fzus61 kbuf 022003
glflo 
expires:202608030300;;515266

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt sun aug 2 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...an elongated 29.7 inch low will continue to move into 
the lower great lakes tonight, with a remnant trough drifting 
towards new england monday. a 30.0 inch high will then build east 
across ontario and quebec monday through tuesday.


loz063>065-030300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 pm edt sun aug 2 2026

.tonight...southeast winds 15 to 20 knots becoming southwest.
showers with a chance of thunderstorms. waves 2 to 4 feet. 
.monday...northwest winds 15 to 20 knots becoming west. a chance
of showers through early afternoon. waves 2 to 4 feet building to
3 to 5 feet. 
.monday night...west winds 15 to 20 knots becoming northwest 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...west winds 5 to 10 knots. waves 2 feet or less. 
.tuesday night...southeast winds 10 knots or less becoming south.
waves 1 foot or less. 
.wednesday...south winds 10 knots or less. a chance of showers
wednesday night. waves 1 foot or less. 
.thursday...south winds 10 knots or less becoming west. a chance
of showers and thunderstorms. waves 1 foot or less. 
.friday...west winds 10 knots or less becoming southwest. a
chance of showers. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 022003
glflo 
expires:202608030300;;515265

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt sun aug 2 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...an elongated 29.7 inch low will continue to move into 
the lower great lakes tonight, with a remnant trough drifting 
towards new england monday. a 30.0 inch high will then build east 
across ontario and quebec monday through tuesday.


loz062-030300-
lake ontario open waters from the niagara river to hamlin beach-
403 pm edt sun aug 2 2026

.tonight...northeast winds 10 to 15 knots becoming northwest
15 to 20 knots. showers with thunderstorms likely early, then
showers with a chance of thunderstorms late this evening. a
chance of showers after midnight. waves 1 to 3 feet building to
2 to 4 feet. 
.monday...northwest winds 15 to 20 knots becoming west. a chance
of showers early. waves 2 to 4 feet. 
.monday night...west winds 5 to 15 knots. waves 1 to 3 feet
subsiding to 1 foot or less. 
.tuesday...west winds less than 10 knots. waves 1 foot or less. 
.tuesday night...southeast winds 10 knots or less becoming south.
waves 1 foot or less. 
.wednesday...south winds less than 10 knots becoming southwest.
waves 1 foot or less. 
.thursday...southwest winds less than 10 knots becoming west. a
chance of showers thursday night. waves 1 foot or less. 
.friday...west winds less than 10 knots becoming southwest. a
chance of showers. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 021957
glfle 
expires:202608030215;;514862

open lake forecast for lake erie
national weather service cleveland oh
357 pm edt sun aug 2 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...
low pressure 29.70 inches will move east just to the south of the
lake through tonight before exiting to the northeast early monday.
high pressure 30.00 inches will build over the region monday
through tuesday. low pressure 29.90 inches will cross the lake on
wednesday with a slow-moving frontal boundary approaching from 
the west thursday and friday.


lez162>164-030215-
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-
357 pm edt sun aug 2 2026

.tonight...north winds 15 to 20 knots. a chance of showers and
thunderstorms early. waves 3 to 5 feet. 
.monday...north winds 5 to 15 knots becoming northeast. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.monday night...northeast winds 5 to 10 knots becoming southeast.
waves 2 feet or less. 
.tuesday...south winds less than 10 knots becoming east. waves
1 foot or less. 
.tuesday night...east winds less than 10 knots becoming south.
waves 1 foot or less. 
.wednesday...southwest winds 10 knots or less. waves 1 foot or
less. 
.thursday...southwest winds 10 knots or less. a chance of showers
and thunderstorms during the day, then showers likely with a
chance of thunderstorms thursday night. waves 1 foot or less. 
.friday...west winds 5 to 10 knots becoming southwest. a chance
of showers. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 021957
glfle 
expires:202608030215;;514863

open lake forecast for lake erie
national weather service cleveland oh
357 pm edt sun aug 2 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...
low pressure 29.70 inches will move east just to the south of the
lake through tonight before exiting to the northeast early monday.
high pressure 30.00 inches will build over the region monday
through tuesday. low pressure 29.90 inches will cross the lake on
wednesday with a slow-moving frontal boundary approaching from 
the west thursday and friday.


lez165>167-030215-
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-
357 pm edt sun aug 2 2026

