fzus61 kbuf 160802
glflo 
expires:202609161500;;535101

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt wed sep 16 2026

for waters beyond five nautical miles of shore on lake ontario

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 30.4 inch area of high pressure southeast of the lake this morning 
will settle off the mid-atlantic coastline this afternoon. this will 
allow for a weak cold front to slide across the lake today, stalling 
near the new york and pennsylvania state line tonight. a 30.2 inch 
area of low pressure riding along this stalled frontal boundary will 
lift this front back northward to near the lake's southern shoreline 
thursday afternoon, before the 30.2 inch surface low now across 
western new york thursday afternoon carries a cold front southeast 
of the lake thursday night. an area of surface high pressure 
averaging 30.2 inches will then build across the upper great lakes 
thursday, and then to new england saturday. following the departure 
of the surface high, a 29.9 inch surface low and warm front will 
near the lake from the ohio valley on sunday.


loz062-161500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt wed sep 16 2026

.today...west winds 10 knots or less becoming northwest. waves
1 foot or less. 
.tonight...northwest winds 10 knots or less becoming east. waves
1 foot or less. 
.thursday...northeast winds 10 knots or less becoming north. a
chance of showers. waves 1 foot or less. 
.thursday night...northwest winds 10 knots or less. waves 2 feet
or less. 
.friday...north winds 5 to 15 knots becoming east. waves 1 to
3 feet. 
.saturday...east winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers during the day, then showers likely
saturday night. waves 2 to 4 feet. 
.sunday...northeast winds 15 to 20 knots. a chance of showers
during the day. waves 3 to 5 feet. 

$$

fzus61 kbuf 160802
glflo 
expires:202609161500;;535102

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt wed sep 16 2026

for waters beyond five nautical miles of shore on lake ontario

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 30.4 inch area of high pressure southeast of the lake this morning 
will settle off the mid-atlantic coastline this afternoon. this will 
allow for a weak cold front to slide across the lake today, stalling 
near the new york and pennsylvania state line tonight. a 30.2 inch 
area of low pressure riding along this stalled frontal boundary will 
lift this front back northward to near the lake's southern shoreline 
thursday afternoon, before the 30.2 inch surface low now across 
western new york thursday afternoon carries a cold front southeast 
of the lake thursday night. an area of surface high pressure 
averaging 30.2 inches will then build across the upper great lakes 
thursday, and then to new england saturday. following the departure 
of the surface high, a 29.9 inch surface low and warm front will 
near the lake from the ohio valley on sunday.


loz063>065-161500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt wed sep 16 2026

.today...southwest winds 5 to 15 knots becoming west less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.tonight...northwest winds 10 knots or less becoming east. waves
1 foot or less. 
.thursday...east winds less than 10 knots becoming north. a
chance of showers. waves 1 foot or less. 
.thursday night...northwest winds 10 knots or less increasing to
10 to 15 knots. waves 2 feet or less. 
.friday...north winds 15 to 20 knots becoming east 10 to
15 knots. waves 1 to 3 feet. 
.saturday...east winds 5 to 15 knots. a chance of showers during
the day, then showers likely saturday night. waves 1 to 3 feet. 
.sunday...northeast winds 15 to 20 knots. showers likely during
the day. waves 1 to 3 feet building to 2 to 4 feet. 

$$

fzus61 kcle 160733
glfle 
expires:202609161415;;534144

open lake forecast for lake erie
national weather service cleveland oh
333 am edt wed sep 16 2026

for waters beyond five nautical miles of shore on lake erie

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 cold front settles across the ohio valley through thursday. low
pressure 30.20 will move along the front before moving southward 
as high pressure 30.20 builds in from the north friday into 
saturday.


lez164>168-161415-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
333 am edt wed sep 16 2026

.today...west winds 10 knots or less becoming northeast. showers
likely with a slight chance of thunderstorms this morning, then a
slight chance of showers and thunderstorms this afternoon. waves
2 feet or less. 
.tonight...northeast winds 5 to 10 knots becoming east. a slight
chance of showers and thunderstorms in the evening, then a chance
of showers with a slight chance of thunderstorms after midnight.
waves 1 foot or less. 
.thursday...east winds 5 to 10 knots becoming north. a chance of
showers in the morning. waves 1 foot or less. 
.thursday night...north winds 5 to 15 knots. waves 1 to 3 feet. 
.friday...northeast winds 10 to 15 knots becoming east. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...east winds 10 to 15 knots increasing to 15 to
20 knots. showers likely during the day, then showers saturday
night. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...northeast winds 15 to 25 knots becoming east. a chance
of showers. waves 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 160733
glfle 
expires:202609161415;;534145

open lake forecast for lake erie
national weather service cleveland oh
333 am edt wed sep 16 2026

for waters beyond five nautical miles of shore on lake erie

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 cold front settles across the ohio valley through thursday. low
pressure 30.20 will move along the front before moving southward 
as high pressure 30.20 builds in from the north friday into 
saturday.


