fzus61 kbuf 121503
glflo 
expires:202611122200;;697339

open lake forecast for lake america
national weather service buffalo ny
1003 am est thu nov 12 2026

for waters beyond five nautical miles of shore on lake america

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 29.5 inch low over the ohio valley will give way to a 
secondary low just off the delmarva this afternoon. this 29.3 inch 
coastal low will move northeast and offshore of the new england 
coast tonight through friday night before moving into the canadian 
maritimes saturday while deepening to 29.1 inches. a 30.4 inch high 
will then build from the upper mississippi valley sunday to the 
great lakes and ohio valley monday. this high will become nearly 
stationary over the ohio valley and mid atlantic through at least 
the middle of next week.


loz063>065-122200-
lake america open waters from hamlin beach to the saint lawrence
river-
1003 am est thu nov 12 2026

.this afternoon...northeast winds 20 to 25 knots. rain, then a
chance of showers late. waves 5 to 9 feet. waves occasionally
around 11 feet. 
.tonight...northeast winds 20 to 25 knots. a chance of rain
showers early. waves 5 to 8 feet. waves occasionally around
10 feet. 
.friday...north winds 15 to 25 knots. a chance of rain showers in
the morning. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.friday night...north winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.saturday...north winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of rain showers. waves 1 to 3 feet building to
2 to 4 feet. 
.sunday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.monday...northwest winds 5 to 10 knots becoming west. waves
2 feet or less. 

$$

fzus61 kbuf 121503
glflo 
expires:202611122200;;697338

open lake forecast for lake america
national weather service buffalo ny
1003 am est thu nov 12 2026

for waters beyond five nautical miles of shore on lake america

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 29.5 inch low over the ohio valley will give way to a 
secondary low just off the delmarva this afternoon. this 29.3 inch 
coastal low will move northeast and offshore of the new england 
coast tonight through friday night before moving into the canadian 
maritimes saturday while deepening to 29.1 inches. a 30.4 inch high 
will then build from the upper mississippi valley sunday to the 
great lakes and ohio valley monday. this high will become nearly 
stationary over the ohio valley and mid atlantic through at least 
the middle of next week.


loz062-122200-
lake america open waters from the niagara river to hamlin beach-
1003 am est thu nov 12 2026

.this afternoon...northeast winds 20 to 25 knots. a chance of
showers. waves 5 to 9 feet. waves occasionally around 11 feet. 
.tonight...northeast winds 15 to 25 knots. waves 4 to 7 feet.
waves occasionally around 9 feet. 
.friday...north winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.friday night...north winds 10 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.saturday...northwest winds 10 to 15 knots. waves 2 to 4 feet. 
.sunday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 
.monday...northwest winds 5 to 10 knots becoming west. waves
1 foot or less. 

$$

fzus61 kcle 121457
glfle 
expires:202611122115;;696905

open lake forecast for lake erie
national weather service cleveland oh
957 am est thu nov 12 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis... 
low pressure 29.60 inches tracking across the ohio valley early 
this morning will exit to off the mid atlantic coast today as a
sharp trough averaging 29.80 inches lingers across the lake
through this afternoon. weaker troughing averaging 30.00 inches
then persists for friday and the weekend. high pressure 30.40
inches builds over the lake early next week.


lez164>167-122115-
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-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
957 am est thu nov 12 2026

.rest of today...northeast winds to 30 knots. a chance of
waterspouts. a chance of showers late this morning, then showers
likely this afternoon. waves 4 to 7 feet building to 6 to 9 feet.
waves occasionally around 11 feet. 
.tonight...northeast winds to 30 knots becoming north and
diminishing to 15 to 20 knots. a chance of waterspouts early.
showers likely early, then a slight chance of showers from late
evening on. waves 5 to 9 feet subsiding to 3 to 6 feet. waves
occasionally around 11 feet. 
.friday...north winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers in the afternoon. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.friday night...north winds 15 to 20 knots becoming northwest. a
chance of showers. waves 2 to 4 feet building to 3 to 5 feet. 
.saturday...northwest winds 15 to 20 knots. a chance of showers
during the day, then showers likely saturday night. waves 3 to
5 feet. 
.sunday...northwest winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of showers during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.monday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 

$$

fzus61 kcle 121457
glfle 
expires:202611122115;;696906

open lake forecast for lake erie
national weather service cleveland oh
957 am est thu nov 12 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis... 
low pressure 29.60 inches tracking across the ohio valley early 
this morning will exit to off the mid atlantic coast today as a
sharp trough averaging 29.80 inches lingers across the lake
through this afternoon. weaker troughing averaging 30.00 inches
then persists for friday and the weekend. high pressure 30.40
inches builds over the lake early next week.


