fzus63 kdtx 040141
glflh 
expires:202604040945;;792521

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt fri apr 3 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...a low pressure system tracks from the mid-mississippi
valley into the straits by saturday evening. cooler westerly flow
follows this system sunday, with a series of weak clipper systems
expected to track through monday into tuesday.


lhz361-040945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
941 pm edt fri apr 3 2026

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


$$

fzus63 kdtx 040141
glflh 
expires:202604040945;;792522

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt fri apr 3 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...a low pressure system tracks from the mid-mississippi
valley into the straits by saturday evening. cooler westerly flow
follows this system sunday, with a series of weak clipper systems
expected to track through monday into tuesday.


lhz362-363-040945-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
941 pm edt fri apr 3 2026

.rest of tonight...north winds 10 to 15 knots becoming east 15 to
20 knots early in the morning. waves 3 to 5 feet. 
.saturday...east winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots late in the afternoon.
rain. waves 6 to 9 feet. waves occasionally around 12 feet. 
.saturday night...southeast winds 10 to 15 knots veering to the
southwest by midnight...then increasing to 15 to 20 knots after
midnight. waves 4 to 6 feet. waves occasionally around 8 feet. 
.sunday...west winds 20 to 25 knots with gusts to around
30 knots. waves 10 to 14 feet. waves occasionally around 18 feet.
.sunday night...northwest winds 15 to 20 knots with gusts to
around 30 knots becoming west 10 to 15 knots after midnight.
waves 8 to 12 feet subsiding to 5 to 7 feet after midnight. waves
occasionally around 15 feet. 
.monday...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then becoming northwest 15 to 20 knots late
in the afternoon increasing to 30 knots late in the evening. a
chance of snow and rain late in the morning. a chance of snow
late in the evening. waves 3 to 5 feet subsiding to 1 to 3 feet
late in the morning...then building to 3 to 5 feet late in the
afternoon building to 8 to 12 feet late in the evening. waves
occasionally around 15 feet. 
.tuesday...north winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots in the late morning and
early afternoon...then decreasing to 5 to 10 knots early in the
evening becoming south 10 to 15 knots by midnight. waves 8 to
12 feet subsiding to 3 to 5 feet . waves occasionally around
15 feet. 
.wednesday...south winds 20 to 25 knots increasing to 30 knots.
gusts to 35 knot gales. a chance of snow until early evening. a
chance of rain . waves 8 to 12 feet. waves occasionally around
15 feet. 


$$

fzus63 kdtx 040141
glflh 
expires:202604040945;;792523

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt fri apr 3 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...a low pressure system tracks from the mid-mississippi
valley into the straits by saturday evening. cooler westerly flow
follows this system sunday, with a series of weak clipper systems
expected to track through monday into tuesday.


lhz462>464-040945-
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-
941 pm edt fri apr 3 2026

.rest of tonight...north winds 10 to 15 knots veering to the
northeast early in the morning. waves 1 to 3 feet building to
2 to 4 feet early in the morning. 
.saturday...east winds 10 to 15 knots becoming southeast 15 to
20 knots in the afternoon. rain. waves 3 to 5 feet. 
.saturday night...south winds 10 to 15 knots veering to the
southwest by midnight...then increasing to 15 to 20 knots after
midnight. rain in the evening. waves 3 to 5 feet. 
.sunday...west winds 15 to 20 knots. gusts to 30 knots early in
the morning. waves 5 to 7 feet. waves occasionally around
10 feet. 
.sunday night...west winds 15 to 20 knots decreasing to 5 to
10 knots. waves 4 to 6 feet. 
.monday...west winds 5 to 10 knots becoming northwest 10 to
15 knots late in the afternoon...then increasing to 30 knots late
in the evening. a chance of rain and snow late in the morning. a
chance of snow late in the evening. waves 3 to 5 feet subsiding
to 1 to 3 feet late in the morning...then building to 8 to
12 feet late in the evening. waves occasionally around 15 feet. 
.tuesday...northwest winds to 30 knots becoming north 10 to
15 knots in the late morning and early afternoon...then
decreasing to 5 to 10 knots early in the evening becoming
southeast 10 to 15 knots by midnight. waves 8 to 12 feet
subsiding to 2 to 4 feet. waves occasionally around 15 feet. 
.wednesday...south winds 15 to 20 knots increasing to 30 knots
with gusts to 35 knot gales. a chance of. waves 5 to 7 feet
building to 6 to 9 feet by midnight. waves occasionally around
12 feet. 


