fzus61 kbuf 171401
glflo 
expires:202606172100;;899335

open lake forecast for lake ontario
national weather service buffalo ny
1001 am edt wed jun 17 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 29.9 inch high over the region will exit off to the 
east tonight. a 29.4 inch low will track north of the lake 
wednesday, with its front moving through late in the day. a 
deepening surface low will then track across the great lakes to 
southern quebec wednesday night and thursday, while pushing a cold 
front through the region. the low will then make its way to the 
canadian maritimes friday, while a 29.9 inch high builds across the 
great lakes for saturday. a trough averaging 29.9 inches will cross 
the lake late sunday.


loz062-172100-
lake ontario open waters from the niagara river to hamlin beach-
1001 am edt wed jun 17 2026

.rest of today...southeast winds 5 to 15 knots becoming south.
waves 2 feet or less. 
.tonight...south winds 10 to 15 knots becoming southeast and
increasing to 15 to 25 knots. showers likely late in the evening.
showers with a chance of thunderstorms after midnight. waves 1 to
3 feet building to 3 to 5 feet. 
.thursday...south winds 20 to 25 knots becoming west. showers
likely. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.thursday night...west winds 15 to 25 knots. a chance of showers
in the evening. waves 4 to 7 feet. waves occasionally around
9 feet. 
.friday...west winds 15 to 25 knots. waves 4 to 7 feet subsiding
to 3 to 6 feet. waves occasionally around 9 feet. 
.saturday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.sunday...west winds 5 to 10 knots becoming north. a chance of
showers sunday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 171401
glflo 
expires:202606172100;;899336

open lake forecast for lake ontario
national weather service buffalo ny
1001 am edt wed jun 17 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 29.9 inch high over the region will exit off to the 
east tonight. a 29.4 inch low will track north of the lake 
wednesday, with its front moving through late in the day. a 
deepening surface low will then track across the great lakes to 
southern quebec wednesday night and thursday, while pushing a cold 
front through the region. the low will then make its way to the 
canadian maritimes friday, while a 29.9 inch high builds across the 
great lakes for saturday. a trough averaging 29.9 inches will cross 
the lake late sunday.


loz063>065-172100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1001 am edt wed jun 17 2026

.rest of today...southeast winds 5 to 10 knots. showers likely
late this morning, then a chance of showers early this afternoon.
waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots increasing to 15 to
25 knots. a chance of showers late in the evening. showers with a
chance of thunderstorms after midnight. waves 2 feet or less
building to 3 to 5 feet. 
.thursday...south winds to 30 knots becoming southwest 15 to
25 knots. showers with a chance of thunderstorms in the morning,
then showers in the afternoon. waves 3 to 6 feet building to 4 to
7 feet. waves occasionally around 9 feet. 
.thursday night...west winds to 30 knots. a chance of showers in
the evening. waves 5 to 9 feet. waves occasionally around
11 feet. 
.friday...west winds to 30 knots. waves 5 to 9 feet. waves
occasionally around 11 feet. 
.saturday...west winds 15 to 25 knots diminishing to 10 to
15 knots. waves 5 to 8 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.sunday...west winds 5 to 15 knots becoming northwest less than
10 knots. a chance of showers sunday night. waves 1 to 3 feet
subsiding to 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 171739
glfle 
expires:202606180215;;908038

open lake forecast for lake erie
national weather service cleveland oh
139 pm edt wed jun 17 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
low pressure 29.10 inches deepens over the region late tonight 
into thursday. a warm front associated with this low will push 
north this evening followed by a strong cold front moving east 
tonight into thursday. a surface trough averaging 29.80 inches 
will linger into saturday before high pressure 30.00 inches 
returns on sunday.


lez061-169-180215-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
139 pm edt wed jun 17 2026

...gale warning in effect from late tonight through thursday
afternoon...

.tonight...southwest winds 5 to 15 knots becoming south and
increasing to 30 knots this evening. showers likely early.
showers with a slight chance of thunderstorms late this evening,
then showers with a chance of thunderstorms after midnight. waves
1 to 3 feet building to 4 to 7 feet. waves occasionally around
9 feet. 
.thursday...southwest gales to 35 knots becoming west. showers 
likely with a slight chance of thunderstorms early, then a chance 
of showers with a slight chance of thunderstorms from late morning
on. waves 5 to 9 feet building to 7 to 10 feet. waves 
occasionally around 13 feet. 
.thursday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. waves 6 to 9 feet subsiding to 3 to 5 feet. waves
occasionally around 11 feet. 
.friday...west winds 10 to 15 knots increasing to 15 to 20 knots.
waves 2 to 4 feet. 
.friday night...west winds 10 to 15 knots becoming northwest.
waves 2 to 4 feet. 
.saturday...west winds 10 to 15 knots diminishing to less than
10 knots. waves 1 to 3 feet. 
.sunday...west winds 10 knots or less becoming northeast 10 to
15 knots. showers likely sunday night. waves 2 feet or less. 
.monday...northeast winds 15 to 20 knots becoming north 5 to
15 knots. a chance of showers during the day. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 171739
glfle 
expires:202606180215;;908037