lez061-168-169-122115-
ripley to buffalo ny extending from 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-
957 am est thu nov 12 2026

.rest of today...northeast winds to 30 knots. showers likely late
this morning, then a chance of showers early this afternoon.
showers likely late. waves 5 to 9 feet. waves occasionally around
11 feet. 
.tonight...north winds 15 to 25 knots. rain showers likely early,
then a slight chance of rain showers from late evening on. waves
5 to 8 feet subsiding to 3 to 6 feet. waves occasionally around
10 feet. 
.friday...north winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of rain showers in the morning. waves 3 to
5 feet subsiding to 2 to 4 feet. 
.friday night...north winds 10 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.saturday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of rain showers. waves 2 to 4 feet building to
3 to 5 feet, then subsiding to 2 to 4 feet. 
.sunday...northwest winds 10 to 15 knots. a chance of showers
during the day. waves 1 to 3 feet. 
.monday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 

$$

fzus61 kcle 121457
glfle 
expires:202611122115;;696904

open lake forecast for lake erie
national weather service cleveland oh
957 am est thu nov 12 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis... 
low pressure 29.60 inches tracking across the ohio valley early 
this morning will exit to off the mid atlantic coast today as a
sharp trough averaging 29.80 inches lingers across the lake
through this afternoon. weaker troughing averaging 30.00 inches
then persists for friday and the weekend. high pressure 30.40
inches builds over the lake early next week.


lez162-163-122115-
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-
957 am est thu nov 12 2026

.rest of today...north winds 15 to 25 knots. a slight chance of
showers late this morning, then showers likely this afternoon. a
chance of waterspouts this afternoon. waves 2 to 4 feet building
to 4 to 7 feet. waves occasionally around 9 feet. 
.tonight...north winds 15 to 25 knots. a chance of waterspouts
early. a chance of rain showers early, then a slight chance of
rain showers from late evening on. waves 4 to 7 feet subsiding to
2 to 4 feet. waves occasionally around 9 feet. 
.friday...north winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of rain showers. waves 1 to 3 feet. 
.friday night...north winds 15 to 20 knots becoming northwest. a
chance of rain showers in the evening. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.saturday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 
.sunday...northwest winds 5 to 15 knots. waves 2 feet or less. 
.monday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 

$$

fzus63 kdtx 121453
glflh 
expires:202611122300;;696772

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 am est thu nov 12 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...low pressure, 29.50 inches, travels east across the
ohio valley today. this will reinforce northeast to north flow
across the great lakes, allowing winds to rapidly increase this
morning and through tomorrow. numerous to widespread lake effect
rain showers will also be likely to end the week.


lhz363-462-122300-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
953 am est thu nov 12 2026

.rest of today...northeast winds 20 to 25 knots with gusts to
around 30 knots. waves 8 to 12 feet. waves occasionally around
15 feet. 
.tonight...north winds 20 to 25 knots decreasing to 15 to
20 knots in the late evening and overnight. scattered showers in
the evening...then scattered rain and snow showers after
midnight. waves 5 to 7 feet. waves occasionally around 10 feet. 
.friday...north winds 15 to 20 knots. a chance of rain and snow
showers in the morning...then a chance of showers in the
afternoon. waves 5 to 7 feet. waves occasionally around 10 feet. 
.friday night...northwest winds 15 to 20 knots. a chance of
showers. waves 5 to 7 feet. waves occasionally around 10 feet. 
.saturday...north winds 15 to 20 knots becoming northwest 10 to
15 knots late in the evening. showers likely in the morning...
then a chance of showers. waves 4 to 6 feet. 
.sunday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots by midnight. a chance of showers early in the morning.
waves 2 to 4 feet subsiding to 1 to 3 feet . waves occasionally
around 8 feet. 
.monday...west winds 5 to 10 knots backing to the southwest early
in the evening...then increasing to 10 to 15 knots by midnight.
waves 2 feet or less. 


