fzus63 kdtx 131951
glflh 
expires:202607140400;;915284

open lake forecast for lake huron
national weather service detroit/pontiac mi
351 pm edt mon jul 13 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...high pressure, 30.20 inches, will hold over iowa
through tomorrow. a mainly dry cold front will drop south through
the central great lakes tuesday night and wednesday. weak high
pressure follows for thursday.


lhz361-140400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
351 pm edt mon jul 13 2026

.tonight...west winds 10 to 15 knots becoming southwest after 
midnight. waves 1 to 3 feet. 
.tuesday...west winds 10 to 15 knots increasing to 15 to 20 knots.
waves 2 to 4 feet. 
.tuesday night...west winds 10 to 15 knots becoming northwest
5 to 10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 
.wednesday...northwest winds 5 to 10 knots. waves 2 feet or less.
.wednesday night...northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. waves 1 to 3 feet. 
.thursday...northwest winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon...then becoming north 5 to
10 knots late in the evening. a chance of showers late in the
evening. waves 1 to 3 feet. 
.friday...northeast winds 5 to 10 knots becoming southeast 10 to
15 knots. a chance of showers early in the morning. a chance of
thunderstorms until early evening. rain showers likely . waves
1 to 3 feet. 
.saturday...east winds 10 to 15 knots backing to the north . a
chance of showers. waves 1 to 3 feet. 


$$

fzus63 kdtx 131951
glflh 
expires:202607140400;;915285

open lake forecast for lake huron
national weather service detroit/pontiac mi
351 pm edt mon jul 13 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...high pressure, 30.20 inches, will hold over iowa
through tomorrow. a mainly dry cold front will drop south through
the central great lakes tuesday night and wednesday. weak high
pressure follows for thursday.


lhz362-363-140400-
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-
351 pm edt mon jul 13 2026

.tonight...south winds 10 to 15 knots becoming southwest early in
the morning. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots. waves 2 to 4 feet. 
.tuesday night...west winds 5 to 10 knots. waves 2 to 4 feet. 
.wednesday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.wednesday night...north winds 5 to 10 knots becoming northwest
10 to 15 knots by midnight...then becoming west 5 to 10 knots
after midnight. waves 2 to 4 feet. 
.thursday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.friday...north winds 5 to 10 knots veering to the east. a chance
of showers until early evening. rain showers likely by midnight.
waves 2 feet or less. 
.saturday...east winds 5 to 10 knots becoming north 10 to
15 knots . a chance of showers and thunderstorms...then a chance
of showers by midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 131951
glflh 
expires:202607140400;;915286

open lake forecast for lake huron
national weather service detroit/pontiac mi
351 pm edt mon jul 13 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...high pressure, 30.20 inches, will hold over iowa
through tomorrow. a mainly dry cold front will drop south through
the central great lakes tuesday night and wednesday. weak high
pressure follows for thursday.


lhz462>464-140400-
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-
351 pm edt mon jul 13 2026

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


$$

fzus63 kmkx 131944
glflm 
expires:202607140315;;915147

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
244 pm cdt mon jul 13 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 of 30.2 inches over the great lakes region will 
maintain an axis roughly from northern iowa to southern lower 
michigan through tonight and then sink into illinois and indiana 
tuesday and wednesday while weakening to 30.1 inches. low pressure
around 29.7 inches will approach from the northern plains 
thursday into friday. winds will remain south-southwesterly
through tuesday. a weak cold front will bring a wind shift to the
north-northeast wednesday into thursday.


lmz261-362-364-366-563-565-567-868-140315-
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-
244 pm cdt mon jul 13 2026

sheboygan wi to pentwater mi north...

