fzus61 kbuf 150802
glflo 
expires:202607151500;;997256

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt wed jul 15 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 cold front will cross the lake late tonight into 
wednesday morning, followed by a secondary cold front pushing south 
across the lake thursday night into friday. a weak 29.8 inch low 
over the upper great lakes friday, will move southeast into the 
lower great lakes on saturday, before deepening to 29.6 inches as it 
passes across new england sunday. meanwhile, a weak 29.9 inch high 
will slide across the great lakes sunday.


loz062-151500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt wed jul 15 2026

.today...west winds 5 to 15 knots. areas of smoke. waves 1 to
3 feet. 
.tonight...west winds 5 to 15 knots. areas of smoke. waves 2 feet
or less. 
.thursday...west winds 5 to 15 knots. areas of smoke. waves 1 to
3 feet. 
.thursday night...west winds 15 to 20 knots becoming northeast
5 to 15 knots. areas of smoke in the evening. waves 1 to 3 feet. 
.friday...east winds 5 to 10 knots becoming southeast. a chance
of showers and thunderstorms friday night. waves 1 foot or less. 
.saturday...south winds 5 to 15 knots becoming north. showers
likely with a chance of thunderstorms. waves 2 feet or less. 
.sunday...north winds 5 to 15 knots becoming southwest. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 150802
glflo 
expires:202607151500;;997257

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt wed jul 15 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 cold front will cross the lake late tonight into 
wednesday morning, followed by a secondary cold front pushing south 
across the lake thursday night into friday. a weak 29.8 inch low 
over the upper great lakes friday, will move southeast into the 
lower great lakes on saturday, before deepening to 29.6 inches as it 
passes across new england sunday. meanwhile, a weak 29.9 inch high 
will slide across the great lakes sunday.


loz063>065-151500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt wed jul 15 2026

.today...northwest winds 5 to 15 knots becoming west 15 to
20 knots. areas of smoke. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.tonight...west winds 15 to 20 knots becoming northwest 5 to
15 knots. patchy smoke. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.thursday...west winds 5 to 15 knots increasing to 15 to
20 knots. patchy smoke. waves 1 to 3 feet building to 2 to
4 feet. 
.thursday night...west winds 15 to 20 knots becoming north 5 to
15 knots. patchy smoke in the evening. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.friday...northeast winds 5 to 10 knots becoming southeast. a
chance of showers and thunderstorms friday night. waves 2 feet or
less. 
.saturday...southeast winds 5 to 15 knots becoming north. showers
likely with a chance of thunderstorms. waves 2 feet or less. 
.sunday...north winds 5 to 15 knots becoming southwest. a chance
of showers during the day. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 150740
glfle 
expires:202607151415;;996540

open lake forecast for lake erie
national weather service cleveland oh
340 am edt wed jul 15 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...
high pressure 30.10 inches continues to build across the region 
and into the ohio valley through wednesday. a weak cold front will
move south across lake erie late wednesday into thursday. on 
saturday, a warm front will lift north across the lake followed by
a cold front saturday night. 


lez162-163-151415-
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-
340 am edt wed jul 15 2026

.today...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.tonight...west winds 5 to 10 knots becoming northeast. a slight
chance of showers in the evening. areas of smoke through the
early overnight, then smoke late. waves 2 feet or less. 
.thursday...northeast winds 10 knots or less becoming southeast.
smoke in the morning, then areas of smoke in the afternoon. waves
2 feet or less. 
.thursday night...southeast winds 5 to 10 knots. areas of smoke
in the evening. waves 1 foot or less. 
.friday...southeast winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms during the day, then showers
likely with a chance of thunderstorms friday night. waves 1 foot
or less. 
.saturday...west winds 10 to 15 knots becoming north. showers
likely with a chance of thunderstorms during the day, then a
chance of showers and thunderstorms saturday night. waves 1 to
2 feet. 
.sunday...north winds 5 to 15 knots becoming southwest. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 150740
glfle 
expires:202607151415;;996541

open lake forecast for lake erie
national weather service cleveland oh
340 am edt wed jul 15 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...
high pressure 30.10 inches continues to build across the region 
and into the ohio valley through wednesday. a weak cold front will
move south across lake erie late wednesday into thursday. on 
saturday, a warm front will lift north across the lake followed by
a cold front saturday night. 


