fzus61 kbuf 150202
glflo 
expires:202608150900;;205879

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt fri aug 14 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 high pressure ridge averaging 30.2 inches builds from the canadian 
prairies before settling over lake ontario and vicinity by saturday. 
the ridge begins to exit eastward saturday night and a low of 29.7 
inches should move generally east-southeastward from near the 
northern great lakes to near the gulf of maine saturday night 
through monday. this low track should allow a warm front to sweep 
northeastward across lake ontario saturday night and especially on 
sunday before a cold front sweeps eastward across the lake sunday 
evening through sunday night. behind the cold front, a high pressure 
ridge averaging 30.0 inches should build slowly from the upper 
midwest through tuesday. a 29.7 inch low is expected to move across 
the central great lakes wednesday and move across or near lake 
ontario wednesday night.


loz063>065-150900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt fri aug 14 2026

.overnight...northeast winds 10 knots or less becoming
east. waves 1 foot or less. 
.saturday...east winds 5 to 10 knots becoming northeast. waves
1 foot or less. 
.saturday night...northeast winds 5 to 10 knots becoming
southeast. waves 2 feet or less. 
.sunday...southeast winds 10 to 15 knots. a chance of showers in
the morning, then showers with a chance of thunderstorms in the
afternoon. waves 2 feet or less. 
.sunday night...south winds 10 to 15 knots becoming northwest.
showers with a chance of thunderstorms in the evening, then
showers likely overnight. waves 1 to 2 feet. 
.monday...northwest winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...west winds 10 knots or less becoming southwest 10 to
15 knots. waves 2 feet or less. 
.wednesday...southwest winds 5 to 15 knots becoming west 15 to
20 knots. a chance of showers during the day, then showers likely
wednesday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 150202
glflo 
expires:202608150900;;205878

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt fri aug 14 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 high pressure ridge averaging 30.2 inches builds from the canadian 
prairies before settling over lake ontario and vicinity by saturday. 
the ridge begins to exit eastward saturday night and a low of 29.7 
inches should move generally east-southeastward from near the 
northern great lakes to near the gulf of maine saturday night 
through monday. this low track should allow a warm front to sweep 
northeastward across lake ontario saturday night and especially on 
sunday before a cold front sweeps eastward across the lake sunday 
evening through sunday night. behind the cold front, a high pressure 
ridge averaging 30.0 inches should build slowly from the upper 
midwest through tuesday. a 29.7 inch low is expected to move across 
the central great lakes wednesday and move across or near lake 
ontario wednesday night.


loz062-150900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt fri aug 14 2026

.overnight...east winds 10 knots or less. waves 1 foot or
less. 
.saturday...east winds 5 to 15 knots. waves 2 feet or less. 
.saturday night...east winds 10 to 15 knots becoming southeast.
waves 1 to 2 feet. 
.sunday...southeast winds around 10 knots becoming east. a chance
of showers in the morning, then showers with a chance of
thunderstorms in the afternoon. waves 1 to 2 feet. 
.sunday night...north winds around 10 knots becoming northwest.
showers with a chance of thunderstorms in the evening. waves 1 to
2 feet. 
.monday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...west winds 10 knots or less becoming southwest. waves
2 feet or less. 
.wednesday...southwest winds 5 to 15 knots becoming west. a
chance of showers during the day, then showers likely wednesday
night. waves 2 feet or less building to 2 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 150126
glfle 
expires:202608150815;;204860

open lake forecast for lake erie
national weather service cleveland oh
926 pm edt fri aug 14 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 of 30.30 inches will build into the upper great 
lakes tonight through friday, before departing east on saturday. 
low pressure of 29.90 inches will move east through the upper 
great lakes sunday, with a warm front lifting north across lake 
erie in the morning and a cold front sunday night. high pressure 
30.00 inches returns monday and tuesday.


lez061-168-169-150815-
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-
926 pm edt fri aug 14 2026

