fzus61 kbuf 091003
glflo 
expires:202506091515;;954586

open lake forecast for lake ontario
national weather service buffalo ny
603 am edt mon jun 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 broad 29.6 inch low will slowly make its way from the upper great 
lakes to james bay, then to central quebec today through tuesday, 
pushing its cold front across the lake this afternoon and evening. a 
30.1 inch high will then ridge northeast across the lower great 
lakes wednesday and wednesday night as it moves from the ohio valley 
to the mid atlantic, while the aforementioned now 29.3 inch low 
tracks east to labrador mid week pushing a cold front across the 
lake on thursday. a 30.3 inch canadian high will then build 
southeast across the lake thursday night and friday.


loz063>065-091515-
lake ontario open waters from hamlin beach to the saint lawrence
river-
603 am edt mon jun 9 2025

.today...southeast winds 15 to 20 knots becoming south 10 to
15 knots. showers likely early. showers with a chance of
thunderstorms this afternoon. some thunderstorms may produce
gusty winds this afternoon. waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 2 feet or less. 
.tonight...south winds 5 to 15 knots. showers with a chance of
thunderstorms. some thunderstorms may produce gusty winds. waves
1 to 3 feet. 
.tuesday...south winds 10 to 15 knots becoming west. showers with
a chance of thunderstorms in the morning. waves 2 feet or less. 
.tuesday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.wednesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet, then
subsiding to 2 to 4 feet. 
.thursday...west winds 5 to 15 knots becoming north. waves 1 to
3 feet. 
.friday...northeast winds 5 to 10 knots. a chance of showers
friday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 091003
glflo 
expires:202506091515;;954585

open lake forecast for lake ontario
national weather service buffalo ny
603 am edt mon jun 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 broad 29.6 inch low will slowly make its way from the upper great 
lakes to james bay, then to central quebec today through tuesday, 
pushing its cold front across the lake this afternoon and evening. a 
30.1 inch high will then ridge northeast across the lower great 
lakes wednesday and wednesday night as it moves from the ohio valley 
to the mid atlantic, while the aforementioned now 29.3 inch low 
tracks east to labrador mid week pushing a cold front across the 
lake on thursday. a 30.3 inch canadian high will then build 
southeast across the lake thursday night and friday.


loz062-091515-
lake ontario open waters from the niagara river to hamlin beach-
603 am edt mon jun 9 2025

.today...south winds 5 to 15 knots. showers with a chance of
thunderstorms this afternoon. waves 1 to 3 feet. 
.tonight...south winds 5 to 10 knots. showers with a chance of
thunderstorms through the early overnight, then a chance of
showers late. waves 1 foot or less. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.tuesday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 2 to 3 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. waves 2 to 3 feet building to 3 to
6 feet, then subsiding to 2 to 4 feet. 
.thursday...west winds 5 to 10 knots becoming north. waves 1 to
2 feet. 
.friday...northeast winds 5 to 15 knots becoming east. a chance
of showers friday night. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 090738
glfle 
expires:202506091415;;948572

open lake forecast for lake erie
national weather service cleveland oh
338 am edt mon jun 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 cold front moves east across the area today, followed by a 
secondary cold front tonight. high pressure of 30.10 inches builds
into the ohio valley tuesday night through wednesday night before
departing to the mid-atlantic coast on thursday. a cold front 
will gradually sag southward across the lake thursday, remaining
south of the lake on friday.


lez061-168-169-091415-
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-
338 am edt mon jun 9 2025