lez164>166-151415-
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-
340 am edt wed jul 15 2026

.today...west winds 5 to 10 knots. waves 1 to 3 feet. 
.tonight...west winds 10 knots or less becoming northeast. patchy
smoke early, then areas of smoke. smoke late. a slight chance of
showers late in the evening. waves 2 feet or less. 
.thursday...northeast winds 10 knots or less becoming west. smoke
in the morning, then areas of smoke in the afternoon. waves
2 feet or less. 
.thursday night...northwest winds 10 knots or less becoming
southeast. areas of smoke in the evening. waves 1 foot or less. 
.friday...southeast winds 10 knots or less becoming south 10 to
15 knots. a chance of showers during the day, then showers likely
with a chance of thunderstorms friday night. waves 2 feet or
less. 
.saturday...southwest winds 10 to 15 knots becoming north 15 to
20 knots. showers likely with a chance of thunderstorms. waves
1 to 3 feet building to 2 to 4 feet. 
.sunday...north winds 5 to 15 knots becoming south. waves 1 to
3 feet subsiding to 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 150740
glfle 
expires:202607151415;;996542

open lake forecast for lake erie
national weather service cleveland oh
340 am edt wed jul 15 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...
high pressure 30.10 inches continues to build across the region 
and into the ohio valley through wednesday. a weak cold front will
move south across lake erie late wednesday into thursday. on 
saturday, a warm front will lift north across the lake followed by
a cold front saturday night. 


lez061-167>169-151415-
ripley to buffalo ny extending from 5nm 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-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
340 am edt wed jul 15 2026

.today...west winds 10 to 15 knots. patchy smoke this afternoon.
waves 1 to 3 feet. 
.tonight...west winds 5 to 10 knots becoming north. areas of
smoke through the early overnight, then smoke late. waves 2 feet
or less. 
.thursday...northwest winds 5 to 10 knots becoming west. smoke in
the morning, then areas of smoke in the afternoon. waves 1 foot
or less. 
.thursday night...west winds 10 knots or less becoming northeast.
areas of smoke in the evening. waves 1 foot or less. 
.friday...east winds 10 knots or less becoming south 10 to
15 knots. showers likely with a chance of thunderstorms friday
night. waves 2 feet or less. 
.saturday...southwest winds 10 to 15 knots becoming northwest.
showers likely with a chance of thunderstorms. waves 1 to 3 feet
building to 2 to 4 feet. 
.sunday...north winds 5 to 15 knots becoming south. waves 1 to
3 feet subsiding to 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 150716
glflh 
expires:202607151530;;996024

open lake forecast for lake huron
national weather service detroit/pontiac mi
316 am edt wed jul 15 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 mainly dry cold front will drop south through the
central great lakes tonight and wednesday. weak high pressure
follows for thursday before the next low pressure system moves in
for the late week and early weekend time frame.


lhz361-151530-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
316 am edt wed jul 15 2026

.today...northwest winds 5 to 10 knots becoming west 10 to
15 knots late in the afternoon. smoke. waves 2 feet or less. 
.tonight...northwest winds 10 to 15 knots. smoke in the evening...
then areas of smoke after midnight. waves 2 to 4 feet subsiding
to 1 to 3 feet early in the morning. 
.thursday...west winds 10 to 15 knots. smoke in the morning.
waves 1 to 3 feet. 
.thursday night...northwest winds 10 to 15 knots becoming north
5 to 10 knots in the late evening and overnight. waves 2 to
4 feet subsiding to 1 to 3 feet in the late evening and
overnight. 
.friday...east winds 5 to 10 knots increasing to 10 to 15 knots
late in the morning...then becoming southeast 5 to 10 knots late
in the afternoon. a chance of showers...then showers likely late
in the afternoon. waves 1 to 3 feet. 
.saturday...southeast winds 10 to 15 knots backing to the north .
showers likely early in the morning. a chance of showers in the
late morning and early afternoon. waves 1 to 3 feet. 
.sunday...north winds 5 to 10 knots backing to the south . waves
2 feet or less. 


