fzus61 kbuf 172002
glflo 
expires:202606180300;;916027

open lake forecast for lake ontario
national weather service buffalo ny
402 pm 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 surface high just off the new england 
coastline this evening will continue to track farther out to sea 
tonight. a deepening surface low to 29.2 inches will then track 
north of the lake tonight, and then to southwestern quebec on 
thursday...all while dragging its associated cold front across the 
lake thursday morning. 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. on monday a broad area of high pressure 
averaging 30.2 inches will pass across the western great lakes, 
weakening and broadening further to 30.1 inches tuesday as it 
settles over the eastern great lakes.


loz063>065-180300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt wed jun 17 2026

.tonight...southeast winds 5 to 10 knots increasing to 30 knots
after midnight. a chance of showers late this evening. showers
with a chance of thunderstorms after midnight. waves 1 foot or
less building to 3 to 6 feet. 
.thursday...south winds to 30 knots becoming west. showers with a
chance of thunderstorms in the morning, then a chance of showers
in the afternoon. waves 5 to 9 feet. waves occasionally around
11 feet. 
.thursday night...west winds to 30 knots. waves 5 to 9 feet.
waves occasionally around 11 feet. 
.friday...west winds 20 to 25 knots. waves 6 to 9 feet. waves
occasionally around 11 feet. 
.friday night...west winds 20 to 25 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 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.sunday...west winds 5 to 15 knots becoming northwest. a chance
of showers sunday night. waves 2 feet or less. 
.monday...east winds 5 to 10 knots becoming northwest. a chance
of showers. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 172002
glflo 
expires:202606180300;;916026

open lake forecast for lake ontario
national weather service buffalo ny
402 pm 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 surface high just off the new england 
coastline this evening will continue to track farther out to sea 
tonight. a deepening surface low to 29.2 inches will then track 
north of the lake tonight, and then to southwestern quebec on 
thursday...all while dragging its associated cold front across the 
lake thursday morning. 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. on monday a broad area of high pressure 
averaging 30.2 inches will pass across the western great lakes, 
weakening and broadening further to 30.1 inches tuesday as it 
settles over the eastern great lakes.


loz062-180300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt wed jun 17 2026

.tonight...south winds 10 to 15 knots increasing to 15 to
25 knots. showers likely late this evening. showers with a chance
of thunderstorms after midnight. waves 2 feet or less building to
3 to 6 feet. 
.thursday...southwest winds to 30 knots becoming west. showers
with a chance of thunderstorms early, then a chance of showers.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.thursday night...west winds 15 to 25 knots. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.friday...west winds 15 to 25 knots. waves 3 to 6 feet. 
.friday night...west winds 15 to 20 knots. waves 3 to 6 feet. 
.saturday...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...west winds 5 to 10 knots becoming northeast. a chance
of showers sunday night. waves 1 foot or less. 
.monday...northeast winds 5 to 15 knots becoming north. a chance
of showers during the day. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 171944
glfle 
expires:202606180215;;915509

open lake forecast for lake erie
national weather service cleveland oh
344 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...
deepening low pressure of 29.20 inches moves through the lower
great lakes region tonight into thursday. the low will drag a
strong cold front east across lake erie tonight. a surface trough
averaging 29.60 inches lingers across the lake through saturday
with high pressure 30.00 inches building overhead 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-
344 pm edt wed jun 17 2026

...low water advisory in effect from 4 am to 4 pm edt thursday...

.tonight...southeast winds 15 to 25 knots becoming southwest to
30 knots. showers with a chance of thunderstorms this evening,
then a chance of showers and thunderstorms after midnight. a
slight chance of showers late. waves 2 to 4 feet building to 5 to
8 feet. waves occasionally around 10 feet. 
.thursday...west winds to 30 knots. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.thursday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. waves 3 to 6 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.

$$

fzus61 kcle 171944
glfle 
expires:202606180215;;915510

open lake forecast for lake erie
national weather service cleveland oh
344 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...
deepening low pressure of 29.20 inches moves through the lower
great lakes region tonight into thursday. the low will drag a
strong cold front east across lake erie tonight. a surface trough
averaging 29.60 inches lingers across the lake through saturday
with high pressure 30.00 inches building overhead 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-
344 pm edt wed jun 17 2026

...gale warning in effect from 2 am edt thursday through thursday
afternoon...