lez061-169-161415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
333 am edt wed sep 16 2026

.today...southwest winds 10 knots or less becoming northeast.
showers likely with a slight chance of thunderstorms early, then
a chance of showers late this morning. a slight chance of showers
this afternoon. waves 2 feet or less. 
.tonight...northeast winds 10 knots or less. a slight chance of
showers early, then a slight chance of showers and thunderstorms
late in the evening. a chance of showers with a slight chance of
thunderstorms after midnight. waves 1 foot or less. 
.thursday...northeast winds 5 to 10 knots becoming north. a
chance of showers in the morning. waves 1 foot or less. 
.thursday night...north winds 5 to 10 knots. waves 2 feet or
less. 
.friday...north winds 5 to 15 knots becoming east. waves 2 feet
or less. 
.saturday...east winds 5 to 15 knots. showers. waves 1 to 3 feet.
.sunday...northeast winds 15 to 20 knots. a chance of showers
during the day. waves 1 to 3 feet building to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 160733
glfle 
expires:202609161415;;534143

open lake forecast for lake erie
national weather service cleveland oh
333 am edt wed sep 16 2026

for waters beyond five nautical miles of shore on lake erie

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 cold front settles across the ohio valley through thursday. low
pressure 30.20 will move along the front before moving southward 
as high pressure 30.20 builds in from the north friday into 
saturday.


lez162-163-161415-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
333 am edt wed sep 16 2026

.today...north winds 5 to 10 knots becoming northeast. showers
likely with a slight chance of thunderstorms early, then a chance
of showers late this morning. a chance of showers with a slight
chance of thunderstorms this afternoon. waves 1 foot or less. 
.tonight...northeast winds 5 to 10 knots becoming east. a chance
of showers with a slight chance of thunderstorms in the evening,
then showers likely with a slight chance of thunderstorms after
midnight. a chance of showers with a slight chance of
thunderstorms late. waves 1 foot or less. 
.thursday...northeast winds 5 to 10 knots becoming north. a
chance of showers in the morning. waves 1 foot or less. 
.thursday night...north winds 5 to 15 knots becoming northeast.
waves 2 feet or less. 
.friday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 
.saturday...east winds 10 to 15 knots becoming northeast.
showers. waves 1 to 2 feet. 
.sunday...northeast winds 15 to 20 knots. a chance of showers.
waves 1 to 3 feet building to 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 160702
glfsc 
expires:202609161515;;533114

lake st clair forecast
national weather service detroit/pontiac mi
302 am edt wed sep 16 2026

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 weak cold front sinks across the great lakes early
this morning, with high pressure then passing across northern
ontario the rest of the day. the cold front stalls near the
southern great lakes into thursday. another cold front passes
southward through the region thursday night into early friday.


lcz460-161515-
lake st clair-
302 am edt wed sep 16 2026

.today...north winds 5 to 10 knots becoming northeast 10 to 15 knots
late in the morning...then diminishing to 5 to 10 knots in the
afternoon. mostly cloudy. waves 2 feet or less.
.tonight...northeast winds 10 to 15 knots diminishing to 5 to 10
knots in the late evening and overnight. partly cloudy. a chance of
light showers in the late evening and overnight. waves 2 feet or
less.
.thursday...north winds 5 to 10 knots. partly sunny. waves 2 feet or
less.
.thursday night...north winds 5 to 10 knots. partly cloudy. waves 2
feet or less.
.friday...north winds 10 to 15 knots becoming northeast 5 to 10
knots in the afternoon...then increasing to 10 to 15 knots in the
evening. mostly sunny in the morning becoming partly cloudy. waves 2
feet or less.
.saturday...east winds 15 to 20 knots. showers. waves 2 feet or
less.
.sunday...northeast winds 15 to 20 knots. mostly cloudy with
showers. waves 1 to 3 feet.

