fzus61 kbuf 101402
glflo 
expires:202607102100;;735826

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri jul 10 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 build into the upper great lakes 
today, then strengthen to 30.2 inches while building across the 
lower great lakes tonight through the weekend, before expanding east 
into new england monday. the 30.2 inch high will then drift south 
into the mid atlantic tuesday, allowing a warm front to pass across 
the lake.


loz063>065-102100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri jul 10 2026

.this afternoon...northeast winds 5 to 10 knots becoming
northwest. waves 1 foot or less. 
.tonight...northwest winds 5 to 10 knots becoming northeast.
waves 1 foot or less. 
.saturday...northeast winds 5 to 10 knots becoming north. waves
2 feet or less. 
.saturday night...north winds 5 to 10 knots becoming light and
variable. waves 1 foot or less. 
.sunday...light and variable winds becoming south 5 to 10 knots.
waves 1 foot or less. 
.monday...southwest winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. waves 1 to 3 feet building to 3 to 6 feet. 

$$

fzus61 kbuf 101402
glflo 
expires:202607102100;;735825

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri jul 10 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 build into the upper great lakes 
today, then strengthen to 30.2 inches while building across the 
lower great lakes tonight through the weekend, before expanding east 
into new england monday. the 30.2 inch high will then drift south 
into the mid atlantic tuesday, allowing a warm front to pass across 
the lake.


loz062-102100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri jul 10 2026

.this afternoon...northeast winds 10 knots or less becoming east.
waves 1 foot or less. 
.tonight...northeast winds 10 knots or less. waves 1 foot or
less. 
.saturday...northeast winds 10 knots or less becoming east. waves
1 foot or less. 
.saturday night...southeast winds less than 10 knots. waves
1 foot or less. 
.sunday...light and variable winds. waves 1 foot or less. 
.monday...southwest winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 

$$

fzus61 kcle 101301
glfle 
expires:202607102030;;733948

open lake forecast for lake erie
national weather service cleveland oh
901 am edt fri jul 10 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 weak cold front will push south of the lakeshore today. high 
pressure of 30.10 inches builds over the central great lakes on
sunday then settles south to the ohio valley through the first
half of next week.  


lez162>164-102030-
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-
901 am edt fri jul 10 2026

.rest of today...northwest winds 10 knots or less becoming
northeast. a slight chance of showers and thunderstorms early,
then a chance of showers and thunderstorms this afternoon. waves
1 foot or less. 
.tonight...northeast winds 5 to 10 knots. a slight chance of
showers and thunderstorms early, then a slight chance of showers
late in the evening. waves 1 foot or less. 
.saturday...northeast winds 10 to 15 knots. waves 1 to 3 feet. 
.saturday night...northeast winds 5 to 15 knots. waves 1 to
3 feet. 
.sunday...northeast winds 5 to 10 knots becoming east. waves
2 feet or less. 
.monday...east winds 10 knots or less becoming southwest. waves
1 foot or less. 
.tuesday...southwest winds 5 to 15 knots becoming west. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 101301
glfle 
expires:202607102030;;733949

open lake forecast for lake erie
national weather service cleveland oh
901 am edt fri jul 10 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 weak cold front will push south of the lakeshore today. high 
pressure of 30.10 inches builds over the central great lakes on
sunday then settles south to the ohio valley through the first
half of next week.  


lez061-165>169-102030-
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-
901 am edt fri jul 10 2026

.rest of today...northwest winds less than 10 knots becoming
north. a chance of showers with a slight chance of thunderstorms
early, then a slight chance of showers and thunderstorms from
late morning on. waves 1 foot or less. 
.tonight...north winds 5 to 10 knots becoming northeast. a slight
chance of showers and thunderstorms in the evening. waves 1 foot
or less. 
.saturday...northeast winds 10 to 15 knots. waves 1 to 3 feet. 
.saturday night...northeast winds 5 to 15 knots becoming east.
waves 1 to 3 feet. 
.sunday...east winds 5 to 15 knots. waves 2 feet or less. 
.monday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.tuesday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 101348
glfsc 
expires:202607102200;;735426

lake st clair forecast
national weather service detroit/pontiac mi
948 am edt fri jul 10 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 cold front stalls across the southern great lakes
friday morning, maintaining a chance for showers and
thunderstorms near lake st. clair and western lake erie.
meanwhile, high pressure develops over the northern great lakes.
this high migrates southward into the central great lakes through
this weekend, strengthening slightly to 30.20 inches while
offering benign conditions.