.tonight...southeast winds 15 to 20 knots becoming southwest and
increasing to 30 knots. showers with a slight chance of
thunderstorms early, then showers with a chance of thunderstorms.
a chance of showers with a slight chance of thunderstorms late.
waves 1 to 3 feet building to 7 to 11 feet. waves occasionally
around 14 feet. 
.thursday...west gales to 35 knots. a chance of showers early,
then a slight chance of showers from late morning on. waves 8 to
12 feet. waves occasionally around 15 feet. 
.thursday night...west winds 15 to 25 knots. waves 6 to 9 feet
subsiding to 3 to 6 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 3 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 171944
glfle 
expires:202606180215;;915511

open lake forecast for lake erie
national weather service cleveland oh
344 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...
deepening low pressure of 29.20 inches moves through the lower
great lakes region tonight into thursday. the low will drag a
strong cold front east across lake erie tonight. a surface trough
averaging 29.60 inches lingers across the lake through saturday
with high pressure 30.00 inches building overhead 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-
344 pm edt wed jun 17 2026

...gale warning in effect from 2 am edt thursday through thursday
afternoon...

.tonight...south winds 5 to 10 knots increasing to 30 knots after
midnight. showers with a slight chance of thunderstorms this
evening, then showers likely with a chance of thunderstorms after
midnight. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 11 feet. 
.thursday...southwest gales to 30 knots becoming west. showers 
likely with a slight chance of thunderstorms in the morning, then 
a chance of showers with a slight chance of thunderstorms in the 
afternoon. waves 8 to 12 feet building to 10 to 13 feet. waves 
occasionally around 16 feet. 
.thursday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of showers in the evening. waves 7 to 10 feet
subsiding to 2 to 4 feet. waves occasionally around 13 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.

$$

fzus63 kdtx 171948
glflh 
expires:202606180400;;915546

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 pm 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 very strong low pressure system, 29.20 inches, will
track across northern lower michigan tonight bringing widespread
rain and embedded thunderstorms. this will also bring the chance
for some isolated gust to gales most favorable across lake erie
and lake st. clair. overnight a cold front will move through,
veering winds to west-northwest and sustaining breezy conditions.


lhz362-363-180400-
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-
348 pm edt wed jun 17 2026

.tonight...southeast winds 10 to 15 knots becoming east 15 to
20 knots after midnight...then backing to the northeast 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 3 to 5 feet building
to 5 to 7 feet after midnight. waves occasionally around 10 feet.
.thursday...north winds 15 to 20 knots backing to the west in the
late morning and afternoon. waves 3 to 5 feet. 
.thursday night...west winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 4 to 6 feet. 
.friday...west winds 10 to 15 knots. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.friday night...west winds 10 to 15 knots. waves 4 to 6 feet. 
.saturday...west winds 10 to 15 knots becoming southwest 5 to
10 knots late in the morning...then backing to the southeast late
in the afternoon veering to the west late in the evening. waves
2 to 4 feet. waves occasionally around 8 feet. 
.sunday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.monday...north 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 . waves 1 to 3 feet. 


$$

fzus63 kdtx 171948
glflh 
expires:202606180400;;915545

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 pm 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 very strong low pressure system, 29.20 inches, will
track across northern lower michigan tonight bringing widespread
rain and embedded thunderstorms. this will also bring the chance
for some isolated gust to gales most favorable across lake erie
and lake st. clair. overnight a cold front will move through,
veering winds to west-northwest and sustaining breezy conditions.


lhz361-180400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
348 pm edt wed jun 17 2026

