fzus61 kbuf 091402
glflo 
expires:202507092100;;146024

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt wed jul 9 2025

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.1 inch high will build across the lower great lakes 
today. a broad 29.9 inch surface low will then track across the mid-
atlantic states thursday and friday. a 29.7 inch low will lift north 
of the central great lake saturday, bringing a cold front to the 
western waters of the lake by saturday evening.


loz063>065-092100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt wed jul 9 2025

.this afternoon...southwest winds less than 10 knots becoming
north. waves 1 foot or less. 
.tonight...east winds less than 10 knots becoming south. a chance
of showers late in the evening. a chance of showers and
thunderstorms after midnight. 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. 
.thursday night...southwest winds less than 10 knots. waves
1 foot or less. 
.friday...west winds 10 knots or less becoming south. waves
1 foot or less. 
.saturday...southeast winds 10 knots or less becoming south 10 to
15 knots. a chance of showers saturday night. waves 2 feet or
less. 
.sunday...southwest winds 5 to 15 knots becoming west. showers
likely with a chance of thunderstorms. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 091402
glflo 
expires:202507092100;;146023

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt wed jul 9 2025

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.1 inch high will build across the lower great lakes 
today. a broad 29.9 inch surface low will then track across the mid-
atlantic states thursday and friday. a 29.7 inch low will lift north 
of the central great lake saturday, bringing a cold front to the 
western waters of the lake by saturday evening.


loz062-092100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt wed jul 9 2025

.this afternoon...southwest winds less than 10 knots becoming
south. a chance of showers and thunderstorms late. waves 1 foot
or less. 
.tonight...southeast winds less than 10 knots becoming southwest.
a chance of showers and thunderstorms in the evening. waves
1 foot or less. 
.thursday...southwest winds 5 to 10 knots. waves 1 foot or less. 
.thursday night...south winds less than 10 knots becoming
northwest. waves 1 foot or less. 
.friday...northwest winds less than 10 knots becoming south.
waves 1 foot or less. 
.saturday...southeast winds 5 to 10 knots becoming south. a
chance of showers saturday night. waves 1 foot or less. 
.sunday...southwest winds 5 to 10 knots becoming west. a chance
of showers and thunderstorms. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 091330
glfle 
expires:202507092015;;144886

open lake forecast for lake erie
national weather service cleveland oh
930 am edt wed jul 9 2025

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a weak cold front will cross lake erie on thursday. this front
will then stall over the ohio valley friday and generally remain
just south of lake erie through much of the weekend. low pressure
29.70 inches will move northeast through the upper great lakes on
saturday into sunday, extending a cold front east through the area
on sunday.


lez162-163-092015-
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-
930 am edt wed jul 9 2025

.rest of today...south winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms, then showers likely with a
chance of thunderstorms late. waves 1 foot or less. 
.tonight...south winds 5 to 10 knots becoming west. a chance of
showers and thunderstorms early, then a slight chance of showers
and thunderstorms late in the evening. waves 1 foot or less. 
.thursday...northwest winds 10 knots or less becoming east. waves
1 foot or less. 
.thursday night...east winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.friday...southeast winds 10 knots or less becoming south. waves
1 foot or less. 
.saturday...south winds around 10 knots becoming west. a chance
of showers and thunderstorms. waves 1 foot or less. 
.sunday...west winds 5 to 10 knots. a chance of showers and
thunderstorms during the day. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 091330
glfle 
expires:202507092015;;144888

open lake forecast for lake erie
national weather service cleveland oh
930 am edt wed jul 9 2025

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a weak cold front will cross lake erie on thursday. this front
will then stall over the ohio valley friday and generally remain
just south of lake erie through much of the weekend. low pressure
29.70 inches will move northeast through the upper great lakes on
saturday into sunday, extending a cold front east through the area
on sunday.


lez061-168-169-092015-
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-
930 am edt wed jul 9 2025