.overnight...east winds less than 10 knots. waves 1 foot or
less. 
.saturday...east winds 10 knots or less becoming northeast. waves
1 foot or less. 
.saturday night...east winds 5 to 10 knots becoming southeast. a
chance of showers overnight. waves 2 feet or less. 
.sunday...south winds 10 to 15 knots becoming west 15 to
20 knots. a chance of showers in the morning, then showers with a
chance of thunderstorms in the afternoon. waves 1 to 3 feet
building to 2 to 4 feet. 
.sunday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. showers with a chance of thunderstorms in the
evening, then a chance of showers overnight. waves 2 to 3 feet. 
.monday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.tuesday...west winds 10 knots or less becoming south. waves
2 feet or less. 
.wednesday...southwest winds 10 to 15 knots becoming northwest. a
chance of showers during the day, then showers likely wednesday
night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 150126
glfle 
expires:202608150815;;204858

open lake forecast for lake erie
national weather service cleveland oh
926 pm edt fri aug 14 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 of 30.30 inches will build into the upper great 
lakes tonight through friday, before departing east on saturday. 
low pressure of 29.90 inches will move east through the upper 
great lakes sunday, with a warm front lifting north across lake 
erie in the morning and a cold front sunday night. high pressure 
30.00 inches returns monday and tuesday.


lez162>164-150815-
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-
926 pm edt fri aug 14 2026

.overnight...east winds 5 to 10 knots. waves 1 foot or
less. 
.saturday...east winds 5 to 10 knots. a slight chance of showers
early in the afternoon. a slight chance of showers and
thunderstorms late. waves 1 foot or less. 
.saturday night...east winds around 10 knots becoming southwest.
showers likely with a chance of thunderstorms. waves 2 feet or
less. 
.sunday...southwest winds 10 to 15 knots becoming west. a chance
of showers in the morning, then showers likely with a chance of
thunderstorms in the afternoon. waves 1 to 2 feet. 
.sunday night...west winds 10 to 15 knots becoming northwest.
showers likely with a chance of thunderstorms in the evening.
waves 1 to 2 feet. 
.monday...northwest winds 10 knots or less becoming west. waves
2 feet or less. 
.tuesday...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.wednesday...southwest winds 10 to 15 knots becoming north. a
chance of showers and thunderstorms during the day, then a chance
of showers wednesday night. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 150126
glfle 
expires:202608150815;;204859

open lake forecast for lake erie
national weather service cleveland oh
926 pm edt fri aug 14 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 of 30.30 inches will build into the upper great 
lakes tonight through friday, before departing east on saturday. 
low pressure of 29.90 inches will move east through the upper 
great lakes sunday, with a warm front lifting north across lake 
erie in the morning and a cold front sunday night. high pressure 
30.00 inches returns monday and tuesday.


lez165>167-150815-
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-
926 pm edt fri aug 14 2026

.overnight...northeast winds 5 to 10 knots becoming east.
waves 1 foot or less. 
.saturday...east winds 10 knots or less. waves 1 foot or less. 
.saturday night...east winds 10 to 15 knots becoming south. a
chance of showers and thunderstorms in the evening, then showers
likely with a chance of thunderstorms overnight. waves 1 to
2 feet. 
.sunday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. a chance of showers in the morning, then showers with a
chance of thunderstorms in the afternoon. waves 1 to 3 feet
building to 2 to 4 feet. 
.sunday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. showers with a chance of thunderstorms in the
evening, then a chance of showers overnight. waves 2 to 3 feet. 
.monday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.tuesday...west winds 10 knots or less becoming south 10 to
15 knots. waves 2 feet or less. 
.wednesday...southwest winds 10 to 15 knots becoming northwest
15 to 20 knots. a chance of showers and thunderstorms during the
day, then a chance of showers wednesday night. waves 1 to 3 feet.

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 150142
glflh 
expires:202608150945;;205186

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 pm edt fri aug 14 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...high pressure, 30.20 inches, currently centered over
northern lake huron will dominate the region through saturday
while sliding southeast through the eastern lakes. the next low
pressure system will pass through the region on saturday night
bringing the next thunderstorm chances.


lhz361-150945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
942 pm edt fri aug 14 2026

.rest of tonight...north winds 5 to 10 knots by midnight becoming
light and variable. waves 2 feet or less. 
.saturday...light and variable winds becoming east 10 to
15 knots. waves 2 feet or less building to 2 to 4 feet late in
the afternoon. 
.saturday night...southeast winds 10 to 15 knots. a chance of
showers after midnight. waves 3 to 5 feet subsiding to 1 to
3 feet after midnight. 
.sunday...southeast winds 5 to 10 knots becoming west 10 to
15 knots early in the afternoon. a chance of showers in the
morning. waves 1 to 3 feet. 
.sunday night...northwest winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. waves 2 to 4 feet. 
.monday...northwest winds 5 to 10 knots backing to the west late
in the evening. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 10 knots veering to the west by
midnight. a chance of showers early in the evening. rain showers
likely by midnight. waves 1 to 3 feet. 
.wednesday...northwest winds 5 to 10 knots increasing to 10 to
15 knots. showers likely early in the morning...then a chance of
showers until early evening. waves 1 to 3 feet. 