.tonight...north winds 15 to 20 knots. showers likely with a
chance of thunderstorms early, then a slight chance of showers
and thunderstorms late this evening. waves 3 to 5 feet. 
.monday...north winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday night...north winds 5 to 10 knots becoming east. waves
1 to 2 feet. 
.tuesday...south winds 10 knots or less becoming northeast. waves
around 1 foot. 
.tuesday night...northeast winds 5 to 10 knots becoming
southeast. waves 1 foot or less. 
.wednesday...west winds 10 knots or less becoming south. waves
1 foot or less. 
.thursday...southwest winds 5 to 10 knots. showers likely with a
chance of thunderstorms thursday night. waves 1 foot or less. 
.friday...southwest winds 5 to 10 knots. a chance of showers.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 021957
glfle 
expires:202608030215;;514864

open lake forecast for lake erie
national weather service cleveland oh
357 pm edt sun aug 2 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...
low pressure 29.70 inches will move east just to the south of the
lake through tonight before exiting to the northeast early monday.
high pressure 30.00 inches will build over the region monday
through tuesday. low pressure 29.90 inches will cross the lake on
wednesday with a slow-moving frontal boundary approaching from 
the west thursday and friday.


lez061-168-169-030215-
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-
357 pm edt sun aug 2 2026

.tonight...north winds 15 to 20 knots. showers with a chance of
thunderstorms this evening, then a chance of showers with a
slight chance of thunderstorms after midnight. waves 1 to 3 feet
building to 2 to 4 feet. 
.monday...north winds 5 to 15 knots becoming west. waves 1 to
3 feet. 
.monday night...northwest winds 10 knots or less becoming east.
waves 1 foot or less. 
.tuesday...south winds less than 10 knots becoming north. waves
1 foot or less. 
.tuesday night...northeast winds 10 knots or less becoming south.
waves 1 foot or less. 
.wednesday...south winds 10 knots or less. waves 1 foot or less. 
.thursday...southwest winds 10 knots or less. showers likely with
a chance of thunderstorms thursday night. waves 1 foot or less. 
.friday...southwest winds 10 knots or less. a chance of showers.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 021955
glfsc 
expires:202608030400;;514811

lake st clair forecast
national weather service detroit/pontiac mi
355 pm edt sun aug 2 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...low pressure, 29.70 inches, exits the ohio valley 
into appalachia tonight. the chance for additional showers and 
thunderstorms wanes this evening as the main axis of showers 
clears east. high pressure influence then builds into the region 
overnight and into monday offering drier weather and weaker winds.


lcz460-030400-
lake st clair-
355 pm edt sun aug 2 2026

...small craft advisory in effect through late tonight...

.tonight...north winds 20 to 25 knots diminishing to 15 to 20 knots
after midnight. mostly cloudy becoming partly cloudy by midnight
becoming clear. a chance of light showers early in the evening.
waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.
.monday...north winds 10 to 15 knots becoming northeast 5 to 10
knots late in the afternoon. sunny. waves 2 feet or less.
.monday night...northeast winds 5 to 10 knots becoming light and
variable. clear. waves 2 feet or less.
.tuesday...light and variable winds becoming southeast 5 to 10 knots
in the late morning and afternoon. sunny. waves 2 feet or less.
.tuesday night...south winds 5 to 10 knots. clear. waves 2 feet or
less.
.wednesday...light and variable winds becoming south 5 to 10 knots
in the afternoon and evening. mostly sunny becoming sunny in the
afternoon becoming mostly clear. waves 2 feet or less.
.thursday...south winds 5 to 10 knots. partly cloudy. showers likely
and a chance of thunderstorms. waves 2 feet or less.
.friday...south winds 5 to 10 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$

fzus63 kdtx 021954
glflh 
expires:202608030400;;514808

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 pm edt sun aug 2 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...low pressure, 29.70 inches, exits the ohio valley 
into appalachia tonight. the chance for additional showers and 
thunderstorms wanes this evening as the main axis of showers 
clears east. high pressure influence then builds into the region 
overnight and into monday offering drier weather and weaker winds.


lhz462>464-030400-
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-
354 pm edt sun aug 2 2026

.tonight...north winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots after midnight. waves 4 to
6 feet. waves occasionally around 8 feet. 
.monday...north winds 10 to 15 knots. waves 2 to 4 feet. 
.monday night...light and variable winds. waves 1 to 3 feet. 
.tuesday...south winds 5 to 10 knots. waves 2 feet or less. 
.tuesday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots by midnight...then decreasing to 5 to 10 knots
after midnight. waves 2 feet or less. 
.wednesday...south winds 5 to 10 knots backing to the southeast
late in the afternoon...then backing to the north late in the
evening. a chance of showers late in the evening. waves 2 feet or
less. 
.thursday...north winds 5 to 10 knots becoming light and
variable. a chance of showers. waves 2 feet or less. 
.friday...light and variable winds becoming south 5 to 10 knots
in the late morning and early afternoon...then backing to the
east early in the evening veering to the south by midnight. waves
2 feet or less. 