$$

fzus63 kdtx 160702
glflh 
expires:202609161515;;533112

open lake forecast for lake huron
national weather service detroit/pontiac mi
302 am edt wed sep 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...a weak cold front sinks across the great lakes early
this morning, with high pressure then passing across northern
ontario the rest of the day. the cold front stalls near the
southern great lakes into thursday. another cold front passes
southward through the region thursday night into early friday.


lhz462>464-161515-
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-
302 am edt wed sep 16 2026

.today...north winds 10 to 15 knots. waves 2 to 4 feet subsiding
to 1 to 3 feet in the afternoon. 
.tonight...north winds 10 to 15 knots becoming northeast 5 to
10 knots in the late evening and overnight. waves 1 to 3 feet. 
.thursday...north winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...north winds 5 to 10 knots increasing to 10 to
15 knots after midnight. waves 2 feet or less building to 2 to
4 feet after midnight. 
.friday...north winds 10 to 15 knots veering to the east late in
the evening. a chance of showers late in the evening. waves 2 to
4 feet subsiding to 1 to 3 feet late in the afternoon. 
.saturday...southeast winds 10 to 15 knots increasing to 15 to
20 knots early in the evening...then becoming east 10 to 15 knots
by midnight. showers...then a chance of showers by midnight.
waves 2 to 4 feet. 
.sunday...northeast winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers early in the morning. waves 2 to
4 feet. 


$$

fzus63 kdtx 160702
glflh 
expires:202609161515;;533110

open lake forecast for lake huron
national weather service detroit/pontiac mi
302 am edt wed sep 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...a weak cold front sinks across the great lakes early
this morning, with high pressure then passing across northern
ontario the rest of the day. the cold front stalls near the
southern great lakes into thursday. another cold front passes
southward through the region thursday night into early friday.


lhz361-161515-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
302 am edt wed sep 16 2026

.today...northwest winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.thursday...light and variable winds. waves 2 feet or less. 
.thursday night...west winds 5 to 10 knots becoming northwest
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet. 
.friday...north winds 5 to 10 knots veering to the northeast late
in the morning...then becoming light and variable late in the
afternoon becoming southeast 5 to 10 knots late in the evening. a
chance of showers late in the evening. waves 2 feet or less. 
.saturday...east winds 10 to 15 knots. a chance of showers. waves
2 to 4 feet. 
.sunday...northeast winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then increasing to 10 to 15 knots
by midnight. waves 1 to 3 feet building to 2 to 4 feet by
midnight. 


$$

fzus63 kdtx 160702
glflh 
expires:202609161515;;533111

open lake forecast for lake huron
national weather service detroit/pontiac mi
302 am edt wed sep 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...a weak cold front sinks across the great lakes early
this morning, with high pressure then passing across northern
ontario the rest of the day. the cold front stalls near the
southern great lakes into thursday. another cold front passes
southward through the region thursday night into early friday.


lhz362-363-161515-
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-
302 am edt wed sep 16 2026

.today...north winds 10 to 15 knots decreasing to 5 to 10 knots
in the afternoon. waves 1 to 3 feet. 
.tonight...north winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.thursday...light and variable winds. waves 2 feet or less. 
.thursday night...light and variable winds becoming northwest
5 to 10 knots by midnight...then increasing to 10 to 15 knots
after midnight. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.friday...north winds 10 to 15 knots becoming northeast 5 to
10 knots. a chance of showers late in the evening. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.saturday...southeast winds 10 to 15 knots. a chance of showers
early in the morning...then showers likely until early evening. a
chance of showers by midnight. waves 1 to 3 feet building to 2 to
4 feet. 
.sunday...northeast winds 10 to 15 knots increasing to 15 to
20 knots by midnight. waves 3 to 5 feet. 


$$

fzus63 kmkx 160809
glflm 
expires:202609161530;;535741

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 am cdt wed sep 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...

high pressure around 30.4 inches will track east across southern
ontario through today, veering winds northeast by mid-morning. a
frontal feature stalled over the southern tip of the lake may
allow for isolated thunderstorms through today. predominantly 
light and variable winds expected late tonight through thursday as
high pressure continues to build eastward and additional
reinforcing high pressure builds back in across the canadian
prairies.

breezy east to northeast winds may then develop friday into this 
weekend as low pressure around 29.8 inches develops in the 
central plains and lifts into the upper midwest by saturday.
gusty southeasterly winds develop saturday as low pressure
approaches, crossing the southern portion of the lake as high
pressure continues across ontario, bringing continued generally
easterly winds and perhaps gales at times throughout the day.
saturday night, winds turn northeasterly, continuing through
sunday. gale potential diminishes late saturday night, although
gusts around 30 kt are possible through sunday for the southern
two-thirds.


lmz080-669-671-673-675-777-779-870-872-874-876-878-161530-
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-
309 am cdt wed sep 16 2026

sheboygan wi to pentwater mi south...