.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 becoming northwest 15 to
20 knots in the late morning and early afternoon...then backing
to the west late 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 decreasing to 10 to
15 knots by midnight...then increasing to 15 to 20 knots after
midnight. waves 3 to 5 feet. 
.friday...west winds 15 to 20 knots. waves 4 to 6 feet. 
.friday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots in the late evening and overnight. waves 3 to
5 feet. waves occasionally around 8 feet. 
.saturday...west winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon...then becoming northwest 5 to 10 knots
late in the evening. waves 2 to 4 feet subsiding to 1 to 3 feet
late in the morning...then building to 2 to 4 feet late in the
afternoon subsiding to 1 to 3 feet late in the evening. 
.sunday...west winds 5 to 10 knots. waves 2 feet or less. 
.monday...north winds 5 to 10 knots backing to the northwest .
waves 1 to 3 feet. 


$$

fzus63 kdtx 171948
glflh 
expires:202606180400;;915547

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 pm 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 very strong low pressure system, 29.20 inches, will
track across northern lower michigan tonight bringing widespread
rain and embedded thunderstorms. this will also bring the chance
for some isolated gust to gales most favorable across lake erie
and lake st. clair. overnight a cold front will move through,
veering winds to west-northwest and sustaining breezy conditions.


lhz462>464-180400-
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-
348 pm edt wed jun 17 2026

.tonight...south winds 10 to 15 knots becoming southeast 20 to
25 knots with gusts to around 30 knots by midnight an isolated
gust to gale will be possible...then becoming south 15 to 20 
knots early in the morning. showers likely and a chance of 
thunderstorms in the evening...then a chance of showers and 
thunderstorms after midnight. patchy fog after midnight. locally 
heavy rainfall possible in the evening. waves 2 to 4 feet building
to 5 to 7 feet in the late evening and overnight. waves 
occasionally around 10 feet. 
.thursday...west winds 15 to 20 knots. a chance of showers. 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. 
.friday night...northwest winds 5 to 10 knots. waves 2 to 4 feet.
.saturday...west winds 5 to 10 knots becoming light and variable.
waves 1 to 3 feet. 
.sunday...north winds 5 to 10 knots veering to the northeast . a
chance of showers by midnight. waves 2 feet or less. 
.monday...north winds 10 to 15 knots. a chance of showers early
in the morning. waves 2 to 4 feet. 


$$

fzus63 kmkx 171958
glflm 
expires:202606180315;;915785

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
258 pm 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...

southeasterly winds gusting consistently around 30 kt will build
waves in the southern half of lake michigan into this evening 
as low pressure around 29.2 inches approaches. winds will become
northeasterly in the northern half and westerly in the southern
half as low pressure crosses central portions of the open waters
late tonight. winds in the southern half will continue to gust
near 30 kt. for both periods, a few gales are expected. isolated
thunderstorms are also expected across the southern half this
evening.

as low pressure exits into michigan early thursday morning,
expect all winds to shift to become northwesterly and diminish
gradually into thursday. winds remain light and northwesterly
through the remainder of thursday and through friday as high
pressure around 30.0 inches progresses southeastward into the
lower mississippi valley. winds may briefly turn southwesterly
friday night as weak low pressure moves through the region, but
high pressure will rapidly regain dominance by saturday, 
keeping winds light and variable. stronger low pressure will 
approach from the central plains on sunday, bringing more 
widespread rain and thunderstorms and turning winds to 
northeasterly. northeast winds will continue into early next 
week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-180315-
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-
258 pm cdt wed jun 17 2026

sheboygan wi to pentwater mi south...

