fzus63 kdtx 160744
glflh 
expires:202610161545;;183305

open lake forecast for lake huron
national weather service detroit/pontiac mi
344 am edt fri oct 16 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...deepening low pressure tracks across the central great
lakes this morning. a strong cold front in its wake brings
northerly gales this afternoon and evening. a ridge of high
pressure then builds across the ohio valley on saturday and
sunday with gusts westerly winds across the central lakes.


lhz361-161545-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
344 am edt fri oct 16 2026

...gale warning in effect from 1 pm edt this afternoon through
late tonight...

.today...north winds 15 to 20 knots with gusts to around 30 knots
increasing to 30 knots with gusts to 35 knot gales. waves 4 to
6 feet building to 6 to 9 feet late in the afternoon. waves
occasionally around 12 feet. 
.tonight...north winds to 30 knots with gusts to 35 knot gales
decreasing to 10 to 15 knots. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...northwest winds 5 to 10 knots becoming southwest
10 to 15 knots in the late morning and early afternoon...then
becoming west 15 to 20 knots with gusts to around 30 knots early
in the afternoon. waves 1 to 3 feet building to 4 to 6 feet early
in the afternoon. waves occasionally around 8 feet. 
.saturday night...southwest winds 15 to 20 knots with gusts to
around 30 knots. waves 4 to 6 feet. waves occasionally around
8 feet. 
.sunday...southwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots late in the afternoon.
waves 3 to 5 feet. 
.monday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then becoming
light and variable . waves 2 to 4 feet subsiding to 2 feet or
less. 
.tuesday...light and variable winds. waves 2 feet or less. 


$$

fzus63 kdtx 160744
glflh 
expires:202610161545;;183306

open lake forecast for lake huron
national weather service detroit/pontiac mi
344 am edt fri oct 16 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...deepening low pressure tracks across the central great
lakes this morning. a strong cold front in its wake brings
northerly gales this afternoon and evening. a ridge of high
pressure then builds across the ohio valley on saturday and
sunday with gusts westerly winds across the central lakes.


lhz362-363-161545-
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-
344 am edt fri oct 16 2026

...gale warning in effect from 1 pm edt this afternoon through
late tonight...

.today...north winds 15 to 20 knots becoming northwest to
30 knots with gusts to 40 knot gales. a chance of rain. waves
4 to 6 feet building to 8 to 12 feet in the afternoon. waves
occasionally around 15 feet. 
.tonight...north at 35 knot gales with gusts to 40 knot gales
decreasing to 20 to 25 knots with gusts to around 30 knots. waves
10 to 14 feet. waves occasionally around 18 feet. 
.saturday...north winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and early afternoon...then
increasing to 10 to 15 knots early in the afternoon. waves 6 to
9 feet subsiding to 3 to 5 feet in the late morning and
afternoon. waves occasionally around 12 feet. 
.saturday night...southwest winds 15 to 20 knots. waves 4 to
6 feet. 
.sunday...southwest winds 20 to 25 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots with gusts to around 30 knots
late in the evening. waves 6 to 9 feet. waves occasionally around
12 feet. 
.monday...southwest winds 10 to 15 knots becoming south 5 to
10 knots early in the evening...then veering to the southwest by
midnight. waves 3 to 5 feet subsiding to 1 to 3 feet . 
.tuesday...light and variable winds. waves 2 feet or less. 


$$

fzus63 kdtx 160744
glflh 
expires:202610161545;;183307

open lake forecast for lake huron
national weather service detroit/pontiac mi
344 am edt fri oct 16 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...deepening low pressure tracks across the central great
lakes this morning. a strong cold front in its wake brings
northerly gales this afternoon and evening. a ridge of high
pressure then builds across the ohio valley on saturday and
sunday with gusts westerly winds across the central lakes.


lhz462>464-161545-
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-
344 am edt fri oct 16 2026

...gale warning in effect from 1 pm edt this afternoon through
late tonight...