$$

fzus63 kdtx 121453
glfsc 
expires:202611122300;;696770

lake st clair forecast
national weather service detroit/pontiac mi
953 am est thu nov 12 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...low pressure, 29.50 inches, travels east across the
ohio valley today. this will reinforce northeast to north flow
across the great lakes, allowing winds to rapidly increase this
morning and through tomorrow. numerous to widespread lake effect
showers will also be likely to end the week.


lcz460-122300-
lake st clair-
953 am est thu nov 12 2026

...small craft advisory in effect through late tonight...

.rest of today...north winds 10 to 15 knots increasing to 20 to 25
knots with gusts to 30 knots. mostly cloudy with scattered light
showers. waves 1 to 3 feet building to 2 to 4 feet late in the
afternoon.
.tonight...north winds 20 to 25 knots with gusts to 30 knots
diminishing to 10 to 15 knots. mostly cloudy. scattered light
showers after midnight. scattered light snow showers early in the
morning. waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.
.friday...north winds 10 to 15 knots diminishing to 5 to 10 knots in
the late morning and early afternoon...then increasing to 15 to 20
knots early in the afternoon. mostly cloudy. a chance of light rain
and snow showers until late afternoon...then a chance of light
showers early in the afternoon. waves 2 feet or less.
.friday night...northwest winds 15 to 20 knots. partly cloudy. waves
1 to 3 feet.
.saturday...northwest winds 15 to 20 knots diminishing to 10 to 15
knots in the afternoon and evening. partly cloudy. waves 1 to 3
feet.
.sunday...northwest winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
.monday...southwest winds 5 to 10 knots. partly cloudy. waves 2 feet
or less.

$$

fzus63 kdtx 121453
glflh 
expires:202611122300;;696771

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 am est thu nov 12 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...low pressure, 29.50 inches, travels east across the
ohio valley today. this will reinforce northeast to north flow
across the great lakes, allowing winds to rapidly increase this
morning and through tomorrow. numerous to widespread lake effect
rain showers will also be likely to end the week.


lhz361-362-122300-
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-
953 am est thu nov 12 2026

.rest of today...northeast winds 20 to 25 knots with gusts to
around 30 knots becoming north 15 to 20 knots in the afternoon.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.tonight...north winds 15 to 20 knots. waves 3 to 5 feet. 
.friday...north winds 15 to 20 knots. waves 3 to 5 feet. 
.friday night...north winds 15 to 20 knots. a chance of showers
after midnight. waves 3 to 5 feet. 
.saturday...north winds 15 to 20 knots decreasing to 10 to
15 knots late in the evening. a chance of showers in the morning.
waves 2 to 4 feet. 
.sunday...north winds 10 to 15 knots becoming northwest 5 to
10 knots . waves 1 to 3 feet. 
.monday...west winds 5 to 10 knots backing to the southwest.
waves 2 feet or less. 


$$

fzus63 kdtx 121453
glflh 
expires:202611122300;;696773

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 am est thu nov 12 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...low pressure, 29.50 inches, travels east across the
ohio valley today. this will reinforce northeast to north flow
across the great lakes, allowing winds to rapidly increase this
morning and through tomorrow. numerous to widespread lake effect
rain showers will also be likely to end the week.


lhz463-464-122300-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
953 am est thu nov 12 2026

.rest of today...northeast winds 20 to 25 knots. gusts to
30 knots late in the afternoon. scattered showers late in the
morning. waves 6 to 9 feet. waves occasionally around 12 feet. 
.tonight...north winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late evening and
overnight. scattered showers in the evening...then numerous
showers after midnight. waves 5 to 7 feet. waves occasionally
around 10 feet. 
.friday...northeast winds 10 to 15 knots becoming north 15 to
20 knots in the late morning and afternoon. showers likely in the
morning...then a chance of showers in the afternoon. waves 4 to
6 feet. 
.friday night...northwest winds 15 to 20 knots. showers likely.
waves 4 to 6 feet. 
.saturday...northwest winds 15 to 20 knots. showers...then
showers likely late in the afternoon. a chance of showers late in
the evening. waves 4 to 6 feet. 
.sunday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots by midnight. a chance of showers early in the morning.
waves 2 to 4 feet subsiding to 1 to 3 feet by midnight. waves
occasionally around 8 feet. 
.monday...west winds 5 to 10 knots backing to the southwest by
midnight. waves 2 feet or less. 


$$

fzus63 kmkx 121421
glflm 
expires:202611122215;;696284

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
821 am cst thu nov 12 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...