.rest of today...south winds less than 10 knots becoming east. a
slight chance of showers late this morning, then a slight chance
of showers and thunderstorms this afternoon. waves 1 foot or
less. 
.tonight...east winds less than 10 knots becoming south. a slight
chance of showers and thunderstorms. waves 1 foot or less. 
.thursday...south winds less than 10 knots becoming northwest.
waves 1 foot or less. 
.thursday night...west winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.friday...northeast winds less than 10 knots becoming south.
waves 1 foot or less. 
.saturday...south winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms saturday night. waves 2 feet
or less. 
.sunday...west winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms during the day. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 091330
glfle 
expires:202507092015;;144887

open lake forecast for lake erie
national weather service cleveland oh
930 am edt wed jul 9 2025

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a weak cold front will cross lake erie on thursday. this front
will then stall over the ohio valley friday and generally remain
just south of lake erie through much of the weekend. low pressure
29.70 inches will move northeast through the upper great lakes on
saturday into sunday, extending a cold front east through the area
on sunday.


lez164>167-092015-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
930 am edt wed jul 9 2025

.rest of today...south winds 10 knots or less becoming north. a
chance of showers late this morning, then a slight chance of
showers and thunderstorms early this afternoon. a chance of
showers and thunderstorms late. waves 1 foot or less. 
.tonight...east winds 10 knots or less becoming southwest. a
chance of showers and thunderstorms in the evening, then a slight
chance of showers and thunderstorms after midnight. waves 1 foot
or less. 
.thursday...west winds 10 knots or less becoming north. waves
1 foot or less. 
.thursday night...northeast winds less than 10 knots becoming
east. waves 1 foot or less. 
.friday...southeast winds 10 knots or less becoming south. waves
1 foot or less. 
.saturday...south winds 5 to 15 knots becoming southwest. a
chance of showers and thunderstorms. waves 2 feet or less. 
.sunday...west winds 5 to 15 knots. a chance of showers during
the day. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 091400
glfsc 
expires:202507092200;;145718

lake st clair forecast
national weather service detroit/pontiac mi
1000 am edt wed jul 9 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...turning warmer and more humid today with the arrival
of a low pressure system. expect periods of scattered showers and
thunderstorms until a weak cold front moves through this evening.
additional storms are possible friday night into saturday with
gradually warming temperatures.


lcz460-092200-
lake st clair-
1000 am edt wed jul 9 2025

.rest of today...south winds 5 to 10 knots. mostly cloudy. scattered
light showers and a chance of thunderstorms late in the
morning...then thunderstorms likely and scattered showers in the
afternoon. waves 2 feet or less.
.tonight...southwest winds 5 to 10 knots veering to the northwest
early in the morning. partly cloudy. numerous thunderstorms and a
chance of light showers in the evening. waves 2 feet or less.
.thursday...north winds 5 to 10 knots veering to the northeast early
in the afternoon. partly sunny. waves 2 feet or less.
.thursday night...northeast winds 5 to 10 knots. partly cloudy.
waves 2 feet or less.
.friday...east winds 5 to 10 knots veering to the southeast in the
afternoon and evening. partly sunny becoming mostly clear. waves 2
feet or less.
.saturday...southwest winds 10 to 15 knots. mostly clear. showers
likely and a chance of thunderstorms. waves 2 feet or less.
.sunday...northwest winds 10 to 15 knots. mostly clear. a chance of
showers and thunderstorms. waves 2 feet or less.

$$

fzus63 kdtx 091359
glflh 
expires:202507092200;;145674

open lake forecast for lake huron
national weather service detroit/pontiac mi
959 am edt wed jul 9 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...turning warmer and more humid today with the arrival
of a low pressure system. expect periods of scattered showers and
thunderstorms until a weak cold front moves through this evening.
additional storms are possible friday night into saturday with
gradually warming temperatures.


lhz362-363-092200-
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-
959 am edt wed jul 9 2025

