fzus61 kbuf 012002
glflo 
expires:202507020300;;712426

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue jul 1 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 29.2 inch low over northern quebec today will move 
east to the labrador coast through wednesday, with a weak trailing 
cold front crossing the lake this afternoon. a 30.0 inch high will 
build into the ohio valley tonight through wednesday. another weak 
cold front will move southeast across the lake thursday. a 30.1 inch 
high will then build into the ohio valley and great lakes friday 
before drifting to the eastern seaboard saturday.


loz063>065-020300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt tue jul 1 2025

.tonight...southwest winds 5 to 15 knots becoming west. waves
1 to 2 feet. 
.wednesday...west winds 10 to 15 knots. waves 1 to 2 feet. 
.wednesday night...west winds 5 to 10 knots. waves 1 to 2 feet. 
.thursday...west winds 10 to 15 knots. a chance of showers and
thunderstorms in the morning, then a chance of showers in the
afternoon. waves 1 to 2 feet. 
.thursday night...west winds 5 to 15 knots becoming northwest.
waves 1 to 2 feet. 
.friday...northwest winds 5 to 10 knots becoming south. waves
2 feet or less. 
.saturday...south winds 5 to 15 knots. waves 2 feet or less. 
.sunday...southwest winds 10 to 15 knots. a chance of showers
sunday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 012002
glflo 
expires:202507020300;;712425

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue jul 1 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 29.2 inch low over northern quebec today will move 
east to the labrador coast through wednesday, with a weak trailing 
cold front crossing the lake this afternoon. a 30.0 inch high will 
build into the ohio valley tonight through wednesday. another weak 
cold front will move southeast across the lake thursday. a 30.1 inch 
high will then build into the ohio valley and great lakes friday 
before drifting to the eastern seaboard saturday.


loz062-020300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt tue jul 1 2025

.tonight...west winds around 10 knots. waves 1 to 2 feet. 
.wednesday...west winds around 10 knots becoming southwest. waves
around 1 foot. 
.wednesday night...southwest winds around 10 knots becoming west.
a chance of showers and thunderstorms overnight. waves 1 to
2 feet. 
.thursday...west winds around 10 knots. a chance of showers and
thunderstorms in the morning. waves 1 to 2 feet. 
.thursday night...northwest winds 5 to 10 knots. waves 1 to
2 feet. 
.friday...northwest winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.saturday...south winds 5 to 15 knots becoming southwest. waves
2 feet or less. 
.sunday...southwest winds 10 to 15 knots. a chance of showers
sunday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 011937
glflh 
expires:202507020400;;711432

open lake forecast for lake huron
national weather service detroit/pontiac mi
337 pm edt tue jul 1 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 ridge of high pressure extends into the great lakes
from the midwest through early wednesday. a weak cold front
passes through late wednesday into thursday, then high pressure
builds directly across the region thursday night. a warm front
passes through on saturday with warmer and unsettled conditions
through the weekend.


lhz363-462>464-020400-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
337 pm edt tue jul 1 2025

.tonight...light and variable winds becoming southwest 5 to
10 knots after midnight. waves 2 feet or less. 
.wednesday...southwest winds 5 to 10 knots. a chance of showers
and thunderstorms in the afternoon. waves 2 feet or less. 
.wednesday night...southeast winds 5 to 10 knots veering to the
west after midnight. a chance of showers in the evening. waves
2 feet or less. 
.thursday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...light and variable winds. waves 2 feet or less.
.friday...light and variable winds becoming southeast 5 to
10 knots late in the morning...then becoming south 10 to 15 knots
late in the evening. waves 2 feet or less. 
.saturday...south winds 10 to 15 knots. waves 2 to 4 feet. 
.sunday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and early morning. a chance of
showers. waves 2 to 4 feet subsiding to 1 to 3 feet until early
morning. 


