knots in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.sunday night...southwest winds 20 to 30 knots increasing to
gales to 35 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday...west winds 20 to 30 knots becoming north 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
3 to 5 feet occasionally to 7 feet. 
.tuesday...east winds 20 to 30 knots becoming northeast gales to
35 knots. a chance of snow showers. a chance of freezing rain.
waves building to 8 to 11 feet occasionally to 14 feet. 

$$

fzus63 kmqt 052101
glfls 
expires:202603060900;;687260

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu mar 5 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 30.7 inch high over central quebec this afternoon moves east 
tonight, allowing 30.2 inch high pressure over lake superior this 
afternoon to fall to 30.0 inches by friday morning ahead of a 29.5 
inch low developing over kansas and nebraska. this low tracks 
northeast to upper michigan and lake superior at 29.4 inches by 
saturday morning. weak 29.8 ridging builds over the lake on saturday 
evening as the low quickly departs into quebec. 29.5 inch troughing 
returns to the lake on sunday as a 29.1 inch low tracks across 
northern ontario. this will be closely followed by a 29.3 inch 
clipper low crossing the lake monday morning. by tuesday morning, 
the lake will be between 30.3 inch high pressure over northern 
ontario and 29.6 inch low pressure over the upper mississippi river 
valley.



lsz162-060900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est thu mar 5 2026 /300 pm cst thu mar 5 2026/

.late this afternoon...northeast winds 15 to 25 knots. patchy
fog. a slight chance of snow showers and patchy freezing drizzle.
waves 3 to 6 feet occasionally to 8 feet. 
.tonight...northeast winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then veering east late. patchy fog. patchy
freezing drizzle. patchy drizzle after midnight. waves subsiding
to 1 to 3 feet. 
.friday...east winds 5 to 15 knots backing northeast. patchy fog
in the morning. areas of drizzle in the morning. a chance of rain
showers. waves subsiding to calm to 2 feet. 
.friday night...north winds 5 to 15 knots backing northwest by
midnight, then increasing to 10 to 20 knots late. a slight chance
of snow showers in the evening. rain showers likely. snow showers
likely, possibly mixed with sleet after midnight. waves calm to
2 feet. 
.saturday...northwest winds 10 to 20 knots backing southwest in
the afternoon. a slight chance of snow showers, possibly mixed
with rain in the morning. waves calm to 2 feet. 
.saturday night...southwest winds 20 to 30 knots increasing to
gales to 35 knots after midnight. waves building to 5 to 8 feet
occasionally to 10 feet. 
.sunday...southwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...southwest winds 15 to 25 knots veering west after
midnight. waves subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots becoming northeast 10 to
20 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.tuesday...east winds 15 to 25 knots becoming northeast 20 to
30 knots. snow showers likely, then a chance of snow showers.
waves building to 5 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 052101
glfls 
expires:202603060900;;687265

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu mar 5 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 30.7 inch high over central quebec this afternoon moves east 
tonight, allowing 30.2 inch high pressure over lake superior this 
afternoon to fall to 30.0 inches by friday morning ahead of a 29.5 
inch low developing over kansas and nebraska. this low tracks 
northeast to upper michigan and lake superior at 29.4 inches by 
saturday morning. weak 29.8 ridging builds over the lake on saturday 
evening as the low quickly departs into quebec. 29.5 inch troughing 
returns to the lake on sunday as a 29.1 inch low tracks across 
northern ontario. this will be closely followed by a 29.3 inch 
clipper low crossing the lake monday morning. by tuesday morning, 
the lake will be between 30.3 inch high pressure over northern 
ontario and 29.6 inch low pressure over the upper mississippi river 
valley.



lsz267-060900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est thu mar 5 2026

.late this afternoon...east winds 10 to 20 knots. waves 1 to
3 feet. 
.tonight...southeast winds 10 to 20 knots increasing to 15 to
25 knots by midnight. patchy fog after midnight. waves building
to 2 to 4 feet. 
.friday...southeast winds 15 to 25 knots. patchy fog in the
morning. areas of drizzle and patchy freezing drizzle in the
morning, then a chance of rain showers in the afternoon. waves
2 to 4 feet. 
.friday night...southeast winds 15 to 25 knots becoming south
10 to 20 knots by midnight. rain showers. waves subsiding to calm
to 2 feet. 
.saturday...northwest winds 20 to 30 knots. rain showers,
possibly mixed with snow in the morning. waves building to 5 to
9 feet occasionally to 11 feet. 
.saturday night...west winds 10 to 20 knots becoming south gales
to 35 knots after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet, then building to 5 to 8 feet occasionally
to 10 feet. 
.sunday...southwest gales to 40 knots. waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.sunday night...southwest gales to 35 knots. waves subsiding to
4 to 7 feet occasionally to 9 feet, then building to 6 to 9 feet
occasionally to 11 feet. 
.monday...west gales to 35 knots becoming northwest 10 to
20 knots. waves subsiding to 2 to 4 feet. 
.tuesday...east winds 15 to 25 knots becoming northeast gales to
35 knots. a chance of snow showers, possibly mixed with rain,
then snow showers, possibly mixed with rain and freezing rain
likely. waves building to 7 to 10 feet occasionally to 13 feet. 