$$

fzus63 kmkx 040159
glflm 
expires:202604040930;;792830

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 pm cdt fri apr 3 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...

northeasterly winds will continue to gust near 30 kt throughout
tonight, with a few gales expected in the far northern portions of
the lake early saturday morning. winds will gradually veer through
the day saturday as low pressure around 29.6 inches crosses the
northern portions of the lake. a few thunderstorms are expected
across the southern half of the lake tonight, with an isolated
storm becoming capable of producing hail. as low pressure exits 
into ontario and deepens to 29.3 inches, expect winds to become 
westerly and gust again around 30 kt through saturday night.

winds veer northwesterly and gradually diminish through sunday as
low pressure exits into northern quebec. a weak low around 30.0
inches in southern quebec will bring gusty conditions again 
sunday night into monday morning, with winds remaining
northwesterly. as low pressure exits into monday night, expect a
few gales to develop and winds to shift northerly. high pressure
builds into the upper midwest into tuesday, with winds becoming
light and variable. winds shift back to southerly as low pressure
develops in the northern plains into wednesday.


lmz261-362-364-366-563-565-567-868-040930-
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 cdt fri apr 3 2026

sheboygan wi to pentwater mi north...

.rest of tonight...northeast winds 15 to 25 kt becoming east to
30 kt. chance of rain showers and slight chance of light freezing
rain through early evening, then rain showers with possible
freezing rain and thunderstorms likely overnight. waves 3 to 5 ft
building to 4 to 7 ft occasionally to 9 ft. 
.saturday...east gales to 35 kt veering to southwest to 30 kt.
rain showers and freezing rain in the morning, then chance of
rain showers in the afternoon. waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.saturday night...southwest winds to 30 kt becoming west. waves
6 to 9 ft occasionally to 12 ft. 
.sunday...northwest winds to 30 kt. waves 7 to 10 ft occasionally
to 13 ft subsiding to 5 to 8 ft occasionally to 10 ft. 
.sunday night...northwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 2 to 4 ft. 
.monday...northwest winds 10 to 20 kt increasing to 30 kt in the
afternoon. waves 3 to 5 ft building to 4 to 7 ft occasionally to
9 ft. 
.monday night...north gales to 35 kt diminishing to 30 kt. waves
8 to 12 ft occasionally to 16 ft. 
.tuesday...northwest winds 15 to 25 kt backing to southwest 10 to
15 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 2 to
4 ft. 
.wednesday...south gales to 40 kt. chance of rain and snow
showers. waves 12 to 16 ft occasionally to 21 ft building to
14 to 18 ft occasionally to 23 ft.  

$$

fzus63 kmkx 040159
glflm 
expires:202604040930;;792831

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 pm cdt fri apr 3 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...

northeasterly winds will continue to gust near 30 kt throughout
tonight, with a few gales expected in the far northern portions of
the lake early saturday morning. winds will gradually veer through
the day saturday as low pressure around 29.6 inches crosses the
northern portions of the lake. a few thunderstorms are expected
across the southern half of the lake tonight, with an isolated
storm becoming capable of producing hail. as low pressure exits 
into ontario and deepens to 29.3 inches, expect winds to become 
westerly and gust again around 30 kt through saturday night.

winds veer northwesterly and gradually diminish through sunday as
low pressure exits into northern quebec. a weak low around 30.0
inches in southern quebec will bring gusty conditions again 
sunday night into monday morning, with winds remaining
northwesterly. as low pressure exits into monday night, expect a
few gales to develop and winds to shift northerly. high pressure
builds into the upper midwest into tuesday, with winds becoming
light and variable. winds shift back to southerly as low pressure
develops in the northern plains into wednesday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-040930-
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 cdt fri apr 3 2026

sheboygan wi to pentwater mi south...