.today...northeast winds 10 to 20 kt diminishing to 10 to 15 kt.
chance of showers this morning, then slight chance of showers and
thunderstorms this afternoon. waves 3 to 5 ft subsiding to 2 to
4 ft. 
.tonight...northeast winds 10 to 15 kt becoming east late in the
evening, then becoming southeast after midnight diminishing to
5 to 10 kt late. slight chance of showers and thunderstorms in
the evening, then chance of showers and slight chance of
thunderstorms overnight. waves 1 to 3 ft. 
.thursday...east winds 5 to 10 kt becoming northeast late in the
morning, then becoming north 10 to 15 kt early in the afternoon
increasing to 10 to 20 kt late. chance of showers in the morning.
waves 1 to 2 ft. 
.thursday night...north winds 10 to 20 kt becoming northeast
10 to 15 kt. waves 1 to 3 ft. 
.friday...east winds 10 to 20 kt. waves 2 to 4 ft. 
.friday night...east winds 15 to 25 kt becoming southeast to
30 kt. showers with a chance of thunderstorms. waves 4 to 6 ft
occasionally to 8 ft building to 7 to 10 ft occasionally to
13 ft. 
.saturday...southeast winds to 30 kt. showers with a chance of
thunderstorms. waves 8 to 11 ft occasionally to 14 ft subsiding
to 7 to 10 ft occasionally to 13 ft. 
.sunday...northeast winds to 30 kt. chance of showers. waves 6 to
9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 160809
glflm 
expires:202609161530;;535740

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 am cdt wed sep 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...

high pressure around 30.4 inches will track east across southern
ontario through today, veering winds northeast by mid-morning. a
frontal feature stalled over the southern tip of the lake may
allow for isolated thunderstorms through today. predominantly 
light and variable winds expected late tonight through thursday as
high pressure continues to build eastward and additional
reinforcing high pressure builds back in across the canadian
prairies.

breezy east to northeast winds may then develop friday into this 
weekend as low pressure around 29.8 inches develops in the 
central plains and lifts into the upper midwest by saturday.
gusty southeasterly winds develop saturday as low pressure
approaches, crossing the southern portion of the lake as high
pressure continues across ontario, bringing continued generally
easterly winds and perhaps gales at times throughout the day.
saturday night, winds turn northeasterly, continuing through
sunday. gale potential diminishes late saturday night, although
gusts around 30 kt are possible through sunday for the southern
two-thirds.


lmz261-362-364-366-563-565-567-868-161530-
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-
309 am cdt wed sep 16 2026

sheboygan wi to pentwater mi north...

.today...north winds 10 to 20 kt becoming northeast 10 to 15 kt.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.tonight...northeast winds 10 to 15 kt becoming southeast. slight
chance of showers overnight. waves 1 to 2 ft. 
.thursday...southeast winds 5 to 10 kt backing to northeast late
in the morning, then becoming north 10 to 15 kt early in the
afternoon becoming northwest 10 to 20 kt late. waves 1 to 2 ft. 
.thursday night...north winds 10 to 20 kt becoming northeast
10 to 15 kt. waves 1 to 2 ft. 
.friday...northeast winds 10 to 15 kt becoming east. waves 1 to
3 ft. 
.friday night...east winds 15 to 25 kt becoming southeast to
30 kt. showers likely. waves 3 to 5 ft building to 6 to 9 ft
occasionally to 12 ft. 
.saturday...southeast winds to 30 kt becoming east. chance of
showers. waves 7 to 10 ft occasionally to 13 ft. 
.sunday...northeast winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft.  

$$

fzus63 kmqt 160801
glfls 
expires:202609162000;;535003

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed sep 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...