.tonight...south winds to 30 kt veering to west. chance of
showers and thunderstorms this evening, then slight chance of
showers overnight. waves 5 to 8 ft occasionally to 10 ft
subsiding to 4 to 7 ft occasionally to 9 ft. 
.thursday...northwest winds to 30 kt diminishing to 15 to 25 kt
late in the morning, then becoming west 10 to 20 kt early in the
afternoon diminishing to 10 to 15 kt late. slight chance of
showers in the morning. waves 5 to 8 ft occasionally to 10 ft
subsiding to 2 to 4 ft. 
.thursday night...west winds 10 to 20 kt becoming northwest.
waves 2 to 4 ft. 
.friday...northwest winds 10 to 20 kt becoming west. waves 2 to
4 ft. 
.friday night...southwest winds 10 to 15 kt becoming west. waves
1 to 2 ft. 
.saturday...west winds 10 to 15 kt becoming southwest. waves 1 to
2 ft. 
.saturday night...south winds 5 to 10 kt backing to northeast.
waves 1 ft or less. 
.sunday...northeast winds 10 to 15 kt increasing to 15 to 25 kt.
chance of showers. waves 1 to 2 ft building to 2 to 4 ft. 
.monday...north winds 15 to 25 kt increasing to 30 kt. waves 5 to
8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft.  

$$

fzus63 kmkx 171958
glflm 
expires:202606180315;;915784

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
258 pm 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...

southeasterly winds gusting consistently around 30 kt will build
waves in the southern half of lake michigan into this evening 
as low pressure around 29.2 inches approaches. winds will become
northeasterly in the northern half and westerly in the southern
half as low pressure crosses central portions of the open waters
late tonight. winds in the southern half will continue to gust
near 30 kt. for both periods, a few gales are expected. isolated
thunderstorms are also expected across the southern half this
evening.

as low pressure exits into michigan early thursday morning,
expect all winds to shift to become northwesterly and diminish
gradually into thursday. winds remain light and northwesterly
through the remainder of thursday and through friday as high
pressure around 30.0 inches progresses southeastward into the
lower mississippi valley. winds may briefly turn southwesterly
friday night as weak low pressure moves through the region, but
high pressure will rapidly regain dominance by saturday, 
keeping winds light and variable. stronger low pressure will 
approach from the central plains on sunday, bringing more 
widespread rain and thunderstorms and turning winds to 
northeasterly. northeast winds will continue into early next 
week.


lmz261-362-364-366-563-565-567-868-180315-
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-
258 pm cdt wed jun 17 2026

sheboygan wi to pentwater mi north...

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

$$

fzus63 kmqt 172008 cca
glfls 
expires:202606180800;;916669

open lake forecast for lake superior...corrected
national weather service marquette mi
408 pm 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... 

a 29.2 inch low pressure skirts south of the up into southern quebec
this evening into thursday morning. this low slowly fills on friday 
while a 30.0 inch high builds over the upper mississippi valley, 
persisting into saturday. moving into early next week, a high
pressure over northern canada drops 30.0 inch south over lake
superior on sunday, increasing to 30.2 inches by monday as the parent
high strengthens to 30.3 inches as it moves into western hudson bay.


lsz266-180800-
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-
408 pm edt wed jun 17 2026

.late this afternoon...east winds 10 to 20 knots. a slight chance
of showers. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots backing north after midnight,
then becoming northwest 10 to 20 knots late. 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 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. 
.friday...northwest winds 15 to 25 knots becoming west 10 to
20 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.friday night...west winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...west winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...north winds 5 to 15 knots. waves calm to 2 feet. 
.monday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 172008 cca
glfls 
expires:202606180800;;916670

open lake forecast for lake superior...corrected
national weather service marquette mi
408 pm 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... 

a 29.2 inch low pressure skirts south of the up into southern quebec
this evening into thursday morning. this low slowly fills on friday 
while a 30.0 inch high builds over the upper mississippi valley, 
persisting into saturday. moving into early next week, a high
pressure over northern canada drops 30.0 inch south over lake
superior on sunday, increasing to 30.2 inches by monday as the parent
high strengthens to 30.3 inches as it moves into western hudson bay.


lsz267-180800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
408 pm edt wed jun 17 2026

.late this afternoon...east winds 5 to 15 knots. 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 calm to 2 feet. 
.thursday...northwest winds 15 to 25 knots becoming west 20 to
30 knots in the afternoon. a slight chance of showers through
early afternoon. waves building to 3 to 6 feet occasionally to
8 feet. 
.thursday night...west winds 15 to 25 knots veering northwest
late. 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 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.saturday...west winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...northwest winds 5 to 15 knots becoming north 10 to
20 knots. waves calm to 2 feet. 
.monday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 172008 cca
glfls 
expires:202606180800;;916665

open lake forecast for lake superior...corrected
national weather service marquette mi
408 pm 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... 