29.5 inch low pressure will advance into the northeastern united 
states today. progression of the low will support continued 
increases in northerly winds, with gusts exceeding gale force 
through this evening as 30.4 inch high pressure builds into the 
canadian great plains. a gale warning remains in effect until 9 pm
cst this evening over the southern two-thirds of the waters. 
northerly winds will remain steadily breezy---though below gale 
thresholds---through the day on friday as the aforementioned high
nudges east toward the hudson bay. winds will taper sunday into 
monday as 30.2 inch high pressure builds directly over the open 
waters.

persistent northerly winds will allow for continued lake effect 
precipitation through friday. expecting precip to gradually drift 
eastward tonight into friday. low level temperatures will be 
supportive for mainly rain, though some snow could mix in over the 
northern half of the lake. a few thunderstorms are possible, 
particularly over the southern half of the waters. can't rule out a 
waterspout in any deeper thunderstorms that manage to develop. will 
be monitoring for any possible special marine warnings or marine 
weather statements. anticipating that lake effect precip will 
dissipate by friday evening. 


lmz261-362-364-563-122215-
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 rock island passage to sturgeon bay wi-
821 am cst thu nov 12 2026

sturgeon bay wi to point betsie mi north...

.rest of today...northeast gales to 35 kt becoming north 15 to
25 kt. slight chance of waterspouts through mid morning. chance
of rain, sprinkles and flurries through mid morning, then chance
of rain this afternoon. waves 8 to 12 ft occasionally to 16 ft
subsiding to 6 to 9 ft occasionally to 12 ft. 
.tonight...north winds 15 to 25 kt. slight chance of waterspouts
in the evening, then chance of waterspouts overnight. chance of
rain and slight chance of snow in the evening, then chance of
rain and snow overnight. waves 5 to 8 ft occasionally to 10 ft. 
.friday...north winds 15 to 25 kt. chance of rain and snow in the
morning, then chance of rain in the afternoon. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.friday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. rain likely with a chance of snow in the evening, then
chance of rain overnight. waves 4 to 7 ft occasionally to 9 ft
subsiding to 4 to 6 ft occasionally to 8 ft. 
.saturday...north winds 10 to 20 kt. chance of rain. waves 3 to
5 ft. 
.saturday night...north winds 10 to 20 kt diminishing to 5 to
10 kt. waves 1 to 3 ft. 
.sunday...north winds 10 to 15 kt becoming northwest. waves 1 to
2 ft. 
.monday...southwest winds 10 to 20 kt. waves 1 to 2 ft building
to 1 to 3 ft.  

$$

fzus63 kmkx 121421
glflm 
expires:202611122215;;696285

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
821 am cst thu nov 12 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...

29.5 inch low pressure will advance into the northeastern united 
states today. progression of the low will support continued 
increases in northerly winds, with gusts exceeding gale force 
through this evening as 30.4 inch high pressure builds into the 
canadian great plains. a gale warning remains in effect until 9 pm
cst this evening over the southern two-thirds of the waters. 
northerly winds will remain steadily breezy---though below gale 
thresholds---through the day on friday as the aforementioned high
nudges east toward the hudson bay. winds will taper sunday into 
monday as 30.2 inch high pressure builds directly over the open 
waters.

persistent northerly winds will allow for continued lake effect 
precipitation through friday. expecting precip to gradually drift 
eastward tonight into friday. low level temperatures will be 
supportive for mainly rain, though some snow could mix in over the 
northern half of the lake. a few thunderstorms are possible, 
particularly over the southern half of the waters. can't rule out a 
waterspout in any deeper thunderstorms that manage to develop. will 
be monitoring for any possible special marine warnings or marine 
weather statements. anticipating that lake effect precip will 
dissipate by friday evening. 


lmz366-565-567-868-122215-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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-
821 am cst thu nov 12 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

...gale warning in effect through this evening...

