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 161351
glflm 
expires:202610162115;;196771

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 am cdt fri oct 16 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 will deepen to around 29.4 inches as it shifts into 
the eastern great lakes today. expect northwest to north winds to
strengthen to high-end gales by late this morning, as a strong 
high pressure system around 30.7 inches builds into the plains. a
gale warning remains in effect for all of the open waters of lake
michigan later this morning into tonight.

lake effect showers and a few thunderstorms are possible today 
along the back side of departing low pressure. a few waterspouts 
are possible in the showers and 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 into sunday. this may bring southwest gales to far
northern portions of lake michigan saturday night into sunday
night.


lmz261-362-364-366-563-565-567-868-162115-
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-
851 am cdt fri oct 16 2026

sheboygan wi to pentwater mi north...

...gale warning in effect through late tonight...

.rest of today...north winds to 30 kt increasing to gales to
45 kt. rain showers through mid morning, then chance of rain
showers this afternoon. slight chance of waterspouts this
afternoon. waves 5 to 8 ft occasionally to 10 ft building to
14 to 18 ft occasionally to 23 ft. 
.tonight...north gales to 40 kt becoming northwest 10 to 20 kt.
waves 14 to 18 ft occasionally to 23 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.saturday...northwest winds 10 to 20 kt becoming west 15 to 25 kt
late in the morning, then becoming southwest to 30 kt in the
afternoon. 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. waves 6 to 9 ft
occasionally to 12 ft building to 8 to 11 ft occasionally to
14 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 3 to 5 ft. 
.tuesday...east winds 5 to 10 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 161351
glflm 
expires:202610162115;;196772

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 am cdt fri oct 16 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 will deepen to around 29.4 inches as it shifts into 
the eastern great lakes today. expect northwest to north winds to
strengthen to high-end gales by late this morning, as a strong 
high pressure system around 30.7 inches builds into the plains. a
gale warning remains in effect for all of the open waters of lake
michigan later this morning into tonight.

lake effect showers and a few thunderstorms are possible today 
along the back side of departing low pressure. a few waterspouts 
are possible in the showers and 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 into sunday. this may bring southwest gales to far
northern portions of lake michigan saturday night into sunday
night.


lmz080-669-671-673-675-777-779-870-872-874-876-878-162115-
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-
851 am cdt fri oct 16 2026

sheboygan wi to pentwater mi south...

...gale warning in effect through late tonight...

.rest of today...northwest winds to 30 kt becoming north gales to
45 kt. slight chance of waterspouts. scattered showers with
isolated thunderstorms through mid morning, then chance of
showers and slight chance of thunderstorms this afternoon. waves
8 to 11 ft occasionally to 14 ft building to 15 to 20 ft
occasionally to 26 ft. 
.tonight...north gales to 45 kt diminishing to 15 to 25 kt.
slight chance of waterspouts in the evening. chance of rain
showers. waves 15 to 20 ft occasionally to 26 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 3 to
5 ft. 
.saturday night...southwest winds to 30 kt. waves 6 to 9 ft
occasionally to 12 ft. 
.sunday...southwest winds to 30 kt. waves 8 to 12 ft occasionally
to 16 ft. 
.sunday night...south winds to 30 kt becoming southwest 15 to
25 kt. waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to
8 ft occasionally to 10 ft. 
.monday...southwest winds 10 to 20 kt. waves 3 to 5 ft subsiding
to 2 to 4 ft. 
.tuesday...east winds 5 to 10 kt. waves 1 ft or less.  

$$

fzus63 kmqt 161401
glfls 
expires:202610162000;;197079

open lake forecast for lake superior
national weather service marquette mi
1001 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 30.8 inch high moving through the plains today weakens to 30.6 
inches as it continues eastward. this weakening is expected to bring 
30.4 inch ridging over lake superior by this evening. 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 29.0 inches by 
the time it arrives at hudson bay on sunday. this low is expected to 
bring weak 30.0 inch troughing to northern lake superior throughout 
the day sunday. as the low continues east over hudson bay and 
weakens with time sunday night into monday afternoon, expect high 
pressure ridging of 30.3 inches to return to the upper great lakes 
by monday. the high pressure ridging strengthens to 30.4 inches over 
lake superior by tuesday as the now 30.5 inch parent high over 
northern ontario continues east into northern quebec, deepening to 
30.6 inches as it does so. 




lsz162-162000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt fri oct 16 2026 /901 am cdt fri oct 16 2026/

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

.rest of today...north gales to 40 knots diminishing to 15 to
25 knots late. waves 8 to 11 feet occasionally to 14 feet
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 5 feet
occasionally to 7 feet. 
.saturday...southwest gales to 35 knots diminishing to 20 to
30 knots late. waves building to 7 to 10 feet occasionally to
13 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday night...southwest gales to 40 knots. waves subsiding to
4 to 7 feet occasionally to 9 feet, then building to 8 to 11 feet
occasionally to 14 feet. 
.sunday...southwest gales to 40 knots. waves subsiding to 4 to
7 feet occasionally to 9 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 161401
glfls 
expires:202610162000;;197080

open lake forecast for lake superior
national weather service marquette mi
1001 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 30.8 inch high moving through the plains today weakens to 30.6 
inches as it continues eastward. this weakening is expected to bring 
30.4 inch ridging over lake superior by this evening. 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 29.0 inches by 
the time it arrives at hudson bay on sunday. this low is expected to 
bring weak 30.0 inch troughing to northern lake superior throughout 
the day sunday. as the low continues east over hudson bay and 
weakens with time sunday night into monday afternoon, expect high 
pressure ridging of 30.3 inches to return to the upper great lakes 
by monday. the high pressure ridging strengthens to 30.4 inches over 
lake superior by tuesday as the now 30.5 inch parent high over 
northern ontario continues east into northern quebec, deepening to 
30.6 inches as it does so. 