a 29.2 inch low pressure skirts south of the up into southern quebec
this evening into thursday morning. this low slowly fills on friday 
while a 30.0 inch high builds over the upper mississippi valley, 
persisting into saturday. moving into early next week, a high
pressure over northern canada drops 30.0 inch south over lake
superior on sunday, increasing to 30.2 inches by monday as the parent
high strengthens to 30.3 inches as it moves into western hudson bay.


lsz162-180800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
408 pm edt wed jun 17 2026 /308 pm cdt wed jun 17 2026/

.late this afternoon...northeast winds 15 to 25 knots. a chance
of showers. waves 1 to 3 feet. 
.tonight...northeast winds 10 to 20 knots becoming north 5 to
15 knots after midnight, then backing west late. a slight chance
of showers through midnight. 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 late. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. a slight chance of showers by mid afternoon. waves
calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.saturday night...north winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...northeast winds 5 to 15 knots backing north. waves calm
to 2 feet. 
.monday...north winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 172008 cca
glfls 
expires:202606180800;;916666

open lake forecast for lake superior...corrected
national weather service marquette mi
408 pm 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... 

a 29.2 inch low pressure skirts south of the up into southern quebec
this evening into thursday morning. this low slowly fills on friday 
while a 30.0 inch high builds over the upper mississippi valley, 
persisting into saturday. moving into early next week, a high
pressure over northern canada drops 30.0 inch south over lake
superior on sunday, increasing to 30.2 inches by monday as the parent
high strengthens to 30.3 inches as it moves into western hudson bay.


lsz263-180800-
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-
408 pm edt wed jun 17 2026

.late this afternoon...northeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots backing north after
midnight, then backing west late. a slight 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. a slight chance of
thunderstorms 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...southwest winds 5 to 15 knots veering west after
midnight. waves subsiding to calm to 2 feet. 
.saturday...west winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...west winds 5 to 15 knots becoming north less
than 10 knots after midnight. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots backing north. waves calm
to 2 feet. 
.monday...north winds 5 to 15 knots becoming west less than
10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 172008 cca
glfls 
expires:202606180800;;916667

open lake forecast for lake superior...corrected
national weather service marquette mi
408 pm 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... 

a 29.2 inch low pressure skirts south of the up into southern quebec
this evening into thursday morning. this low slowly fills on friday 
while a 30.0 inch high builds over the upper mississippi valley, 
persisting into saturday. moving into early next week, a high
pressure over northern canada drops 30.0 inch south over lake
superior on sunday, increasing to 30.2 inches by monday as the parent
high strengthens to 30.3 inches as it moves into western hudson bay.


lsz264-180800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
408 pm edt wed jun 17 2026

.late this afternoon...east winds 5 to 15 knots. 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...west winds 10 to 20 knots. a slight chance of
showers. a slight chance of thunderstorms by mid afternoon. 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 backing southwest by mid
afternoon. 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. 
.saturday night...west winds 5 to 15 knots becoming northwest
less than 10 knots after midnight. waves calm to 2 feet. 
.sunday...north winds 5 to 15 knots. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 

$$

fzus63 kmqt 172008 cca
glfls 
expires:202606180800;;916668

open lake forecast for lake superior...corrected
national weather service marquette mi
408 pm 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... 

a 29.2 inch low pressure skirts south of the up into southern quebec
this evening into thursday morning. this low slowly fills on friday 
while a 30.0 inch high builds over the upper mississippi valley, 
persisting into saturday. moving into early next week, a high
pressure over northern canada drops 30.0 inch south over lake
superior on sunday, increasing to 30.2 inches by monday as the parent
high strengthens to 30.3 inches as it moves into western hudson bay.


lsz265-180800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
408 pm edt wed jun 17 2026

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

$$