fzus61 kbuf 091402
glflo 
expires:202607092100;;678025

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt thu jul 9 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 30.0 inch high will move off the mid atlantic 
coast today, giving way to a weak cold front that will cross the 
lake tonight through early friday. another 30.0 inch high will then 
build across the upper great lakes friday and the lower great lakes 
over the weekend, before drifting off the new england coast monday.


loz063>065-092100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt thu jul 9 2026

.this afternoon...southwest winds 5 to 15 knots becoming
northwest. a chance of showers and thunderstorms late. waves
1 foot or less. 
.tonight...northwest winds 5 to 15 knots. a chance of showers and
thunderstorms in the evening, then a chance of showers after
midnight. waves 2 feet or less. 
.friday...northwest winds 10 knots or less. a chance of showers
in the morning. waves 1 foot or less. 
.friday night...northwest winds 10 knots or less becoming
northeast. waves 1 foot or less. 
.saturday...northeast winds 10 knots or less. waves 2 feet or
less. 
.sunday...northeast winds 10 knots or less becoming south. waves
1 foot or less. 
.monday...southwest winds 5 to 15 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 091402
glflo 
expires:202607092100;;678024

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt thu jul 9 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 30.0 inch high will move off the mid atlantic 
coast today, giving way to a weak cold front that will cross the 
lake tonight through early friday. another 30.0 inch high will then 
build across the upper great lakes friday and the lower great lakes 
over the weekend, before drifting off the new england coast monday.


loz062-092100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt thu jul 9 2026

.this afternoon...southwest winds 5 to 10 knots becoming northwest
and increasing to 15 to 20 knots. a chance of showers and
thunderstorms early. showers with a chance of
thunderstorms late. waves 1 foot or less. 
.tonight...west winds 5 to 15 knots becoming northwest 10 knots
or less. showers with a chance of thunderstorms early, then a
chance of showers and thunderstorms late in the evening. a chance
of showers after midnight. waves 2 feet or less. 
.friday...north winds less than 10 knots. waves 1 foot or less. 
.friday night...northwest winds 10 knots or less becoming
northeast. waves 1 foot or less. 
.saturday...northeast winds 10 knots or less. waves 1 foot or
less. 
.sunday...northeast winds less than 10 knots becoming south.
waves 1 foot or less. 
.monday...southwest winds 10 knots or less increasing to 10 to
15 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 091324
glfle 
expires:202607092015;;676979

open lake forecast for lake erie
national weather service cleveland oh
924 am edt thu jul 9 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...
high pressure 30.10 inches will linger over lake erie this morning before
a cold front drops south across the lake tonight into friday. 
high pressure 30.10 inches returns this weekend and will persist 
into early next week.


lez162>164-092015-
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-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
924 am edt thu jul 9 2026

.this afternoon...southwest winds 5 to 10 knots becoming west. a
slight chance of showers and thunderstorms late. waves 1 foot or
less. 
.tonight...west winds 5 to 10 knots. showers likely with a chance
of thunderstorms early, then a chance of showers and
thunderstorms. showers likely with a chance of thunderstorms
late. waves 1 foot or less. 
.friday...west winds 10 knots or less becoming north. showers
likely with a chance of thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon. waves
1 foot or less. 
.friday night...north winds 5 to 10 knots becoming northeast. a
chance of showers overnight. waves 1 foot or less. 
.saturday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.sunday...east winds 5 to 10 knots. waves 2 feet or less. 
.monday...northeast winds 10 knots or less becoming southwest.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 091324
glfle 
expires:202607092015;;676980

open lake forecast for lake erie
national weather service cleveland oh
924 am edt thu jul 9 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...
high pressure 30.10 inches will linger over lake erie this morning before
a cold front drops south across the lake tonight into friday. 
high pressure 30.10 inches returns this weekend and will persist 
into early next week.


lez061-165>169-092015-
ripley to buffalo ny extending from 5nm 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-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
924 am edt thu jul 9 2026