$$

fzus63 kdtx 150716
glfsc 
expires:202607151530;;996028

lake st clair forecast
national weather service detroit/pontiac mi
316 am edt wed jul 15 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 mainly dry cold front will drop south through the
central great lakes tonight and wednesday. weak high pressure
follows for thursday before the next low pressure system moves in
for the late week and early weekend time frame.


lcz460-151530-
lake st clair-
316 am edt wed jul 15 2026

.today...west winds 5 to 10 knots veering to the northeast in the
afternoon. partly sunny. smoke late in the afternoon. waves 2 feet
or less.
.tonight...northeast winds 5 to 10 knots increasing to 10 to 15
knots late in the evening...then diminishing to 5 to 10 knots after
midnight. partly cloudy. smoke. waves 2 feet or less.
.thursday...north winds 5 to 10 knots. mostly sunny. smoke early in
the morning. waves 2 feet or less.
.thursday night...northeast winds 5 to 10 knots veering to the east
after midnight. mostly clear. waves 2 feet or less.
.friday...southeast winds 5 to 10 knots. partly sunny in the
morning...then a chance of light showers in the afternoon. partly
cloudy with a chance of showers and thunderstorms in the evening.
waves 2 feet or less.
.saturday...north winds 10 to 15 knots. partly cloudy. showers
likely and a chance of thunderstorms. waves 2 feet or less.
.sunday...southeast winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 150716
glflh 
expires:202607151530;;996026

open lake forecast for lake huron
national weather service detroit/pontiac mi
316 am edt wed jul 15 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 mainly dry cold front will drop south through the
central great lakes tonight and wednesday. weak high pressure
follows for thursday before the next low pressure system moves in
for the late week and early weekend time frame.


lhz462>464-151530-
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-
316 am edt wed jul 15 2026

.today...west winds 5 to 10 knots early in the morning becoming
light and variable...then becoming north 5 to 10 knots late in
the afternoon. patchy smoke in the morning...then smoke in the
afternoon. waves 2 feet or less. 
.tonight...north winds 5 to 10 knots backing to the northwest
early in the morning. smoke. waves 1 to 3 feet. 
.thursday...northwest winds 5 to 10 knots. smoke in the morning.
waves 1 to 3 feet. 
.thursday night...light and variable winds. waves 2 feet or less.
.friday...light and variable winds becoming southeast 5 to
10 knots late in the morning...then backing to the east late in
the afternoon. a chance of thunderstorms late in the afternoon.
rain showers likely and a chance of thunderstorms late in the
evening. waves 2 feet or less. 
.saturday...south winds 5 to 10 knots veering to the southwest in
the late morning and early afternoon...then becoming north 10 to
15 knots . showers likely. a chance of thunderstorms until early
evening...then a chance of showers by midnight. waves 1 to
3 feet. 
.sunday...north winds 10 to 15 knots decreasing to 5 to 10 knots
until early evening...then veering to the east by midnight. waves
1 to 3 feet. 


$$

fzus63 kdtx 150716
glflh 
expires:202607151530;;996025

open lake forecast for lake huron
national weather service detroit/pontiac mi
316 am edt wed jul 15 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 mainly dry cold front will drop south through the
central great lakes tonight and wednesday. weak high pressure
follows for thursday before the next low pressure system moves in
for the late week and early weekend time frame.


lhz362-363-151530-
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-
316 am edt wed jul 15 2026

.today...northwest winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. smoke. waves 1 to 3 feet. 
.tonight...northwest winds 10 to 15 knots increasing to 15 to
20 knots late in the evening...then decreasing to 10 to 15 knots
after midnight. smoke. waves 3 to 5 feet. 
.thursday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and afternoon. smoke in the morning.
waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning
and afternoon. 
.thursday night...northwest winds 10 to 15 knots becoming north
5 to 10 knots in the late evening and overnight. waves 2 to
4 feet subsiding to 1 to 3 feet after midnight. 
.friday...northeast winds 5 to 10 knots veering to the east. a
chance of showers...then showers likely late in the afternoon.
waves 2 feet or less. 
.saturday...north winds 5 to 10 knots increasing to 10 to
15 knots . showers likely early in the morning. a chance of
thunderstorms until early evening. a chance of showers early in
the evening. waves 1 to 3 feet. 
.sunday...north winds 5 to 10 knots until afternoon becoming
light and variable...then becoming southeast 5 to 10 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kmkx 150808
glflm 
expires:202607151530;;997812