.today...south winds 5 to 15 knots becoming southwest. a slight
chance of showers early, then showers late this morning. showers
with thunderstorms likely this afternoon. waves 2 feet or less. 
.tonight...south winds 5 to 15 knots becoming southwest. a chance
of showers and thunderstorms early, then a slight chance of
showers and thunderstorms late in the evening. a slight chance of
showers after midnight. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday night...southwest winds 10 to 15 knots. waves 2 to
4 feet subsiding to 1 to 2 feet. 
.wednesday...southwest winds 5 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.thursday...west winds 5 to 10 knots becoming northeast. waves
2 feet or less. 
.friday...northeast winds 5 to 15 knots becoming east. a chance
of showers friday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 090738
glfle 
expires:202506091415;;948570

open lake forecast for lake erie
national weather service cleveland oh
338 am edt mon jun 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 cold front moves east across the area today, followed by a 
secondary cold front tonight. high pressure of 30.10 inches builds
into the ohio valley tuesday night through wednesday night before
departing to the mid-atlantic coast on thursday. a cold front 
will gradually sag southward across the lake thursday, remaining
south of the lake on friday.


lez162-163-091415-
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-
338 am edt mon jun 9 2025

.today...southwest winds 10 to 15 knots becoming south. a chance
of showers this morning, then a slight chance of showers early
this afternoon. waves 1 to 2 feet. 
.tonight...southwest winds 10 to 15 knots becoming west. a slight
chance of showers and thunderstorms in the evening. waves 1 to
2 feet. 
.tuesday...west winds 5 to 15 knots. waves 2 feet or less. 
.tuesday night...west winds 10 to 15 knots becoming southwest.
waves 1 to 2 feet. 
.wednesday...southwest winds 10 to 15 knots. waves 1 to 2 feet. 
.thursday...southwest winds 5 to 10 knots becoming northeast. a
chance of showers during the day. waves 2 feet or less. 
.friday...east winds 10 to 15 knots. a chance of showers. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 090738
glfle 
expires:202506091415;;948571

open lake forecast for lake erie
national weather service cleveland oh
338 am edt mon jun 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 cold front moves east across the area today, followed by a 
secondary cold front tonight. high pressure of 30.10 inches builds
into the ohio valley tuesday night through wednesday night before
departing to the mid-atlantic coast on thursday. a cold front 
will gradually sag southward across the lake thursday, remaining
south of the lake on friday.


lez164>167-091415-
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-
338 am edt mon jun 9 2025

.today...southwest winds 10 to 15 knots becoming south. showers
likely with a slight chance of thunderstorms this morning, then a
chance of showers and thunderstorms this afternoon. waves 1 to
2 feet. 
.tonight...south winds 10 to 15 knots becoming west. a slight
chance of showers and thunderstorms late in the evening. a slight
chance of showers after midnight. waves 1 to 3 feet. 
.tuesday...west winds 10 to 15 knots becoming southwest. waves
1 to 3 feet building to 2 to 4 feet. 
.tuesday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.wednesday...southwest winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.thursday...southwest winds 5 to 10 knots becoming northeast.
waves 2 feet or less. 
.friday...northeast winds 10 to 15 knots becoming east. a chance
of showers friday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 090750
glflh 
expires:202506092000;;948912

open lake forecast for lake huron
national weather service detroit/pontiac mi
349 am edt mon jun 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...dry conditions to start the day followed by a cold
frontal passage this afternoon and evening. this will bring the
chance for showers and thunderstorms. high pressure, 29.90
inches, then attempts to build into the great lakes tuesday and
wednesday


lhz362-363-092000-
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-
349 am edt mon jun 9 2025

.today...south winds 5 to 10 knots becoming southeast 10 to
15 knots late in the afternoon. scattered showers in the
afternoon. waves 1 to 3 feet. 
.tonight...southeast winds 5 to 10 knots becoming southwest 10 to
15 knots early in the morning. numerous showers in the evening...
then scattered showers after midnight. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and afternoon. a chance of showers
in the afternoon. waves 1 to 3 feet. 
.tuesday night...southwest winds 5 to 10 knots increasing to
10 to 15 knots after midnight. waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots. waves 2 to 4 feet. 
.thursday...northwest winds 5 to 10 knots veering to the north.
waves 2 feet or less. 
.friday...northeast winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and early afternoon...then
decreasing to 5 to 10 knots early in the evening increasing to
10 to 15 knots in the late evening and early morning. a chance of
showers until early morning. waves 1 to 3 feet. 


