fzus61 kbuf 310902
glflo 
expires:202601311600;;841083

open lake forecast for lake ontario
national weather service buffalo ny
402 am est sat jan 31 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.9 inch high over the upper midwest will build 
southward across the plains states through saturday, before 
weakening to 30.4 inches and settling across the gulf coast states 
on sunday. the northeastern portion of this ridge will slide across 
the central and eastern great lakes sunday and monday, with a 
weakening 30.0 inch trough sliding across the lake tuesday. a 30.6 
inch high from central canada will move into the upper midwest 
wednesday.


loz063>065-311600-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am est sat jan 31 2026

.today...north winds 5 to 10 knots. lake effect snow showers
likely early, then a chance of snow showers late this morning. a
chance of snow showers and freezing rain this afternoon. waves
2 feet or less. 
.tonight...north winds 5 to 15 knots. a chance of snow showers
early. waves 2 feet or less. 
.sunday...north winds 10 to 15 knots becoming northwest. waves
1 to 3 feet. 
.sunday night...northwest winds 10 to 15 knots. waves 1 to
3 feet. 
.monday...northwest winds 10 to 15 knots becoming southwest.
waves 1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.tuesday...southwest winds 5 to 15 knots becoming northwest. a
chance of snow showers. waves 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots. a chance of snow
showers during the day. waves 2 feet or less. 

$$

fzus61 kbuf 310902
glflo 
expires:202601311600;;841082

open lake forecast for lake ontario
national weather service buffalo ny
402 am est sat jan 31 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.9 inch high over the upper midwest will build 
southward across the plains states through saturday, before 
weakening to 30.4 inches and settling across the gulf coast states 
on sunday. the northeastern portion of this ridge will slide across 
the central and eastern great lakes sunday and monday, with a 
weakening 30.0 inch trough sliding across the lake tuesday. a 30.6 
inch high from central canada will move into the upper midwest 
wednesday.


loz062-311600-
lake ontario open waters from the niagara river to hamlin beach-
402 am est sat jan 31 2026

.today...north winds 5 to 10 knots becoming northwest. lake
effect snow showers likely early, then a chance of snow showers
from late morning on. waves 1 to 2 feet. 
.tonight...north winds 10 to 15 knots. a chance of snow showers
early. waves 1 to 2 feet. 
.sunday...north winds 10 to 15 knots becoming northwest. waves
1 to 2 feet. 
.sunday night...northwest winds 10 to 15 knots. waves 1 to
3 feet. 
.monday...west winds 10 to 15 knots becoming southwest. waves
1 to 3 feet. 
.tuesday...west winds 10 to 15 knots becoming northwest. a chance
of snow showers. waves 2 to 3 feet. 
.wednesday...northwest winds 10 to 15 knots. waves 1 to 2 feet. 

$$

fzus61 kcle 310739
glfle 
expires:202601311515;;837757

open lake forecast for lake erie
national weather service cleveland oh
239 am est sat jan 31 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...
a high pressure ridge averaging 30.40 inches builds from the 
north-central united states and vicinity through sunday.
the ridge begins to exit eastward sunday night before a very weak 
cold front drifts eastward across lake erie monday night through 
tuesday. behind the front, another ridge averaging 30.40 inches 
should build from the north-central united states through
wednesday.


lez162>164-311515-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
239 am est sat jan 31 2026

.today...northwest winds 5 to 10 knots becoming north. a slight
chance of snow showers this afternoon. the lake is mostly ice
covered.
.tonight...north winds around 10 knots becoming northwest. a
slight chance of snow showers early. 
.sunday...northwest winds 5 to 10 knots becoming west. 
.sunday night...southwest winds around 10 knots. 
.monday...southwest winds 10 to 15 knots becoming west. 
.tuesday...west winds 5 to 10 knots becoming north. 
.wednesday...north winds 5 to 10 knots becoming northwest. 

waves omitted due to the lake being mostly ice covered.

$$

fzus61 kcle 310739
glfle 
expires:202601311515;;837758

open lake forecast for lake erie
national weather service cleveland oh
239 am est sat jan 31 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...
a high pressure ridge averaging 30.40 inches builds from the 
north-central united states and vicinity through sunday.
the ridge begins to exit eastward sunday night before a very weak 
cold front drifts eastward across lake erie monday night through 
tuesday. behind the front, another ridge averaging 30.40 inches 
should build from the north-central united states through
wednesday.