.today...west winds 20 to 25 knots with gusts to around 30 knots
veering to the northwest with gusts to 35 knot gales early in the
afternoon...then increasing to 30 knots with gusts to 35 knot
gales late in the afternoon. a chance of rain in the morning...
then rain likely in the afternoon. waves 4 to 6 feet building to
8 to 12 feet in the afternoon. waves occasionally around 15 feet.
.tonight...north at 35 knot gales decreasing to 30 knots after
midnight. gusts to 40 knot gales . rain in the evening. waves
12 to 16 feet. waves occasionally around 20 feet. 
.saturday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then becoming
west 5 to 10 knots early in the afternoon. waves 8 to 12 feet
subsiding to 3 to 5 feet early in the afternoon. waves
occasionally around 15 feet. 
.saturday night...southwest winds 15 to 20 knots. waves 3 to
5 feet. 
.sunday...southwest winds 15 to 20 knots becoming south 10 to
15 knots late in the evening. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.monday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...west winds 5 to 10 knots early in the morning becoming
light and variable...then becoming northeast 5 to 10 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kmkx 160207
glflm 
expires:202610160930;;169472

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 pm cdt thu oct 15 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 of 29.7 inches over northeast il will deepen to 
around 29.4 inches as it shifts into the eastern great lakes 
through friday. expect a northerly wind shift tonight to  
increase to high-end gales by late friday morning as the low
departs while a strong high pressure around 30.7 inches builds into
the plains. a gale warning remains in effect for all of the open 
waters of lake michigan friday morning into friday night.

light rain will continue over the north half overnight, with
intermittent rain over the south half. lake effect showers and a 
few thunderstorms are possible friday along the back side of 
departing low pressure. a few waterspouts are possible in the 
friday showers/thunderstorms, particularly over the south half of
lake michigan. 

as the high sinks toward the ohio river valley on saturday, strong low
pressure around 29.0 inches will develop in northern manitoba
through the weekend. the tight pressure gradient may bring 
southwest gales to lake michigan on sunday, primarily over the
north half.


lmz080-669-671-673-675-777-779-870-872-874-876-878-160930-
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-
907 pm cdt thu oct 15 2026

sheboygan wi to pentwater mi south...

...gale warning in effect from friday morning through late friday
night...

.rest of tonight...south winds 15 to 25 kt becoming southwest
late this evening, then becoming west to 30 kt after midnight. 
chance of showers. slight chance of waterspouts overnight. waves 
2 to 4 ft building to 8 to 12 ft occasionally to 16 ft. 
.friday...northwest gales to 35 kt becoming north gales to 40 kt
early in the afternoon, then increasing to gales to 45 kt late.
slight chance of waterspouts. chance of showers in the morning,
then showers in the afternoon. waves 10 to 14 ft occasionally to
18 ft building to 18 to 23 ft occasionally to 30 ft. 
.friday night...north gales to 45 kt diminishing to 30 kt. chance
of rain showers in the evening. waves 18 to 23 ft occasionally to
30 ft subsiding to 10 to 14 ft occasionally to 18 ft. 
.saturday...north winds 10 to 20 kt backing to southwest 15 to
25 kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.saturday night...southwest winds to 30 kt. waves 7 to 10 ft
occasionally to 13 ft. 
.sunday...southwest winds to 30 kt with a few gale force gusts up
to 35 kt. waves 10 to 14 ft occasionally to 18 ft.
.sunday night...southwest winds to 30 kt diminishing to 15 to 25 
kt. waves 8 to 12 ft occasionally to 16 ft subsiding to 6 to 9 ft 
occasionally to 12 ft. 
.monday...southwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.tuesday...southwest winds 5 to 10 kt backing to southeast. waves
1 to 2 ft.  

$$

fzus63 kmkx 160207
glflm 
expires:202610160930;;169471

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 pm cdt thu oct 15 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 of 29.7 inches over northeast il will deepen to 
around 29.4 inches as it shifts into the eastern great lakes 
through friday. expect a northerly wind shift tonight to  
increase to high-end gales by late friday morning as the low
departs while a strong high pressure around 30.7 inches builds into
the plains. a gale warning remains in effect for all of the open 
waters of lake michigan friday morning into friday night.

light rain will continue over the north half overnight, with
intermittent rain over the south half. lake effect showers and a 
few thunderstorms are possible friday along the back side of 
departing low pressure. a few waterspouts are possible in the 
friday showers/thunderstorms, particularly over the south half of
lake michigan. 

as the high sinks toward the ohio river valley on saturday, strong low
pressure around 29.0 inches will develop in northern manitoba
through the weekend. the tight pressure gradient may bring 
southwest gales to lake michigan on sunday, primarily over the
north half.


lmz261-362-364-366-563-565-567-868-160930-
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-
907 pm cdt thu oct 15 2026

sheboygan wi to pentwater mi north...

...gale warning in effect from friday morning through late friday
night...