$$

fzus63 kdtx 090750
glflh 
expires:202506092000;;948913

open lake forecast for lake huron
national weather service detroit/pontiac mi
349 am edt mon jun 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...dry conditions to start the day followed by a cold
frontal passage this afternoon and evening. this will bring the
chance for showers and thunderstorms. high pressure, 29.90
inches, then attempts to build into the great lakes tuesday and
wednesday


lhz462>464-092000-
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-
349 am edt mon jun 9 2025

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


$$

fzus63 kdtx 090750
glflh 
expires:202506092000;;948911

open lake forecast for lake huron
national weather service detroit/pontiac mi
349 am edt mon jun 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...dry conditions to start the day followed by a cold
frontal passage this afternoon and evening. this will bring the
chance for showers and thunderstorms. high pressure, 29.90
inches, then attempts to build into the great lakes tuesday and
wednesday


lhz361-092000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
349 am edt mon jun 9 2025

.today...light and variable winds becoming south 5 to 10 knots
late in the morning...then backing to the east in the afternoon.
scattered showers in the afternoon. waves 2 feet or less. 
.tonight...east winds 5 to 10 knots backing to the north late in
the evening...then veering to the southeast after midnight
veering to the southwest early in the morning. scattered showers.
waves 2 feet or less. 
.tuesday...west winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. waves 2 feet or less. 
.tuesday night...west winds 5 to 10 knots backing to the
southwest after midnight. waves 2 feet or less. 
.wednesday...southwest winds 10 to 15 knots veering to the west
late in the afternoon...then becoming northwest 5 to 10 knots
late in the evening. waves 1 to 3 feet building to 2 to 4 feet
late in the morning...then subsiding to 1 to 3 feet late in the
evening. 
.thursday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.friday...northeast winds 5 to 10 knots veering to the east until
early morning. a chance of showers in the late evening and early
morning. waves 2 feet or less. 


$$

fzus63 kdtx 090750 rra
glfsc 
expires:202506092000;;948915

lake st clair forecast
national weather service detroit/pontiac mi
349 am edt mon jun 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...dry conditions to start the day followed by a cold
frontal passage this afternoon and evening. this will bring the
chance for showers and thunderstorms. high pressure, 29.90
inches, then attempts to build into the great lakes tuesday and
wednesday


lcz460-092000-
lake st clair-
349 am edt mon jun 9 2025

.today...southwest winds 5 to 10 knots becoming south 10 to 15 knots
in the afternoon. partly sunny. a chance of light showers in the
morning...then scattered light showers in the afternoon. waves 2
feet or less.
.tonight...southwest winds 10 to 15 knots. mostly clear. scattered
light showers in the evening. waves 2 feet or less.
.tuesday...west winds 10 to 15 knots. mostly sunny. waves 2 feet or
less.
.tuesday night...west winds 10 to 15 knots becoming southwest 5 to
10 knots after midnight. mostly clear. waves 2 feet or less.
.wednesday...southwest winds 10 to 15 knots increasing to 15 to 20
knots in the afternoon and evening. sunny becoming mostly clear.
waves 1 to 3 feet.
.thursday...northeast winds 5 to 10 knots. partly cloudy. a chance
of showers. waves 2 feet or less.
.friday...east winds 10 to 15 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$

fzus63 kmkx 090754
glflm 
expires:202506091515;;948937

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
254 am cdt mon jun 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... 

low pressure around 29.5 inches in northern wisconsin/western lake 
superior will pivot east northeast across the great lakes region 
early this week. moderate southwest winds are expected today and 
will become westerly by tonight. scattered showers and thunderstorms 
are expected across the lake this afternoon and evening as the low 
moves east northeast. 

high pressure around 30.1 inches will move east from the rockies 
into the ohio river valley tuesday and wednesday bringing mostly 
quiet weather. light to moderate southwest to west wind are expected 
through wednesday. 


lmz261-362-364-366-563-565-567-868-091515-
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-
254 am cdt mon jun 9 2025

sheboygan wi to pentwater mi north...