$$

fzus63 kmqt 052101
glfls 
expires:202603060900;;687264

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu mar 5 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 30.7 inch high over central quebec this afternoon moves east 
tonight, allowing 30.2 inch high pressure over lake superior this 
afternoon to fall to 30.0 inches by friday morning ahead of a 29.5 
inch low developing over kansas and nebraska. this low tracks 
northeast to upper michigan and lake superior at 29.4 inches by 
saturday morning. weak 29.8 ridging builds over the lake on saturday 
evening as the low quickly departs into quebec. 29.5 inch troughing 
returns to the lake on sunday as a 29.1 inch low tracks across 
northern ontario. this will be closely followed by a 29.3 inch 
clipper low crossing the lake monday morning. by tuesday morning, 
the lake will be between 30.3 inch high pressure over northern 
ontario and 29.6 inch low pressure over the upper mississippi river 
valley.



lsz266-060900-
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 pm est thu mar 5 2026

.late this afternoon...east winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 feet. 
.tonight...southeast winds 15 to 25 knots. patchy fog after
midnight. patchy freezing drizzle after midnight. waves subsiding
to 2 to 4 feet. 
.friday...southeast winds 15 to 25 knots veering south by late
morning, then backing southeast by mid afternoon. patchy fog in
the morning. patchy drizzle and freezing drizzle in the morning,
then a chance of rain showers in the afternoon. waves 2 to
4 feet. 
.friday night...south winds 10 to 20 knots becoming west 15 to
25 knots late. a chance of rain showers and a slight chance of
thunderstorms in the evening, then rain showers after midnight.
waves subsiding to 1 to 3 feet. 
.saturday...northwest gales to 35 knots. a chance of rain and
snow showers in the morning. waves building to 7 to 10 feet
occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.saturday night...west winds 15 to 25 knots becoming southwest
gales to 40 knots after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet, then building to 5 to 8 feet occasionally
to 10 feet. 
.sunday...southwest gales to 40 knots. waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.sunday night...southwest gales to 35 knots. waves subsiding to
4 to 7 feet occasionally to 9 feet, then building to 6 to 9 feet
occasionally to 11 feet. 
.monday...west gales to 35 knots becoming north 15 to 25 knots.
waves subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...east winds 20 to 30 knots becoming northeast gales to
35 knots. a chance of rain showers. a chance of snow showers.
rain showers likely. waves building to 9 to 12 feet occasionally
to 15 feet. 

$$

fzus63 kmqt 052101
glfls 
expires:202603060900;;687261

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu mar 5 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 30.7 inch high over central quebec this afternoon moves east 
tonight, allowing 30.2 inch high pressure over lake superior this 
afternoon to fall to 30.0 inches by friday morning ahead of a 29.5 
inch low developing over kansas and nebraska. this low tracks 
northeast to upper michigan and lake superior at 29.4 inches by 
saturday morning. weak 29.8 ridging builds over the lake on saturday 
evening as the low quickly departs into quebec. 29.5 inch troughing 
returns to the lake on sunday as a 29.1 inch low tracks across 
northern ontario. this will be closely followed by a 29.3 inch 
clipper low crossing the lake monday morning. by tuesday morning, 
the lake will be between 30.3 inch high pressure over northern 
ontario and 29.6 inch low pressure over the upper mississippi river 
valley.



lsz263-060900-
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 pm est thu mar 5 2026

.late this afternoon...northeast winds 10 to 20 knots. patchy
fog. a slight chance of snow showers and patchy freezing drizzle.
waves 3 to 6 feet occasionally to 8 feet. 
.tonight...east winds 10 to 20 knots diminishing to 5 to 15 knots
by midnight, then veering southeast late. patchy fog. patchy
drizzle and freezing drizzle after midnight. waves subsiding to
1 to 3 feet. 
.friday...southeast winds 5 to 15 knots. patchy fog in the
morning. areas of drizzle and patchy freezing drizzle in the
morning, then a chance of rain showers in the afternoon. waves
subsiding to calm to 2 feet. 
.friday night...north winds 5 to 15 knots increasing to 15 to
25 knots. a chance of rain showers in the evening, then rain
showers likely, possibly mixed with snow showers after midnight.
waves building to 1 to 3 feet. 
.saturday...northwest winds 15 to 25 knots backing west in the
afternoon. a chance of snow showers, possibly mixed with rain in
the morning. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.saturday night...southwest winds 20 to 30 knots increasing to
gales to 35 knots after midnight. waves building to 5 to 8 feet
occasionally to 10 feet. 
.sunday...southwest gales to 40 knots. waves building to 6 to
9 feet occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...southwest winds 20 to 30 knots. waves subsiding
to 3 to 6 feet occasionally to 8 feet. 
.monday...west winds 20 to 30 knots becoming northeast 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
3 to 5 feet occasionally to 7 feet. 
.tuesday...east winds 15 to 25 knots becoming northeast gales to
35 knots. a chance of snow showers. waves building to 5 to 9 feet
occasionally to 11 feet. 

$$