.rest of tonight...northeast winds 15 to 25 kt becoming east to
30 kt. chance of rain showers and thunderstorms through early
evening, then rain showers with a chance of thunderstorms
overnight. waves 3 to 5 ft building to 4 to 7 ft occasionally to
9 ft. 
.saturday...southeast winds to 30 kt veering to west. chance of
rain showers and thunderstorms in the morning, then slight chance
of rain showers in the afternoon. waves 4 to 7 ft occasionally to
9 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.saturday night...west winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft building to 7 to 10 ft occasionally to
13 ft. 
.sunday...northwest winds to 30 kt. waves 8 to 11 ft occasionally
to 14 ft subsiding to 7 to 10 ft occasionally to 13 ft. 
.sunday night...west winds 10 to 15 kt. waves 3 to 5 ft. 
.monday...northwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft building to 4 to 7 ft
occasionally to 9 ft. 
.monday night...north winds to 30 kt. waves 8 to 12 ft
occasionally to 16 ft. 
.tuesday...north winds 15 to 25 kt becoming northeast 5 to 10 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.wednesday...south gales to 35 kt increasing to gales to 40 kt.
chance of snow showers. waves 12 to 16 ft occasionally to 21 ft. 

$$

fzus63 kmqt 040201
glfls 
expires:202604040800;;792890

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri apr 3 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...

30.3 inch ridging over the lake this evening erodes as a 29.8 inch 
low pressure currently over southern ia moves towards the great 
lakes by early saturday morning. the low moves into far eastern lake 
superior around 29.6 inches late saturday. by sunday, lake superior 
is looking to be between the low at 29.3 inches over northern quebec 
and a 30.3 inch high over the great plains. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz162-040800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt fri apr 3 2026 /900 pm cdt fri apr 3 2026/

...gale warning in effect from 2 am edt /1 am cdt/ saturday
through saturday afternoon...

.rest of tonight...east gales to 35 knots diminishing to 20 to
30 knots after midnight, then increasing to gales to 35 knots
late. a slight chance of snow by midnight. a slight chance of
sleet. snow after midnight. waves 3 to 6 feet occasionally to
8 feet building to 10 to 14 feet occasionally to 18 feet. 
.saturday...east gales to 35 knots becoming northeast 20 to
30 knots in the afternoon. snow, possibly mixed with sleet
through early afternoon, then snow showers by mid afternoon.
waves subsiding to 6 to 9 feet occasionally to 11 feet. 
.saturday night...north winds 15 to 25 knots becoming northwest
20 to 30 knots after midnight, then diminishing to 15 to 25 knots
late. a chance of snow showers through midnight. waves subsiding
to 3 to 5 feet occasionally to 7 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to 20 knots
by mid afternoon. a slight chance of rain and snow showers by mid
afternoon. waves subsiding to calm to 2 feet. 
.sunday night...west winds 10 to 20 knots becoming northwest
15 to 25 knots after midnight. a slight chance of rain showers. a
chance of snow showers after midnight. waves building to 1 to
3 feet. 
.monday...northwest winds 20 to 30 knots becoming north 15 to
25 knots by mid afternoon. a chance of snow showers. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet. 
.monday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots becoming south 20 to
30 knots. a chance of snow showers, possibly mixed with rain.
waves building to 4 to 7 feet occasionally to 9 feet. 
.wednesday...south winds 20 to 30 knots becoming west gales to
35 knots. a chance of rain showers, possibly mixed with snow.
waves subsiding to 3 to 6 feet occasionally to 8 feet, then
building to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 040201
glfls 
expires:202604040800;;792891

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri apr 3 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...

