fzus63 kdtx 190304
glflh 
expires:202511191115;;112326

open lake forecast for lake huron
national weather service detroit/pontiac mi
1004 pm est tue nov 18 2025

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.20 inches, moves into the great
lakes wednesday ensuring dry conditions and light winds. a weak
cold front tracks across the region thursday night, supporting
organized southwest flow and increasing rain chances.


lhz361-362-191115-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
1004 pm est tue nov 18 2025

.rest of tonight...northwest winds 5 to 10 knots. waves 2 feet or
less. 
.wednesday...west winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.wednesday night...light and variable winds becoming south 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.thursday...southwest winds 10 to 15 knots becoming south 15 to
20 knots early in the afternoon. a chance of rain in the
afternoon. waves 1 to 3 feet building to 3 to 5 feet in the late
morning and afternoon. 
.thursday night...southwest winds 15 to 20 knots veering to the
west after midnight. rain likely in the evening. waves 4 to
6 feet. waves occasionally around 8 feet. 
.friday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. waves 3 to 5 feet. 
.saturday...west winds 5 to 10 knots backing to the southwest
until early evening...then increasing to 10 to 15 knots in the
late evening and early morning. waves 1 to 3 feet. 
.sunday...west winds 10 to 15 knots. waves 2 to 4 feet subsiding
to 1 to 3 feet in the late evening and early morning. 


$$

fzus63 kdtx 190304
glflh 
expires:202511191115;;112327

open lake forecast for lake huron
national weather service detroit/pontiac mi
1004 pm est tue nov 18 2025

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.20 inches, moves into the great
lakes wednesday ensuring dry conditions and light winds. a weak
cold front tracks across the region thursday night, supporting
organized southwest flow and increasing rain chances.


lhz363-462>464-191115-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
1004 pm est tue nov 18 2025

.rest of tonight...north winds 5 to 10 knots. waves 2 feet or
less. 
.wednesday...north winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.wednesday night...light and variable winds becoming south 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots becoming south 10 to
15 knots in the late morning and afternoon. a chance of rain in
the afternoon. waves 1 to 3 feet building to 2 to 4 feet in the
late morning and afternoon. 
.thursday night...southwest winds 15 to 20 knots. rain likely in
the evening...then a chance of rain after midnight. waves 3 to
5 feet. 
.friday...west winds 15 to 20 knots becoming northwest 5 to
10 knots. waves 3 to 5 feet. 
.saturday...northwest winds 5 to 10 knots backing to the
southwest until early evening...then increasing to 10 to 15 knots
in the late evening and early morning. waves 1 to 3 feet. 
.sunday...west winds 10 to 15 knots. waves 2 to 4 feet. 


$$

fzus63 kmkx 190258
glflm 
expires:202511191015;;111941

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
858 pm cst tue nov 18 2025

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

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

.synopsis...

winds will gradually diminish across lake michigan late tonight 
through wednesday as 30.2 inch high pressure builds across the 
western great lakes. 29.6 inch low pressure will develop along the
ontario-manitoba border wednesday night, deepening to near 29.5 
inches over the hudson bay by thursday afternoon. the low 
development and progression will result in a southwest wind shift 
across lake michigan, with winds becoming gusty late thursday 
morning and afternoon. highest gusts are expected over the 
northern third of the waters, where 20-25 kt readings are 
currently forecast. gales are not expected, though trends will 
continue to be monitored. a cold front will cross the waters 
thursday night, resulting in northwest winds friday into saturday 
morning. 


lmz261-362-364-366-563-565-567-868-191015-
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-
858 pm cst tue nov 18 2025

sheboygan wi to pentwater mi north...

.rest of tonight...northeast winds 5 to 10 kt becoming north.
waves 1 to 2 ft. 
.wednesday...northwest winds less than 10 kt backing to
southwest. waves 1 ft or less. 
.wednesday night...southwest winds 10 to 15 kt increasing to
10 to 20 kt. waves 1 to 3 ft. 
.thursday...southwest winds 15 to 25 kt. chance of rain in the
morning, then rain likely in the afternoon. waves 3 to 5 ft. 
.thursday night...west winds 15 to 25 kt becoming northwest 10 to
20 kt. waves 3 to 5 ft. 
.friday...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.friday night...northwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.saturday...southwest winds 10 to 20 kt. waves 1 to 2 ft building
to 1 to 3 ft. 
.sunday...west winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 190258
glflm 
expires:202511191015;;111942

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
858 pm cst tue nov 18 2025

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

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

.synopsis...

winds will gradually diminish across lake michigan late tonight 
through wednesday as 30.2 inch high pressure builds across the 
western great lakes. 29.6 inch low pressure will develop along the
ontario-manitoba border wednesday night, deepening to near 29.5 
inches over the hudson bay by thursday afternoon. the low 
development and progression will result in a southwest wind shift 
across lake michigan, with winds becoming gusty late thursday 
morning and afternoon. highest gusts are expected over the 
northern third of the waters, where 20-25 kt readings are 
currently forecast. gales are not expected, though trends will 
continue to be monitored. a cold front will cross the waters 
thursday night, resulting in northwest winds friday into saturday 
morning. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-191015-
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-
858 pm cst tue nov 18 2025

sheboygan wi to pentwater mi south...