$$

fzus63 kdtx 150142
glfsc 
expires:202608150945;;205190

lake st clair forecast
national weather service detroit/pontiac mi
942 pm edt fri aug 14 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...high pressure, 30.20 inches, currently centered over
northern lake huron will dominate the region through saturday
while sliding southeast through the eastern lakes. the next low
pressure system will pass through the region on saturday night
bringing the next thunderstorm chances.


lcz460-150945-
lake st clair-
942 pm edt fri aug 14 2026

.rest of tonight...northeast winds 5 to 10 knots. partly cloudy.
waves 2 feet or less.
.saturday...northeast winds 5 to 10 knots early in the morning
becoming light and variable...then becoming southeast 5 to 10 knots
in the afternoon. partly sunny in the morning becoming mostly
cloudy. waves 2 feet or less.
.saturday night...southeast winds 10 to 15 knots. mostly cloudy.
showers likely and a chance of thunderstorms. waves 2 feet or less.
.sunday...southwest winds 10 to 15 knots veering to the west early
in the afternoon. mostly cloudy. showers likely. a chance of
thunderstorms early in the afternoon. waves 2 feet or less.
.sunday night...northwest winds 10 to 15 knots. partly cloudy. light
showers likely and a chance of thunderstorms early in the evening.
waves 2 feet or less.
.monday...northwest winds 10 to 15 knots becoming north 5 to 10
knots in the afternoon...then veering to the northeast in the
evening. mostly sunny becoming clear. waves 2 feet or less.
.tuesday...southwest winds 5 to 10 knots. mostly clear. waves 2 feet
or less.
.wednesday...northwest winds 10 to 15 knots. partly cloudy. showers
likely and a chance of thunderstorms. waves 2 feet or less.

$$

fzus63 kdtx 150142
glflh 
expires:202608150945;;205187

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 pm edt fri aug 14 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...high pressure, 30.20 inches, currently centered over
northern lake huron will dominate the region through saturday
while sliding southeast through the eastern lakes. the next low
pressure system will pass through the region on saturday night
bringing the next thunderstorm chances.


lhz362-363-150945-
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-
942 pm edt fri aug 14 2026

.rest of tonight...light and variable winds becoming northeast
5 to 10 knots early in the morning. waves 2 feet or less. 
.saturday...east winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...east winds 5 to 10 knots becoming southeast
10 to 15 knots in the late evening and overnight. a chance of
showers after midnight. waves 1 to 3 feet. 
.sunday...southeast winds 10 to 15 knots becoming south 5 to
10 knots in the late morning and early afternoon...then veering
to the southwest early in the afternoon. a chance of showers.
waves 1 to 3 feet. 
.sunday night...northwest winds 10 to 15 knots increasing to
15 to 20 knots by midnight...then decreasing to 10 to 15 knots
after midnight. waves 3 to 5 feet. 
.monday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then becoming light and variable
late in the afternoon becoming west 5 to 10 knots late in the
evening. waves 2 to 4 feet subsiding to 2 feet or less late in
the afternoon. 
.tuesday...southwest winds 5 to 10 knots becoming south 10 to
15 knots early in the evening...then becoming southwest 5 to
10 knots by midnight. a chance of showers by midnight. waves
2 feet or less. 
.wednesday...west winds 5 to 10 knots becoming northwest 10 to
15 knots. a chance of showers. waves 1 to 3 feet. 


$$

fzus63 kdtx 150142
glflh 
expires:202608150945;;205188

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 pm edt fri aug 14 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...high pressure, 30.20 inches, currently centered over
northern lake huron will dominate the region through saturday
while sliding southeast through the eastern lakes. the next low
pressure system will pass through the region on saturday night
bringing the next thunderstorm chances.


lhz462>464-150945-
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-
942 pm edt fri aug 14 2026