30.3 inch ridging over the lake this evening erodes as a 29.8 inch 
low pressure currently over southern ia moves towards the great 
lakes by early saturday morning. the low moves into far eastern lake 
superior around 29.6 inches late saturday. by sunday, lake superior 
is looking to be between the low at 29.3 inches over northern quebec 
and a 30.3 inch high over the great plains. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz263-040800-
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 edt fri apr 3 2026

...gale warning in effect from 2 am edt saturday through saturday
afternoon...

.rest of tonight...east winds 20 to 30 knots increasing to gales
to 35 knots late. a chance of snow. sleet, possibly mixed with
rain after midnight. waves 3 to 6 feet occasionally to 8 feet
building to 8 to 11 feet occasionally to 14 feet. 
.saturday...east gales to 35 knots diminishing to 20 to 30 knots
in the afternoon, then becoming northeast 15 to 25 knots late.
snow, possibly mixed with sleet through early afternoon. a slight
chance of rain. snow showers, possibly mixed with sleet by mid
afternoon. waves building to 9 to 12 feet occasionally to
15 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. 
.saturday night...north winds 20 to 30 knots backing northwest
after midnight. snow showers likely through midnight. waves
subsiding to 5 to 8 feet occasionally to 10 feet, then building
to 6 to 9 feet occasionally to 11 feet. 
.sunday...northwest winds 15 to 25 knots becoming west 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...west winds 5 to 15 knots becoming northwest 15 to
25 knots after midnight. a slight chance of rain and snow
showers. waves subsiding to calm to 2 feet, then building to 2 to
4 feet. 
.monday...north winds 15 to 25 knots. a chance of snow showers.
waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.monday night...north winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.tuesday...west winds 5 to 15 knots becoming south 20 to
30 knots. a chance of snow showers, possibly mixed with rain.
waves subsiding to calm to 2 feet, then building to 5 to 8 feet
occasionally to 10 feet. 
.wednesday...south winds 20 to 30 knots becoming west gales to
35 knots. a chance of rain showers, possibly mixed with snow.
waves subsiding to 3 to 6 feet occasionally to 8 feet, then
building to 9 to 12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 040201
glfls 
expires:202604040800;;792892

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri apr 3 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...

30.3 inch ridging over the lake this evening erodes as a 29.8 inch 
low pressure currently over southern ia moves towards the great 
lakes by early saturday morning. the low moves into far eastern lake 
superior around 29.6 inches late saturday. by sunday, lake superior 
is looking to be between the low at 29.3 inches over northern quebec 
and a 30.3 inch high over the great plains. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz264-040800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt fri apr 3 2026

...gale warning in effect from 2 am edt saturday through saturday
afternoon...

.rest of tonight...east winds 15 to 25 knots increasing to 20 to
30 knots after midnight. a chance of snow, possibly mixed with
sleet after midnight. waves 3 to 6 feet occasionally to 8 feet
building to 7 to 10 feet occasionally to 13 feet. 
.saturday...east gales to 35 knots diminishing to 20 to 30 knots
in the afternoon. snow through early afternoon. a slight chance
of sleet. snow showers by mid afternoon. waves building to 9 to
12 feet occasionally to 15 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet. 
.saturday night...northeast winds 15 to 25 knots becoming
northwest gales to 40 knots after midnight. snow showers through
midnight, then a slight chance of snow showers after midnight.
waves subsiding to 5 to 8 feet occasionally to 10 feet, then
building to 8 to 11 feet occasionally to 14 feet. 
.sunday...northwest gales to 40 knots becoming west 15 to
25 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...west winds 5 to 15 knots becoming north 15 to
25 knots after midnight. a slight chance of snow showers after
midnight. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 
.monday...north winds 20 to 30 knots. freezing spray. a chance of
snow showers. waves building to 4 to 8 feet occasionally to
10 feet. 
.monday night...north winds 15 to 25 knots becoming northwest
10 to 20 knots after midnight. freezing spray through midnight.
waves subsiding to 2 to 4 feet. 
.tuesday...west winds 5 to 15 knots becoming south gales to
35 knots. a chance of snow showers. waves subsiding to 1 to
3 feet, then building to 6 to 9 feet occasionally to 11 feet. 
.wednesday...south gales to 35 knots veering west. a chance of
rain and snow showers. waves building to 8 to 11 feet
occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 