.tonight...southwest winds 10 to 20 kt becoming west. waves 1 to
3 ft. 
.tuesday...west winds 10 to 20 kt becoming southwest. waves 1 to
3 ft. 
.tuesday night...southwest winds 15 to 25 kt becoming west 10 to
20 kt late in the evening, then becoming northwest after midnight
becoming north 10 to 15 kt late. waves 2 to 4 ft. 
.wednesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.wednesday night...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.thursday...northwest winds 5 to 10 kt becoming north. waves 1 ft
or less. 
.thursday night...northeast winds 10 to 15 kt becoming east.
waves 1 to 2 ft. 
.friday...southeast winds 10 to 20 kt. chance of showers and
thunderstorms. waves 1 to 3 ft. 
.saturday...north winds 10 to 20 kt becoming northeast to 30 kt.
chance of showers. waves 3 to 5 ft.  

$$

fzus63 kmkx 131944
glflm 
expires:202607140315;;915148

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
244 pm cdt mon jul 13 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 of 30.2 inches over the great lakes region will 
maintain an axis roughly from northern iowa to southern lower 
michigan through tonight and then sink into illinois and indiana 
tuesday and wednesday while weakening to 30.1 inches. low pressure
around 29.7 inches will approach from the northern plains 
thursday into friday. winds will remain south-southwesterly
through tuesday. a weak cold front will bring a wind shift to the
north-northeast wednesday into thursday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-140315-
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-
244 pm cdt mon jul 13 2026

sheboygan wi to pentwater mi south...

.tonight...southwest winds 10 to 15 kt becoming west. waves 1 to
2 ft. 
.tuesday...west winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 to 2 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 1 to 3 ft. 
.wednesday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 3 ft. 
.wednesday night...north winds 10 to 20 kt becoming northwest
5 to 10 kt overnight. waves 1 to 2 ft. 
.thursday...northwest winds 5 to 10 kt becoming north 10 to
15 kt. waves 1 ft or less. 
.thursday night...north winds 10 to 15 kt becoming northeast.
waves 1 to 2 ft. 
.friday...south winds 10 to 20 kt. waves 1 to 3 ft. 
.saturday...west winds 10 to 20 kt becoming north to 30 kt.
chance of showers. waves 3 to 5 ft.  

$$

fzus63 kmqt 132001
glfls 
expires:202607140800;;915543

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jul 13 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... 

this afternoon, lake superior is between a 30.1 to 30.2 inch high 
over the midwest and the southern half of the great lakes and a 29.4 
inch low over hudson bay. the high will remain steady tonight while 
the low shifts to the eastern shores of hudson bay while deepening 
to 29.3 inches. tuesday, despite a 30.1 inch high approaching from 
the canadian prairie, high pressure south of the great lakes weakens 
to 30.0 to 30.1 inches as the hudson low shifts into northern quebec 
at 29.2 inches. wednesday afternoon, the 30.1 inch high will move 
fully into manitoba as the low weakens slightly to 29.3 inches over 
labrador. by thursday night, the high will move over the great lakes 
and northern ontario at 30.1 inches, being flanked to the east by 
29.4 inch low pressure over labrador and 29.7 inch low pressure over 
north dakota and minnesota. the low moves into the great lakes by 
friday night as high pressure shifts to the east coast at 30.0 
inches with another 30.0 inch high building over the canadian 
prairie, which will advance towards the great lakes through the 
weekend.




lsz162-140800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt mon jul 13 2026 /301 pm cdt mon jul 13 2026/

.late this afternoon...southwest winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.tonight...southwest winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. waves subsiding to 2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then veering west late. waves
subsiding to 1 to 3 feet. 
.tuesday night...west winds 10 to 20 knots becoming north 5 to
15 knots after midnight, then backing northwest late. waves
subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest by
mid afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots veering northwest
after midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. 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
thunderstorms. waves calm to 2 feet. 
.friday...northeast winds 10 to 20 knots. a chance of showers.
waves building to 2 to 4 feet, then subsiding to calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 132001
glfls 
expires:202607140800;;915544

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jul 13 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... 

this afternoon, lake superior is between a 30.1 to 30.2 inch high 
over the midwest and the southern half of the great lakes and a 29.4 
inch low over hudson bay. the high will remain steady tonight while 
the low shifts to the eastern shores of hudson bay while deepening 
to 29.3 inches. tuesday, despite a 30.1 inch high approaching from 
the canadian prairie, high pressure south of the great lakes weakens 
to 30.0 to 30.1 inches as the hudson low shifts into northern quebec 
at 29.2 inches. wednesday afternoon, the 30.1 inch high will move 
fully into manitoba as the low weakens slightly to 29.3 inches over 
labrador. by thursday night, the high will move over the great lakes 
and northern ontario at 30.1 inches, being flanked to the east by 
29.4 inch low pressure over labrador and 29.7 inch low pressure over 
north dakota and minnesota. the low moves into the great lakes by 
friday night as high pressure shifts to the east coast at 30.0 
inches with another 30.0 inch high building over the canadian 
prairie, which will advance towards the great lakes through the 
weekend.




