fzus61 kbuf 200302
glflo 
expires:202511201000;;169896

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed nov 19 2025

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 30.3 inch high over the lower great lakes will slide 
out across new england thursday. a 29.5 inch surface low near james 
bay will swing a cold front east across the lake friday, with a 30.1 
inch high then building over the ohio valley and lower great lakes 
saturday. a 29.5 inch low will then move from northern ontario to 
james bay sunday, while pushing its warm front across the lake 
saturday night, followed by its trailing cold front sunday. a 30.2 
inch high is then forecast to build across the ohio valley monday.


loz064-065-201000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est wed nov 19 2025

.overnight...east winds less than 10 knots becoming
southeast. waves 1 foot or less. 
.thursday...southeast winds 10 knots or less. waves 1 foot or
less. 
.thursday night...southeast winds 5 to 15 knots becoming south. a
chance of rain overnight. waves 1 to 3 feet. 
.friday...south winds 15 to 20 knots becoming southwest. rain
likely. waves 2 to 4 feet. 
.friday night...west winds 10 to 15 knots becoming northwest. a
chance of rain in the evening, then a chance of rain showers
overnight. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...north winds 5 to 15 knots becoming southwest. waves
1 to 3 feet subsiding to 1 foot or less. 
.sunday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. a chance of rain showers sunday night. waves 1 to
3 feet building to 2 to 4 feet. 
.monday...west winds 15 to 20 knots. a chance of rain showers.
waves 3 to 5 feet subsiding to 2 to 4 feet. 

$$

fzus61 kbuf 200302
glflo 
expires:202511201000;;169895

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed nov 19 2025

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 30.3 inch high over the lower great lakes will slide 
out across new england thursday. a 29.5 inch surface low near james 
bay will swing a cold front east across the lake friday, with a 30.1 
inch high then building over the ohio valley and lower great lakes 
saturday. a 29.5 inch low will then move from northern ontario to 
james bay sunday, while pushing its warm front across the lake 
saturday night, followed by its trailing cold front sunday. a 30.2 
inch high is then forecast to build across the ohio valley monday.


loz063-201000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est wed nov 19 2025

.overnight...south winds less than 10 knots. waves 1 foot
or less. 
.thursday...southeast winds 10 knots or less. waves 1 foot or
less. 
.thursday night...south winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.friday...southwest winds 10 to 15 knots becoming west. a chance
of rain. waves 1 to 3 feet. 
.friday night...west winds 10 to 15 knots becoming northwest.
waves 2 to 3 feet. 
.saturday...north winds 5 to 15 knots becoming southwest. waves
1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.monday...west winds 15 to 20 knots. a chance of showers. waves
3 to 5 feet subsiding to 2 to 4 feet. 

$$

fzus61 kbuf 200302
glflo 
expires:202511201000;;169894

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed nov 19 2025

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 30.3 inch high over the lower great lakes will slide 
out across new england thursday. a 29.5 inch surface low near james 
bay will swing a cold front east across the lake friday, with a 30.1 
inch high then building over the ohio valley and lower great lakes 
saturday. a 29.5 inch low will then move from northern ontario to 
james bay sunday, while pushing its warm front across the lake 
saturday night, followed by its trailing cold front sunday. a 30.2 
inch high is then forecast to build across the ohio valley monday.


loz062-201000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est wed nov 19 2025

.overnight...northeast winds less than 10 knots becoming
southeast. waves 1 foot or less. 
.thursday...southeast winds less than 10 knots. waves 1 foot or
less. 
.thursday night...south winds 10 knots or less becoming southwest
10 to 15 knots. waves 2 feet or less. 
.friday...southwest winds 10 to 15 knots becoming west. a chance
of rain. waves 1 to 3 feet. 
.friday night...west winds 10 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.saturday...north winds 5 to 15 knots becoming southwest. waves
2 feet or less. 
.sunday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.monday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 

$$

fzus61 kcle 200214
glfle 
expires:202511200915;;168468

open lake forecast for lake erie
national weather service cleveland oh
914 pm est wed nov 19 2025

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 centered over the great lakes region
will drift east towards the east coast tonight into thursday. a 
cold front will move east across lake erie friday with high 
pressure 30.00 inches building over the great lakes friday night 
into the weekend. another cold front is expected on monday.