open lake forecast for lake erie
national weather service cleveland oh
139 pm edt wed jun 17 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
low pressure 29.10 inches deepens over the region late tonight 
into thursday. a warm front associated with this low will push 
north this evening followed by a strong cold front moving east 
tonight into thursday. a surface trough averaging 29.80 inches 
will linger into saturday before high pressure 30.00 inches 
returns on sunday.


lez165>168-180215-
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-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
139 pm edt wed jun 17 2026

...gale warning in effect from late tonight through thursday
afternoon...

.tonight...southwest winds 5 to 15 knots increasing to 30 knots.
a slight chance of showers this afternoon, then showers with a
chance of thunderstorms. waves 2 to 4 feet building to 5 to
9 feet. waves occasionally around 11 feet. 
.thursday...west gales to 35 knots. a chance of showers in the
morning, then a slight chance of showers in the afternoon. waves
6 to 9 feet. waves occasionally around 11 feet. 
.thursday night...west winds 15 to 25 knots. waves 5 to 8 feet
subsiding to 2 to 4 feet. waves occasionally around 10 feet. 
.friday...west winds 10 to 15 knots increasing to 15 to 20 knots.
waves 2 to 4 feet. 
.friday night...west winds 10 to 15 knots becoming northwest.
waves 2 to 4 feet. 
.saturday...west winds 5 to 15 knots becoming northwest. waves
1 to 3 feet. 
.sunday...northwest winds 10 knots or less becoming northeast and
increasing to 15 to 20 knots. showers likely with a chance of
thunderstorms sunday night. waves 2 feet or less building to 2 to
4 feet. 
.monday...northeast winds 15 to 20 knots becoming north 10 to
15 knots. a chance of showers during the day. waves 3 to 5 feet
subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 171739
glfle 
expires:202606180215;;908036

open lake forecast for lake erie
national weather service cleveland oh
139 pm edt wed jun 17 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
low pressure 29.10 inches deepens over the region late tonight 
into thursday. a warm front associated with this low will push 
north this evening followed by a strong cold front moving east 
tonight into thursday. a surface trough averaging 29.80 inches 
will linger into saturday before high pressure 30.00 inches 
returns on sunday.


lez162>164-180215-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
139 pm edt wed jun 17 2026

.tonight...southwest winds 10 to 15 knots increasing to 30 knots.
a chance of showers with a slight chance of thunderstorms early.
showers with a chance of thunderstorms through the early
overnight, then a chance of showers late. waves 1 to 3 feet
building to 3 to 6 feet. 
.thursday...west winds to 30 knots. a slight chance of showers in
the morning. waves 3 to 6 feet. 
.thursday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday...west winds 10 to 15 knots. waves 1 to 3 feet. 
.friday night...west winds 10 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.saturday...west winds 5 to 10 knots becoming northwest. waves
2 feet or less. 
.sunday...north winds 5 to 10 knots becoming east and increasing
to 15 to 20 knots. a chance of showers during the day, then
showers likely with a chance of thunderstorms sunday night. waves
2 feet or less building to 2 to 4 feet. 
.monday...northeast winds 15 to 20 knots becoming north 10 to
15 knots. a chance of showers during the day. waves 3 to 5 feet
subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 171356
glfsc 
expires:202606172200;;899158

lake st clair forecast
national weather service detroit/pontiac mi
956 am edt wed jun 17 2026

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

.synopsis...a brief break in convective activity is underway this
morning as ridging aloft quickly passes through. a strong low
pressure system follows in quick succession leading to evening
and overnight storms. additional chances exist for periods of
showers and thunderstorms through the rest of the workweek and
over the weekend.


lcz460-172200-
lake st clair-
956 am edt wed jun 17 2026

...small craft advisory in effect from 8 pm edt this evening
through thursday evening...