$$

fzus63 kmqt 040201
glfls 
expires:202604040800;;792893

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri apr 3 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...

30.3 inch ridging over the lake this evening erodes as a 29.8 inch 
low pressure currently over southern ia moves towards the great 
lakes by early saturday morning. the low moves into far eastern lake 
superior around 29.6 inches late saturday. by sunday, lake superior 
is looking to be between the low at 29.3 inches over northern quebec 
and a 30.3 inch high over the great plains. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz265-040800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt fri apr 3 2026

...gale warning in effect from 2 am edt saturday through saturday
afternoon...

.rest of tonight...east winds 15 to 25 knots increasing to gales
to 35 knots. sleet, possibly mixed with snow and rain after
midnight. waves 3 to 5 feet occasionally to 7 feet building to
7 to 10 feet occasionally to 13 feet. 
.saturday...east gales to 35 knots diminishing to 15 to 25 knots.
freezing rain through early afternoon. sleet, possibly mixed with
rain and snow. waves building to 8 to 11 feet occasionally to
14 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. 
.saturday night...northwest winds 20 to 30 knots increasing to
gales to 40 knots after midnight. snow showers, possibly mixed
with rain through midnight, then a slight chance of snow showers
after midnight. waves subsiding to 3 to 5 feet occasionally to
7 feet, then building to 8 to 11 feet occasionally to 14 feet. 
.sunday...northwest gales to 40 knots becoming west 20 to
30 knots by mid afternoon. waves subsiding to 2 to 4 feet. 
.sunday night...west winds 10 to 20 knots becoming northwest
15 to 25 knots after midnight. a slight chance of snow showers
after midnight. waves subsiding to calm to 2 feet, then building
to 1 to 3 feet. 
.monday...north gales to 40 knots. snow showers likely through
early afternoon, then a chance of snow showers by mid afternoon.
freezing spray by mid afternoon. waves building to 8 to 11 feet
occasionally to 14 feet. 
.monday night...north winds 20 to 30 knots becoming northwest
15 to 25 knots after midnight. freezing spray. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 10 to 20 knots becoming south gales to
35 knots. a chance of snow showers, possibly mixed with rain.
waves subsiding to calm to 2 feet, then building to 6 to 9 feet
occasionally to 11 feet. 
.wednesday...south gales to 40 knots becoming west gales to
35 knots. a chance of rain showers, possibly mixed with snow.
waves building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 5 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 040201
glfls 
expires:202604040800;;792894

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri apr 3 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...

30.3 inch ridging over the lake this evening erodes as a 29.8 inch 
low pressure currently over southern ia moves towards the great 
lakes by early saturday morning. the low moves into far eastern lake 
superior around 29.6 inches late saturday. by sunday, lake superior 
is looking to be between the low at 29.3 inches over northern quebec 
and a 30.3 inch high over the great plains. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz266-040800-
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 edt fri apr 3 2026

...gale warning in effect from 2 am edt saturday through saturday
afternoon...