$$

fzus63 kdtx 021954
glflh 
expires:202608030400;;514807

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 pm edt sun aug 2 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...low pressure, 29.70 inches, exits the ohio valley 
into appalachia tonight. the chance for additional showers and 
thunderstorms wanes this evening as the main axis of showers 
clears east. high pressure influence then builds into the region 
overnight and into monday offering drier weather and weaker winds.


lhz362-363-030400-
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-
354 pm edt sun aug 2 2026

.tonight...north winds 10 to 15 knots decreasing to 5 to 10 knots
by midnight...then increasing to 10 to 15 knots early in the
morning. waves 4 to 6 feet subsiding to 1 to 3 feet. waves
occasionally around 8 feet. 
.monday...north winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and afternoon. waves 1 to 3 feet. 
.monday night...light and variable winds becoming south 5 to
10 knots after midnight. waves 2 feet or less. 
.tuesday...southwest winds 5 to 10 knots becoming south 10 to
15 knots early in the afternoon. waves 2 feet or less building to
3 to 5 feet early in the afternoon. 
.tuesday night...south winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 3 to 5 feet subsiding to 2 to
4 feet after midnight. 
.wednesday...south winds 5 to 10 knots becoming light and
variable. a chance of showers. waves 2 feet or less. 
.thursday...light and variable winds. a chance of showers early
in the morning. waves 2 feet or less. 
.friday...light and variable winds becoming south 5 to 10 knots.
waves 2 feet or less. 


$$

fzus63 kdtx 021954
glflh 
expires:202608030400;;514806

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 pm edt sun aug 2 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...low pressure, 29.70 inches, exits the ohio valley 
into appalachia tonight. the chance for additional showers and 
thunderstorms wanes this evening as the main axis of showers 
clears east. high pressure influence then builds into the region 
overnight and into monday offering drier weather and weaker winds.


lhz361-030400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
354 pm edt sun aug 2 2026

.tonight...light and variable winds becoming north 5 to 10 knots
in the late evening and overnight. waves 2 feet or less. 
.monday...north winds 5 to 10 knots in the morning becoming light
and variable...then becoming southwest 5 to 10 knots late in the
afternoon. waves 2 feet or less. 
.monday night...light and variable winds becoming west 5 to
10 knots by midnight...then backing to the south after midnight.
waves 2 feet or less. 
.tuesday...south winds 5 to 10 knots backing to the southeast
early in the afternoon. waves 1 to 3 feet. 
.tuesday night...east winds 5 to 10 knots early in the evening
becoming light and variable...then becoming southwest 5 to
10 knots after midnight. a chance of showers after midnight.
waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. 
.wednesday...southwest winds 5 to 10 knots in the morning
becoming light and variable. a chance of showers. a chance of
thunderstorms late in the morning. waves 2 feet or less. 
.thursday...light and variable winds becoming south 5 to 10 knots
by midnight. waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots backing to the south .
waves 2 feet or less. 


$$

fzus63 kmkx 022000
glflm 
expires:202608030315;;514968

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
300 pm cdt sun aug 2 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...

breezy north winds and high waves are expected today and this 
evening over central and southern lake michigan. this will occur as 
low pressure around 29.7 inches near ohio moves slowly into the
lower great lakes and mid atlantic conus, while a ridge of high
pressure around 30.0 inches stretches from james bay to lake 
superior to the upper mississippi river valley. winds will 
gradually diminish late tonight. high pressure around 30.0 
inches then builds across lake michigan on monday and slowly 
moves toward the lower great lakes monday night. winds remain 
light and variable through this time. next chances for 
thunderstorms return tuesday night through wednesday night as a 
weak front moves southward through the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-030315-
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-
300 pm cdt sun aug 2 2026

sheboygan wi to pentwater mi south...