.rest of today...north gales to 35 kt diminishing to 30 kt.
slight chance of waterspouts. rain likely through mid morning,
then chance of rain this afternoon. waves 12 to 16 ft
occasionally to 21 ft. 
.tonight...north winds to 30 kt. slight chance of waterspouts.
rain likely in the evening, then rain likely with a chance of
snow overnight. waves 8 to 11 ft occasionally to 14 ft subsiding
to 7 to 10 ft occasionally to 13 ft. 
.friday...north winds to 30 kt. chance of rain. waves 7 to 10 ft
occasionally to 13 ft. 
.friday night...north winds to 30 kt diminishing to 15 to 25 kt.
rain in the evening, then rain likely overnight. waves 6 to 9 ft
occasionally to 12 ft. 
.saturday...north winds 10 to 20 kt. rain likely in the morning,
then chance of rain in the afternoon. waves 4 to 7 ft
occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.saturday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. chance of rain. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.sunday...north winds 10 to 15 kt diminishing to 5 to 10 kt.
waves 1 to 3 ft. 
.monday...southwest winds 10 to 15 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 121421
glflm 
expires:202611122215;;696286

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
821 am cst thu nov 12 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...

29.5 inch low pressure will advance into the northeastern united 
states today. progression of the low will support continued 
increases in northerly winds, with gusts exceeding gale force 
through this evening as 30.4 inch high pressure builds into the 
canadian great plains. a gale warning remains in effect until 9 pm
cst this evening over the southern two-thirds of the waters. 
northerly winds will remain steadily breezy---though below gale 
thresholds---through the day on friday as the aforementioned high
nudges east toward the hudson bay. winds will taper sunday into 
monday as 30.2 inch high pressure builds directly over the open 
waters.

persistent northerly winds will allow for continued lake effect 
precipitation through friday. expecting precip to gradually drift 
eastward tonight into friday. low level temperatures will be 
supportive for mainly rain, though some snow could mix in over the 
northern half of the lake. a few thunderstorms are possible, 
particularly over the southern half of the waters. can't rule out a 
waterspout in any deeper thunderstorms that manage to develop. will 
be monitoring for any possible special marine warnings or marine 
weather statements. anticipating that lake effect precip will 
dissipate by friday evening. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-122215-
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-
821 am cst thu nov 12 2026

sheboygan wi to pentwater mi south...

...gale warning in effect through this evening...

.rest of today...north gales to 35 kt. slight chance of
waterspouts. rain likely. waves 14 to 18 ft occasionally to
23 ft. 
.tonight...north gales to 35 kt diminishing to 30 kt. slight
chance of waterspouts. chance of rain in the evening, then rain
likely overnight. waves 12 to 16 ft occasionally to 21 ft
subsiding to 8 to 12 ft occasionally to 16 ft. 
.friday...north winds to 30 kt. chance of waterspouts. chance of
rain. waves 10 to 14 ft occasionally to 18 ft. 
.friday night...north winds to 30 kt diminishing to 15 to 25 kt.
rain. waves 10 to 14 ft occasionally to 18 ft subsiding to 7 to
10 ft occasionally to 13 ft. 
.saturday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
rain likely in the morning, then chance of rain in the afternoon.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.saturday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. chance of rain. waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft. 
.sunday...north winds 10 to 15 kt diminishing to 5 to 10 kt.
waves 2 to 4 ft. 
.monday...southwest winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft.  

$$

fzus63 kmqt 121501
glfls 
expires:202611122100;;697236

open lake forecast for lake superior
national weather service marquette mi
1001 am est thu nov 12 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 29.5 inch low over delaware this morning deepens to 29.4 inches as 
it moves offshore near cape cod friday morning and then to 
newfoundland by saturday morning. meanwhile, 30.4 inch high pressure 
over northern manitoba gradually weakens to 30.3 inches over 
northwest ontario by friday and expands southward to the ozarks by 
saturday morning. high pressure slowly shifts eastward to the upper 
great lakes at 30.3 inches by saturday and encompasses much of the 
eastern conus while strengthening to 30.5 inches by monday. 