.rest of today...east winds 5 to 10 knots. scattered showers in
the afternoon. waves 2 feet or less. 
.tonight...north winds 5 to 10 knots. scattered showers in the
evening. waves 2 feet or less. 
.thursday...north 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 increasing to 10 to 15 knots
late in the evening. a chance of showers late in the evening.
waves 2 feet or less. 
.saturday...south winds 10 to 15 knots becoming southwest 5 to
10 knots in the late evening and early morning. a chance of
showers early in the morning...then showers likely and a chance
of thunderstorms until early evening. a chance of showers in the
late evening and early morning. waves 1 to 3 feet. 
.sunday...west winds 5 to 10 knots backing to the southeast until
early morning. waves 1 to 3 feet. 


$$

fzus63 kdtx 091359
glflh 
expires:202507092200;;145675

open lake forecast for lake huron
national weather service detroit/pontiac mi
959 am edt wed jul 9 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...turning warmer and more humid today with the arrival
of a low pressure system. expect periods of scattered showers and
thunderstorms until a weak cold front moves through this evening.
additional storms are possible friday night into saturday with
gradually warming temperatures.


lhz462>464-092200-
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-
959 am edt wed jul 9 2025

.rest of today...southeast winds 5 to 10 knots. scattered showers
and a chance of thunderstorms. waves 2 feet or less. 
.tonight...northeast winds 5 to 10 knots. scattered thunderstorms
in the evening. waves 2 feet or less. 
.thursday...north 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. waves 2 feet or less. 
.saturday...south winds 5 to 10 knots increasing to 10 to
15 knots until early evening...then becoming southwest 5 to
10 knots in the late evening and early morning. a chance of
thunderstorms. a chance of showers until early morning. waves
1 to 3 feet. 
.sunday...west winds 5 to 10 knots backing to the east in the
late evening and early morning. waves 2 feet or less. 


$$

fzus63 kdtx 091359
glflh 
expires:202507092200;;145673

open lake forecast for lake huron
national weather service detroit/pontiac mi
959 am edt wed jul 9 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...turning warmer and more humid today with the arrival
of a low pressure system. expect periods of scattered showers and
thunderstorms until a weak cold front moves through this evening.
additional storms are possible friday night into saturday with
gradually warming temperatures.


lhz361-092200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
959 am edt wed jul 9 2025

.rest of today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds becoming northwest 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots backing to the
southwest early in the afternoon. waves 2 feet or less. 
.thursday night...light and variable winds. waves 2 feet or less.
.friday...light and variable winds becoming east 5 to 10 knots. a
chance of showers late in the evening. waves 2 feet or less. 
.saturday...south winds 5 to 10 knots veering to the southwest in
the late evening and early morning. a chance of showers early in
the morning...then showers likely and a chance of thunderstorms
until early evening. a chance of showers in the late evening and
early morning. waves 1 to 3 feet. 
.sunday...west winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 091406
glflm 
expires:202507092130;;146209

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
906 am cdt wed jul 9 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... 

a cold front will continue to slowly move south over the lake 
today, resulting in a northerly wind shift across all of lake 
michigan by the early afternoon hours. once ongoing showers over 
the southern open waters push east, the remainder of the frontal 
passage is expected to be dry. light northerly winds will prevail 
through thursday afternoon as 30.1 inch high pressure moves from 
the upper mississippi river valley toward lake michigan.

a broad area of 29.8 inch low pressure is forecast to move into 
the northern great plains thursday night into friday, resulting in
a south to southeast wind shift across lake michigan. the area of
low pressure will move into the upper mississippi valley by 
friday evening, ultimately crossing the open waters during the day
on saturday with an associated cold front. periods of showers and
thunderstorms will accompany the approaching surface low & cold 
front from friday afternoon through at least saturday morning. 
winds will shift out of the west by saturday evening as the 
surface low and cold front move east into lower michigan.


lmz080-669-671-673-675-777-779-870-872-874-876-878-092130-
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-
906 am cdt wed jul 9 2025

sheboygan wi to pentwater mi south...