.rest of tonight...northeast winds 10 to 20 kt diminishing to
10 to 15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday...east winds 10 to 15 kt becoming southeast 5 to
10 kt. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.wednesday night...southeast winds 5 to 10 kt becoming southwest.
waves 1 to 2 ft. 
.thursday...southwest winds 10 to 20 kt. chance of rain in the
afternoon. waves 1 to 3 ft building to 2 to 4 ft. 
.thursday night...west winds 10 to 20 kt becoming northwest.
chance of rain in the evening. waves 3 to 5 ft. 
.friday...northwest winds 10 to 20 kt. waves 3 to 5 ft. 
.friday night...north winds 10 to 15 kt becoming northeast. waves
1 to 3 ft. 
.saturday...southeast winds 10 to 15 kt becoming south. waves
1 to 3 ft. 
.sunday...west winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmqt 190301
glfls 
expires:202511190900;;112205

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 18 2025

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

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

.synopsis...

high pressure averaging 30.2 inches persists over lake superior as a 
28.9 inch low lifts away from labrador. 30.2 inch ridging continues 
to encompass the great lakes basin wednesday, shifting into new 
england wednesday night and thursday as a 29.7 inch low develops 
over far northern ontario. high pressure ridging of around 30.1 
inches develops over the northern plains and upper midwest on friday 
before moving into the great lakes region by saturday. meanwhile, 
troughing of 29.8 inches moves over lake superior on saturday before 
weakening to 29.9 inches over the lake by sunday. another high 
pressure of around 30.2 inches builds over the northern plains 
sunday night before moving into the western great lakes monday 
evening.



lsz162-190900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm est tue nov 18 2025 /901 pm cst tue nov 18 2025/

.rest of tonight...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.wednesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. a slight chance of rain showers in the afternoon. waves
building to 1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots by midnight, then diminishing to 10 to 20 knots
late. a chance of rain showers in the evening, then rain showers
likely after midnight. waves building to 2 to 4 feet. 
.thursday...west winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a chance of rain showers in the
morning. waves subsiding to 1 to 3 feet. 
.thursday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves 1 to 3 feet. 
.friday...northwest winds 10 to 20 knots becoming west 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.friday night...west winds 5 to 15 knots backing southwest after
midnight. waves calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots veering west. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.sunday...west winds 10 to 20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 190301
glfls 
expires:202511190900;;112206

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 18 2025

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

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

.synopsis...

high pressure averaging 30.2 inches persists over lake superior as a 
28.9 inch low lifts away from labrador. 30.2 inch ridging continues 
to encompass the great lakes basin wednesday, shifting into new 
england wednesday night and thursday as a 29.7 inch low develops 
over far northern ontario. high pressure ridging of around 30.1 
inches develops over the northern plains and upper midwest on friday 
before moving into the great lakes region by saturday. meanwhile, 
troughing of 29.8 inches moves over lake superior on saturday before 
weakening to 29.9 inches over the lake by sunday. another high 
pressure of around 30.2 inches builds over the northern plains 
sunday night before moving into the western great lakes monday 
evening.



lsz263-190900-
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-
1001 pm est tue nov 18 2025

.rest of tonight...west winds less than 10 knots becoming
southwest 5 to 15 knots late. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots by midnight. a chance of rain showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots veering west in the
afternoon. rain showers likely in the morning, then a slight
chance of rain showers in the afternoon. waves 3 to 5 feet
occasionally to 7 feet. 
.thursday night...west winds 15 to 25 knots. waves 3 to 5 feet
occasionally to 7 feet. 
.friday...northwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon. waves subsiding to calm to 2 feet. 
.friday night...west winds 5 to 15 knots backing southwest after
midnight. waves calm to 2 feet. 
.saturday...southwest winds 15 to 25 knots becoming west 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

$$

fzus63 kmqt 190301
glfls 
expires:202511190900;;112207

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 18 2025

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

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

.synopsis...

high pressure averaging 30.2 inches persists over lake superior as a 
28.9 inch low lifts away from labrador. 30.2 inch ridging continues 
to encompass the great lakes basin wednesday, shifting into new 
england wednesday night and thursday as a 29.7 inch low develops 
over far northern ontario. high pressure ridging of around 30.1 
inches develops over the northern plains and upper midwest on friday 
before moving into the great lakes region by saturday. meanwhile, 
troughing of 29.8 inches moves over lake superior on saturday before 
weakening to 29.9 inches over the lake by sunday. another high 
pressure of around 30.2 inches builds over the northern plains 
sunday night before moving into the western great lakes monday 
evening.



lsz264-190900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm est tue nov 18 2025

.rest of tonight...west winds less than 10 knots increasing to
5 to 15 knots by midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots by midnight. a chance of rain showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots veering west in the
afternoon. rain showers in the morning, then a chance of rain
showers in the afternoon. waves 3 to 5 feet occasionally to
7 feet. 
.thursday night...northwest winds 15 to 25 knots backing west
after midnight. waves building to 3 to 6 feet occasionally to
8 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.friday night...northwest winds 5 to 15 knots backing southwest
after midnight. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 15 to 25 knots becoming west 10 to
20 knots. waves building to 2 to 4 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 190301
glfls 
expires:202511190900;;112208