lcz460-102200-
lake st clair-
948 am edt fri jul 10 2026

.rest of today...north winds 5 to 10 knots late in the morning
becoming light and variable...then becoming north 5 to 10 knots late
in the afternoon. partly sunny. waves 2 feet or less.
.tonight...northeast winds 10 to 15 knots becoming north 5 to 10
knots after midnight...then increasing to 10 to 15 knots early in
the morning. partly cloudy. waves 2 feet or less.
.saturday...northeast winds 10 to 15 knots diminishing to 5 to 10
knots in the late morning and afternoon. mostly sunny. waves 2 feet
or less.
.saturday night...northeast winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. mostly clear. waves 2 feet or less.
.sunday...light and variable winds becoming east 5 to 10 knots in
the afternoon and evening. clear. waves 2 feet or less.
.monday...south winds 5 to 10 knots. clear. waves 2 feet or less.
.tuesday...southwest winds 10 to 15 knots. clear. waves 2 feet or
less.

$$

fzus63 kdtx 101347
glflh 
expires:202607102200;;735388

open lake forecast for lake huron
national weather service detroit/pontiac mi
947 am edt fri jul 10 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 cold front stalls across the southern great lakes
friday morning, maintaining a chance for showers and
thunderstorms near lake st. clair and western lake erie.
meanwhile, high pressure develops over the northern great lakes.
this high migrates southward into the central great lakes through
this weekend, strengthening slightly to 30.20 inches while
offering benign conditions.


lhz361-102200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
947 am edt fri jul 10 2026

.rest of today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds becoming east 5 to 10 knots
early in the afternoon. waves 2 feet or less. 
.saturday night...southeast winds 5 to 10 knots veering to the
south after midnight. waves 2 feet or less. 
.sunday...south winds 5 to 10 knots backing to the southeast late
in the afternoon...then veering to the southwest late in the
evening. waves 2 feet or less. 
.monday...southwest winds 10 to 15 knots. waves 2 to 4 feet
building to 3 to 5 feet by midnight. 
.tuesday...west winds 15 to 20 knots decreasing to 10 to 15 knots
by midnight. waves 4 to 6 feet. waves occasionally around 8 feet.


$$

fzus63 kdtx 101347
glflh 
expires:202607102200;;735389

open lake forecast for lake huron
national weather service detroit/pontiac mi
947 am edt fri jul 10 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 cold front stalls across the southern great lakes
friday morning, maintaining a chance for showers and
thunderstorms near lake st. clair and western lake erie.
meanwhile, high pressure develops over the northern great lakes.
this high migrates southward into the central great lakes through
this weekend, strengthening slightly to 30.20 inches while
offering benign conditions.


lhz362-363-102200-
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-
947 am edt fri jul 10 2026

.rest of today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 
.saturday night...light and variable winds. waves 2 feet or less.
.sunday...light and variable winds becoming south 5 to 10 knots.
waves 2 feet or less. 
.monday...south winds 5 to 10 knots. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots. waves 3 to 5 feet. 


$$

fzus63 kdtx 101347
glflh 
expires:202607102200;;735390

open lake forecast for lake huron
national weather service detroit/pontiac mi
947 am edt fri jul 10 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 cold front stalls across the southern great lakes
friday morning, maintaining a chance for showers and
thunderstorms near lake st. clair and western lake erie.
meanwhile, high pressure develops over the northern great lakes.
this high migrates southward into the central great lakes through
this weekend, strengthening slightly to 30.20 inches while
offering benign conditions.


lhz462>464-102200-
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-
947 am edt fri jul 10 2026