.rest of today...southwest winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. partly sunny. a chance of light showers
late in the afternoon. waves 2 feet or less.
.tonight...south winds 15 to 20 knots increasing to 20 to 25 knots
with gusts to 30 knots by midnight...then veering to the southwest
early in the morning. becoming partly cloudy early in the morning.
showers in the evening. a chance of thunderstorms. a chance of light
showers after midnight. locally heavy rainfall possible late in the
evening. waves 1 to 3 feet building to 3 to 5 feet in the late
evening and overnight. waves occasionally around 7 feet.
.thursday...west winds 15 to 20 knots. partly sunny. a chance of
light showers early in the morning. waves 2 to 4 feet subsiding to 1
to 3 feet in the late morning and afternoon.
.thursday night...west winds 15 to 20 knots diminishing to 10 to 15
knots in the late evening and overnight. mostly clear. waves 1 to 3
feet.
.friday...west winds 10 to 15 knots. sunny in the morning becoming
mostly clear. waves 2 feet or less.
.saturday...northwest winds 10 to 15 knots. mostly clear. waves 2
feet or less.
.sunday...east winds 10 to 15 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$

fzus63 kdtx 171355
glflh 
expires:202606172200;;899154

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 am edt wed jun 17 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...a brief break in convective activity is underway this
morning as ridging aloft quickly passes through. a strong low
pressure system follows in quick succession leading to evening
and overnight storms. additional chances exist for periods of
showers and thunderstorms through the rest of the workweek and
over the weekend.


lhz362-363-172200-
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-
955 am edt wed jun 17 2026

.rest of today...southeast winds 5 to 10 knots increasing to
10 to 15 knots late in the afternoon. waves 1 to 3 feet. 
.tonight...southeast winds 10 to 15 knots becoming east 15 to
20 knots after midnight...then becoming northeast 10 to 15 knots
early in the morning. showers. patchy fog after midnight. waves
2 to 4 feet building to 5 to 7 feet after midnight. waves
occasionally around 10 feet. 
.thursday...north winds 10 to 15 knots backing to the west in the
late morning and afternoon. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.thursday night...west winds 10 to 15 knots. waves 4 to 6 feet. 
.friday...west winds 10 to 15 knots. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...west winds 10 to 15 knots decreasing to 5 to
10 knots. waves 2 to 4 feet. 
.sunday...northwest winds 5 to 10 knots veering to the northeast
. a chance of showers by midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 171355
glflh 
expires:202606172200;;899155

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 am edt wed jun 17 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...a brief break in convective activity is underway this
morning as ridging aloft quickly passes through. a strong low
pressure system follows in quick succession leading to evening
and overnight storms. additional chances exist for periods of
showers and thunderstorms through the rest of the workweek and
over the weekend.


lhz462>464-172200-
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-
955 am edt wed jun 17 2026

.rest of today...south winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. waves 2 feet or less. 
.tonight...south winds 10 to 15 knots becoming southeast 20 to
25 knots with gusts to around 30 knots late in the evening...then
decreasing to 15 to 20 knots with gusts to around 30 knots after
midnight decreasing to 10 to 15 knots early in the morning.
showers and a chance of thunderstorms in the evening...then a
chance of showers and thunderstorms after midnight. patchy fog
after midnight. waves 1 to 3 feet building to 5 to 7 feet in the
late evening and overnight. waves occasionally around 10 feet. 
.thursday...southwest winds 10 to 15 knots veering to the west
early in the afternoon. waves 3 to 5 feet. 
.thursday night...west winds 10 to 15 knots. waves 2 to 4 feet. 
.friday...west winds 10 to 15 knots. waves 2 to 4 feet. 
.saturday...west winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then becoming light and
variable . waves 1 to 3 feet. 
.sunday...northwest winds 5 to 10 knots veering to the northeast
by midnight. a chance of showers by midnight. waves 2 feet or
less. 


$$

fzus63 kdtx 171355
glflh 
expires:202606172200;;899153

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 am edt wed jun 17 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...a brief break in convective activity is underway this
morning as ridging aloft quickly passes through. a strong low
pressure system follows in quick succession leading to evening
and overnight storms. additional chances exist for periods of
showers and thunderstorms through the rest of the workweek and
over the weekend.


lhz361-172200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
955 am edt wed jun 17 2026

.rest of today...light and variable winds becoming east 10 to
15 knots. waves 1 to 3 feet. 
.tonight...east winds 10 to 15 knots backing to the northeast
early in the morning. showers. patchy fog. waves 2 to 4 feet. 
.thursday...north winds 10 to 15 knots backing to the northwest
in the late morning and early afternoon...then becoming west
15 to 20 knots early in the afternoon. a chance of showers in the
morning. patchy fog in the morning. waves 3 to 5 feet. 
.thursday night...west winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.friday...west winds 15 to 20 knots becoming northwest 10 to
15 knots late in the evening. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.saturday...west winds 10 to 15 knots becoming northwest 5 to
10 knots by midnight. waves 2 to 4 feet subsiding to 1 to 3 feet
in the late morning and early afternoon...then building to 2 to
4 feet . 
.sunday...west winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 171351
glflm 
expires:202606172115;;899023