lez162>164-200915-
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-
914 pm est wed nov 19 2025

.overnight...east winds less than 10 knots becoming
southeast. waves 1 foot or less. 
.thursday...southeast winds less than 10 knots becoming south.
waves 1 foot or less. 
.thursday night...south winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.friday...southwest winds 10 knots or less becoming west. waves
1 foot or less. 
.friday night...northwest winds 10 knots or less becoming north
10 to 15 knots. a chance of rain in the evening. waves 2 feet or
less. 
.saturday...north winds 5 to 15 knots becoming south 10 knots or
less. waves 2 feet or less. 
.sunday...southwest winds around 10 knots becoming west. waves
2 feet or less. 
.monday...west winds 5 to 10 knots becoming south. waves 2 feet
or less. 

$$

fzus61 kcle 200214
glfle 
expires:202511200915;;168469

open lake forecast for lake erie
national weather service cleveland oh
914 pm est wed nov 19 2025

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 centered over the great lakes region
will drift east towards the east coast tonight into thursday. a 
cold front will move east across lake erie friday with high 
pressure 30.00 inches building over the great lakes friday night 
into the weekend. another cold front is expected on monday.


lez165>167-200915-
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-
914 pm est wed nov 19 2025

.overnight...east winds less than 10 knots becoming
southeast. waves 1 foot or less. 
.thursday...southeast winds less than 10 knots becoming
southwest. waves 1 foot or less. 
.thursday night...south winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots becoming west. a chance
of rain in the afternoon. waves 2 feet or less. 
.friday night...northwest winds 5 to 15 knots becoming north. a
chance of rain in the evening. waves 1 to 3 feet. 
.saturday...north winds 5 to 15 knots becoming southwest 10 knots
or less. waves 1 to 3 feet subsiding to 1 foot or less. 
.sunday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.monday...west winds 10 to 15 knots becoming south. waves 1 to
3 feet. 

$$

fzus61 kcle 200214
glfle 
expires:202511200915;;168470

open lake forecast for lake erie
national weather service cleveland oh
914 pm est wed nov 19 2025

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 centered over the great lakes region
will drift east towards the east coast tonight into thursday. a 
cold front will move east across lake erie friday with high 
pressure 30.00 inches building over the great lakes friday night 
into the weekend. another cold front is expected on monday.


lez061-168-169-200915-
ripley to buffalo ny extending from 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-
914 pm est wed nov 19 2025

.overnight...light and variable winds. waves 1 foot or
less. 
.thursday...southeast winds less than 10 knots. waves 1 foot or
less. 
.thursday night...southwest winds 10 knots or less increasing to
10 to 15 knots. waves 2 feet or less. 
.friday...southwest winds 10 to 15 knots becoming west. a chance
of rain in the morning. waves 1 to 2 feet. 
.friday night...west winds around 10 knots becoming north. waves
1 to 2 feet. 
.saturday...north winds 10 knots or less becoming southwest.
waves 2 feet or less. 
.sunday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.monday...west winds 15 to 20 knots becoming south 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 2 feet. 

$$

fzus63 kdtx 200239
glflh 
expires:202511201045;;169092

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 pm est wed nov 19 2025

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, 29.90 inches, tracks across the
region thursday night, supporting moderate preceding southwest
winds and renewed colder northwest winds following. high
pressure, 30.10 inches, then slides across the central great
lakes to close out the week.


lhz362-363-201045-
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-
939 pm est wed nov 19 2025

.rest of tonight...southwest winds 5 to 10 knots. waves 2 feet or
less. 
.thursday...southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet
building to 2 to 4 feet in the afternoon. 
.thursday night...southwest winds 15 to 20 knots. a chance of
rain in the evening. waves 3 to 5 feet. 
.friday...west winds 10 to 15 knots. waves 3 to 5 feet. 
.friday night...northwest winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. waves 3 to 5 feet subsiding to
2 to 4 feet after midnight. 
.saturday...northwest winds 5 to 10 knots backing to the south
late in the afternoon...then becoming southwest 10 to 15 knots
late in the evening. waves 1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots. waves 2 to 4 feet. 
.monday...west winds 10 to 15 knots. waves 2 to 4 feet building
to 3 to 5 feet until early morning. 