lsz263-140800-
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-
401 pm edt mon jul 13 2026

.late this afternoon...southwest winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet building to 4 to 7 feet
occasionally to 9 feet. 
.tonight...southwest winds 20 to 30 knots veering west late.
waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...west winds 15 to 25 knots diminishing to 10 to
20 knots late. waves subsiding to 2 to 4 feet. 
.tuesday night...west winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds less than 10 knots becoming
southwest 5 to 15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. a chance of showers.
a chance of thunderstorms after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots backing northeast. a chance
of showers. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.saturday...northeast winds 5 to 15 knots backing north. waves
calm to 2 feet. 

$$

fzus63 kmqt 132001
glfls 
expires:202607140800;;915545

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jul 13 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... 

this afternoon, lake superior is between a 30.1 to 30.2 inch high 
over the midwest and the southern half of the great lakes and a 29.4 
inch low over hudson bay. the high will remain steady tonight while 
the low shifts to the eastern shores of hudson bay while deepening 
to 29.3 inches. tuesday, despite a 30.1 inch high approaching from 
the canadian prairie, high pressure south of the great lakes weakens 
to 30.0 to 30.1 inches as the hudson low shifts into northern quebec 
at 29.2 inches. wednesday afternoon, the 30.1 inch high will move 
fully into manitoba as the low weakens slightly to 29.3 inches over 
labrador. by thursday night, the high will move over the great lakes 
and northern ontario at 30.1 inches, being flanked to the east by 
29.4 inch low pressure over labrador and 29.7 inch low pressure over 
north dakota and minnesota. the low moves into the great lakes by 
friday night as high pressure shifts to the east coast at 30.0 
inches with another 30.0 inch high building over the canadian 
prairie, which will advance towards the great lakes through the 
weekend.




lsz264-140800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt mon jul 13 2026

.late this afternoon...southwest winds 20 to 30 knots. waves 3 to
5 feet occasionally to 7 feet building to 4 to 7 feet
occasionally to 9 feet. 
.tonight...southwest winds 20 to 30 knots veering west after
midnight. waves building to 4 to 8 feet occasionally to 10 feet. 
.tuesday...west winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon, then becoming southwest 10 to 20 knots
late. waves subsiding to 1 to 3 feet. 
.tuesday night...west winds 5 to 15 knots veering northwest after
midnight, then backing west late. waves subsiding to calm to
2 feet. 
.wednesday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 5 to 15 knots veering east
after midnight. a chance of showers. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots backing northeast. a chance of
showers. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots backing northwest.
waves calm to 2 feet. 

$$

fzus63 kmqt 132001
glfls 
expires:202607140800;;915546

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jul 13 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... 

this afternoon, lake superior is between a 30.1 to 30.2 inch high 
over the midwest and the southern half of the great lakes and a 29.4 
inch low over hudson bay. the high will remain steady tonight while 
the low shifts to the eastern shores of hudson bay while deepening 
to 29.3 inches. tuesday, despite a 30.1 inch high approaching from 
the canadian prairie, high pressure south of the great lakes weakens 
to 30.0 to 30.1 inches as the hudson low shifts into northern quebec 
at 29.2 inches. wednesday afternoon, the 30.1 inch high will move 
fully into manitoba as the low weakens slightly to 29.3 inches over 
labrador. by thursday night, the high will move over the great lakes 
and northern ontario at 30.1 inches, being flanked to the east by 
29.4 inch low pressure over labrador and 29.7 inch low pressure over 
north dakota and minnesota. the low moves into the great lakes by 
friday night as high pressure shifts to the east coast at 30.0 
inches with another 30.0 inch high building over the canadian 
prairie, which will advance towards the great lakes through the 
weekend.




lsz265-140800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt mon jul 13 2026