$$

fzus63 kdtx 011937
glfsc 
expires:202507020400;;711434

lake st clair forecast
national weather service detroit/pontiac mi
337 pm edt tue jul 1 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 ridge of high pressure extends into the great lakes
from the midwest through early wednesday. a weak cold front
passes through late wednesday into thursday, then high pressure
builds directly across the region thursday night. a warm front
passes through on saturday with warmer and unsettled conditions
through the weekend.


lcz460-020400-
lake st clair-
337 pm edt tue jul 1 2025

.tonight...northwest winds 5 to 10 knots. clear. waves 2 feet or
less.
.wednesday...northwest winds 5 to 10 knots backing to the southwest
in the late morning and afternoon. mostly sunny. waves 2 feet or
less.
.wednesday night...southwest winds 5 to 10 knots veering to the west
after midnight. mostly clear. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots. sunny. waves 2 feet or
less.
.thursday night...northeast winds 5 to 10 knots. clear. waves 2 feet
or less.
.friday...east winds 5 to 10 knots veering to the southeast in the
afternoon and evening. mostly clear. waves 2 feet or less.
.saturday...south winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.sunday...west winds 10 to 15 knots. partly cloudy. a chance of
showers and thunderstorms. waves 2 feet or less.

$$

fzus63 kdtx 011937
glflh 
expires:202507020400;;711431

open lake forecast for lake huron
national weather service detroit/pontiac mi
337 pm edt tue jul 1 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 ridge of high pressure extends into the great lakes
from the midwest through early wednesday. a weak cold front
passes through late wednesday into thursday, then high pressure
builds directly across the region thursday night. a warm front
passes through on saturday with warmer and unsettled conditions
through the weekend.


lhz361-362-020400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
337 pm edt tue jul 1 2025

.tonight...west winds 5 to 10 knots. waves 1 to 3 feet. 
.wednesday...southwest winds 5 to 10 knots backing to the
southeast late in the afternoon. waves 2 feet or less. 
.wednesday night...south winds 5 to 10 knots veering to the west
in the late evening and overnight. waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...north winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.friday...light and variable winds becoming southeast 5 to
10 knots late in the morning...then becoming south 10 to 15 knots
late in the evening. waves 2 feet or less. 
.saturday...south winds 10 to 15 knots. a chance of showers until
early morning. waves 3 to 5 feet. 
.sunday...southwest winds 10 to 15 knots becoming west 5 to
10 knots until early morning. a chance of showers. waves 2 to
4 feet subsiding to 1 to 3 feet until early morning. 


$$

fzus63 kmkx 011940
glflm 
expires:202507020315;;711504

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
240 pm cdt tue jul 1 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... 

light west to northwest winds continue through the afternoon,
turning southwest into this evening as weak high pressure around
30.0 inches crosses the mississippi river valley. light west to
southwest winds continue through wednesday evening. light winds 
thursday should become south friday and increase into saturday, as
a warm front pushes north through the region.

there will be chances for thunderstorms at times wednesday
afternoon and evening, as well as thursday evening and night. more
widespread chances for showers and thunderstorms expected late
saturday into saturday night as a cold front and low pressure
system cross the lake. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-020315-
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-
240 pm cdt tue jul 1 2025

sheboygan wi to pentwater mi south...

.tonight...south winds 5 to 10 kt becoming west. waves 1 to 2 ft.
.wednesday...west winds 5 to 10 kt becoming southwest 10 to
15 kt. waves 1 to 2 ft. 
.wednesday night...southwest winds 10 to 15 kt becoming northwest
5 to 10 kt. waves 1 to 2 ft. 
.thursday...northwest winds 5 to 10 kt backing to southeast 10 to
15 kt. waves 1 ft or less. 
.thursday night...southeast winds 5 to 10 kt becoming south.
waves 1 ft or less. 
.friday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.friday night...south winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 2 to 4 ft. 
.saturday...south winds 15 to 25 kt. waves 3 to 5 ft. 
.sunday...southwest winds 10 to 20 kt becoming west. chance of
showers. waves 3 to 5 ft.  