lsz162-122100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am est thu nov 12 2026 /901 am cst thu nov 12 2026/

.rest of today...north winds 20 to 30 knots diminishing to 10 to
20 knots by late morning, then increasing to 15 to 25 knots by
mid afternoon. waves 3 to 6 feet occasionally to 8 feet subsiding
to 2 to 4 feet. 
.tonight...north winds 15 to 25 knots. a slight chance of snow
showers in the evening. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...north winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to 1 to 3 feet. 
.friday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...north winds 5 to 15 knots veering northeast in the
afternoon. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots. waves building to 3 to
6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 121501
glfls 
expires:202611122100;;697237

open lake forecast for lake superior
national weather service marquette mi
1001 am est thu nov 12 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 29.5 inch low over delaware this morning deepens to 29.4 inches as 
it moves offshore near cape cod friday morning and then to 
newfoundland by saturday morning. meanwhile, 30.4 inch high pressure 
over northern manitoba gradually weakens to 30.3 inches over 
northwest ontario by friday and expands southward to the ozarks by 
saturday morning. high pressure slowly shifts eastward to the upper 
great lakes at 30.3 inches by saturday and encompasses much of the 
eastern conus while strengthening to 30.5 inches by monday. 





lsz263-122100-
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 am est thu nov 12 2026

.rest of today...north winds 15 to 25 knots. a chance of rain
showers late in the morning. a chance of snow showers. waves 4 to
7 feet occasionally to 9 feet subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tonight...north winds 15 to 25 knots increasing to 20 to
30 knots by midnight, then diminishing to 15 to 25 knots late. a
chance of snow showers. waves building to 4 to 7 feet
occasionally to 9 feet. 
.friday...north winds 15 to 25 knots diminishing to 10 to
20 knots. a slight chance of snow showers. a slight chance of
rain showers in the afternoon. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.friday night...north winds 10 to 20 knots. waves subsiding to
2 to 4 feet. 
.saturday...north winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.saturday night...north winds less than 10 knots backing
northwest after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 2 to 4 feet. 
.monday...southwest winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 121501
glfls 
expires:202611122100;;697238

open lake forecast for lake superior
national weather service marquette mi
1001 am est thu nov 12 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 29.5 inch low over delaware this morning deepens to 29.4 inches as 
it moves offshore near cape cod friday morning and then to 
newfoundland by saturday morning. meanwhile, 30.4 inch high pressure 
over northern manitoba gradually weakens to 30.3 inches over 
northwest ontario by friday and expands southward to the ozarks by 
saturday morning. high pressure slowly shifts eastward to the upper 
great lakes at 30.3 inches by saturday and encompasses much of the 
eastern conus while strengthening to 30.5 inches by monday. 





lsz264-122100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am est thu nov 12 2026

.rest of today...north winds 15 to 25 knots. a chance of snow
showers late in the morning, then snow showers likely in the
afternoon. waves 4 to 7 feet occasionally to 9 feet subsiding to
3 to 6 feet occasionally to 8 feet, then building to 4 to 7 feet
occasionally to 9 feet. 
.tonight...north winds 15 to 25 knots. a chance of snow showers.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday...north winds 15 to 25 knots. a slight chance of rain and
snow showers. waves 3 to 6 feet occasionally to 8 feet. 
.friday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday...north winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.saturday night...north winds 5 to 15 knots becoming northwest
less than 10 knots after midnight. waves calm to 2 feet. 
.sunday...west winds 5 to 15 knots backing southwest. waves
building to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots. waves building to 4 to
7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 121501
glfls 
expires:202611122100;;697239

open lake forecast for lake superior
national weather service marquette mi
1001 am est thu nov 12 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 29.5 inch low over delaware this morning deepens to 29.4 inches as 
it moves offshore near cape cod friday morning and then to 
newfoundland by saturday morning. meanwhile, 30.4 inch high pressure 
over northern manitoba gradually weakens to 30.3 inches over 
northwest ontario by friday and expands southward to the ozarks by 
saturday morning. high pressure slowly shifts eastward to the upper 
great lakes at 30.3 inches by saturday and encompasses much of the 
eastern conus while strengthening to 30.5 inches by monday. 





lsz265-122100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am est thu nov 12 2026