lez061-165>169-311515-
ripley to buffalo ny extending from 5nm 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-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-
239 am est sat jan 31 2026

.today...northwest winds 5 to 10 knots becoming north. a slight
chance of snow showers this afternoon. the lake is mostly ice
covered.
.tonight...northwest winds 5 to 10 knots becoming north. a slight
chance of snow showers early. 
.sunday...northwest winds 5 to 10 knots becoming west. 
.sunday night...west winds 5 to 10 knots becoming southwest. 
.monday...southwest winds 10 to 15 knots becoming west. 
.tuesday...west winds 5 to 10 knots becoming northwest. 
.wednesday...north winds 5 to 10 knots becoming northwest. 

waves omitted due to the lake being mostly ice covered.

$$

fzus63 kdtx 310833
glflh 
expires:202601311645;;839900

open lake forecast for lake huron
national weather service detroit/pontiac mi
333 am est sat jan 31 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...surface trough holding across the great lakes
maintains moderate north-northeast winds today. northern edge of
plains high pressure, 30.60 inches, expands over the region
tonight bringing lighter winds for the remainder of the weekend.
a weak clipper, 30.00 inches, slides over the region later monday
before high pressure returns for the midweek.


lhz463-464-311645-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
333 am est sat jan 31 2026

.today...north winds 10 to 20 knots. snow showers in the 
morning...then scattered snow showers in the afternoon. 
.tonight...north winds 10 to 15 knots decreasing to 5 to 10 knots
after midnight. 
.sunday...north winds 5 to 10 knots backing to the northwest
early in the afternoon. 
.sunday night...southwest winds 5 to 10 knots. 
.monday...southwest winds 10 to 15 knots. 
.tuesday...west winds 10 to 15 knots becoming northwest 5 to
10 knots early in the evening...then increasing to 10 to 15 knots
by midnight. 
.wednesday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots. 

waves omitted due to ice coverage.

$$

fzus63 kdtx 310833
glflh 
expires:202601311645;;839898

open lake forecast for lake huron
national weather service detroit/pontiac mi
333 am est sat jan 31 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...surface trough holding across the great lakes
maintains moderate north-northeast winds today. northern edge of
plains high pressure, 30.60 inches, expands over the region
tonight bringing lighter winds for the remainder of the weekend.
a weak clipper, 30.00 inches, slides over the region later monday
before high pressure returns for the midweek.


lhz361-311645-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
333 am est sat jan 31 2026

.today...north winds 10 to 15 knots decreasing to 5 to 10 knots
in the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet in
the late morning and afternoon. 
.tonight...northwest winds 5 to 10 knots. waves 2 feet or less. 
.sunday...light and variable winds. waves 2 feet or less. 
.sunday night...south winds 5 to 10 knots. waves 2 feet or less. 
.monday...southwest winds 10 to 15 knots veering to the west late
in the afternoon. a chance of snow in the morning. waves 1 to
3 feet. 
.tuesday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots by midnight. waves 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots backing to the west .
waves 2 feet or less. 


$$

fzus63 kdtx 310833
glfsc 
expires:202601311645;;839895

lake st clair forecast
national weather service detroit/pontiac mi
333 am est sat jan 31 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...surface trough holding across the great lakes
maintains moderate north-northeast winds today. northern edge of
plains high pressure, 30.60 inches, expands over the region
tonight bringing lighter winds for the remainder of the weekend.
a weak clipper, 30.00 inches, slides over the region later monday
before high pressure returns for the midweek.


lcz460-311645-
lake st clair-
333 am est sat jan 31 2026

.today...north winds 5 to 10 knots increasing to 10 to 15 knots 
in the afternoon. mostly cloudy.
.tonight...north winds 10 to 15 knots becoming northwest 5 to 10
knots after midnight. partly cloudy.
.sunday...northwest winds 5 to 10 knots. mostly sunny.
.sunday night...southwest winds 5 to 10 knots. mostly clear.
.monday...southwest winds 10 to 15 knots. mostly cloudy. a chance of
light snow.
.tuesday...northwest winds 5 to 10 knots. partly cloudy.
.wednesday...northwest winds 5 to 10 knots. partly cloudy.

waves omitted due to ice coverage.

$$

fzus63 kdtx 310833
glflh 
expires:202601311645;;839899

open lake forecast for lake huron
national weather service detroit/pontiac mi
333 am est sat jan 31 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...surface trough holding across the great lakes
maintains moderate north-northeast winds today. northern edge of
plains high pressure, 30.60 inches, expands over the region
tonight bringing lighter winds for the remainder of the weekend.
a weak clipper, 30.00 inches, slides over the region later monday
before high pressure returns for the midweek.