.this afternoon...southwest winds 5 to 15 knots becoming west.
waves 2 feet or less. 
.tonight...west winds 5 to 10 knots. a slight chance of showers
and thunderstorms early, then a chance of showers and
thunderstorms. a chance of showers with a slight chance of
thunderstorms late. waves 2 feet or less. 
.friday...west winds 10 knots or less becoming northwest. a
chance of showers and thunderstorms in the morning, then a chance
of showers in the afternoon. waves 1 foot or less. 
.friday night...northwest winds 10 knots or less becoming
northeast. waves 1 foot or less. 
.saturday...northeast winds 5 to 15 knots becoming east. waves
2 feet or less. 
.sunday...east winds 5 to 10 knots becoming southeast. waves
2 feet or less. 
.monday...south winds 10 knots or less becoming southwest. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 091356
glfsc 
expires:202607092200;;677831

lake st clair forecast
national weather service detroit/pontiac mi
956 am edt thu jul 9 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 low pressure system, 29.70 inches, and trailing cold
front will trek through the great lakes region today, bringing
the potential for showers and isolated thunderstorms. a high
pressure system, 30.20 inches, is then expected to develop over
the region and persist throughout the weekend.


lcz460-092200-
lake st clair-
956 am edt thu jul 9 2026

.rest of today...southwest winds 5 to 10 knots. mostly sunny in the
late morning and early afternoon becoming mostly cloudy. a chance of
showers and thunderstorms early in the afternoon. showers likely and
a chance of thunderstorms late in the afternoon. waves 2 feet or
less.
.tonight...west winds 5 to 10 knots backing to the southeast late in
the evening...then veering to the southwest after midnight veering
to the north early in the morning. mostly cloudy becoming partly
cloudy by midnight becoming mostly cloudy. showers likely and a
chance of thunderstorms in the evening...then a chance of showers
after midnight. waves 2 feet or less.
.friday...north winds 5 to 10 knots. partly sunny. a chance of light
showers in the late morning and early afternoon. waves 2 feet or
less.
.friday night...northeast winds 10 to 15 knots becoming north 5 to
10 knots after midnight. mostly clear. waves 2 feet or less.
.saturday...northeast winds 5 to 10 knots increasing to 10 to 15
knots in the evening. mostly clear. waves 2 feet or less.
.sunday...east winds 5 to 10 knots. clear. waves 2 feet or less.
.monday...south winds 5 to 10 knots. clear. waves 2 feet or less.

$$

fzus63 kdtx 091352
glflh 
expires:202607092200;;677714

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am edt thu jul 9 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a low pressure system, 29.70 inches, and trailing cold
front will trek through the great lakes region today, bringing
the potential for rain showers and isolated thunderstorms. a high
pressure system, 30.20 inches, is then expected to develop over
the region and persist throughout the weekend.


lhz462>464-092200-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
952 am edt thu jul 9 2026

.rest of today...light and variable winds becoming north 5 to
10 knots late in the afternoon. a chance of showers late in the
morning...then showers likely and a chance of thunderstorms in
the afternoon. waves 2 feet or less. 
.tonight...light and variable winds becoming north 5 to 10 knots
after midnight. a chance of showers and thunderstorms in the
evening. waves 2 feet or less. 
.friday...north winds 5 to 10 knots. waves 2 feet or less. 
.friday night...north winds 5 to 10 knots. waves 1 to 3 feet. 
.saturday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.sunday...light and variable winds becoming east 5 to 10 knots .
waves 2 feet or less. 
.monday...south winds 5 to 10 knots becoming southwest 10 to
15 knots by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 091352
glflh 
expires:202607092200;;677712

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am edt thu jul 9 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a low pressure system, 29.70 inches, and trailing cold
front will trek through the great lakes region today, bringing
the potential for rain showers and isolated thunderstorms. a high
pressure system, 30.20 inches, is then expected to develop over
the region and persist throughout the weekend.