.rest of today...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 3 to 5 ft. 
.tonight...north winds 10 to 20 kt diminishing to 5 to 10 kt.
waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday...north winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 3 ft. 
.thursday night...northeast winds 5 to 10 kt veering to
southeast. waves 1 to 2 ft. 
.friday...southeast winds 10 to 15 kt becoming south. waves 1 to
2 ft. 
.friday night...south winds 10 to 15 kt increasing to 10 to
20 kt. chance of showers and thunderstorms. waves 1 to 3 ft.
.saturday...southwest winds 10 to 20 kt. chance of showers and
thunderstorms. waves 2 to 4 ft. 
.sunday...west winds 10 to 15 kt becoming southwest. waves 1 to
2 ft.  

$$

fzus63 kmkx 091406
glflm 
expires:202507092130;;146208

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
906 am cdt wed jul 9 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... 

a cold front will continue to slowly move south over the lake 
today, resulting in a northerly wind shift across all of lake 
michigan by the early afternoon hours. once ongoing showers over 
the southern open waters push east, the remainder of the frontal 
passage is expected to be dry. light northerly winds will prevail 
through thursday afternoon as 30.1 inch high pressure moves from 
the upper mississippi river valley toward lake michigan.

a broad area of 29.8 inch low pressure is forecast to move into 
the northern great plains thursday night into friday, resulting in
a south to southeast wind shift across lake michigan. the area of
low pressure will move into the upper mississippi valley by 
friday evening, ultimately crossing the open waters during the day
on saturday with an associated cold front. periods of showers and
thunderstorms will accompany the approaching surface low & cold 
front from friday afternoon through at least saturday morning. 
winds will shift out of the west by saturday evening as the 
surface low and cold front move east into lower michigan.


lmz261-362-364-366-563-565-567-868-092130-
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-
906 am cdt wed jul 9 2025

sheboygan wi to pentwater mi north...

.rest of today...north winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft. 
.tonight...north winds 10 to 20 kt diminishing to 5 to 10 kt.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.thursday...north winds 5 to 10 kt becoming northwest 10 to
15 kt. waves 1 to 2 ft. 
.thursday night...southeast winds 5 to 10 kt becoming south.
waves 1 ft or less. 
.friday...south winds 10 to 15 kt. waves 1 to 2 ft. 
.friday night...south winds 10 to 15 kt. showers likely. waves
1 to 3 ft. 
.saturday...south winds 10 to 20 kt becoming southwest. chance of
showers and thunderstorms. waves 2 to 4 ft. 
.sunday...southwest winds 10 to 20 kt. waves 1 to 2 ft.  

$$

fzus63 kmqt 091402
glfls 
expires:202507092000;;145948

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed jul 9 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 weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through thursday. ridging is eventually pushed east by a 29.8 inch 
trough moving from the northern plains into canada friday night into 
saturday. within this trough, two 29.8 inch lows will combine by 
saturday afternoon over northern ontario. weak ridging of at least 
29.9 inches then returns to lake superior sunday morning and holds 
over head until at least monday evening.



lsz162-092000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt wed jul 9 2025 /901 am cdt wed jul 9 2025/

.rest of today...southeast winds 5 to 15 knots backing northeast
in the afternoon. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots diminishing to less than
10 knots after midnight, then increasing to 5 to 15 knots late.
waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots backing northeast late.
waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots. a chance of
showers and a slight chance of thunderstorms after midnight.
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 through early afternoon. a
chance of thunderstorms. showers likely by mid afternoon. waves
calm to 2 feet. 
.friday night...northeast winds 10 to 20 knots backing north
after midnight. showers likely through midnight. a chance of
thunderstorms. a chance of showers after midnight. waves calm to
2 feet. 
.saturday...west winds 10 to 20 knots. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 091402
glfls 
expires:202507092000;;145949