.rest of tonight...southeast winds 10 to 20 kt becoming east late
this evening, then becoming north 15 to 25 kt after midnight and
increasing to 30 kt late. showers. slight chance of waterspouts
overnight. waves 2 to 4 ft building to 5 to 8 ft occasionally to
10 ft. 
.friday...north winds to 30 kt increasing to gales to 45 kt.
slight chance of waterspouts. showers in the morning, then chance
of showers in the afternoon. waves 7 to 10 ft occasionally to
13 ft building to 14 to 18 ft occasionally to 23 ft. 
.friday night...north gales to 40 kt becoming northwest winds 10 
to 20 kt. waves 14 to 18 ft occasionally to 23 ft subsiding to 6 
to 9 ft occasionally to 12 ft. 
.saturday...west winds 15 to 25 kt becoming southwest to 30 kt.
waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft
occasionally to 10 ft. 
.saturday night...southwest gales to 35 kt increasing to gales to
40 kt. waves 6 to 9 ft occasionally to 12 ft building to 8 to
12 ft occasionally to 16 ft. 
.sunday...southwest gales to 40 kt. waves 10 to 14 ft
occasionally to 18 ft. 
.sunday night...southwest gales to 40 kt. waves 8 to 12 ft
occasionally to 16 ft subsiding to 7 to 10 ft occasionally to
13 ft. 
.monday...southwest winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.tuesday...northeast winds 5 to 10 kt becoming east. waves 1 to
2 ft.  

$$

fzus63 kmqt 160801
glfls 
expires:202610162000;;183711

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri oct 16 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 29.6 inch low over southern ontario this morning lifts to southern 
quebec at 29.5 inches this afternoon. in its wake, a 30.8 inch high 
lifting off of the central rockies weakens to 30.6 inches today as 
it moves east over the plains. this evening, the aforementioned low 
deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the northern canadian prairie provinces towards hudson bay, 
deepening to 29.1 inches by the time it arrives on sunday. by 
sunday, the high will build to 30.6 inches over the northeastern 
conus. as the low moves east over hudson bay and weakens with time 
sunday night into monday afternoon, expect high pressure of 30.3 
inches to return to the upper great lakes by late monday. the high 
pressure strengthens to 30.4 inches over lake superior by tuesday, 
then 30.5 inches over northeastern ontario tuesday evening and 30.6 
inches over quebec wednesday. 




lsz266-162000-
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 edt fri oct 16 2026

...gale warning in effect from 8 am edt this morning through this
evening...

.early this morning...north winds 20 to 30 knots. showers. waves
2 to 4 feet building to 4 to 7 feet occasionally to 9 feet. 
.today...north gales to 45 knots. a chance of showers through
early afternoon. waves building to 15 to 20 feet occasionally to
25 feet, then subsiding to 12 to 17 feet occasionally to 21 feet.
.tonight...north winds 20 to 30 knots becoming northwest 15 to
25 knots after midnight, then backing west late. waves subsiding
to 2 to 4 feet. 
.saturday...west winds 20 to 30 knots backing southwest late.
waves building to 8 to 11 feet occasionally to 14 feet, then
subsiding to 6 to 9 feet occasionally to 11 feet. 
.saturday night...southwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. waves subsiding to 4 to 8 feet
occasionally to 10 feet. 
.sunday...southwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves building to 8 to 11 feet
occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.sunday night...southwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.monday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.tuesday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202610162000;;183712

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri oct 16 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 29.6 inch low over southern ontario this morning lifts to southern 
quebec at 29.5 inches this afternoon. in its wake, a 30.8 inch high 
lifting off of the central rockies weakens to 30.6 inches today as 
it moves east over the plains. this evening, the aforementioned low 
deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the northern canadian prairie provinces towards hudson bay, 
deepening to 29.1 inches by the time it arrives on sunday. by 
sunday, the high will build to 30.6 inches over the northeastern 
conus. as the low moves east over hudson bay and weakens with time 
sunday night into monday afternoon, expect high pressure of 30.3 
inches to return to the upper great lakes by late monday. the high 
pressure strengthens to 30.4 inches over lake superior by tuesday, 
then 30.5 inches over northeastern ontario tuesday evening and 30.6 
inches over quebec wednesday. 




lsz267-162000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt fri oct 16 2026

...gale warning in effect from 11 am edt this morning through
this evening...