$$

fzus63 kdtx 200239
glflh 
expires:202511201045;;169091

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 pm est wed nov 19 2025

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, 29.90 inches, tracks across the
region thursday night, supporting moderate preceding southwest
winds and renewed colder northwest winds following. high
pressure, 30.10 inches, then slides across the central great
lakes to close out the week.


lhz361-201045-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
939 pm est wed nov 19 2025

.rest of tonight...southwest winds 5 to 10 knots. waves 2 feet or
less. 
.thursday...southwest winds 5 to 10 knots becoming south 10 to
15 knots in the afternoon. a chance of rain in the afternoon.
waves 1 to 3 feet. 
.thursday night...southwest winds 10 to 15 knots veering to the
west after midnight. rain likely. waves 2 to 4 feet. 
.friday...west winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. waves 3 to 5 feet. 
.friday night...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. waves 3 to 5 feet subsiding to 1 to 3 feet in the late
evening and overnight. 
.saturday...northwest winds 5 to 10 knots backing to the west
late in the morning...then backing to the southwest late in the
afternoon increasing to 10 to 15 knots late in the evening. waves
2 feet or less. 
.sunday...southwest winds 10 to 15 knots veering to the west in
the late evening and early morning. waves 1 to 3 feet. 
.monday...west winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and early morning. waves 1 to 3 feet
building to 2 to 4 feet until early morning. 


$$

fzus63 kdtx 200239
glfsc 
expires:202511201045;;169095

lake st clair forecast
national weather service detroit/pontiac mi
939 pm est wed nov 19 2025

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, 29.90 inches, tracks across the
region thursday night, supporting moderate preceding southwest
winds and renewed colder northwest winds following. high
pressure, 30.10 inches, then slides across the central great
lakes to close out the week.


lcz460-201045-
lake st clair-
939 pm est wed nov 19 2025

.rest of tonight...light and variable winds. mostly cloudy this
evening becoming partly cloudy. waves nearly calm.
.thursday...light and variable winds becoming south 5 to 10 knots in
the afternoon. mostly cloudy. waves 2 feet or less.
.thursday night...southwest winds 5 to 10 knots. mostly cloudy.
waves 2 feet or less.
.friday...west winds 5 to 10 knots veering to the northwest early in
the afternoon. mostly cloudy. waves 2 feet or less.
.friday night...northwest winds 5 to 10 knots becoming north 10 to
15 knots in the late evening and overnight. mostly cloudy early in
the evening becoming partly cloudy. waves 2 feet or less.
.saturday...north winds 5 to 10 knots backing to the south in the
evening. mostly clear. waves 2 feet or less.
.sunday...southwest winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.monday...west winds 10 to 15 knots. partly cloudy. waves 2 feet or
less.

$$

fzus63 kdtx 200239
glflh 
expires:202511201045;;169093

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 pm est wed nov 19 2025

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, 29.90 inches, tracks across the
region thursday night, supporting moderate preceding southwest
winds and renewed colder northwest winds following. high
pressure, 30.10 inches, then slides across the central great
lakes to close out the week.


lhz462>464-201045-
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-
939 pm est wed nov 19 2025

.rest of tonight...light and variable winds becoming south 5 to
10 knots after midnight. waves 2 feet or less. 
.thursday...south winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. waves 2 feet or less. 
.thursday night...southwest winds 10 to 15 knots. a chance of
rain. waves 2 to 4 feet. 
.friday...west winds 10 to 15 knots. waves 2 to 4 feet. 
.friday night...northwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and early morning...then
becoming north 10 to 15 knots after midnight. waves 1 to 3 feet. 
.saturday...north winds 10 to 15 knots becoming northwest 5 to
10 knots late in the morning...then backing to the west late in
the afternoon becoming southwest 10 to 15 knots late in the
evening. waves 1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.monday...west winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet until early morning. 


$$

fzus63 kmkx 200254
glflm 
expires:202511201015;;169508

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
854 pm cst wed nov 19 2025

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 30.3 inches continues eastward from the great
lakes region tonight into thursday, allowing light south winds to
develop tonight, turning southwest and becoming breezy over 
northern portions of the lake thursday afternoon and evening (20 
to 25 kt gusts). low pressure around 29.5 inches tracking east
across canada drags a weak cold front across the lake thursday
evening, with winds veering west to northwest and decelerating
behind it. light north to northwest winds continue into friday,
becoming light and variable into early saturday as weak high
pressure passes over the lake.


lmz261-362-364-366-563-565-567-868-201015-
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-
854 pm cst wed nov 19 2025

sheboygan wi to pentwater mi north...