.late this afternoon...west winds 15 to 25 knots. waves 1 to
3 feet. 
.tonight...southwest winds 15 to 25 knots becoming west 20 to
30 knots after midnight, then increasing to 30 knots with a few
gale force gusts to 35 knots possible late. waves building to
3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 20 to 30 knots becoming northwest 10 to
20 knots late. waves subsiding to calm to 2 feet. 
.tuesday night...west winds 5 to 15 knots veering northwest after
midnight, then backing west late. waves calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots veering north by mid
afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots becoming east
10 to 20 knots after midnight. a chance of showers. waves calm to
2 feet. 
.friday...southeast winds 10 to 20 knots backing east. a chance
of showers and thunderstorms. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots backing north. a
chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 132001
glfls 
expires:202607140800;;915547

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jul 13 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... 

this afternoon, lake superior is between a 30.1 to 30.2 inch high 
over the midwest and the southern half of the great lakes and a 29.4 
inch low over hudson bay. the high will remain steady tonight while 
the low shifts to the eastern shores of hudson bay while deepening 
to 29.3 inches. tuesday, despite a 30.1 inch high approaching from 
the canadian prairie, high pressure south of the great lakes weakens 
to 30.0 to 30.1 inches as the hudson low shifts into northern quebec 
at 29.2 inches. wednesday afternoon, the 30.1 inch high will move 
fully into manitoba as the low weakens slightly to 29.3 inches over 
labrador. by thursday night, the high will move over the great lakes 
and northern ontario at 30.1 inches, being flanked to the east by 
29.4 inch low pressure over labrador and 29.7 inch low pressure over 
north dakota and minnesota. the low moves into the great lakes by 
friday night as high pressure shifts to the east coast at 30.0 
inches with another 30.0 inch high building over the canadian 
prairie, which will advance towards the great lakes through the 
weekend.




lsz266-140800-
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-
401 pm edt mon jul 13 2026

.late this afternoon...south winds 15 to 25 knots. waves 3 to
6 feet occasionally to 8 feet. 
.tonight...southwest winds 20 to 30 knots veering west after
midnight. waves building to 5 to 8 feet occasionally to 10 feet. 
.tuesday...west winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. waves subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 5 to 15 knots. waves subsiding
to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots backing northwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 5 to 15 knots veering east
after midnight. a chance of showers. waves calm to 2 feet. 
.friday...southeast winds 10 to 20 knots backing east. a chance
of showers. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.saturday...northeast winds 10 to 20 knots backing north. a
chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 132001
glfls 
expires:202607140800;;915548

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon jul 13 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... 

this afternoon, lake superior is between a 30.1 to 30.2 inch high 
over the midwest and the southern half of the great lakes and a 29.4 
inch low over hudson bay. the high will remain steady tonight while 
the low shifts to the eastern shores of hudson bay while deepening 
to 29.3 inches. tuesday, despite a 30.1 inch high approaching from 
the canadian prairie, high pressure south of the great lakes weakens 
to 30.0 to 30.1 inches as the hudson low shifts into northern quebec 
at 29.2 inches. wednesday afternoon, the 30.1 inch high will move 
fully into manitoba as the low weakens slightly to 29.3 inches over 
labrador. by thursday night, the high will move over the great lakes 
and northern ontario at 30.1 inches, being flanked to the east by 
29.4 inch low pressure over labrador and 29.7 inch low pressure over 
north dakota and minnesota. the low moves into the great lakes by 
friday night as high pressure shifts to the east coast at 30.0 
inches with another 30.0 inch high building over the canadian 
prairie, which will advance towards the great lakes through the 
weekend.




lsz267-140800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt mon jul 13 2026

.late this afternoon...south winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...south winds 5 to 15 knots becoming west 10 to 20 knots
after midnight, then increasing to 15 to 25 knots late. waves
building to 5 to 8 feet occasionally to 10 feet. 
.tuesday...west winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to 2 to 4 feet. 
.tuesday night...west winds 5 to 15 knots increasing to 10 to
20 knots late. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...northwest winds 5 to 15 knots becoming west 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 5 to 15 knots veering east
after midnight. a chance of showers after midnight. waves calm to
2 feet. 
.friday...east winds 10 to 20 knots. a chance of showers. waves
calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots backing north. a
chance of showers. waves calm to 2 feet. 

$$