.early this morning...north winds 15 to 25 knots. showers. waves
1 to 3 feet building to 3 to 5 feet occasionally to 7 feet. 
.today...north gales to 40 knots. a chance of showers through
early afternoon. waves building to 12 to 17 feet occasionally to
21 feet, then subsiding to 10 to 14 feet occasionally to 18 feet.
.tonight...north gales to 35 knots diminishing to 15 to 25 knots
after midnight, then becoming west 10 to 20 knots late. a slight
chance of rain showers. waves subsiding to 2 to 4 feet. 
.saturday...west winds 15 to 25 knots becoming southwest 20 to
30 knots in the afternoon, then diminishing to 15 to 25 knots
late. waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...southwest winds 15 to 25 knots increasing to
20 to 30 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 winds 20 to 30 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 diminishing to
15 to 25 knots after midnight. waves subsiding to 2 to 4 feet. 
.monday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.tuesday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202610162000;;183707

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri oct 16 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 29.6 inch low over southern ontario this morning lifts to southern 
quebec at 29.5 inches this afternoon. in its wake, a 30.8 inch high 
lifting off of the central rockies weakens to 30.6 inches today as 
it moves east over the plains. this evening, the aforementioned low 
deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the northern canadian prairie provinces towards hudson bay, 
deepening to 29.1 inches by the time it arrives on sunday. by 
sunday, the high will build to 30.6 inches over the northeastern 
conus. as the low moves east over hudson bay and weakens with time 
sunday night into monday afternoon, expect high pressure of 30.3 
inches to return to the upper great lakes by late monday. the high 
pressure strengthens to 30.4 inches over lake superior by tuesday, 
then 30.5 inches over northeastern ontario tuesday evening and 30.6 
inches over quebec wednesday. 




lsz162-162000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt fri oct 16 2026 /300 am cdt fri oct 16 2026/

...gale warning in effect until 2 pm edt /1 pm cdt/ this
afternoon...

.early this morning...north gales to 40 knots. a slight chance of
showers. waves 3 to 6 feet occasionally to 8 feet building to
6 to 9 feet occasionally to 11 feet. 
.today...north gales to 40 knots diminishing to 15 to 25 knots
late. waves building to 9 to 12 feet occasionally to 15 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.tonight...northwest winds 10 to 20 knots backing west after
midnight, then becoming southwest 20 to 30 knots late. waves
subsiding to calm to 2 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.saturday...southwest gales to 35 knots diminishing to 20 to
30 knots late. waves building to 8 to 11 feet occasionally to
14 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday night...southwest gales to 40 knots. waves building to
9 to 12 feet occasionally to 15 feet. 
.sunday...southwest gales to 40 knots. waves subsiding to 5 to
8 feet occasionally to 10 feet. 
.sunday night...southwest winds 20 to 30 knots becoming west 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...west winds 5 to 15 knots veering northeast. waves calm
to 2 feet. 
.tuesday...east winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202610162000;;183708

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri oct 16 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 29.6 inch low over southern ontario this morning lifts to southern 
quebec at 29.5 inches this afternoon. in its wake, a 30.8 inch high 
lifting off of the central rockies weakens to 30.6 inches today as 
it moves east over the plains. this evening, the aforementioned low 
deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the northern canadian prairie provinces towards hudson bay, 
deepening to 29.1 inches by the time it arrives on sunday. by 
sunday, the high will build to 30.6 inches over the northeastern 
conus. as the low moves east over hudson bay and weakens with time 
sunday night into monday afternoon, expect high pressure of 30.3 
inches to return to the upper great lakes by late monday. the high 
pressure strengthens to 30.4 inches over lake superior by tuesday, 
then 30.5 inches over northeastern ontario tuesday evening and 30.6 
inches over quebec wednesday. 




lsz263-162000-
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 edt fri oct 16 2026

...gale warning in effect until 4 pm edt this afternoon...

.early this morning...north gales to 35 knots. a chance of
showers. waves 5 to 8 feet occasionally to 10 feet building to
9 to 12 feet occasionally to 15 feet. 
.today...north gales to 40 knots diminishing to 20 to 30 knots
late. a chance of rain showers through early afternoon. waves
building to 11 to 15 feet occasionally to 19 feet, then subsiding
to 4 to 7 feet occasionally to 9 feet. 
.tonight...north winds 10 to 20 knots becoming west 5 to 15 knots
after midnight, then increasing to 20 to 30 knots late. waves
subsiding to 1 to 3 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.saturday...southwest winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.saturday night...southwest gales to 40 knots. waves subsiding to
5 to 8 feet occasionally to 10 feet, then building to 10 to
14 feet occasionally to 18 feet. 
.sunday...southwest gales to 40 knots. waves subsiding to 6 to
9 feet occasionally to 11 feet. 
.sunday night...southwest winds 20 to 30 knots becoming west
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...west winds 5 to 15 knots becoming south less than
10 knots. waves subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202610162000;;183709