this morning, 30.3 inch high pressure west of lake superior builds 
to 30.4 inches as it moves over the lake. the high weakens to 30.3 
inches over quebec early thursday morning as 29.9 inch low pressure 
moves slong the western hudson bay shoreline. this will pass a weak 
30.2 inch trough over lake superior thursday. meanwhile, 30.4 inch 
high pressure develops over north dakota and manitoba. this high 
moves over northern ontario and lake superior by friday morning as 
the low pushes into quebec and another 29.9 inch low develops over 
south dakota and nebraska. the high weakens to 30.3 inches as it 
moves to the quebec/ontario line saturday morning as the low shifts 
to the upper mississippi valley. by sunday morning, another 30.3 
inch high will move over northwestern ontario as 29.9 inch low 
pressure extends across the southern great lakes basin. the high 
shifts to northeastern ontario monday morning.





lsz162-162000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt wed sep 16 2026 /301 am cdt wed sep 16 2026/

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...northeast winds 5 to 15 knots veering east in the
afternoon. a slight chance of showers by mid afternoon. waves
calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots backing northwest late.
a slight chance of showers. waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight. waves calm to 2 feet. 
.friday...east winds 15 to 25 knots. a chance of showers. waves
building to 1 to 3 feet. 
.friday night...east winds 15 to 25 knots. waves building to 2 to
4 feet. 
.saturday...northeast winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.sunday...northeast gales to 35 knots becoming east 20 to
30 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202609162000;;535004

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed sep 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...

this morning, 30.3 inch high pressure west of lake superior builds 
to 30.4 inches as it moves over the lake. the high weakens to 30.3 
inches over quebec early thursday morning as 29.9 inch low pressure 
moves slong the western hudson bay shoreline. this will pass a weak 
30.2 inch trough over lake superior thursday. meanwhile, 30.4 inch 
high pressure develops over north dakota and manitoba. this high 
moves over northern ontario and lake superior by friday morning as 
the low pushes into quebec and another 29.9 inch low develops over 
south dakota and nebraska. the high weakens to 30.3 inches as it 
moves to the quebec/ontario line saturday morning as the low shifts 
to the upper mississippi valley. by sunday morning, another 30.3 
inch high will move over northwestern ontario as 29.9 inch low 
pressure extends across the southern great lakes basin. the high 
shifts to northeastern ontario monday morning.





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-
401 am edt wed sep 16 2026

.early this morning...northwest winds 5 to 15 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.today...north winds 5 to 15 knots becoming northeast less than
10 knots in the afternoon, then becoming east 5 to 15 knots late.
waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering southeast after
midnight, then veering southwest late. a slight chance of
showers. waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves 1 to 3 feet. 
.friday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...east winds 15 to 25 knots becoming northeast 10 to
20 knots. waves calm to 2 feet. 
.sunday...northeast winds 20 to 30 knots veering east. waves
building to 2 to 4 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202609162000;;535005

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed sep 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...

this morning, 30.3 inch high pressure west of lake superior builds 
to 30.4 inches as it moves over the lake. the high weakens to 30.3 
inches over quebec early thursday morning as 29.9 inch low pressure 
moves slong the western hudson bay shoreline. this will pass a weak 
30.2 inch trough over lake superior thursday. meanwhile, 30.4 inch 
high pressure develops over north dakota and manitoba. this high 
moves over northern ontario and lake superior by friday morning as 
the low pushes into quebec and another 29.9 inch low develops over 
south dakota and nebraska. the high weakens to 30.3 inches as it 
moves to the quebec/ontario line saturday morning as the low shifts 
to the upper mississippi valley. by sunday morning, another 30.3 
inch high will move over northwestern ontario as 29.9 inch low 
pressure extends across the southern great lakes basin. the high 
shifts to northeastern ontario monday morning.





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

.early this morning...northwest winds 5 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.today...north winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then veering southeast late. waves
subsiding to calm to 2 feet. 
.tonight...southeast winds less than 10 knots becoming south 5 to
15 knots after midnight. a chance of showers. waves calm to
2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...east winds 5 to 15 knots backing northeast. waves
calm to 2 feet. 
.sunday...northeast winds 10 to 20 knots veering east. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202609162000;;535006

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed sep 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...