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cdt wed jul 15 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...

high pressure around 30.2 inches over the midwest and great lakes
region will continue to bring dry and warm westerly winds across 
lake michigan through this morning. a weak area of low pressure 
around 29.9 inches will gradually work its way across lake 
superior and down lake michigan through the day pushing the high 
pressure out and bringing a northeasterly wind shift across the 
lake later today into thursday. will see lighter winds on 
thursday as high pressure around 30.1 inches briefly builds back 
in before influence from a low pressure around 29.7 inches 
developing over the northern plains push eastward through the 
weekend bringing more southwesterly flow. as a result a cold front
will drag across the lake resulting in northerly wind shift 
toward the end of the weekend. additionally will see periodic 
shower and thunderstorm chances across the lake for the end of the
week through the weekend.


lmz080-669-671-673-675-777-779-870-872-874-876-878-151530-
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-
308 am cdt wed jul 15 2026

sheboygan wi to pentwater mi south...

.today...west winds 10 to 15 kt veering to north 10 to 20 kt.
patchy smoke this afternoon. waves 1 to 2 ft. 
.tonight...northeast winds 10 to 15 kt diminishing to 5 to 10 kt.
smoke. waves 1 to 3 ft. 
.thursday...east winds 5 to 10 kt becoming northeast 10 to 20 kt.
smoke in the morning, then areas of smoke in the afternoon. waves
1 to 2 ft. 
.thursday night...northeast winds 10 to 15 kt becoming east.
areas of smoke in the evening. waves 1 to 2 ft. 
.friday...southeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.friday night...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.saturday...southwest winds 10 to 20 kt becoming west to 30 kt.
waves 2 to 4 ft building to 3 to 5 ft. 
.sunday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 2 to 4 ft subsiding to 1 to 3 ft.  

$$

fzus63 kmkx 150808
glflm 
expires:202607151530;;997811

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cdt wed jul 15 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...

high pressure around 30.2 inches over the midwest and great lakes
region will continue to bring dry and warm westerly winds across 
lake michigan through this morning. a weak area of low pressure 
around 29.9 inches will gradually work its way across lake 
superior and down lake michigan through the day pushing the high 
pressure out and bringing a northeasterly wind shift across the 
lake later today into thursday. will see lighter winds on 
thursday as high pressure around 30.1 inches briefly builds back 
in before influence from a low pressure around 29.7 inches 
developing over the northern plains push eastward through the 
weekend bringing more southwesterly flow. as a result a cold front
will drag across the lake resulting in northerly wind shift 
toward the end of the weekend. additionally will see periodic 
shower and thunderstorm chances across the lake for the end of the
week through the weekend.


lmz261-362-364-366-563-565-567-868-151530-
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-
308 am cdt wed jul 15 2026

sheboygan wi to pentwater mi north...

.today...northwest winds 10 to 15 kt becoming north 10 to 20 kt.
smoke. waves 1 to 2 ft. 
.tonight...north winds 10 to 20 kt diminishing to 5 to 10 kt.
smoke. waves 1 to 2 ft. 
.thursday...north winds 5 to 10 kt becoming northwest late in the
morning, then becoming west early in the afternoon becoming
northwest 10 to 20 kt late. areas of smoke. waves 1 to 2 ft.
.thursday night...northeast winds 10 to 15 kt becoming east 5 to
10 kt. areas of smoke in the evening. waves 1 to 2 ft. 
.friday...east winds 10 to 15 kt. chance of showers. waves 1 to
2 ft. 
.friday night...east winds 10 to 15 kt veering to south 10 to
20 kt. showers likely. waves 1 to 2 ft building to 1 to 3 ft. 
.saturday...west winds 15 to 25 kt veering to north to 30 kt.
chance of showers and thunderstorms. waves 3 to 5 ft.
.sunday...northeast winds 10 to 15 kt backing to southwest 10 to
20 kt. waves 1 to 3 ft.  

$$

fzus63 kmqt 151052
glfls 
expires:202607151900;;004121

open lake forecast for lake superior
national weather service marquette mi
652 am edt wed jul 15 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... 