lhz361-092200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
952 am edt thu jul 9 2026

.rest of today...light and variable winds. a chance of showers
late in the morning. waves 2 feet or less. 
.tonight...light and variable winds becoming northwest 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.friday...north winds 5 to 10 knots early in the morning becoming
light and variable. waves 2 feet or less. 
.friday night...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds becoming southeast 5 to
10 knots. waves 2 feet or less. 
.sunday...south winds 5 to 10 knots. waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots becoming west 10 to
15 knots. waves 1 to 3 feet building to 3 to 5 feet by midnight. 


$$

fzus63 kdtx 091352
glflh 
expires:202607092200;;677713

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am edt thu jul 9 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a low pressure system, 29.70 inches, and trailing cold
front will trek through the great lakes region today, bringing
the potential for rain showers and isolated thunderstorms. a high
pressure system, 30.20 inches, is then expected to develop over
the region and persist throughout the weekend.


lhz362-363-092200-
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-
952 am edt thu jul 9 2026

.rest of today...light and variable winds. showers late in the
morning...then a chance of showers in the afternoon. waves 2 feet
or less. 
.tonight...light and variable winds becoming north 5 to 10 knots
early in the morning. waves 2 feet or less. 
.friday...light and variable winds. waves 2 feet or less. 
.friday night...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 
.sunday...light and variable winds becoming southeast 5 to
10 knots. waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots becoming south 10 to
15 knots . waves 1 to 3 feet. 


$$

fzus63 kmkx 091403
glflm 
expires:202607092130;;678054

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt thu jul 9 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...

light to modest north winds over the northern half of the lake
will slowly move south today, shifting winds in the southern half
of the lake from southerly to northerly. some fog may develop at 
times during this period, with patchy dense fog possible, as
relatively warm, moist air remains over the cooler lake waters. 
winds will remain north to northeast on friday, as high pressure 
around 30.0 inches builds into the the region from the north. the 
high should shift southeast over the weekend, which should 
continue to bring light to modest winds.


lmz261-362-364-366-563-565-567-868-092130-
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-
903 am cdt thu jul 9 2026

sheboygan wi to pentwater mi north...

.rest of today...north winds 10 to 15 kt. patchy fog through mid 
morning. scattered showers and slight chance of thunderstorms 
through mid morning, then slight chance of showers this afternoon.
waves 1 to 2 ft. 
.tonight...north winds 10 to 15 kt diminishing to 5 to 10 kt.
patchy fog overnight. waves 1 to 2 ft. 
.friday...north winds 5 to 10 kt increasing to 10 to 20 kt.
patchy fog in the morning. waves 1 to 3 ft. 
.friday night...north winds 10 to 20 kt becoming east 5 to 10 kt
overnight. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.saturday...east winds 5 to 10 kt becoming northeast 10 to 20 kt
in the afternoon. waves 1 ft or less. 
.saturday night...east winds 10 to 15 kt veering to south 5 to
10 kt. waves 1 ft or less. 
.sunday...southwest winds 10 to 20 kt. waves 1 to 2 ft. 
.monday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft.  

$$

fzus63 kmkx 091403
glflm 
expires:202607092130;;678055

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt thu jul 9 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...

light to modest north winds over the northern half of the lake
will slowly move south today, shifting winds in the southern half
of the lake from southerly to northerly. some fog may develop at 
times during this period, with patchy dense fog possible, as
relatively warm, moist air remains over the cooler lake waters. 
winds will remain north to northeast on friday, as high pressure 
around 30.0 inches builds into the the region from the north. the 
high should shift southeast over the weekend, which should 
continue to bring light to modest winds.


lmz080-669-671-673-675-777-779-870-872-874-876-878-092130-
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-
903 am cdt thu jul 9 2026

sheboygan wi to pentwater mi south...