.rest of tonight...east winds 20 to 30 knots. sleet likely,
possibly mixed with rain and snow after midnight. waves 3 to
5 feet occasionally to 7 feet building to 6 to 9 feet
occasionally to 11 feet. 
.saturday...east gales to 35 knots diminishing to 15 to 25 knots
late. freezing rain through early afternoon. snow and sleet,
possibly mixed with rain. waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.saturday night...west winds 20 to 30 knots becoming northwest
gales to 45 knots after midnight. snow showers likely, possibly
mixed with rain showers through midnight, then a slight chance of
snow showers after midnight. waves subsiding to 4 to 7 feet
occasionally to 9 feet, then building to 10 to 14 feet
occasionally to 18 feet. 
.sunday...northwest gales to 40 knots. waves building to 11 to
15 feet occasionally to 19 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.sunday night...west winds 10 to 20 knots veering northwest after
midnight. a slight chance of snow showers after midnight. waves
subsiding to 1 to 3 feet. 
.monday...north gales to 40 knots. a chance of snow showers.
freezing spray by mid afternoon. waves building to 10 to 14 feet
occasionally to 18 feet. 
.monday night...north winds 20 to 30 knots becoming northwest
15 to 25 knots after midnight. freezing spray. waves subsiding to
4 to 7 feet occasionally to 9 feet. 
.tuesday...west winds 10 to 20 knots becoming south gales to
40 knots. a chance of snow showers. waves subsiding to 1 to
3 feet, then building to 8 to 11 feet occasionally to 14 feet. 
.wednesday...south gales to 45 knots. rain showers, possibly
mixed with snow, then a chance of rain showers, possibly mixed
with snow. waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. 

$$

fzus63 kmqt 040201
glfls 
expires:202604040800;;792895

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri apr 3 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...

30.3 inch ridging over the lake this evening erodes as a 29.8 inch 
low pressure currently over southern ia moves towards the great 
lakes by early saturday morning. the low moves into far eastern lake 
superior around 29.6 inches late saturday. by sunday, lake superior 
is looking to be between the low at 29.3 inches over northern quebec 
and a 30.3 inch high over the great plains. pressure rises on lake 
superior early next week as the high builds to 30.6 inches over the 
red river valley (of the north) on monday before moving into the 
western great lakes by tuesday.



lsz267-040800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt fri apr 3 2026

.rest of tonight...northeast winds 15 to 25 knots veering east
after midnight, then increasing to 20 to 30 knots late. a chance
of sleet, possibly mixed with snow after midnight. waves 2 to
4 feet building to 3 to 6 feet occasionally to 8 feet. 
.saturday...east winds to 30 knots with a few gale force gusts to
35 knots possible becoming southeast 15 to 25 knots late. sleet,
possibly mixed with freezing rain and snow through early
afternoon. rain. a slight chance of sleet by mid afternoon. waves
building to 6 to 9 feet occasionally to 11 feet, then subsiding
to 3 to 5 feet occasionally to 7 feet. 
.saturday night...southeast winds 15 to 25 knots becoming west to
30 knots with a few gale force gusts to 35 knots possible after
midnight, then becoming northwest to 30 knots with a few gale
force gusts to 40 knots possible late. a chance of rain and snow
showers. waves subsiding to 2 to 4 feet, then building to 10 to
14 feet occasionally to 18 feet. 
.sunday...northwest gales to 40 knots. waves building to 11 to
15 feet occasionally to 19 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.sunday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...north winds 15 to 25 knots increasing to gales to
35 knots by mid afternoon. a chance of snow showers. waves
building to 7 to 10 feet occasionally to 13 feet. 
.monday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...west winds 10 to 20 knots becoming south gales to
35 knots. waves subsiding to 1 to 3 feet, then building to 6 to
9 feet occasionally to 11 feet. 
.wednesday...south gales to 40 knots veering southwest. snow
showers likely. rain showers likely. a chance of snow showers.
waves building to 9 to 12 feet occasionally to 15 feet, then
subsiding to 7 to 10 feet occasionally to 13 feet. 

$$