30.1 inch ridging by wednesday morning persists until friday while 
retreating east towards the st. lawrence seaway. a low pressure of 
at least 29.8 inches passing through the northern plains could 
impact the upper great lakes this weekend, although uncertainty 
remains high on the track and strength of it. nevertheless, weak 
29.9 inch ridging does look to return to lake superior on sunday. 




lsz162-151900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
652 am edt wed jul 15 2026 /552 am cdt wed jul 15 2026/

...dense smoke advisory in effect until 8 am edt /7 am cdt/
thursday...

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

$$

fzus63 kmqt 151052
glfls 
expires:202607151900;;004122

open lake forecast for lake superior
national weather service marquette mi
652 am edt wed jul 15 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... 

30.1 inch ridging by wednesday morning persists until friday while 
retreating east towards the st. lawrence seaway. a low pressure of 
at least 29.8 inches passing through the northern plains could 
impact the upper great lakes this weekend, although uncertainty 
remains high on the track and strength of it. nevertheless, weak 
29.9 inch ridging does look to return to lake superior on sunday. 




lsz263-151900-
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-
652 am edt wed jul 15 2026

...dense smoke advisory in effect until 8 am edt thursday...

.early this morning...northwest winds 5 to 15 knots. smoke. waves
calm to 2 feet. 
.today...northwest winds 5 to 15 knots backing west in the
afternoon. smoke. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots. smoke. waves calm to 2 feet.
.thursday...northwest winds less than 10 knots becoming northeast
5 to 15 knots in the afternoon. smoke. a slight chance of showers
by mid afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. a chance of showers
and a slight chance of thunderstorms after midnight. waves calm
to 2 feet. 
.friday...east winds 5 to 15 knots. showers likely. waves calm to
2 feet. 
.friday night...northeast winds 5 to 15 knots. showers likely
through midnight. a chance of thunderstorms. a chance of showers
after midnight. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 
.sunday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 151052
glfls 
expires:202607151900;;004123

open lake forecast for lake superior
national weather service marquette mi
652 am edt wed jul 15 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... 

30.1 inch ridging by wednesday morning persists until friday while 
retreating east towards the st. lawrence seaway. a low pressure of 
at least 29.8 inches passing through the northern plains could 
impact the upper great lakes this weekend, although uncertainty 
remains high on the track and strength of it. nevertheless, weak 
29.9 inch ridging does look to return to lake superior on sunday. 




lsz264-151900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
652 am edt wed jul 15 2026

...dense smoke advisory in effect until 8 am edt thursday...

.early this morning...northwest winds 5 to 15 knots. smoke. waves
calm to 2 feet. 
.today...northwest winds 5 to 15 knots backing west in the
afternoon. smoke. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots. smoke. waves calm to 2 feet.
.thursday...northwest winds 5 to 15 knots becoming northeast less
than 10 knots in the afternoon, then becoming southwest 5 to
15 knots late. smoke. waves calm to 2 feet. 
.thursday night...west winds 5 to 15 knots backing southeast
after midnight. a slight chance of showers after midnight. waves
calm to 2 feet. 
.friday...southeast winds 5 to 15 knots. showers likely. waves
calm to 2 feet. 
.friday night...east winds 5 to 15 knots backing northeast after
midnight. showers likely through midnight. a chance of
thunderstorms. a chance of showers after midnight. waves calm to
2 feet. 
.saturday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 
.sunday...south winds 5 to 15 knots becoming southwest 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 151052
glfls 
expires:202607151900;;004124

open lake forecast for lake superior
national weather service marquette mi
652 am edt wed jul 15 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... 

30.1 inch ridging by wednesday morning persists until friday while 
retreating east towards the st. lawrence seaway. a low pressure of 
at least 29.8 inches passing through the northern plains could 
impact the upper great lakes this weekend, although uncertainty 
remains high on the track and strength of it. nevertheless, weak 
29.9 inch ridging does look to return to lake superior on sunday. 




lsz265-151900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
652 am edt wed jul 15 2026

...dense smoke advisory in effect until 8 am edt thursday...