.rest of tonight...northeast winds 5 to 10 knots. waves 1 to
3 feet. 
.saturday...east winds 5 to 10 knots in the morning becoming
light and variable...then becoming east 5 to 10 knots late in the
afternoon. waves 2 feet or less. 
.saturday night...east winds 5 to 10 knots becoming southeast
10 to 15 knots in the late evening and overnight. a chance of
showers after midnight. waves 1 to 3 feet. 
.sunday...south winds 10 to 15 knots becoming west 5 to 10 knots
early in the afternoon. a chance of showers in the morning...then
showers likely in the afternoon. waves 1 to 3 feet. 
.sunday night...northwest winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet
building to 3 to 5 feet after midnight. 
.monday...northwest winds 10 to 15 knots becoming light and
variable. waves 2 to 4 feet subsiding to 1 to 3 feet late in the
afternoon. 
.tuesday...southwest winds 5 to 10 knots becoming south 10 to
15 knots. a chance of showers by midnight. waves 2 feet or less. 
.wednesday...southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and early afternoon...then veering
to the northwest . showers likely. waves 1 to 3 feet. 


$$

fzus63 kmkx 150150
glflm 
expires:202608150930;;205496

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
850 pm cdt fri aug 14 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...

periods of showers and storms are expected to cross the southern 
half of lake michigan through sunday as a front remains stalled 
south over illinois and indiana. low pressure of 29.8 inches over 
kansas will track to the northeast and east toward southern lake 
michigan tonight into saturday. this low should help to bump up 
winds and waves across the southern two thirds of lake michigan 
into saturday. beyond this system, a broad ridge of high pressure 
of 30.1 inches will push into the great lakes early next week 
before another potential front moves through the region midweek. 


lmz080-671-673-675-777-779-872-874-876-878-150930-
lake michigan from michigan city in to st. joseph mi 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 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-
850 pm cdt fri aug 14 2026

port washington wi to whitehall mi south...

.rest of tonight...north winds 10 to 20 kt veering to southeast.
slight chance of showers and thunderstorms overnight. waves 2 to
4 ft. 
.saturday...southeast winds 10 to 20 kt. chance of showers and
thunderstorms. waves 3 to 5 ft. 
.saturday night...southeast winds 10 to 15 kt veering to west.
chance of showers overnight. waves 2 to 4 ft subsiding to 1 to
3 ft. 
.sunday...west winds 10 to 20 kt becoming northwest. chance of
showers. waves 1 to 3 ft. 
.sunday night...north winds 10 to 20 kt. waves 1 to 3 ft. 
.monday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.monday night...south winds 10 to 15 kt becoming southwest. waves
1 to 2 ft. 
.tuesday...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.wednesday...northwest winds 15 to 25 kt increasing to 30 kt.
chance of showers. waves 3 to 5 ft.  

$$

fzus63 kmkx 150150
glflm 
expires:202608150930;;205494

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
850 pm cdt fri aug 14 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...

periods of showers and storms are expected to cross the southern 
half of lake michigan through sunday as a front remains stalled 
south over illinois and indiana. low pressure of 29.8 inches over 
kansas will track to the northeast and east toward southern lake 
michigan tonight into saturday. this low should help to bump up 
winds and waves across the southern two thirds of lake michigan 
into saturday. beyond this system, a broad ridge of high pressure 
of 30.1 inches will push into the great lakes early next week 
before another potential front moves through the region midweek. 


lmz261-362-364-563-150930-
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 rock island passage to sturgeon bay wi-
850 pm cdt fri aug 14 2026

sturgeon bay wi to point betsie mi north...

.rest of tonight...northeast winds 10 to 15 kt becoming east.
waves 1 to 3 ft. 
.saturday...east winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.saturday night...east winds 10 to 20 kt veering to southwest
10 to 15 kt. chance of showers overnight. waves 1 to 3 ft. 
.sunday...west winds 10 to 20 kt becoming northwest 15 to 25 kt.
chance of showers in the morning. waves 1 to 2 ft building to
2 to 4 ft. 
.sunday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 2 to 4 ft. 
.monday...northwest winds 10 to 15 kt backing to southwest 10 to
20 kt. waves 1 to 2 ft. 
.monday night...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 2 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to 30 kt. waves
1 to 3 ft. 
.wednesday...north winds 15 to 25 kt becoming northwest to 30 kt.
chance of showers. waves 1 to 3 ft.  

$$

fzus63 kmkx 150150
glflm 
expires:202608150930;;205495

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
850 pm cdt fri aug 14 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...

periods of showers and storms are expected to cross the southern 
half of lake michigan through sunday as a front remains stalled 
south over illinois and indiana. low pressure of 29.8 inches over 
kansas will track to the northeast and east toward southern lake 
michigan tonight into saturday. this low should help to bump up 
winds and waves across the southern two thirds of lake michigan 
into saturday. beyond this system, a broad ridge of high pressure 
of 30.1 inches will push into the great lakes early next week 
before another potential front moves through the region midweek. 


lmz366-565-567-669-868-870-150930-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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 sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
850 pm cdt fri aug 14 2026

sturgeon bay wi to point betsie mi south to port washington wi to
whitehall mi...