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed jul 9 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 weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through thursday. ridging is eventually pushed east by a 29.8 inch 
trough moving from the northern plains into canada friday night into 
saturday. within this trough, two 29.8 inch lows will combine by 
saturday afternoon over northern ontario. weak ridging of at least 
29.9 inches then returns to lake superior sunday morning and holds 
over head until at least monday evening.



lsz263-092000-
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 am edt wed jul 9 2025

.rest of today...north winds less than 10 knots backing west
late. waves calm to 2 feet. 
.tonight...west winds less than 10 knots backing southwest after
midnight. waves calm to 2 feet. 
.thursday...east winds less than 10 knots increasing to 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots veering south after
midnight. a slight chance of showers and thunderstorms after
midnight. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots backing east by mid
afternoon. a chance of showers. a slight chance of thunderstorms
by mid afternoon. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots backing northeast after
midnight. showers likely and a chance of thunderstorms. waves
calm to 2 feet. 
.saturday...west winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 091402
glfls 
expires:202507092000;;145950

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed jul 9 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 weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through thursday. ridging is eventually pushed east by a 29.8 inch 
trough moving from the northern plains into canada friday night into 
saturday. within this trough, two 29.8 inch lows will combine by 
saturday afternoon over northern ontario. weak ridging of at least 
29.9 inches then returns to lake superior sunday morning and holds 
over head until at least monday evening.



lsz264-092000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt wed jul 9 2025

.rest of today...north winds 5 to 15 knots backing west late.
waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots diminishing to less than
10 knots after midnight, then backing southwest late. waves calm
to 2 feet. 
.thursday...south winds less than 10 knots becoming southeast
5 to 15 knots in the afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots backing southeast by mid
afternoon. a chance of showers and a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots veering south after
midnight. showers likely and a chance of thunderstorms. waves
calm to 2 feet. 
.saturday...west winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 091402
glfls 
expires:202507092000;;145951

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed jul 9 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 weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through thursday. ridging is eventually pushed east by a 29.8 inch 
trough moving from the northern plains into canada friday night into 
saturday. within this trough, two 29.8 inch lows will combine by 
saturday afternoon over northern ontario. weak ridging of at least 
29.9 inches then returns to lake superior sunday morning and holds 
over head until at least monday evening.



lsz265-092000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt wed jul 9 2025

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

$$

fzus63 kmqt 091402
glfls 
expires:202507092000;;145952

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed jul 9 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 weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through thursday. ridging is eventually pushed east by a 29.8 inch 
trough moving from the northern plains into canada friday night into 
saturday. within this trough, two 29.8 inch lows will combine by 
saturday afternoon over northern ontario. weak ridging of at least 
29.9 inches then returns to lake superior sunday morning and holds 
over head until at least monday evening.



lsz266-092000-
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 am edt wed jul 9 2025

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

$$

fzus63 kmqt 091402
glfls 
expires:202507092000;;145953

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed jul 9 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 weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through thursday. ridging is eventually pushed east by a 29.8 inch 
trough moving from the northern plains into canada friday night into 
saturday. within this trough, two 29.8 inch lows will combine by 
saturday afternoon over northern ontario. weak ridging of at least 
29.9 inches then returns to lake superior sunday morning and holds 
over head until at least monday evening.



lsz267-092000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt wed jul 9 2025

.rest of today...northwest winds 5 to 15 knots increasing to
10 to 20 knots in the afternoon. waves calm to 2 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots veering north late.
waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.friday...southeast winds 10 to 20 knots. waves calm to 2 feet. 
.friday night...southeast winds 10 to 20 knots. a chance of
showers through midnight, then showers likely after midnight.
waves calm to 2 feet. 
.saturday...south winds 10 to 20 knots veering west. showers
likely. a chance of showers. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots backing south. waves
calm to 2 feet. 

$$