this morning, 30.3 inch high pressure west of lake superior builds 
to 30.4 inches as it moves over the lake. the high weakens to 30.3 
inches over quebec early thursday morning as 29.9 inch low pressure 
moves slong the western hudson bay shoreline. this will pass a weak 
30.2 inch trough over lake superior thursday. meanwhile, 30.4 inch 
high pressure develops over north dakota and manitoba. this high 
moves over northern ontario and lake superior by friday morning as 
the low pushes into quebec and another 29.9 inch low develops over 
south dakota and nebraska. the high weakens to 30.3 inches as it 
moves to the quebec/ontario line saturday morning as the low shifts 
to the upper mississippi valley. by sunday morning, another 30.3 
inch high will move over northwestern ontario as 29.9 inch low 
pressure extends across the southern great lakes basin. the high 
shifts to northeastern ontario monday morning.





lsz265-162000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt wed sep 16 2026

.early this morning...northwest winds 10 to 20 knots. waves calm
to 2 feet. 
.today...northwest winds 5 to 15 knots veering northeast in the
afternoon, then veering east late. waves calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots veering south late. a
slight chance of showers. waves calm to 2 feet. 
.thursday...west winds 10 to 20 knots veering northwest late.
waves calm to 2 feet. 
.thursday night...north winds 10 to 20 knots becoming northeast
15 to 25 knots after midnight. waves building to 1 to 3 feet. 
.friday...east winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.friday night...southeast winds 10 to 20 knots. waves calm to
2 feet. 
.saturday...east winds 15 to 25 knots becoming northeast 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.sunday...northeast winds 15 to 25 knots veering east. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202609162000;;535007

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed sep 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...

this morning, 30.3 inch high pressure west of lake superior builds 
to 30.4 inches as it moves over the lake. the high weakens to 30.3 
inches over quebec early thursday morning as 29.9 inch low pressure 
moves slong the western hudson bay shoreline. this will pass a weak 
30.2 inch trough over lake superior thursday. meanwhile, 30.4 inch 
high pressure develops over north dakota and manitoba. this high 
moves over northern ontario and lake superior by friday morning as 
the low pushes into quebec and another 29.9 inch low develops over 
south dakota and nebraska. the high weakens to 30.3 inches as it 
moves to the quebec/ontario line saturday morning as the low shifts 
to the upper mississippi valley. by sunday morning, another 30.3 
inch high will move over northwestern ontario as 29.9 inch low 
pressure extends across the southern great lakes basin. the high 
shifts to northeastern ontario monday morning.





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-
401 am edt wed sep 16 2026

.early this morning...northwest winds 10 to 20 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.today...north winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon, then veering northeast late. waves subsiding to
calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots veering south after
midnight. a slight chance of showers. waves calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots veering northwest
late. waves calm to 2 feet. 
.thursday night...north winds 10 to 20 knots becoming northeast
15 to 25 knots after midnight. waves building to 1 to 3 feet. 
.friday...east winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. waves subsiding to calm to 2 feet. 
.friday night...east winds 5 to 15 knots becoming southeast 10 to
20 knots after midnight. waves calm to 2 feet. 
.saturday...east winds 10 to 20 knots backing northeast. waves
calm to 2 feet. 
.sunday...northeast winds 10 to 20 knots veering east. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202609162000;;535008

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed sep 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...

this morning, 30.3 inch high pressure west of lake superior builds 
to 30.4 inches as it moves over the lake. the high weakens to 30.3 
inches over quebec early thursday morning as 29.9 inch low pressure 
moves slong the western hudson bay shoreline. this will pass a weak 
30.2 inch trough over lake superior thursday. meanwhile, 30.4 inch 
high pressure develops over north dakota and manitoba. this high 
moves over northern ontario and lake superior by friday morning as 
the low pushes into quebec and another 29.9 inch low develops over 
south dakota and nebraska. the high weakens to 30.3 inches as it 
moves to the quebec/ontario line saturday morning as the low shifts 
to the upper mississippi valley. by sunday morning, another 30.3 
inch high will move over northwestern ontario as 29.9 inch low 
pressure extends across the southern great lakes basin. the high 
shifts to northeastern ontario monday morning.





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

.early this morning...northwest winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.today...northwest winds 10 to 20 knots becoming north 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering south after midnight.
a slight chance of showers. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots becoming west 10 to
20 knots in the afternoon, then veering northwest late. waves
calm to 2 feet. 
.thursday night...northwest winds 10 to 20 knots veering north
after midnight. waves building to 1 to 3 feet. 
.friday...east winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.friday night...east winds 5 to 15 knots becoming southeast 10 to
20 knots after midnight. waves calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots backing northeast.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots becoming east 10 to
20 knots. waves building to 1 to 3 feet. 

$$