lhz362-363-462-311645-
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-
lake huron from port austin to harbor beach beyond 5nm off shore-
333 am est sat jan 31 2026

.today...north winds 10 to 20 knots. scattered snow showers. 
waves 3 to 5 feet. 
.tonight...north winds 10 to 15 knots decreasing to 5 to 10 knots
early in the morning. waves 3 to 5 feet subsiding to 2 to 4 feet
early in the morning. 
.sunday...north winds 5 to 10 knots backing to the southwest
early in the afternoon. waves 1 to 3 feet. 
.sunday night...southwest winds 5 to 10 knots increasing to 10 to
15 knots after midnight. waves 2 feet or less. 
.monday...southwest winds 10 to 15 knots veering to the west late
in the evening. waves 2 to 4 feet. 
.tuesday...northwest winds 10 to 15 knots. waves 2 to 4 feet. 
.wednesday...north winds 10 to 15 knots becoming northwest 5 to
10 knots . waves 1 to 3 feet. 

wave heights are for ice free areas.

$$

fzus63 kmkx 310834
glflm 
expires:202601311615;;839932

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
234 am cst sat jan 31 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...

lake effect snow showers, brisk north winds, and moderate freezing
spray will prevail today, mainly across the southern half of the 
lake. strong high pressure of 30.8 inches will settle over the 
southern great plains today. a ridge extending north from the 
high will then shift across the lake tonight, with light and 
variable winds expected. modest southwest winds will develop for 
sunday into sunday night as a trough of low pressure approaches 
from the west. the trough will then pass and shift the winds to 
northwesterly for monday.


lmz261-362-364-366-563-565-567-868-311615-
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-
234 am cst sat jan 31 2026

sheboygan wi to pentwater mi north...

.today...north winds 15 to 25 kt diminishing to 10 to 20 kt.
freezing spray this morning. waves 5 to 8 ft occasionally to
10 ft subsiding to 3 to 5 ft. 
.tonight...north winds 10 to 15 kt backing to southwest. waves
2 to 4 ft subsiding to 1 ft or less. 
.sunday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 4 to 6 ft occasionally to 8 ft. 
.sunday night...southwest winds 10 to 20 kt. chance of snow.
waves 4 to 6 ft occasionally to 8 ft. 
.monday...west winds 10 to 20 kt becoming northwest. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.monday night...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday...north winds 10 to 15 kt. waves 2 to 4 ft. 
.wednesday...north winds 10 to 15 kt becoming northwest 5 to
10 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 310834
glflm 
expires:202601311615;;839933

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
234 am cst sat jan 31 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...

lake effect snow showers, brisk north winds, and moderate freezing
spray will prevail today, mainly across the southern half of the 
lake. strong high pressure of 30.8 inches will settle over the 
southern great plains today. a ridge extending north from the 
high will then shift across the lake tonight, with light and 
variable winds expected. modest southwest winds will develop for 
sunday into sunday night as a trough of low pressure approaches 
from the west. the trough will then pass and shift the winds to 
northwesterly for monday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-311615-
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-
234 am cst sat jan 31 2026

sheboygan wi to pentwater mi south...

.today...north winds 15 to 25 kt diminishing to 10 to 20 kt.
freezing spray this morning. scattered snow showers. waves 6 to
9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.tonight...north winds 10 to 20 kt becoming northeast 5 to 10 kt
after midnight, then backing to southwest late. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.sunday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.sunday night...southwest winds 10 to 20 kt. chance of snow.
waves 4 to 6 ft occasionally to 8 ft. 
.monday...west winds 10 to 20 kt becoming northwest. waves 4 to
6 ft occasionally to 8 ft. 
.monday night...northwest winds 10 to 15 kt. waves 2 to 4 ft. 
.tuesday...north winds 10 to 15 kt. waves 2 to 4 ft. 
.wednesday...north winds 10 to 15 kt. waves 2 to 4 ft.  

$$

fzus63 kmqt 310900
glfls 
expires:202601312100;;840869

open lake forecast for lake superior
national weather service marquette mi
400 am est sat jan 31 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...