.rest of tonight...south winds 10 to 15 kt becoming southwest
10 to 20 kt. slight chance of drizzle overnight. waves 2 to 4 ft.
.thursday...southwest winds 10 to 20 kt increasing to 15 to
25 kt. slight chance of rain in the morning, then chance of rain
in the afternoon. waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft. 
.thursday night...southwest winds 15 to 25 kt becoming northwest
10 to 20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to
2 to 4 ft. 
.friday...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.friday night...north winds 10 to 20 kt diminishing to 5 to 10 kt
overnight. waves 1 to 3 ft. 
.saturday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft. 
.saturday night...southwest winds 10 to 20 kt. waves 2 to 4 ft. 
.sunday...southwest winds 10 to 20 kt becoming west 15 to 25 kt.
waves 2 to 4 ft. 
.monday...west winds 10 to 20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 200254
glflm 
expires:202511201015;;169509

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
854 pm cst wed nov 19 2025

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 30.3 inches continues eastward from the great
lakes region tonight into thursday, allowing light south winds to
develop tonight, turning southwest and becoming breezy over 
northern portions of the lake thursday afternoon and evening (20 
to 25 kt gusts). low pressure around 29.5 inches tracking east
across canada drags a weak cold front across the lake thursday
evening, with winds veering west to northwest and decelerating
behind it. light north to northwest winds continue into friday,
becoming light and variable into early saturday as weak high
pressure passes over the lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-201015-
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-
854 pm cst wed nov 19 2025

sheboygan wi to pentwater mi south...

.rest of tonight...southeast winds 5 to 10 kt becoming southwest.
slight chance of drizzle. waves 1 to 2 ft. 
.thursday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. slight chance of rain in the afternoon. waves 1 to 3 ft. 
.thursday night...southwest winds 10 to 20 kt veering to
northwest 10 to 15 kt. waves 2 to 4 ft. 
.friday...northwest winds 10 to 15 kt becoming north 10 to 20 kt.
waves 2 to 4 ft. 
.friday night...north winds 10 to 15 kt becoming northeast. waves
2 to 4 ft. 
.saturday...east winds 10 to 15 kt veering to south. waves 2 to
4 ft. 
.saturday night...south winds 10 to 20 kt becoming southwest.
waves 2 to 4 ft building to 3 to 5 ft. 
.sunday...southwest winds 10 to 20 kt. waves 3 to 5 ft. 
.monday...west winds 10 to 15 kt increasing to 10 to 20 kt. waves
2 to 4 ft.  

$$

fzus63 kmqt 200301
glfls 
expires:202511200900;;169836

open lake forecast for lake superior
national weather service marquette mi
1001 pm est wed nov 19 2025

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.8 inch trough moves over the lake on thursday as a developing 
29.7 inch low over northern manitoba moves into hudson bay. a 30.1 
inch ridge of high pressure over the northern plains and upper 
midwest on friday moves over the great lakes on saturday. another 
29.8 inch trough then moves over lake superior saturday night into 
sunday before 30.1 inch high pressure rebuilds over the great lakes 
early next week.



lsz267-200900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm est wed nov 19 2025