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-
1001 am edt fri oct 16 2026

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

.rest of today...north gales to 40 knots diminishing to 20 to
30 knots late. waves 10 to 14 feet occasionally to 18 feet
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 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 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 161401
glfls 
expires:202610162000;;197081

open lake forecast for lake superior
national weather service marquette mi
1001 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 30.8 inch high moving through the plains today weakens to 30.6 
inches as it continues eastward. this weakening is expected to bring 
30.4 inch ridging over lake superior by this evening. 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 29.0 inches by 
the time it arrives at hudson bay on sunday. this low is expected to 
bring weak 30.0 inch troughing to northern lake superior throughout 
the day sunday. as the low continues east over hudson bay and 
weakens with time sunday night into monday afternoon, expect high 
pressure ridging of 30.3 inches to return to the upper great lakes 
by monday. the high pressure ridging strengthens to 30.4 inches over 
lake superior by tuesday as the now 30.5 inch parent high over 
northern ontario continues east into northern quebec, deepening to 
30.6 inches as it does so. 




lsz264-162000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt fri oct 16 2026

...gale warning in effect until 5 pm edt this afternoon...

.rest of today...north gales to 40 knots. waves 10 to 14 feet
occasionally to 18 feet subsiding to 7 to 10 feet occasionally to
13 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 5 feet
occasionally to 7 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 8 to 11 feet occasionally to 14 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 4 to 7 feet
occasionally to 9 feet, then building to 7 to 10 feet
occasionally to 13 feet. 
.sunday...southwest gales to 35 knots. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 5 to 8 feet
occasionally to 10 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 161401
glfls 
expires:202610162000;;197082

open lake forecast for lake superior
national weather service marquette mi
1001 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 30.8 inch high moving through the plains today weakens to 30.6 
inches as it continues eastward. this weakening is expected to bring 
30.4 inch ridging over lake superior by this evening. 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 29.0 inches by 
the time it arrives at hudson bay on sunday. this low is expected to 
bring weak 30.0 inch troughing to northern lake superior throughout 
the day sunday. as the low continues east over hudson bay and 
weakens with time sunday night into monday afternoon, expect high 
pressure ridging of 30.3 inches to return to the upper great lakes 
by monday. the high pressure ridging strengthens to 30.4 inches over 
lake superior by tuesday as the now 30.5 inch parent high over 
northern ontario continues east into northern quebec, deepening to 
30.6 inches as it does so. 




lsz265-162000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt fri oct 16 2026

...gale warning in effect until 9 pm edt this evening...

.rest of today...north gales to 45 knots. a slight chance of
showers. waves 10 to 14 feet occasionally to 18 feet building to
12 to 17 feet occasionally to 21 feet, then subsiding to 9 to
12 feet occasionally to 15 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 2 to 4 feet. 
.saturday...west winds 20 to 30 knots becoming southwest 15 to
25 knots late. waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 2 to 4 feet. 
.saturday night...southwest winds 15 to 25 knots. waves building
to 3 to 5 feet occasionally to 7 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. 

$$

fzus63 kmqt 161401
glfls 
expires:202610162000;;197083

open lake forecast for lake superior
national weather service marquette mi
1001 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 30.8 inch high moving through the plains today weakens to 30.6 
inches as it continues eastward. this weakening is expected to bring 
30.4 inch ridging over lake superior by this evening. 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 29.0 inches by 
the time it arrives at hudson bay on sunday. this low is expected to 
bring weak 30.0 inch troughing to northern lake superior throughout 
the day sunday. as the low continues east over hudson bay and 
weakens with time sunday night into monday afternoon, expect high 
pressure ridging of 30.3 inches to return to the upper great lakes 
by monday. the high pressure ridging strengthens to 30.4 inches over 
lake superior by tuesday as the now 30.5 inch parent high over 
northern ontario continues east into northern quebec, deepening to 
30.6 inches as it does so. 




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-
1001 am edt fri oct 16 2026

...gale warning in effect until 9 pm edt this evening...

.rest of today...north gales to 45 knots. a chance of showers by
late morning. waves 10 to 14 feet occasionally to 18 feet
building to 12 to 17 feet occasionally to 21 feet, then subsiding
to 10 to 14 feet occasionally to 18 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 3 to 6 feet
occasionally to 8 feet, then building to 4 to 7 feet occasionally
to 9 feet. 
.sunday...southwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. 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 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 161401
glfls 
expires:202610162000;;197084

open lake forecast for lake superior
national weather service marquette mi
1001 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 30.8 inch high moving through the plains today weakens to 30.6 
inches as it continues eastward. this weakening is expected to bring 
30.4 inch ridging over lake superior by this evening. 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 29.0 inches by 
the time it arrives at hudson bay on sunday. this low is expected to 
bring weak 30.0 inch troughing to northern lake superior throughout 
the day sunday. as the low continues east over hudson bay and 
weakens with time sunday night into monday afternoon, expect high 
pressure ridging of 30.3 inches to return to the upper great lakes 
by monday. the high pressure ridging strengthens to 30.4 inches over 
lake superior by tuesday as the now 30.5 inch parent high over 
northern ontario continues east into northern quebec, deepening to 
30.6 inches as it does so. 




lsz267-162000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt fri oct 16 2026

...gale warning in effect until 8 pm edt this evening...

.rest of today...north gales to 40 knots. a slight chance of
showers by late morning. waves 6 to 9 feet occasionally to
11 feet building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 9 to 12 feet occasionally to 15 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 4 to 7 feet occasionally to 9 feet. 
.saturday night...southwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday...southwest winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 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. 

$$