high pressure of 30.8 inches sags south over the great plains today, 
maintaining 30.6 inch ridging over lake superior through this 
evening. ridging breaks down tonight into sunday as a 29.8 inch low 
moves out of manitoba. this will cross lake superior as a 30.0 inch 
trough sunday night. the trough will further weaken to 30.1 inches 
over georgian bay on monday as a 30.4 inch high moves over northwest 
ontario. this high builds to 30.5 inches on tuesday as it settles 
over the upper mississippi river valley through wednesday.



lsz267-312100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am est sat jan 31 2026

.early this morning...north winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.today...north winds 10 to 20 knots becoming northwest 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.tonight...west winds 5 to 15 knots backing south late. waves
building to 1 to 3 feet. 
.sunday...south winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. waves building to 3 to 5 feet occasionally to
7 feet. 
.sunday night...south winds 15 to 25 knots veering southwest
after midnight. a chance of snow showers in the evening, then
snow showers likely after midnight. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots veering northwest in the
afternoon. snow showers likely in the morning, then a chance of
snow showers in the afternoon. freezing spray in the afternoon.
waves building to 4 to 7 feet occasionally to 9 feet. 
.monday night...northwest winds 15 to 25 knots veering north
after midnight. freezing spray in the evening. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.tuesday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 310900
glfls 
expires:202601312100;;840864

open lake forecast for lake superior
national weather service marquette mi
400 am est sat jan 31 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...

high pressure of 30.8 inches sags south over the great plains today, 
maintaining 30.6 inch ridging over lake superior through this 
evening. ridging breaks down tonight into sunday as a 29.8 inch low 
moves out of manitoba. this will cross lake superior as a 30.0 inch 
trough sunday night. the trough will further weaken to 30.1 inches 
over georgian bay on monday as a 30.4 inch high moves over northwest 
ontario. this high builds to 30.5 inches on tuesday as it settles 
over the upper mississippi river valley through wednesday.



lsz162-312100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est sat jan 31 2026 /300 am cst sat jan 31 2026/

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots backing southwest. waves calm
to 2 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots by midnight, then backing south late. a slight chance of
snow showers after midnight. waves building to 2 to 4 feet. 
.sunday...south winds 15 to 25 knots veering southwest by late
morning, then diminishing to 10 to 20 knots by mid afternoon. a
chance of snow showers in the morning, then snow showers likely
in the afternoon. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.sunday night...west winds 10 to 20 knots veering northwest after
midnight. a slight chance of snow showers in the evening. waves
subsiding to calm to 2 feet. 
.monday...northwest winds 10 to 20 knots. waves calm to 2 feet. 
.monday night...north winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 
.wednesday...west winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 310900
glfls 
expires:202601312100;;840865

open lake forecast for lake superior
national weather service marquette mi
400 am est sat jan 31 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...

high pressure of 30.8 inches sags south over the great plains today, 
maintaining 30.6 inch ridging over lake superior through this 
evening. ridging breaks down tonight into sunday as a 29.8 inch low 
moves out of manitoba. this will cross lake superior as a 30.0 inch 
trough sunday night. the trough will further weaken to 30.1 inches 
over georgian bay on monday as a 30.4 inch high moves over northwest 
ontario. this high builds to 30.5 inches on tuesday as it settles 
over the upper mississippi river valley through wednesday.



lsz263-312100-
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-
400 am est sat jan 31 2026

.early this morning...north winds 5 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.today...northwest winds 5 to 15 knots backing southwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots increasing to 10 to
20 knots by midnight, then backing south late. waves building to
2 to 4 feet. 
.sunday...south winds 10 to 20 knots becoming southwest 15 to
25 knots by late morning, then diminishing to 10 to 20 knots by
mid afternoon. a chance of snow showers. waves building to 3 to
5 feet occasionally to 7 feet. 
.sunday night...west winds 10 to 20 knots veering northwest after
midnight. a slight chance of snow showers. waves subsiding to
2 to 4 feet. 
.monday...northwest winds 10 to 20 knots. waves subsiding to 1 to
3 feet. 
.monday night...north winds 10 to 20 knots. waves 1 to 3 feet. 
.tuesday...north winds 5 to 15 knots backing northwest. waves
subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 310900
glfls 
expires:202601312100;;840866

open lake forecast for lake superior
national weather service marquette mi
400 am est sat jan 31 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...