.rest of today...north winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. waves 2 feet or less. 
.tonight...north winds 10 to 15 knots becoming northeast 5 to
10 knots in the late evening and overnight. waves 1 to 3 feet. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...north winds 5 to 10 knots  becoming light and
variable. waves 1 to 3 feet. 
.sunday...light and variable winds becoming southeast 5 to
10 knots late in the evening. waves 2 feet or less. 
.monday...south winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...southwest winds 5 to 10 knots increasing to 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet. 


$$

fzus63 kmkx 101343
glflm 
expires:202607102115;;735211

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
843 am cdt fri jul 10 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 of 30.0 inches over the great lakes this morning will 
strengthen to 30.2 inches this weekend while remaining in place. the 
high will largely stay put through the first half of next week, 
eventually shifting southward by late in the week ahead of an 
approaching trough of low pressure. northerly winds generally under 
15 knots through at least saturday will become southerly by monday, 
increasing a bit early next week. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-102115-
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-
843 am cdt fri jul 10 2026

sheboygan wi to pentwater mi south...

.rest of today...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft building to 2 to 4 ft. 
.tonight...north winds 10 to 20 kt becoming northeast 10 to
15 kt. waves 1 to 3 ft. 
.saturday...northeast winds 5 to 10 kt becoming north 10 to 15 kt
early in the afternoon, then increasing to 10 to 20 kt late.
waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 20 kt becoming east 5 to
10 kt overnight. waves 1 to 3 ft. 
.sunday...southeast winds 5 to 10 kt becoming northeast. waves
1 to 2 ft. 
.sunday night...northeast winds 10 to 15 kt veering to south.
waves 1 to 2 ft. 
.monday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 2 ft. 
.tuesday...west winds 10 to 15 kt becoming southwest 15 to 25 kt.
waves 1 to 3 ft.  

$$

fzus63 kmkx 101343
glflm 
expires:202607102115;;735210

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
843 am cdt fri jul 10 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 of 30.0 inches over the great lakes this morning will 
strengthen to 30.2 inches this weekend while remaining in place. the 
high will largely stay put through the first half of next week, 
eventually shifting southward by late in the week ahead of an 
approaching trough of low pressure. northerly winds generally under 
15 knots through at least saturday will become southerly by monday, 
increasing a bit early next week. 


lmz261-362-364-366-563-565-567-868-102115-
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-
843 am cdt fri jul 10 2026

sheboygan wi to pentwater mi north...

.rest of today...northeast winds 5 to 10 kt increasing to 10 to
15 kt late this morning, then becoming north early this afternoon
increasing to 10 to 20 kt late. waves 1 to 3 ft. 
.tonight...north winds 10 to 20 kt diminishing to 10 to 15 kt
late in the evening, then becoming northeast after midnight
becoming northeast 5 to 10 kt late. waves 1 to 3 ft subsiding to
1 ft or less. 
.saturday...east winds 5 to 10 kt backing to west early in the
afternoon, then becoming northwest late. waves 1 to 2 ft. 
.saturday night...east winds 10 to 15 kt becoming south. waves
1 ft or less. 
.sunday...south winds 10 to 20 kt becoming southwest. waves 1 to
3 ft. 
.sunday night...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.monday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft. 
.tuesday...southwest winds to 30 kt. waves 3 to 5 ft.  

$$

fzus63 kmqt 101401
glfls 
expires:202607102000;;735791

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 10 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 high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario today. 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. by wednesday, 
30.1 inch high pressure extends from the canadian prairie to the 
southern appalachians as 29.1 inch low pressure moves into northern 
quebec.




lsz162-102000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt fri jul 10 2026 /900 am cdt fri jul 10 2026/

...dense fog advisory in effect until 11 am edt /10 am cdt/ this
morning...

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

$$

fzus63 kmqt 101401
glfls 
expires:202607102000;;735792

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 10 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 high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario today. 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. by wednesday, 
30.1 inch high pressure extends from the canadian prairie to the 
southern appalachians as 29.1 inch low pressure moves into northern 
quebec.




lsz263-102000-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1000 am edt fri jul 10 2026

...dense fog advisory in effect until 11 am edt this morning...