.rest of today...south to southwest winds 10 to 15 kt shifting  
north in the afternoon. scattered showers and isolated
thunderstorms. waves 1 to 2 ft.
.tonight...north winds 10 to 15 kt diminishing to 5 to 10 kt.
slight chance of showers and thunderstorms in the evening. patchy
fog. waves 1 to 2 ft. 
.friday...north winds 10 to 15 kt increasing to 10 to 20 kt.
patchy fog in the morning. waves 1 to 3 ft building to 2 to 4 ft.
.friday night...north winds 10 to 20 kt becoming northeast 10 to
15 kt. waves 2 to 4 ft. 
.saturday...northeast winds 5 to 10 kt becoming north 10 to 20 kt
in the afternoon. waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 15 kt becoming east.
waves 1 to 2 ft. 
.sunday...southeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 ft or less. 
.monday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmqt 091707 aaa
glfls 
expires:202607100115;;684043

open lake forecast for lake superior...updated
national weather service marquette mi
107 pm edt thu jul 9 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... 

weak troughing of 29.9 inches over lake superior this afternoon will 
give way to weak high pressure of 30.0 inches extending from hudson 
bay and northern ontario tonight and friday. high pressure builds to 
30.1 to 30.2 inches over the lake this weekend as the high shifts 
south to the lower great lakes through sunday. a strong low of 
around 29.3 inches looks to cross into hudson bay early next week.


lsz267-100115-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
107 pm edt thu jul 9 2026

...dense fog advisory in effect until 4 pm edt this afternoon...

.rest of today...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...northwest winds 5 to 15 knots. patchy fog through
midnight, then areas of dense fog after midnight. waves calm to
2 feet. 
.friday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots backing southeast
after midnight. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots. waves calm to 2 feet. 
.monday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 091707 aaa
glfls 
expires:202607100115;;684038

open lake forecast for lake superior...updated
national weather service marquette mi
107 pm edt thu jul 9 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... 

weak troughing of 29.9 inches over lake superior this afternoon will 
give way to weak high pressure of 30.0 inches extending from hudson 
bay and northern ontario tonight and friday. high pressure builds to 
30.1 to 30.2 inches over the lake this weekend as the high shifts 
south to the lower great lakes through sunday. a strong low of 
around 29.3 inches looks to cross into hudson bay early next week.


lsz162-100115-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
107 pm edt thu jul 9 2026 /1207 pm cdt thu jul 9 2026/

.rest of today...north winds 5 to 15 knots. waves calm to 2 feet.
.tonight...north winds less than 10 knots. patchy fog. waves calm
to 2 feet. 
.friday...north winds less than 10 knots becoming east 5 to
15 knots in the afternoon, then backing northeast late. a slight
chance of showers by mid afternoon. waves calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots diminishing to less
than 10 knots after midnight. a slight chance of showers and
thunderstorms. waves calm to 2 feet. 
.saturday...east winds less than 10 knots becoming north 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...northeast winds less than 10 knots backing
north after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 091707 aaa
glfls 
expires:202607100115;;684039

open lake forecast for lake superior...updated
national weather service marquette mi
107 pm edt thu jul 9 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... 

weak troughing of 29.9 inches over lake superior this afternoon will 
give way to weak high pressure of 30.0 inches extending from hudson 
bay and northern ontario tonight and friday. high pressure builds to 
30.1 to 30.2 inches over the lake this weekend as the high shifts 
south to the lower great lakes through sunday. a strong low of 
around 29.3 inches looks to cross into hudson bay early next week.


lsz263-100115-
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-
107 pm edt thu jul 9 2026