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 18 2025

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

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

.synopsis...

high pressure averaging 30.2 inches persists over lake superior as a 
28.9 inch low lifts away from labrador. 30.2 inch ridging continues 
to encompass the great lakes basin wednesday, shifting into new 
england wednesday night and thursday as a 29.7 inch low develops 
over far northern ontario. high pressure ridging of around 30.1 
inches develops over the northern plains and upper midwest on friday 
before moving into the great lakes region by saturday. meanwhile, 
troughing of 29.8 inches moves over lake superior on saturday before 
weakening to 29.9 inches over the lake by sunday. another high 
pressure of around 30.2 inches builds over the northern plains 
sunday night before moving into the western great lakes monday 
evening.



lsz265-190900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm est tue nov 18 2025

.rest of tonight...northwest winds 5 to 15 knots backing west by
midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots by midnight. a chance of rain showers after
midnight. waves calm to 2 feet. 
.thursday...southwest winds 15 to 25 knots becoming west 20 to
30 knots in the afternoon. rain showers likely. waves building to
2 to 4 feet. 
.thursday night...west winds 20 to 30 knots. a slight chance of
rain showers in the evening. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. waves subsiding to calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots backing southwest
after midnight. waves calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots becoming west 15 to
25 knots. waves calm to 2 feet. 
.sunday...west winds 15 to 25 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 190301
glfls 
expires:202511190900;;112209

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 18 2025

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

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

.synopsis...

high pressure averaging 30.2 inches persists over lake superior as a 
28.9 inch low lifts away from labrador. 30.2 inch ridging continues 
to encompass the great lakes basin wednesday, shifting into new 
england wednesday night and thursday as a 29.7 inch low develops 
over far northern ontario. high pressure ridging of around 30.1 
inches develops over the northern plains and upper midwest on friday 
before moving into the great lakes region by saturday. meanwhile, 
troughing of 29.8 inches moves over lake superior on saturday before 
weakening to 29.9 inches over the lake by sunday. another high 
pressure of around 30.2 inches builds over the northern plains 
sunday night before moving into the western great lakes monday 
evening.



lsz266-190900-
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-
1001 pm est tue nov 18 2025

.rest of tonight...northwest winds 5 to 15 knots backing west by
midnight. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing southwest by late
morning, then increasing to 10 to 20 knots by mid afternoon.
waves calm to 2 feet. 
.wednesday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots by midnight. a chance of rain showers after
midnight. waves building to 2 to 4 feet. 
.thursday...southwest winds 15 to 25 knots becoming west 20 to
30 knots in the afternoon. rain showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.thursday night...northwest winds 20 to 30 knots. a chance of
rain showers. waves building to 4 to 7 feet occasionally to
9 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. a chance of rain showers in the
morning. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...northwest winds 5 to 15 knots backing southwest
after midnight. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots becoming west 15 to
25 knots. a chance of rain showers. waves building to 2 to
4 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of rain showers. waves subsiding to 1 to
3 feet. 

$$

fzus63 kmqt 190301
glfls 
expires:202511190900;;112210

open lake forecast for lake superior
national weather service marquette mi
1001 pm est tue nov 18 2025

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

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

.synopsis...

high pressure averaging 30.2 inches persists over lake superior as a 
28.9 inch low lifts away from labrador. 30.2 inch ridging continues 
to encompass the great lakes basin wednesday, shifting into new 
england wednesday night and thursday as a 29.7 inch low develops 
over far northern ontario. high pressure ridging of around 30.1 
inches develops over the northern plains and upper midwest on friday 
before moving into the great lakes region by saturday. meanwhile, 
troughing of 29.8 inches moves over lake superior on saturday before 
weakening to 29.9 inches over the lake by sunday. another high 
pressure of around 30.2 inches builds over the northern plains 
sunday night before moving into the western great lakes monday 
evening.



lsz267-190900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm est tue nov 18 2025

.rest of tonight...northwest winds 10 to 20 knots backing west
late. waves calm to 2 feet. 
.wednesday...west winds 10 to 20 knots backing southwest. waves
calm to 2 feet. 
.wednesday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots by midnight. a slight chance of rain showers after
midnight. waves building to 2 to 4 feet. 
.thursday...southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. rain showers. waves building to 3 to
5 feet occasionally to 7 feet. 
.thursday night...west winds 20 to 30 knots veering northwest
after midnight. rain showers likely in the evening, then a chance
of rain showers after midnight. waves building to 4 to 7 feet
occasionally to 9 feet. 
.friday...northwest winds 20 to 30 knots. a chance of rain and
snow showers. waves building to 5 to 8 feet occasionally to
10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...northwest winds 10 to 20 knots backing west after
midnight. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots becoming west 15 to
25 knots. a chance of rain showers. waves building to 2 to
4 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of rain showers. waves 2 to 4 feet. 

$$