.today...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
slight chance of showers this morning, then chance of showers and
slight chance of thunderstorms this afternoon. waves 1 to 3 ft. 
.tonight...southwest winds 10 to 15 kt becoming west. chance of
showers and slight chance of thunderstorms in the evening. waves
1 to 3 ft. 
.tuesday...west winds 10 to 15 kt becoming southwest 10 to 20 kt.
waves 1 to 3 ft. 
.tuesday night...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.wednesday...southwest winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday night...west winds 10 to 20 kt veering to northeast
5 to 10 kt. chance of showers. waves 1 to 3 ft. 
.thursday...northeast winds 10 to 15 kt becoming north. chance of
showers. waves 1 to 2 ft. 
.friday...east winds 10 to 20 kt. chance of showers. waves 1 to
3 ft.  

$$

fzus63 kmkx 090754
glflm 
expires:202506091515;;948938

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
254 am cdt mon jun 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... 

low pressure around 29.5 inches in northern wisconsin/western lake 
superior will pivot east northeast across the great lakes region 
early this week. moderate southwest winds are expected today and 
will become westerly by tonight. scattered showers and thunderstorms 
are expected across the lake this afternoon and evening as the low 
moves east northeast. 

high pressure around 30.1 inches will move east from the rockies 
into the ohio river valley tuesday and wednesday bringing mostly 
quiet weather. light to moderate southwest to west wind are expected 
through wednesday. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-091515-
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-
254 am cdt mon jun 9 2025

sheboygan wi to pentwater mi south...

.today...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers and slight chance of thunderstorms this
afternoon. waves 1 to 3 ft. 
.tonight...west winds 10 to 20 kt. chance of showers in the
evening. waves 1 to 3 ft. 
.tuesday...west winds 10 to 20 kt becoming southwest. waves 1 to
3 ft. 
.tuesday night...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.wednesday...southwest winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday night...southwest winds 10 to 15 kt. chance of
showers. waves 1 to 3 ft. 
.thursday...northwest winds 10 to 15 kt becoming north. chance of
showers. waves 1 to 2 ft. 
.friday...east winds 10 to 20 kt. chance of showers. waves 2 to
4 ft.  

$$

fzus63 kmqt 090802
glfls 
expires:202506092000;;949397

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon jun 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 29.5 inch trough over lake superior this morning weakens to 29.6 
inches later today. weak, broad troughing averaging 29.7 to 29.8 
inches remains over lake superior tuesday and wednesday before 30.2 
inch ridging builds in from the north on thursday. 30.2 inch ridging 
holds over lake superior on friday as a 30.3 inch high descends 
southeast over northern ontario into northern quebec.



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

.early this morning...east winds less than 10 knots. a chance of
rain showers. waves calm to 2 feet. 
.today...east winds less than 10 knots backing north in the
afternoon, then backing west late. a slight chance of rain
showers through early afternoon. waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots veering west late. a
slight chance of showers. waves building to 1 to 3 feet. 
.tuesday...west winds 10 to 20 knots backing southwest late. a
slight chance of showers by mid afternoon. waves building to 2 to
4 feet. 
.tuesday night...southwest winds 10 to 20 knots veering west
after midnight. a slight chance of thunderstorms through
midnight. a chance of showers. waves subsiding to 1 to 3 feet. 
.wednesday...west winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.wednesday night...north winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.thursday...north winds 5 to 15 knots veering east. waves calm to
2 feet. 
.friday...east winds 10 to 20 knots. a chance of showers. waves
calm to 2 feet. 

$$

fzus63 kmqt 090802
glfls 
expires:202506092000;;949398

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon jun 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 29.5 inch trough over lake superior this morning weakens to 29.6 
inches later today. weak, broad troughing averaging 29.7 to 29.8 
inches remains over lake superior tuesday and wednesday before 30.2 
inch ridging builds in from the north on thursday. 30.2 inch ridging 
holds over lake superior on friday as a 30.3 inch high descends 
southeast over northern ontario into northern quebec.