.rest of today...south winds less than 10 knots backing northeast
in the afternoon, then veering east late. waves calm to 2 feet. 
.tonight...east winds less than 10 knots backing north after
midnight, then backing southwest late. patchy dense fog after
midnight. waves calm to 2 feet. 
.saturday...southwest winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then backing south late. waves calm to
2 feet. 
.saturday night...south winds 5 to 15 knots veering southwest
after midnight. a slight chance of showers. a slight chance of
thunderstorms after midnight. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 2 to 4 feet. 
.sunday night...southwest winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.monday...southwest winds 20 to 30 knots increasing to gales to
35 knots. waves subsiding to 2 to 4 feet, then building to 4 to
7 feet occasionally to 9 feet. 
.tuesday...west winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 101401
glfls 
expires:202607102000;;735793

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 10 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 high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario today. 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. by wednesday, 
30.1 inch high pressure extends from the canadian prairie to the 
southern appalachians as 29.1 inch low pressure moves into northern 
quebec.




lsz264-102000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt fri jul 10 2026

...dense fog advisory in effect until 11 am edt this morning...

.rest of today...south winds less than 10 knots backing southeast
in the afternoon. patchy fog. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots diminishing to less than
10 knots late. patchy dense fog through midnight. waves calm to
2 feet. 
.saturday...south winds less than 10 knots backing southeast
late. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering southwest
after midnight. a chance of showers and a slight chance of
thunderstorms after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.sunday night...southwest winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.monday...southwest winds 15 to 25 knots increasing to gales to
35 knots. waves subsiding to 2 to 4 feet, then building to 5 to
8 feet occasionally to 10 feet. 
.tuesday...west winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 101401
glfls 
expires:202607102000;;735794

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 10 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 high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario today. 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. by wednesday, 
30.1 inch high pressure extends from the canadian prairie to the 
southern appalachians as 29.1 inch low pressure moves into northern 
quebec.




lsz265-102000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt fri jul 10 2026

...dense fog advisory in effect until 11 am edt this morning...

.rest of today...southeast winds 5 to 15 knots backing east in
the afternoon. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots veering south late.
waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots backing southeast in the
afternoon, then increasing to 10 to 20 knots late. waves calm to
2 feet. 
.saturday night...south winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. a slight chance of showers and
thunderstorms after midnight. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots backing southeast by mid
afternoon. a slight chance of showers and thunderstorms through
early afternoon. waves calm to 2 feet. 
.sunday night...south winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. waves building to 2 to 4 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 6 feet occasionally to 8 feet. 
.tuesday...west winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 101401
glfls 
expires:202607102000;;735795

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 10 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 high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario today. 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. by wednesday, 
30.1 inch high pressure extends from the canadian prairie to the 
southern appalachians as 29.1 inch low pressure moves into northern 
quebec.




lsz266-102000-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1000 am edt fri jul 10 2026

...dense fog advisory in effect until 11 am edt this morning...

.rest of today...southeast winds 5 to 15 knots backing east late.
patchy fog. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots. areas of dense fog
through midnight. patchy fog after midnight. waves calm to
2 feet. 
.saturday...southeast winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a slight chance of showers and
thunderstorms after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots backing south by mid
afternoon. a slight chance of showers and thunderstorms. waves
calm to 2 feet. 
.sunday night...south winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. waves building to 2 to 4 feet. 
.monday...southwest winds 10 to 20 knots increasing to gales to
35 knots. waves building to 5 to 8 feet occasionally to 10 feet. 
.tuesday...west gales to 35 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 101401
glfls 
expires:202607102000;;735796

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 10 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 high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario today. 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. by wednesday, 
30.1 inch high pressure extends from the canadian prairie to the 
southern appalachians as 29.1 inch low pressure moves into northern 
quebec.




lsz267-102000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt fri jul 10 2026

...dense fog advisory in effect until 11 am edt this morning...

.rest of today...northwest winds 5 to 15 knots veering north in
the afternoon. patchy fog. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots veering southeast after
midnight. patchy dense fog. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots backing east late.
waves calm to 2 feet. 
.saturday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots. a slight chance of showers.
a slight chance of thunderstorms by mid afternoon. waves calm to
2 feet. 
.sunday night...south winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.monday...west winds 5 to 15 knots becoming southwest 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to calm to 2 feet. 

$$