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri oct 16 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 29.6 inch low over southern ontario this morning lifts to southern 
quebec at 29.5 inches this afternoon. in its wake, a 30.8 inch high 
lifting off of the central rockies weakens to 30.6 inches today as 
it moves east over the plains. this evening, the aforementioned low 
deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the northern canadian prairie provinces towards hudson bay, 
deepening to 29.1 inches by the time it arrives on sunday. by 
sunday, the high will build to 30.6 inches over the northeastern 
conus. as the low moves east over hudson bay and weakens with time 
sunday night into monday afternoon, expect high pressure of 30.3 
inches to return to the upper great lakes by late monday. the high 
pressure strengthens to 30.4 inches over lake superior by tuesday, 
then 30.5 inches over northeastern ontario tuesday evening and 30.6 
inches over quebec wednesday. 




lsz264-162000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt fri oct 16 2026

...gale warning in effect through this afternoon...

.early this morning...north gales to 35 knots. showers likely.
waves 4 to 7 feet occasionally to 9 feet building to 7 to 10 feet
occasionally to 13 feet. 
.today...north gales to 40 knots. a chance of rain showers
through early afternoon. waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.tonight...north winds 15 to 25 knots becoming northwest 5 to
15 knots after midnight, then becoming west 15 to 25 knots late.
waves subsiding to 1 to 3 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.saturday...west winds 20 to 30 knots increasing to gales to
35 knots in the afternoon, then diminishing to 20 to 30 knots
late. waves building to 9 to 12 feet occasionally to 15 feet,
then subsiding to 6 to 9 feet occasionally to 11 feet. 
.saturday night...southwest winds 20 to 30 knots increasing to
gales to 35 knots after midnight. waves subsiding to 5 to 8 feet
occasionally to 10 feet, then building to 9 to 12 feet
occasionally to 15 feet. 
.sunday...southwest gales to 35 knots. waves building to 10 to
14 feet occasionally to 18 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.sunday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.monday...west winds 5 to 15 knots diminishing to less than
10 knots. waves subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202610162000;;183710

open lake forecast for lake superior
national weather service marquette mi
400 am edt fri oct 16 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 29.6 inch low over southern ontario this morning lifts to southern 
quebec at 29.5 inches this afternoon. in its wake, a 30.8 inch high 
lifting off of the central rockies weakens to 30.6 inches today as 
it moves east over the plains. this evening, the aforementioned low 
deepens to 29.4 inches and heads towards the mouth of the st. 
lawrence river. the high then slides south of the great lakes at 
30.5 inches by saturday night as a 29.2 inch alberta clipper moves 
through the northern canadian prairie provinces towards hudson bay, 
deepening to 29.1 inches by the time it arrives on sunday. by 
sunday, the high will build to 30.6 inches over the northeastern 
conus. as the low moves east over hudson bay and weakens with time 
sunday night into monday afternoon, expect high pressure of 30.3 
inches to return to the upper great lakes by late monday. the high 
pressure strengthens to 30.4 inches over lake superior by tuesday, 
then 30.5 inches over northeastern ontario tuesday evening and 30.6 
inches over quebec wednesday. 




lsz265-162000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt fri oct 16 2026

...gale warning in effect through this evening...

.early this morning...north gales to 35 knots. showers. waves
2 to 4 feet building to 5 to 8 feet occasionally to 10 feet. 
.today...north gales to 45 knots. a chance of showers. waves
building to 15 to 20 feet occasionally to 25 feet, then subsiding
to 10 to 14 feet occasionally to 18 feet. 
.tonight...north winds 20 to 30 knots becoming northwest 10 to
20 knots after midnight, then becoming west 15 to 25 knots late.
waves subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.saturday...west winds 20 to 30 knots becoming southwest 15 to
25 knots late. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 1 to 3 feet. 
.saturday night...southwest winds 15 to 25 knots. waves building
to 3 to 6 feet occasionally to 8 feet. 
.sunday...southwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...southwest winds 15 to 25 knots. waves subsiding
to calm to 2 feet. 
.monday...west winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots becoming south 10 to
20 knots. waves calm to 2 feet. 

$$