.rest of tonight...southwest winds 10 to 20 knots increasing to
15 to 25 knots by midnight. a slight chance of rain showers after
midnight. waves 1 to 3 feet building to 3 to 5 feet occasionally
to 7 feet. 
.thursday...southwest winds 15 to 25 knots. a chance of rain
showers in the morning, then rain showers likely in the
afternoon. patchy fog in the afternoon. waves building to 3 to
6 feet occasionally to 8 feet. 
.thursday night...west winds 15 to 25 knots increasing to 20 to
30 knots late. a chance of rain showers. waves subsiding to 3 to
5 feet occasionally to 7 feet, then building to 4 to 7 feet
occasionally to 9 feet. 
.friday...west winds 20 to 30 knots becoming northwest gales to
35 knots in the afternoon. a chance of rain showers, possibly
mixed with snow. waves building to 5 to 8 feet occasionally to
10 feet. 
.friday night...northwest winds 15 to 25 knots. waves subsiding
to 2 to 4 feet. 
.saturday...southwest winds 15 to 25 knots backing south in the
afternoon. waves 2 to 4 feet. 
.saturday night...southwest winds 15 to 25 knots. a chance of
rain showers. waves 2 to 4 feet. 
.sunday...west winds 15 to 25 knots. a chance of rain showers.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. a chance of rain showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 200301
glfls 
expires:202511200900;;169831

open lake forecast for lake superior
national weather service marquette mi
1001 pm est wed nov 19 2025

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.8 inch trough moves over the lake on thursday as a developing 
29.7 inch low over northern manitoba moves into hudson bay. a 30.1 
inch ridge of high pressure over the northern plains and upper 
midwest on friday moves over the great lakes on saturday. another 
29.8 inch trough then moves over lake superior saturday night into 
sunday before 30.1 inch high pressure rebuilds over the great lakes 
early next week.



lsz162-200900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm est wed nov 19 2025 /901 pm cst wed nov 19 2025/

.rest of tonight...southwest winds 15 to 25 knots. a chance of
rain showers. waves 2 to 4 feet building to 3 to 5 feet
occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots veering west. a chance
of rain showers in the morning. waves subsiding to 2 to 4 feet. 
.thursday night...west winds 15 to 25 knots diminishing to 10 to
20 knots late. waves subsiding to 1 to 3 feet, then building to
2 to 4 feet. 
.friday...northwest winds 10 to 20 knots. waves subsiding to calm
to 2 feet. 
.friday night...northwest winds 5 to 15 knots backing southwest
after midnight. waves calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots. waves calm to 2 feet.
.saturday night...west winds 10 to 20 knots. waves calm to
2 feet. 
.sunday...west winds 10 to 20 knots. waves calm to 2 feet. 
.monday...west winds 10 to 20 knots becoming southeast 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 200301
glfls 
expires:202511200900;;169832

open lake forecast for lake superior
national weather service marquette mi
1001 pm est wed nov 19 2025

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.8 inch trough moves over the lake on thursday as a developing 
29.7 inch low over northern manitoba moves into hudson bay. a 30.1 
inch ridge of high pressure over the northern plains and upper 
midwest on friday moves over the great lakes on saturday. another 
29.8 inch trough then moves over lake superior saturday night into 
sunday before 30.1 inch high pressure rebuilds over the great lakes 
early next week.



lsz263-200900-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1001 pm est wed nov 19 2025

.rest of tonight...southwest winds 10 to 20 knots increasing to
15 to 25 knots by midnight. a chance of rain showers. waves 2 to
4 feet building to 3 to 5 feet occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots veering west. patchy
fog in the morning. a chance of rain showers. waves building to
3 to 6 feet occasionally to 8 feet. 
.thursday night...west winds 10 to 20 knots increasing to 15 to
25 knots by midnight. waves building to 3 to 6 feet occasionally
to 8 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots backing southwest
after midnight. waves calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots. waves building to
1 to 3 feet. 
.saturday night...southwest winds 10 to 20 knots veering west
after midnight. waves building to 2 to 4 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 
.monday...west winds 10 to 20 knots becoming southeast 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 200301
glfls 
expires:202511200900;;169833

open lake forecast for lake superior
national weather service marquette mi
1001 pm est wed nov 19 2025

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.8 inch trough moves over the lake on thursday as a developing 
29.7 inch low over northern manitoba moves into hudson bay. a 30.1 
inch ridge of high pressure over the northern plains and upper 
midwest on friday moves over the great lakes on saturday. another 
29.8 inch trough then moves over lake superior saturday night into 
sunday before 30.1 inch high pressure rebuilds over the great lakes 
early next week.