$$

fzus63 kmkx 011940
glflm 
expires:202507020315;;711503

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
240 pm cdt tue jul 1 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... 

light west to northwest winds continue through the afternoon,
turning southwest into this evening as weak high pressure around
30.0 inches crosses the mississippi river valley. light west to
southwest winds continue through wednesday evening. light winds 
thursday should become south friday and increase into saturday, as
a warm front pushes north through the region.

there will be chances for thunderstorms at times wednesday
afternoon and evening, as well as thursday evening and night. more
widespread chances for showers and thunderstorms expected late
saturday into saturday night as a cold front and low pressure
system cross the lake. 


lmz261-362-364-366-563-565-567-868-020315-
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-
240 pm cdt tue jul 1 2025

sheboygan wi to pentwater mi north...

.tonight...southwest winds 10 to 15 kt becoming west. waves 1 to
2 ft. 
.wednesday...west winds 10 to 15 kt becoming southwest. slight
chance of showers and thunderstorms in the afternoon. waves 1 to
2 ft. 
.wednesday night...southwest winds 10 to 15 kt becoming northwest
5 to 10 kt. waves 1 to 2 ft. 
.thursday...north winds 5 to 10 kt becoming northeast 10 to
15 kt. waves 1 ft or less. 
.thursday night...east winds 5 to 10 kt becoming southeast. waves
1 ft or less. 
.friday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.friday night...south winds 10 to 20 kt becoming southwest. waves
2 to 4 ft. 
.saturday...south winds 15 to 25 kt increasing to 30 kt. waves
3 to 5 ft. 
.sunday...southwest winds 10 to 20 kt becoming west. chance of
showers. waves 2 to 4 ft.  

$$

fzus63 kmqt 012002
glfls 
expires:202507020800;;712414

open lake forecast for lake superior
national weather service marquette mi
402 pm edt tue jul 1 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 remains over lake superior tonight as the lake 
becomes sandwiched between a 30.0 inch high building over the 
central plains and a low over quebec deepening from 29.5 to 29.3 
inches. 30.0 inch ridging then passes southeast over the upper great 
lakes thursday into friday. then, low pressure emerging from the 
northern rockies into central canada brings a 29.6 inch trough 
through lake superior saturday into sunday.



lsz162-020800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
402 pm edt tue jul 1 2025 /302 pm cdt tue jul 1 2025/

.late this afternoon...southwest winds 15 to 25 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
late. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots becoming southwest 10 to
20 knots in the afternoon. a chance of showers and a slight
chance of thunderstorms. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots veering northeast
after midnight. a slight chance of showers through midnight.
waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a chance of showers and thunderstorms. waves
calm to 2 feet. 
.friday night...south winds 10 to 20 knots veering southwest
after midnight. a chance of showers through midnight. a chance of
thunderstorms. showers likely after midnight. waves calm to
2 feet. 
.saturday...southwest winds 10 to 20 knots veering north.
showers. a chance of thunderstorms. a chance of showers. waves
calm to 2 feet. 
.sunday...north winds 10 to 20 knots becoming northwest 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 012002
glfls 
expires:202507020800;;712415

open lake forecast for lake superior
national weather service marquette mi
402 pm edt tue jul 1 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 remains over lake superior tonight as the lake 
becomes sandwiched between a 30.0 inch high building over the 
central plains and a low over quebec deepening from 29.5 to 29.3 
inches. 30.0 inch ridging then passes southeast over the upper great 
lakes thursday into friday. then, low pressure emerging from the 
northern rockies into central canada brings a 29.6 inch trough 
through lake superior saturday into sunday.



lsz263-020800-
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-
402 pm edt tue jul 1 2025