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 am cdt wed jun 17 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

southwesterly winds will back south and increase through this
morning as low pressure around 29.2 inches tracks eastward across
southern mn. winds will continue to back to southeasterly this 
afternoon, with a few gusts to gale force possible over southern 
portions of the lake. low pressure will cross the lake this 
evening, leaving gusty west winds over the southern half of the 
lake tonight and a northwest breeze for the north half. showers 
and thunderstorms are expected across the lake midday through 
this evening. a few strong to severe storms will be possible over 
southern portions of the lake this afternoon and evening.

winds will all shift to northwesterly thursday morning, becoming 
lighter and westerly by the afternoon as the low pressure system 
continues eastward. modest west winds are then expected friday
into the weekend as high pressure around 30.0 inches builds into 
the midwest.


lmz080-669-671-673-675-777-779-870-872-874-876-878-172115-
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-
851 am cdt wed jun 17 2026

sheboygan wi to pentwater mi south...

.rest of today...southwest winds 10 to 15 kt becoming south 10 to
20 kt late this morning, then becoming southeast to 30 kt this
afternoon. rain through mid morning, then showers, chance of
thunderstorms and rain this afternoon. waves 1 to 3 ft building
to 5 to 8 ft occasionally to 10 ft. 
.tonight...southeast winds to 30 kt veering to west. chance of
showers and thunderstorms in the evening, then chance of showers
overnight. waves 5 to 8 ft occasionally to 10 ft. 
.thursday...northwest winds to 30 kt becoming west 10 to 20 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.thursday night...west winds 10 to 20 kt. waves 2 to 4 ft. 
.friday...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.friday night...west winds 10 to 15 kt. waves 1 to 2 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 1 to
2 ft. 
.sunday...east winds 10 to 15 kt becoming northeast 15 to 25 kt.
chance of showers. waves 1 to 2 ft building to 2 to 4 ft.  

$$

fzus63 kmkx 171351
glflm 
expires:202606172115;;899022

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 am cdt wed jun 17 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

southwesterly winds will back south and increase through this
morning as low pressure around 29.2 inches tracks eastward across
southern mn. winds will continue to back to southeasterly this 
afternoon, with a few gusts to gale force possible over southern 
portions of the lake. low pressure will cross the lake this 
evening, leaving gusty west winds over the southern half of the 
lake tonight and a northwest breeze for the north half. showers 
and thunderstorms are expected across the lake midday through 
this evening. a few strong to severe storms will be possible over 
southern portions of the lake this afternoon and evening.

winds will all shift to northwesterly thursday morning, becoming 
lighter and westerly by the afternoon as the low pressure system 
continues eastward. modest west winds are then expected friday
into the weekend as high pressure around 30.0 inches builds into 
the midwest.


lmz261-362-364-366-563-565-567-868-172115-
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-
851 am cdt wed jun 17 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds less than 10 kt becoming south
10 to 15 kt late this morning, then increasing to 15 to 25 kt
early this afternoon becoming east to 30 kt late. showers and
slight chance of thunderstorms this afternoon. waves 1 to 3 ft
building to 4 to 6 ft occasionally to 8 ft. 
.tonight...east winds 15 to 25 kt backing to north. showers in
the evening, then chance of showers overnight. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.thursday...northwest winds 15 to 25 kt becoming west. chance of
showers in the morning. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.thursday night...west winds 10 to 20 kt. waves 1 to 3 ft. 
.friday...northwest winds 10 to 20 kt becoming west 15 to 25 kt.
waves 2 to 4 ft. 
.friday night...west winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 1 to
2 ft. 
.sunday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 1 to 3 ft.  

$$

fzus63 kmqt 171401
glfls 
expires:202606172000;;899330

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed jun 17 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

29.34 inch low pressure currently over the dakotas moves into 
southern wi by the early evening, sending troughing of at least 
29.5 inches over the lake. the low then pushes into southern quebec 
by thursday morning while deepening to 29.2 inches. this low slowly 
fills on friday while a 30.0 inch high builds over the upper 
mississippi valley, persisting into saturday.




lsz265-172000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt wed jun 17 2026

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

$$

fzus63 kmqt 171401
glfls 
expires:202606172000;;899331

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed jun 17 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