lsz264-200900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm est wed nov 19 2025

.rest of tonight...southwest winds 10 to 20 knots increasing to
15 to 25 knots late. a chance of rain showers late in the
evening, then rain showers likely after midnight. waves 2 to
4 feet building to 3 to 6 feet occasionally to 8 feet. 
.thursday...southwest winds 15 to 25 knots veering west. patchy
fog in the morning. rain showers likely in the morning, then a
chance of rain showers in the afternoon. waves 3 to 6 feet
occasionally to 8 feet. 
.thursday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots by midnight, then increasing to 15 to 25 knots
late. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday...northwest winds 15 to 25 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 2 to 4 feet. 
.friday night...northwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots. waves building to
1 to 3 feet. 
.saturday night...southwest winds 10 to 20 knots veering west
after midnight. waves building to 2 to 4 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 
.monday...west winds 10 to 20 knots backing southeast. waves
building to 2 to 4 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 200301
glfls 
expires:202511200900;;169834

open lake forecast for lake superior
national weather service marquette mi
1001 pm est wed nov 19 2025

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.8 inch trough moves over the lake on thursday as a developing 
29.7 inch low over northern manitoba moves into hudson bay. a 30.1 
inch ridge of high pressure over the northern plains and upper 
midwest on friday moves over the great lakes on saturday. another 
29.8 inch trough then moves over lake superior saturday night into 
sunday before 30.1 inch high pressure rebuilds over the great lakes 
early next week.



lsz265-200900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm est wed nov 19 2025

.rest of tonight...southwest winds 10 to 20 knots increasing to
15 to 25 knots by midnight. a chance of rain showers. waves calm
to 2 feet building to 1 to 3 feet. 
.thursday...southwest winds 15 to 25 knots increasing to 20 to
30 knots by late morning, then veering west by mid afternoon. a
chance of rain showers. waves building to 2 to 4 feet. 
.thursday night...west winds 20 to 30 knots. a slight chance of
rain showers in the evening. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. a slight chance of rain and snow
showers in the morning. waves subsiding to 2 to 4 feet. 
.friday night...northwest winds 10 to 20 knots backing west after
midnight. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots. waves calm to 2 feet.
.saturday night...southwest winds 10 to 20 knots veering west
after midnight. waves calm to 2 feet. 
.sunday...west winds 15 to 25 knots. waves calm to 2 feet. 
.monday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 200301
glfls 
expires:202511200900;;169835

open lake forecast for lake superior
national weather service marquette mi
1001 pm est wed nov 19 2025

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.8 inch trough moves over the lake on thursday as a developing 
29.7 inch low over northern manitoba moves into hudson bay. a 30.1 
inch ridge of high pressure over the northern plains and upper 
midwest on friday moves over the great lakes on saturday. another 
29.8 inch trough then moves over lake superior saturday night into 
sunday before 30.1 inch high pressure rebuilds over the great lakes 
early next week.



lsz266-200900-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1001 pm est wed nov 19 2025

.rest of tonight...southwest winds 15 to 25 knots. a slight
chance of rain showers. waves 1 to 3 feet building to 3 to 5 feet
occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots veering west by mid
afternoon. patchy fog in the morning. a chance of rain showers.
waves building to 3 to 6 feet occasionally to 8 feet. 
.thursday night...west winds 15 to 25 knots increasing to 20 to
30 knots by midnight, then diminishing to 15 to 25 knots late. a
chance of rain showers. waves building to 4 to 7 feet
occasionally to 9 feet. 
.friday...northwest winds 20 to 30 knots. a chance of snow
showers, possibly mixed with rain. waves building to 4 to 8 feet
occasionally to 10 feet. 
.friday night...northwest winds 10 to 20 knots. waves subsiding
to 2 to 4 feet. 
.saturday...southwest winds 10 to 20 knots becoming south 15 to
25 knots in the afternoon. waves 2 to 4 feet. 
.saturday night...southwest winds 15 to 25 knots veering west
after midnight. a chance of rain showers. waves 2 to 4 feet. 
.sunday...west winds 15 to 25 knots. a chance of rain showers.
waves 2 to 4 feet. 
.monday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 3 feet. 

$$