.tonight...north winds to 30 kt diminishing to 15 to 25 kt late
this evening, then becoming northeast 10 to 20 kt after midnight
diminishing to 10 to 15 kt late. waves 7 to 10 ft occasionally to
13 ft subsiding to 3 to 5 ft. 
.monday...northeast winds 5 to 10 kt becoming north 10 to 15 kt.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.monday night...northeast winds 10 to 15 kt veering to south 5 to
10 kt. waves 1 to 2 ft. 
.tuesday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.tuesday night...south winds 10 to 20 kt becoming southwest 10 to
15 kt. chance of showers overnight. waves 3 to 5 ft subsiding to
2 to 4 ft. 
.wednesday...west winds 10 to 15 kt becoming southwest. chance of
showers. waves 1 to 3 ft. 
.wednesday night...east winds 5 to 10 kt veering to southwest.
showers likely with a chance of thunderstorms. waves 1 to 2 ft.
.thursday...north winds 5 to 10 kt increasing to 10 to 15 kt.
chance of showers. waves 1 ft or less. 
.friday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 022000
glflm 
expires:202608030315;;514967

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
300 pm cdt sun aug 2 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...

breezy north winds and high waves are expected today and this 
evening over central and southern lake michigan. this will occur as 
low pressure around 29.7 inches near ohio moves slowly into the
lower great lakes and mid atlantic conus, while a ridge of high
pressure around 30.0 inches stretches from james bay to lake 
superior to the upper mississippi river valley. winds will 
gradually diminish late tonight. high pressure around 30.0 
inches then builds across lake michigan on monday and slowly 
moves toward the lower great lakes monday night. winds remain 
light and variable through this time. next chances for 
thunderstorms return tuesday night through wednesday night as a 
weak front moves southward through the region.


lmz261-362-364-366-563-565-567-868-030315-
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-
300 pm cdt sun aug 2 2026

sheboygan wi to pentwater mi north...

.tonight...north winds to 30 kt becoming northeast 5 to 10 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 1 to 3 ft. 
.monday...northeast winds 5 to 10 kt backing to southwest. waves
1 to 2 ft. 
.monday night...south winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
2 to 4 ft building to 3 to 5 ft. 
.tuesday night...southwest winds 15 to 25 kt diminishing to 10 to
15 kt overnight. chance of showers in the evening, then showers
likely overnight. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday...northwest winds 10 to 15 kt becoming west. chance of
showers in the morning. waves 1 to 3 ft. 
.wednesday night...east winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 ft or less. 
.thursday...south winds 10 to 15 kt becoming southwest. waves
1 to 2 ft. 
.friday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft.  

$$

fzus63 kmqt 022001
glfls 
expires:202608030800;;515106

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun aug 2 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...

ridging of around 30.0 inches over lake superior persists into 
monday as a 29.7 inch low over the ohio river valley today tracks 
into southern quebec and deepens to 29.5 inches by monday afternoon. 
a 29.8 inch trough moves over the lake monday night into tuesday as 
a 29.4 inch low tracks over hudson bay. ridging returns on wednesday 
as 30.0 inch high pressure builds into the great lakes from the 
northern plains.




lsz162-030800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt sun aug 2 2026 /301 pm cdt sun aug 2 2026/

.late this afternoon...northeast winds 10 to 20 knots. waves calm
to 2 feet. 
.tonight...northeast winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering east late. waves calm to
2 feet. 
.monday...east winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots becoming south 10 to
20 knots after midnight, then becoming southwest 15 to 25 knots
late. a chance of showers and a slight chance of thunderstorms
after midnight. waves building to 2 to 4 feet. 
.tuesday...west winds 15 to 25 knots backing southwest by mid
afternoon. a slight chance of showers through early afternoon.
waves subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.tuesday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 
.friday...southwest winds 10 to 20 knots veering west. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 022001
glfls 
expires:202608030800;;515107

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun aug 2 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...

ridging of around 30.0 inches over lake superior persists into 
monday as a 29.7 inch low over the ohio river valley today tracks 
into southern quebec and deepens to 29.5 inches by monday afternoon. 
a 29.8 inch trough moves over the lake monday night into tuesday as 
a 29.4 inch low tracks over hudson bay. ridging returns on wednesday 
as 30.0 inch high pressure builds into the great lakes from the 
northern plains.




lsz263-030800-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
401 pm edt sun aug 2 2026

.late this afternoon...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots veering southeast late. waves
calm to 2 feet. 
.monday...south winds 5 to 15 knots backing east late. waves calm
to 2 feet. 
.monday night...southeast winds 10 to 20 knots becoming south
15 to 25 knots after midnight. a slight chance of showers after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...southwest winds 15 to 25 knots. a slight chance of
showers through early afternoon. waves subsiding to 2 to 4 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...west winds 15 to 25 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 10 to 20 knots backing southwest by mid
afternoon. waves building to 1 to 3 feet. 
.wednesday night...south winds 10 to 20 knots becoming southwest
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...southwest 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. 
.friday...southwest winds 15 to 25 knots becoming west 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 022001
glfls 
expires:202608030800;;515108

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun aug 2 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...