.rest of today...north winds 20 to 30 knots. sleet likely late in
the morning. rain and snow showers. waves 4 to 8 feet
occasionally to 10 feet, then building to 5 to 8 feet
occasionally to 10 feet. 
.tonight...north winds to 30 knots with a few gale force gusts to
35 knots possible diminishing to 20 to 30 knots by midnight. snow
showers likely in the evening. a slight chance of rain showers. a
chance of snow showers after midnight. waves building to 5 to
9 feet occasionally to 11 feet. 
.friday...north winds 20 to 30 knots. a chance of rain and snow
showers. waves 5 to 8 feet occasionally to 10 feet. 
.friday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. a slight chance of rain showers in the
evening. waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.saturday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves subsiding to 2 to 4 feet. 
.saturday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots backing southwest. waves
calm to 2 feet. 
.monday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 121501
glfls 
expires:202611122100;;697240

open lake forecast for lake superior
national weather service marquette mi
1001 am est thu nov 12 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 29.5 inch low over delaware this morning deepens to 29.4 inches as 
it moves offshore near cape cod friday morning and then to 
newfoundland by saturday morning. meanwhile, 30.4 inch high pressure 
over northern manitoba gradually weakens to 30.3 inches over 
northwest ontario by friday and expands southward to the ozarks by 
saturday morning. high pressure slowly shifts eastward to the upper 
great lakes at 30.3 inches by saturday and encompasses much of the 
eastern conus while strengthening to 30.5 inches by monday. 





lsz266-122100-
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 am est thu nov 12 2026

.rest of today...north winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible by mid
afternoon. a chance of snow showers, possibly mixed with rain and
sleet late in the morning, then snow showers likely with pockets
of rain showers in the afternoon. waves 4 to 8 feet occasionally
to 10 feet, then building to 5 to 8 feet occasionally to 10 feet.
.tonight...north winds to 30 knots with a few gale force gusts to
35 knots possible diminishing to 20 to 30 knots late. a chance of
snow showers, possibly mixed with rain. waves building to 5 to
9 feet occasionally to 11 feet. 
.friday...north winds 20 to 30 knots increasing to 30 knots with
a few gale force gusts to 35 knots possible by mid afternoon. a
chance of rain and snow showers. waves building to 6 to 9 feet
occasionally to 11 feet. 
.friday night...north winds 20 to 30 knots. a slight chance of
rain showers in the evening. waves subsiding to 5 to 8 feet
occasionally to 10 feet. 
.saturday...north winds 15 to 25 knots. a slight chance of rain
showers. waves subsiding to 2 to 4 feet. 
.saturday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots backing southwest. waves
calm to 2 feet. 
.monday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 121501
glfls 
expires:202611122100;;697241

open lake forecast for lake superior
national weather service marquette mi
1001 am est thu nov 12 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 29.5 inch low over delaware this morning deepens to 29.4 inches as 
it moves offshore near cape cod friday morning and then to 
newfoundland by saturday morning. meanwhile, 30.4 inch high pressure 
over northern manitoba gradually weakens to 30.3 inches over 
northwest ontario by friday and expands southward to the ozarks by 
saturday morning. high pressure slowly shifts eastward to the upper 
great lakes at 30.3 inches by saturday and encompasses much of the 
eastern conus while strengthening to 30.5 inches by monday. 





lsz267-122100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am est thu nov 12 2026

.rest of today...north winds 20 to 30 knots. a chance of snow
showers, possibly mixed with rain. sleet likely in the afternoon.
waves 4 to 7 feet occasionally to 9 feet subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tonight...north winds 20 to 30 knots. a chance of snow showers,
possibly mixed with rain. waves building to 4 to 7 feet
occasionally to 9 feet. 
.friday...north winds 20 to 30 knots. a chance of rain and snow
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet,
then building to 4 to 7 feet occasionally to 9 feet. 
.friday night...north winds 20 to 30 knots. a slight chance of
rain showers in the evening. waves 4 to 7 feet occasionally to
9 feet. 
.saturday...north winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.saturday night...north winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.sunday...north winds 5 to 15 knots backing southwest. waves calm
to 2 feet. 
.monday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 2 to 4 feet. 

$$