.late this afternoon...southwest winds 15 to 25 knots. a slight
chance of showers. waves 2 to 4 feet. 
.tonight...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 late. a
slight chance of showers. a slight chance of thunderstorms by mid
afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots backing southeast by mid
afternoon. a chance of showers. waves calm to 2 feet. 
.friday night...south winds 10 to 20 knots veering southwest
after midnight. a chance of showers through midnight. showers
likely after midnight. waves building to 1 to 3 feet. 
.saturday...southwest winds 5 to 15 knots veering north. showers.
a chance of thunderstorms. a chance of showers. waves subsiding
to calm to 2 feet. 
.sunday...north winds 5 to 15 knots backing northwest. waves calm
to 2 feet. 

$$

fzus63 kmqt 012002
glfls 
expires:202507020800;;712416

open lake forecast for lake superior
national weather service marquette mi
402 pm edt tue jul 1 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 remains over lake superior tonight as the lake 
becomes sandwiched between a 30.0 inch high building over the 
central plains and a low over quebec deepening from 29.5 to 29.3 
inches. 30.0 inch ridging then passes southeast over the upper great 
lakes thursday into friday. then, low pressure emerging from the 
northern rockies into central canada brings a 29.6 inch trough 
through lake superior saturday into sunday.



lsz264-020800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
402 pm edt tue jul 1 2025

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

$$

fzus63 kmqt 012002
glfls 
expires:202507020800;;712417

open lake forecast for lake superior
national weather service marquette mi
402 pm edt tue jul 1 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 remains over lake superior tonight as the lake 
becomes sandwiched between a 30.0 inch high building over the 
central plains and a low over quebec deepening from 29.5 to 29.3 
inches. 30.0 inch ridging then passes southeast over the upper great 
lakes thursday into friday. then, low pressure emerging from the 
northern rockies into central canada brings a 29.6 inch trough 
through lake superior saturday into sunday.



lsz265-020800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
402 pm edt tue jul 1 2025

.late this afternoon...west winds 10 to 20 knots. waves calm to
2 feet. 
.tonight...west winds 10 to 20 knots. waves calm to 2 feet. 
.wednesday...west winds 10 to 20 knots veering northwest in the
afternoon, then backing west late. a slight chance of showers by
mid afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 5 to 15 knots veering north
after midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves calm to 2 feet. 
.friday...southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves calm to 2 feet. 
.friday night...south winds 15 to 25 knots becoming southwest
10 to 20 knots after midnight. a chance of showers. waves calm to
2 feet. 
.saturday...south winds 15 to 25 knots becoming southwest 10 to
20 knots. a chance of showers. a chance of thunderstorms. showers
likely. waves calm to 2 feet. 
.sunday...north winds 10 to 20 knots becoming northwest 5 to
15 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 012002
glfls 
expires:202507020800;;712418

open lake forecast for lake superior
national weather service marquette mi
402 pm edt tue jul 1 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 remains over lake superior tonight as the lake 
becomes sandwiched between a 30.0 inch high building over the 
central plains and a low over quebec deepening from 29.5 to 29.3 
inches. 30.0 inch ridging then passes southeast over the upper great 
lakes thursday into friday. then, low pressure emerging from the 
northern rockies into central canada brings a 29.6 inch trough 
through lake superior saturday into sunday.



lsz266-020800-
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-
402 pm edt tue jul 1 2025

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

$$

fzus63 kmqt 012002
glfls 
expires:202507020800;;712419

open lake forecast for lake superior
national weather service marquette mi
402 pm edt tue jul 1 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 remains over lake superior tonight as the lake 
becomes sandwiched between a 30.0 inch high building over the 
central plains and a low over quebec deepening from 29.5 to 29.3 
inches. 30.0 inch ridging then passes southeast over the upper great 
lakes thursday into friday. then, low pressure emerging from the 
northern rockies into central canada brings a 29.6 inch trough 
through lake superior saturday into sunday.



lsz267-020800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
402 pm edt tue jul 1 2025

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

$$