high pressure of 30.8 inches sags south over the great plains today, 
maintaining 30.6 inch ridging over lake superior through this 
evening. ridging breaks down tonight into sunday as a 29.8 inch low 
moves out of manitoba. this will cross lake superior as a 30.0 inch 
trough sunday night. the trough will further weaken to 30.1 inches 
over georgian bay on monday as a 30.4 inch high moves over northwest 
ontario. this high builds to 30.5 inches on tuesday as it settles 
over the upper mississippi river valley through wednesday.



lsz264-312100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am est sat jan 31 2026

.early this morning...north winds 5 to 15 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.today...north winds 5 to 15 knots backing west by late morning,
then backing southwest by mid afternoon. waves subsiding to calm
to 2 feet. 
.tonight...southwest winds 5 to 15 knots becoming south 10 to
20 knots by midnight. waves building to 2 to 4 feet. 
.sunday...south winds 10 to 20 knots increasing to 15 to 25 knots
by late morning, then becoming southwest 10 to 20 knots by mid
afternoon. a slight chance of snow showers in the afternoon.
waves building to 3 to 5 feet occasionally to 7 feet. 
.sunday night...west winds 10 to 20 knots veering northwest after
midnight. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.monday...northwest winds 15 to 25 knots. freezing spray in the
morning. waves building to 3 to 6 feet occasionally to 8 feet. 
.monday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to 2 to 4 feet. 
.tuesday...north winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.wednesday...west winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 310900
glfls 
expires:202601312100;;840867

open lake forecast for lake superior
national weather service marquette mi
400 am est sat jan 31 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...

high pressure of 30.8 inches sags south over the great plains today, 
maintaining 30.6 inch ridging over lake superior through this 
evening. ridging breaks down tonight into sunday as a 29.8 inch low 
moves out of manitoba. this will cross lake superior as a 30.0 inch 
trough sunday night. the trough will further weaken to 30.1 inches 
over georgian bay on monday as a 30.4 inch high moves over northwest 
ontario. this high builds to 30.5 inches on tuesday as it settles 
over the upper mississippi river valley through wednesday.



lsz265-312100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am est sat jan 31 2026

.early this morning...north winds 10 to 20 knots. isolated snow
showers. waves 3 to 6 feet occasionally to 8 feet. 
.today...northwest winds 10 to 20 knots backing west by late
morning, then diminishing to 5 to 15 knots by mid afternoon.
waves subsiding to calm to 2 feet. 
.tonight...south winds 5 to 15 knots increasing to 10 to 20 knots
by midnight. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 2 to 4 feet. 
.sunday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a chance of snow showers. waves
subsiding to calm to 2 feet. 
.monday...northwest winds 20 to 30 knots. waves building to 3 to
5 feet occasionally to 7 feet. 
.monday night...northwest winds 15 to 25 knots. waves subsiding
to 2 to 4 feet. 
.tuesday...north winds 10 to 20 knots backing northwest. waves
subsiding to calm to 2 feet. 
.wednesday...west winds 10 to 20 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 310900
glfls 
expires:202601312100;;840868

open lake forecast for lake superior
national weather service marquette mi
400 am est sat jan 31 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...

high pressure of 30.8 inches sags south over the great plains today, 
maintaining 30.6 inch ridging over lake superior through this 
evening. ridging breaks down tonight into sunday as a 29.8 inch low 
moves out of manitoba. this will cross lake superior as a 30.0 inch 
trough sunday night. the trough will further weaken to 30.1 inches 
over georgian bay on monday as a 30.4 inch high moves over northwest 
ontario. this high builds to 30.5 inches on tuesday as it settles 
over the upper mississippi river valley through wednesday.



lsz266-312100-
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-
400 am est sat jan 31 2026

.early this morning...north winds 15 to 25 knots. freezing spray.
isolated snow showers. waves 4 to 7 feet occasionally to 9 feet
subsiding to 3 to 6 feet occasionally to 8 feet. 
.today...north winds 10 to 20 knots becoming northwest 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots becoming south 10 to
20 knots by midnight. waves building to 2 to 4 feet. 
.sunday...south winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 4 to 7 feet occasionally to 9 feet. 
.sunday night...southwest winds 15 to 25 knots veering west after
midnight. a chance of snow showers. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.monday...northwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. freezing spray. a chance of snow
showers. waves building to 4 to 7 feet occasionally to 9 feet. 
.monday night...northwest winds 20 to 30 knots becoming north
15 to 25 knots after midnight. freezing spray in the evening.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...north winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.wednesday...west winds 10 to 20 knots. waves building to 2 to
4 feet. 

note, wave height forecasts are for ice free areas.

$$