.rest of today...northeast winds 5 to 15 knots diminishing to
less than 10 knots late. waves calm to 2 feet. 
.tonight...north winds less than 10 knots backing west after
midnight, then backing east late. patchy fog after midnight.
waves calm to 2 feet. 
.friday...east winds less than 10 knots backing northeast in the
afternoon, then becoming east 5 to 15 knots late. waves calm to
2 feet. 
.friday night...east winds 5 to 15 knots backing northeast after
midnight. a slight chance of showers and thunderstorms. waves
calm to 2 feet. 
.saturday...south winds less than 10 knots backing east by mid
afternoon. waves calm to 2 feet. 
.saturday night...east winds less than 10 knots becoming
southwest 5 to 15 knots after midnight. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots. waves building to 2 to
4 feet. 
.monday...southwest winds 20 to 30 knots. waves building to 3 to
6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 091707 aaa
glfls 
expires:202607100115;;684040

open lake forecast for lake superior...updated
national weather service marquette mi
107 pm edt thu jul 9 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... 

weak troughing of 29.9 inches over lake superior this afternoon will 
give way to weak high pressure of 30.0 inches extending from hudson 
bay and northern ontario tonight and friday. high pressure builds to 
30.1 to 30.2 inches over the lake this weekend as the high shifts 
south to the lower great lakes through sunday. a strong low of 
around 29.3 inches looks to cross into hudson bay early next week.


lsz264-100115-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
107 pm edt thu jul 9 2026

...dense fog advisory in effect until 4 pm edt this afternoon...

.rest of today...west winds less than 10 knots. patchy fog. waves
calm to 2 feet. 
.tonight...west winds less than 10 knots veering northwest after
midnight, then veering northeast late. patchy fog after midnight.
waves calm to 2 feet. 
.friday...southeast winds less than 10 knots increasing to 5 to
15 knots late. waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots. a slight chance of
showers after midnight. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots diminishing to less
than 10 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...southeast winds less than 10 knots veering
south after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 2 to 4 feet. 
.monday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 091707 aaa
glfls 
expires:202607100115;;684041

open lake forecast for lake superior...updated
national weather service marquette mi
107 pm edt thu jul 9 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... 

weak troughing of 29.9 inches over lake superior this afternoon will 
give way to weak high pressure of 30.0 inches extending from hudson 
bay and northern ontario tonight and friday. high pressure builds to 
30.1 to 30.2 inches over the lake this weekend as the high shifts 
south to the lower great lakes through sunday. a strong low of 
around 29.3 inches looks to cross into hudson bay early next week.


lsz265-100115-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
107 pm edt thu jul 9 2026

...dense fog advisory in effect until 4 pm edt this afternoon...

.rest of today...northeast winds 5 to 15 knots veering east late.
waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots veering north late. patchy
fog after midnight. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots veering east in the
afternoon. waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a slight chance of showers after
midnight. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. a slight chance of showers through
early afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots becoming southwest 10 to
20 knots. waves building to 1 to 3 feet. 
.monday...west winds 10 to 20 knots becoming southwest 20 to
30 knots. waves subsiding to calm to 2 feet, then building to
3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 091707 aaa
glfls 
expires:202607100115;;684042

open lake forecast for lake superior...updated
national weather service marquette mi
107 pm edt thu jul 9 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... 

weak troughing of 29.9 inches over lake superior this afternoon will 
give way to weak high pressure of 30.0 inches extending from hudson 
bay and northern ontario tonight and friday. high pressure builds to 
30.1 to 30.2 inches over the lake this weekend as the high shifts 
south to the lower great lakes through sunday. a strong low of 
around 29.3 inches looks to cross into hudson bay early next week.


lsz266-100115-
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-
107 pm edt thu jul 9 2026

...dense fog advisory in effect until 4 pm edt this afternoon...

.rest of today...northwest winds 5 to 15 knots. patchy dense fog.
waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots veering north late.
patchy fog through midnight. areas of dense fog after midnight.
waves calm to 2 feet. 
.friday...north winds 5 to 15 knots backing northwest late. waves
calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...southeast winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots becoming southwest 10 to
20 knots. waves building to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

$$