29.34 inch low pressure currently over the dakotas moves into 
southern wi by the early evening, sending troughing of at least 
29.5 inches over the lake. the low then pushes into southern quebec 
by thursday morning while deepening to 29.2 inches. this low slowly 
fills on friday while a 30.0 inch high builds over the upper 
mississippi valley, persisting into saturday.




lsz266-172000-
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-
1000 am edt wed jun 17 2026

.rest of today...southeast winds 5 to 15 knots backing east in
the afternoon, then increasing to 10 to 20 knots late. a slight
chance of rain showers by mid afternoon. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots becoming north 10 to 20 knots
after midnight. a chance of rain showers. waves building to 1 to
3 feet. 
.thursday...northwest winds 15 to 25 knots backing west late. a
slight chance of rain showers through early afternoon. waves
building to 3 to 5 feet occasionally to 7 feet. 
.thursday night...west winds 15 to 25 knots veering northwest
after midnight. waves subsiding to 2 to 4 feet, then building to
3 to 5 feet occasionally to 7 feet. 
.friday...northwest winds 15 to 25 knots backing west by mid
afternoon. waves subsiding to 2 to 4 feet. 
.friday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.saturday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 171401
glfls 
expires:202606172000;;899332

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed jun 17 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

29.34 inch low pressure currently over the dakotas moves into 
southern wi by the early evening, sending troughing of at least 
29.5 inches over the lake. the low then pushes into southern quebec 
by thursday morning while deepening to 29.2 inches. this low slowly 
fills on friday while a 30.0 inch high builds over the upper 
mississippi valley, persisting into saturday.




lsz267-172000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt wed jun 17 2026

.rest of today...southeast winds 5 to 15 knots backing east in
the afternoon, then increasing to 10 to 20 knots late. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots becoming northeast 10 to
20 knots after midnight, then backing north late. a chance of
rain showers. waves calm to 2 feet. 
.thursday...northwest winds 15 to 25 knots backing west in the
afternoon. a slight chance of rain showers through early
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.thursday night...west winds 15 to 25 knots. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.friday...west winds 15 to 25 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.friday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.saturday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 171401
glfls 
expires:202606172000;;899329

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed jun 17 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

29.34 inch low pressure currently over the dakotas moves into 
southern wi by the early evening, sending troughing of at least 
29.5 inches over the lake. the low then pushes into southern quebec 
by thursday morning while deepening to 29.2 inches. this low slowly 
fills on friday while a 30.0 inch high builds over the upper 
mississippi valley, persisting into saturday.




lsz264-172000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt wed jun 17 2026

.rest of today...southeast winds 5 to 15 knots backing east late.
a slight chance of rain showers by mid afternoon. waves calm to
2 feet. 
.tonight...northeast winds 5 to 15 knots backing northwest late.
a slight chance of rain showers. waves calm to 2 feet. 
.thursday...northwest 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. 
.thursday night...west winds 5 to 15 knots veering northwest
after midnight. waves 1 to 3 feet. 
.friday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.friday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots. waves calm to 2 feet. 
.sunday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 171401
glfls 
expires:202606172000;;899328

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed jun 17 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

29.34 inch low pressure currently over the dakotas moves into 
southern wi by the early evening, sending troughing of at least 
29.5 inches over the lake. the low then pushes into southern quebec 
by thursday morning while deepening to 29.2 inches. this low slowly 
fills on friday while a 30.0 inch high builds over the upper 
mississippi valley, persisting into saturday.




lsz263-172000-
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-
1000 am edt wed jun 17 2026

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

$$

fzus63 kmqt 171401
glfls 
expires:202606172000;;899327

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed jun 17 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

29.34 inch low pressure currently over the dakotas moves into 
southern wi by the early evening, sending troughing of at least 
29.5 inches over the lake. the low then pushes into southern quebec 
by thursday morning while deepening to 29.2 inches. this low slowly 
fills on friday while a 30.0 inch high builds over the upper 
mississippi valley, persisting into saturday.




lsz162-172000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt wed jun 17 2026 /900 am cdt wed jun 17 2026/

.rest of today...east winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon, then backing northeast late. a chance
of showers. waves calm to 2 feet building to 2 to 4 feet. 
.tonight...northeast winds 15 to 25 knots diminishing to 5 to
15 knots after midnight, then backing west late. a slight chance
of rain showers. waves subsiding to calm to 2 feet. 
.thursday...west winds 10 to 20 knots. a slight chance of showers
by mid afternoon. waves calm to 2 feet. 
.thursday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. a slight chance of rain showers by mid
afternoon. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots veering north. waves calm to
2 feet. 
.sunday...east winds 5 to 15 knots backing northeast. waves calm
to 2 feet. 

$$