lsz265-092000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
402 am edt mon jun 9 2025

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

$$

fzus63 kmqt 090802
glfls 
expires:202506092000;;949395

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon jun 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 29.5 inch trough over lake superior this morning weakens to 29.6 
inches later today. weak, broad troughing averaging 29.7 to 29.8 
inches remains over lake superior tuesday and wednesday before 30.2 
inch ridging builds in from the north on thursday. 30.2 inch ridging 
holds over lake superior on friday as a 30.3 inch high descends 
southeast over northern ontario into northern quebec.



lsz162-092000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
402 am edt mon jun 9 2025 /302 am cdt mon jun 9 2025/

.early this morning...north winds 5 to 15 knots. a slight chance
of rain showers. waves calm to 2 feet. 
.today...north winds 5 to 15 knots backing southwest in the
afternoon. a chance of rain showers. a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots increasing to 10 to 20 knots
after midnight. a slight chance of showers and thunderstorms
through midnight. waves building to 1 to 3 feet. 
.tuesday...west winds 10 to 20 knots backing southwest in the
afternoon. haze and areas of smoke by mid afternoon. a slight
chance of showers by mid afternoon. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.tuesday night...southwest winds 10 to 20 knots veering west
after midnight. a chance of showers and a slight chance of
thunderstorms through midnight. waves subsiding to calm to
2 feet. 
.wednesday...west winds 10 to 20 knots. waves calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.thursday...east winds 10 to 20 knots backing northeast. a chance
of showers. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.friday...east winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 090802
glfls 
expires:202506092000;;949400

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon jun 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 29.5 inch trough over lake superior this morning weakens to 29.6 
inches later today. weak, broad troughing averaging 29.7 to 29.8 
inches remains over lake superior tuesday and wednesday before 30.2 
inch ridging builds in from the north on thursday. 30.2 inch ridging 
holds over lake superior on friday as a 30.3 inch high descends 
southeast over northern ontario into northern quebec.



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

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

$$

fzus63 kmqt 090802
glfls 
expires:202506092000;;949399

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon jun 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 29.5 inch trough over lake superior this morning weakens to 29.6 
inches later today. weak, broad troughing averaging 29.7 to 29.8 
inches remains over lake superior tuesday and wednesday before 30.2 
inch ridging builds in from the north on thursday. 30.2 inch ridging 
holds over lake superior on friday as a 30.3 inch high descends 
southeast over northern ontario into northern quebec.



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-
402 am edt mon jun 9 2025

.early this morning...south winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet. 
.today...south winds 5 to 15 knots backing north late. a chance
of rain showers. waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots backing west after
midnight. a slight chance of rain showers. a slight chance of
thunderstorms after midnight. waves calm to 2 feet. 
.tuesday...west winds 10 to 20 knots. a slight chance of showers
through early afternoon. waves building to 2 to 4 feet. 
.tuesday night...southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. a chance of showers. waves
subsiding to 1 to 3 feet. 
.wednesday...west winds 15 to 25 knots becoming northwest 10 to
20 knots by mid afternoon. waves building to 2 to 4 feet. 
.wednesday night...northwest winds 5 to 15 knots veering north
after midnight. waves subsiding to calm to 2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots.
a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 090802
glfls 
expires:202506092000;;949396

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon jun 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 29.5 inch trough over lake superior this morning weakens to 29.6 
inches later today. weak, broad troughing averaging 29.7 to 29.8 
inches remains over lake superior tuesday and wednesday before 30.2 
inch ridging builds in from the north on thursday. 30.2 inch ridging 
holds over lake superior on friday as a 30.3 inch high descends 
southeast over northern ontario into northern quebec.



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-
402 am edt mon jun 9 2025

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

$$