.rest of tonight...northeast winds 10 to 20 kt becoming east.
slight chance of showers overnight. waves 3 to 5 ft. 
.saturday...southeast winds 10 to 20 kt. slight chance of
showers. waves 3 to 5 ft. 
.saturday night...southeast winds 10 to 20 kt veering to west
10 to 15 kt. chance of showers overnight. waves 2 to 4 ft
subsiding to 1 to 3 ft. 
.sunday...west winds 10 to 20 kt becoming northwest. waves 1 to
3 ft. 
.sunday night...north winds 10 to 20 kt. waves 1 to 3 ft. 
.monday...north winds 10 to 20 kt becoming west. waves 1 to 3 ft.
.monday night...south winds 10 to 15 kt becoming southwest. waves
1 to 2 ft. 
.tuesday...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.wednesday...northwest winds 15 to 25 kt becoming north to 30 kt.
chance of showers. waves 3 to 5 ft.  

$$

fzus63 kmqt 150201
glfls 
expires:202608150800;;205846

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri aug 14 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...

30.2 inch high pressure over lake superior eventually gives way to a 
29.9 inch low by tomorrow night as the aforementioned high moves 
east towards new england. this low deepens to 29.8 inches as it 
reaches the lower great lakes by sunday afternoon. sunday night into 
monday, a 30.1 inch high over the plains weakens to 30.0 inches as 
it slides generally south of lake superior. by tuesday, this high 
becomes centered south of the great lakes as a 29.4 inch low over 
hudson bay extends a 29.8 inch trough over lake superior. a second 
29.7 inch low moves through the great lakes region into southern 
ontario on wednesday. 




lsz162-150800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt fri aug 14 2026 /901 pm cdt fri aug 14 2026/

.rest of tonight...northeast winds 10 to 20 knots veering east
late. waves 1 to 3 feet subsiding to calm to 2 feet. 
.saturday...east winds 10 to 20 knots backing northeast late. a
chance of showers. waves calm to 2 feet. 
.saturday night...northeast winds 10 to 20 knots becoming north
5 to 15 knots after midnight, then backing west late. a slight
chance of showers through midnight. waves calm to 2 feet. 
.sunday...west winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.monday...west winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.monday night...southwest winds 5 to 15 knots veering west after
midnight. a chance of showers. waves calm to 2 feet. 
.tuesday...west winds 5 to 15 knots veering north. a chance of
showers. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202608150800;;205847

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri aug 14 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...

30.2 inch high pressure over lake superior eventually gives way to a 
29.9 inch low by tomorrow night as the aforementioned high moves 
east towards new england. this low deepens to 29.8 inches as it 
reaches the lower great lakes by sunday afternoon. sunday night into 
monday, a 30.1 inch high over the plains weakens to 30.0 inches as 
it slides generally south of lake superior. by tuesday, this high 
becomes centered south of the great lakes as a 29.4 inch low over 
hudson bay extends a 29.8 inch trough over lake superior. a second 
29.7 inch low moves through the great lakes region into southern 
ontario on wednesday. 




lsz263-150800-
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 edt fri aug 14 2026

.rest of tonight...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. a chance of showers by mid
afternoon. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots backing northwest
after midnight, then backing west late. a chance of showers and a
slight chance of thunderstorms through midnight. waves calm to
2 feet. 
.sunday...west winds 10 to 20 knots. a slight chance of showers
through early afternoon. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.monday...west winds 5 to 15 knots becoming southwest 15 to
25 knots by mid afternoon. waves building to 1 to 3 feet. 
.monday night...southwest winds 10 to 20 knots veering west after
midnight. a chance of showers. waves subsiding to calm to 2 feet.
.tuesday...west winds 5 to 15 knots veering north. a chance of
showers. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots backing west. waves calm
to 2 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202608150800;;205848

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri aug 14 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...