.early this morning...west winds 10 to 20 knots. smoke. waves
calm to 2 feet. 
.today...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing west late. smoke. waves
calm to 2 feet. 
.tonight...west winds 5 to 15 knots increasing to 10 to 20 knots
after midnight. smoke. waves calm to 2 feet. 
.thursday...northwest winds 10 to 20 knots becoming north 5 to
15 knots in the afternoon. smoke. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots veering southeast
after midnight. a chance of showers after midnight. waves calm to
2 feet. 
.friday...southeast winds 10 to 20 knots backing east by mid
afternoon. showers likely. waves calm to 2 feet. 
.friday night...southeast winds 10 to 20 knots veering south
after midnight. showers through midnight. a chance of
thunderstorms. a chance of showers after midnight. waves calm to
2 feet. 
.saturday...north winds 10 to 20 knots becoming west 5 to
15 knots. waves calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots becoming south 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 151052
glfls 
expires:202607151900;;004125

open lake forecast for lake superior
national weather service marquette mi
652 am edt wed jul 15 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... 

30.1 inch ridging by wednesday morning persists until friday while 
retreating east towards the st. lawrence seaway. a low pressure of 
at least 29.8 inches passing through the northern plains could 
impact the upper great lakes this weekend, although uncertainty 
remains high on the track and strength of it. nevertheless, weak 
29.9 inch ridging does look to return to lake superior on sunday. 




lsz266-151900-
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-
652 am edt wed jul 15 2026

...dense smoke advisory in effect until 8 am edt thursday...

.early this morning...west winds 5 to 15 knots. areas of smoke.
waves calm to 2 feet. 
.today...northwest winds 10 to 20 knots becoming west 5 to
15 knots late. smoke. waves building to 1 to 3 feet. 
.tonight...west winds 5 to 15 knots. smoke. waves subsiding to
calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots veering north in the
afternoon, then backing northwest late. smoke. waves calm to
2 feet. 
.thursday night...northwest winds 5 to 15 knots backing southeast
after midnight. a slight chance of showers after midnight. waves
calm to 2 feet. 
.friday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. a chance of showers. waves calm to
2 feet. 
.friday night...southeast winds 10 to 20 knots. showers likely
through midnight. a chance of thunderstorms. a chance of showers
after midnight. waves calm to 2 feet. 
.saturday...north winds 10 to 20 knots becoming northwest 5 to
15 knots. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots increasing to 10 to 20 knots.
a chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 151052
glfls 
expires:202607151900;;004126

open lake forecast for lake superior
national weather service marquette mi
652 am edt wed jul 15 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... 

30.1 inch ridging by wednesday morning persists until friday while 
retreating east towards the st. lawrence seaway. a low pressure of 
at least 29.8 inches passing through the northern plains could 
impact the upper great lakes this weekend, although uncertainty 
remains high on the track and strength of it. nevertheless, weak 
29.9 inch ridging does look to return to lake superior on sunday. 




lsz267-151900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
652 am edt wed jul 15 2026

...dense smoke advisory in effect until 8 am edt thursday...

.early this morning...west winds 5 to 15 knots. areas of smoke.
waves calm to 2 feet. 
.today...west winds 5 to 15 knots increasing to 10 to 20 knots in
the afternoon. smoke. waves building to 1 to 3 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight. smoke. waves subsiding to calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots backing west in the
afternoon, then increasing to 10 to 20 knots late. smoke. waves
calm to 2 feet. 
.thursday night...northwest winds 5 to 15 knots veering east
after midnight. waves calm to 2 feet. 
.friday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. a chance of showers. waves calm to
2 feet. 
.friday night...southeast winds 10 to 20 knots. showers likely
and a chance of thunderstorms. waves calm to 2 feet. 
.saturday...north winds 10 to 20 knots becoming northwest 5 to
15 knots. a chance of showers. waves calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots veering south. a chance
of showers. waves building to 1 to 3 feet. 

$$