ridging of around 30.0 inches over lake superior persists into 
monday as a 29.7 inch low over the ohio river valley today tracks 
into southern quebec and deepens to 29.5 inches by monday afternoon. 
a 29.8 inch trough moves over the lake monday night into tuesday as 
a 29.4 inch low tracks over hudson bay. ridging returns on wednesday 
as 30.0 inch high pressure builds into the great lakes from the 
northern plains.




lsz264-030800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt sun aug 2 2026

.late this afternoon...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...northwest winds less than 10 knots backing southeast
after midnight, then increasing to 5 to 15 knots late. waves calm
to 2 feet. 
.monday...south winds 5 to 15 knots backing southeast in the
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots veering south
after midnight, then increasing to 15 to 25 knots late. a slight
chance of showers after midnight. waves building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots. a chance of showers
through early afternoon. waves 2 to 4 feet. 
.tuesday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 
.friday...southwest winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 022001
glfls 
expires:202608030800;;515109

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun aug 2 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...

ridging of around 30.0 inches over lake superior persists into 
monday as a 29.7 inch low over the ohio river valley today tracks 
into southern quebec and deepens to 29.5 inches by monday afternoon. 
a 29.8 inch trough moves over the lake monday night into tuesday as 
a 29.4 inch low tracks over hudson bay. ridging returns on wednesday 
as 30.0 inch high pressure builds into the great lakes from the 
northern plains.




lsz265-030800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt sun aug 2 2026

.late this afternoon...north winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...north winds 5 to 15 knots veering south late. waves
calm to 2 feet. 
.monday...south winds 5 to 15 knots backing southeast in the
afternoon, then increasing to 15 to 25 knots late. waves calm to
2 feet. 
.monday night...southeast winds 15 to 25 knots veering south
after midnight. waves building to 1 to 3 feet. 
.tuesday...south winds 15 to 25 knots veering west by mid
afternoon. a chance of showers. a slight chance of thunderstorms
by mid afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...west winds 10 to 20 knots. waves calm to 2 feet.
.wednesday...west winds 10 to 20 knots. waves calm to 2 feet. 
.wednesday night...south winds 10 to 20 knots. waves calm to
2 feet. 
.thursday...south winds 10 to 20 knots becoming southwest 15 to
25 knots. waves calm to 2 feet. 
.friday...southwest winds 10 to 20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 022001
glfls 
expires:202608030800;;515110

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun aug 2 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...

ridging of around 30.0 inches over lake superior persists into 
monday as a 29.7 inch low over the ohio river valley today tracks 
into southern quebec and deepens to 29.5 inches by monday afternoon. 
a 29.8 inch trough moves over the lake monday night into tuesday as 
a 29.4 inch low tracks over hudson bay. ridging returns on wednesday 
as 30.0 inch high pressure builds into the great lakes from the 
northern plains.




lsz266-030800-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
401 pm edt sun aug 2 2026

.late this afternoon...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...north winds 5 to 15 knots veering east late. waves
calm to 2 feet. 
.monday...south winds 5 to 15 knots backing southeast in the
afternoon, then increasing to 10 to 20 knots late. waves calm to
2 feet. 
.monday night...southeast winds 15 to 25 knots veering south
after midnight, then increasing to 20 to 30 knots late. waves
building to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots becoming west 10 to
20 knots by mid afternoon. a chance of showers. a slight chance
of thunderstorms by mid afternoon. waves 2 to 4 feet. 
.tuesday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.wednesday...west winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots becoming southwest 10 to
20 knots. waves building to 1 to 3 feet. 
.friday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 022001
glfls 
expires:202608030800;;515111

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun aug 2 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...

ridging of around 30.0 inches over lake superior persists into 
monday as a 29.7 inch low over the ohio river valley today tracks 
into southern quebec and deepens to 29.5 inches by monday afternoon. 
a 29.8 inch trough moves over the lake monday night into tuesday as 
a 29.4 inch low tracks over hudson bay. ridging returns on wednesday 
as 30.0 inch high pressure builds into the great lakes from the 
northern plains.




lsz267-030800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt sun aug 2 2026

.late this afternoon...north winds 10 to 20 knots. waves calm to
2 feet. 
.tonight...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering northeast late. waves calm
to 2 feet. 
.monday...east winds 5 to 15 knots becoming south less than
10 knots in the afternoon, then becoming east 5 to 15 knots late.
waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves building to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest 10 to
20 knots by mid afternoon. a chance of showers and a slight
chance of thunderstorms by mid afternoon. waves subsiding to calm
to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots veering west after
midnight. a chance of showers. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...south winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 
.friday...southwest winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 

$$