30.2 inch high pressure over lake superior eventually gives way to a 
29.9 inch low by tomorrow night as the aforementioned high moves 
east towards new england. this low deepens to 29.8 inches as it 
reaches the lower great lakes by sunday afternoon. sunday night into 
monday, a 30.1 inch high over the plains weakens to 30.0 inches as 
it slides generally south of lake superior. by tuesday, this high 
becomes centered south of the great lakes as a 29.4 inch low over 
hudson bay extends a 29.8 inch trough over lake superior. a second 
29.7 inch low moves through the great lakes region into southern 
ontario on wednesday. 




lsz264-150800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt fri aug 14 2026

.rest of tonight...southeast winds 5 to 15 knots backing east
after midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots increasing to 10 to 20 knots
late. a chance of showers by mid afternoon. waves calm to 2 feet.
.saturday night...southeast winds 5 to 15 knots veering northwest
late. showers likely through midnight, then a slight chance of
showers after midnight. waves calm to 2 feet. 
.sunday...northwest winds 10 to 20 knots backing west by mid
afternoon. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.monday...west winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.monday night...southwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.tuesday...west winds 5 to 15 knots veering north. a chance of
showers. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots backing west. waves calm
to 2 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202608150800;;205849

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri aug 14 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...

30.2 inch high pressure over lake superior eventually gives way to a 
29.9 inch low by tomorrow night as the aforementioned high moves 
east towards new england. this low deepens to 29.8 inches as it 
reaches the lower great lakes by sunday afternoon. sunday night into 
monday, a 30.1 inch high over the plains weakens to 30.0 inches as 
it slides generally south of lake superior. by tuesday, this high 
becomes centered south of the great lakes as a 29.4 inch low over 
hudson bay extends a 29.8 inch trough over lake superior. a second 
29.7 inch low moves through the great lakes region into southern 
ontario on wednesday. 




lsz265-150800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt fri aug 14 2026

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

$$

fzus63 kmqt 150201
glfls 
expires:202608150800;;205850

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri aug 14 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...

30.2 inch high pressure over lake superior eventually gives way to a 
29.9 inch low by tomorrow night as the aforementioned high moves 
east towards new england. this low deepens to 29.8 inches as it 
reaches the lower great lakes by sunday afternoon. sunday night into 
monday, a 30.1 inch high over the plains weakens to 30.0 inches as 
it slides generally south of lake superior. by tuesday, this high 
becomes centered south of the great lakes as a 29.4 inch low over 
hudson bay extends a 29.8 inch trough over lake superior. a second 
29.7 inch low moves through the great lakes region into southern 
ontario on wednesday. 




lsz266-150800-
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 edt fri aug 14 2026

.rest of tonight...north winds less than 10 knots becoming east
5 to 15 knots after midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. a slight chance of showers by mid afternoon.
waves building to 1 to 3 feet. 
.saturday night...southeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight, then veering south late. a chance
of showers and a slight chance of thunderstorms. waves subsiding
to calm to 2 feet. 
.sunday...northwest winds 20 to 30 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.sunday night...northwest winds 10 to 20 knots. waves subsiding
to calm to 2 feet. 
.monday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.monday night...south winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. waves calm to 2 feet. 
.tuesday...west winds 10 to 20 knots becoming north 5 to
15 knots. a chance of showers. waves calm to 2 feet. 
.wednesday...north winds 10 to 20 knots backing northwest. a
chance of showers. waves building to 1 to 3 feet, then subsiding
to calm to 2 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202608150800;;205851

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri aug 14 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...

30.2 inch high pressure over lake superior eventually gives way to a 
29.9 inch low by tomorrow night as the aforementioned high moves 
east towards new england. this low deepens to 29.8 inches as it 
reaches the lower great lakes by sunday afternoon. sunday night into 
monday, a 30.1 inch high over the plains weakens to 30.0 inches as 
it slides generally south of lake superior. by tuesday, this high 
becomes centered south of the great lakes as a 29.4 inch low over 
hudson bay extends a 29.8 inch trough over lake superior. a second 
29.7 inch low moves through the great lakes region into southern 
ontario on wednesday. 




lsz267-150800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt fri aug 14 2026

.rest of tonight...north winds 5 to 15 knots veering east late.
waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 10 to 20 knots. a chance of
showers through midnight, then showers likely and a slight chance
of thunderstorms after midnight. waves building to 1 to 3 feet,
then subsiding to calm to 2 feet. 
.sunday...west winds 10 to 20 knots becoming northwest 15 to
25 knots by mid afternoon. a slight chance of showers through
early afternoon. waves building to 3 to 5 feet occasionally to
7 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...west winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.tuesday...west winds 5 to 15 knots veering northwest. a chance
of showers. waves calm to 2 feet. 
.wednesday...north winds 10 to 20 knots backing northwest. a
chance of showers. waves building to 1 to 3 feet, then subsiding
to calm to 2 feet. 

$$