fzus61 kbuf 050902
glflo 
expires:202601051600;;818556

open lake forecast for lake ontario
national weather service buffalo ny
402 am est mon jan 5 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 30.2 inch high across the lower great lakes early this 
morning, will drift off the east coast monday night. a weak 29.6 
inch low will then cross the lower great lakes tuesday night before 
moving off the new england coast wednesday. a 30.1 inch high will 
then proceed to build from the ohio valley wednesday to the mid 
atlantic thursday. a 29.9 inch low will cross the ohio valley 
towards the lower great lakes friday.


loz063>065-051600-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am est mon jan 5 2026

.today...southeast winds 10 to 15 knots. snow. waves 2 feet or
less. 
.tonight...south winds 5 to 15 knots becoming east. a chance of
snow early. waves 2 feet or less. 
.tuesday...east winds 5 to 15 knots becoming southeast. rain in
the afternoon. waves 2 feet or less. 
.tuesday night...southeast winds 10 to 15 knots becoming west
15 to 20 knots. rain. waves 1 to 3 feet building to 3 to 5 feet. 
.wednesday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. rain showers with a chance of snow showers during the
day. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.thursday...southwest winds 5 to 15 knots becoming south 15 to
20 knots. rain showers likely thursday night. waves 1 to 3 feet
building to 2 to 4 feet. 
.friday...south winds 15 to 20 knots becoming southeast. rain
showers likely. waves 1 to 3 feet building to 2 to 4 feet. 

$$

fzus61 kbuf 050902
glflo 
expires:202601051600;;818555

open lake forecast for lake ontario
national weather service buffalo ny
402 am est mon jan 5 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 30.2 inch high across the lower great lakes early this 
morning, will drift off the east coast monday night. a weak 29.6 
inch low will then cross the lower great lakes tuesday night before 
moving off the new england coast wednesday. a 30.1 inch high will 
then proceed to build from the ohio valley wednesday to the mid 
atlantic thursday. a 29.9 inch low will cross the ohio valley 
towards the lower great lakes friday.


loz062-051600-
lake ontario open waters from the niagara river to hamlin beach-
402 am est mon jan 5 2026

.today...southeast winds 5 to 15 knots. snow through early
afternoon. waves 2 feet or less. 
.tonight...south winds 5 to 10 knots. waves 1 foot or less. 
.tuesday...southeast winds 5 to 15 knots becoming east. a chance
of rain showers in the morning, then rain in the afternoon. waves
2 feet or less. 
.tuesday night...southeast winds 10 to 15 knots becoming west
15 to 20 knots. rain. waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. rain showers likely during the day. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.thursday...southwest winds 5 to 10 knots becoming south. rain
showers likely thursday night. waves 1 to 2 feet. 
.friday...south winds 10 to 15 knots becoming east 15 to
20 knots. showers likely. waves 1 to 3 feet building to 2 to
4 feet. 

$$

fzus61 kcle 050805
glfle 
expires:202601051530;;816326

open lake forecast for lake erie
national weather service cleveland oh
305 am est mon jan 5 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 of 29.80 inches over the upper great lakes today will
lift a warm front north across lake erie today. another low 
pressure system of 29.50 inches will pass just north of lake erie
tuesday evening, pulling a cold front east across the area. high 
pressure of 30.00 inches will build east across the ohio valley on
wednesday. low pressure tracking out of the southern plains will 
deepen to 29.50 inches as it approaches lake michigan on friday. 


lez162>165-051530-
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-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
305 am est mon jan 5 2026

.today...south winds 15 to 20 knots becoming southwest 10 to
15 knots. the lake is mostly ice covered.
.tonight...southwest winds 5 to 10 knots becoming south. 
.tuesday...southeast winds 10 to 15 knots becoming southwest
15 to 20 knots. rain.
.tuesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. rain in the evening. 
.wednesday...west winds 5 to 15 knots becoming south. 
.thursday...south winds 10 to 15 knots. a chance of rain during
the day, then rain thursday night. 
.friday...south winds 15 to 20 knots becoming southwest. rain
likely. 

waves omitted due to the lake being mostly ice covered.

$$

fzus61 kcle 050805
glfle 
expires:202601051530;;816327

open lake forecast for lake erie
national weather service cleveland oh
305 am est mon jan 5 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 of 29.80 inches over the upper great lakes today will
lift a warm front north across lake erie today. another low 
pressure system of 29.50 inches will pass just north of lake erie
tuesday evening, pulling a cold front east across the area. high 
pressure of 30.00 inches will build east across the ohio valley on
wednesday. low pressure tracking out of the southern plains will 
deepen to 29.50 inches as it approaches lake michigan on friday. 


lez061-166>169-051530-
ripley to buffalo ny extending from 5nm 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-
305 am est mon jan 5 2026

.today...south winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of snow early. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.tonight...west winds 5 to 15 knots becoming south. waves 1 to
3 feet. 
.tuesday...south winds 10 to 15 knots increasing to 15 to
20 knots. rain. waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west.
rain in the evening, then a chance of rain overnight. waves 3 to
5 feet. 
.wednesday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...south winds 10 to 15 knots. a chance of rain during
the day, then rain likely thursday night. waves 1 to 3 feet. 
.friday...south winds 15 to 20 knots becoming southwest. rain
likely. waves 1 to 3 feet building to 3 to 5 feet. 

$$

fzus63 kdtx 050858
glfsc 
expires:202601051700;;818208

lake st clair forecast
national weather service detroit/pontiac mi
358 am est mon jan 5 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...weak low pressure, 29.80 inches, and the leading
pattern of snow exit northern lake huron this morning. it leaves
behind diffuse high pressure and light marine wind until the next
low pressure system moves through the southern great lake
tuesday. this system brings a mix of light precipitation but
still light marine wind. it is followed by high pressure and
favorable conditions for the mid week period.


lcz460-051700-
lake st clair-
358 am est mon jan 5 2026

.today...south winds 10 to 15 knots becoming southwest 5 to 10 knots
in the afternoon. mostly cloudy.
.tonight...southwest winds 5 to 10 knots this evening becoming light
and variable...then becoming south 5 to 10 knots early in the
morning. mostly cloudy.
.tuesday...southeast winds 5 to 10 knots becoming southwest 10 to 15
knots early in the afternoon. light rain and a chance of light
freezing rain early in the morning...then light rain in the late
morning and afternoon.
.tuesday night...west winds 10 to 15 knots. mostly cloudy.
.wednesday...southwest winds 5 to 10 knots. mostly cloudy becoming
partly cloudy.
.thursday...south winds 10 to 15 knots. partly cloudy. light rain
likely.
.friday...east winds 10 to 15 knots. mostly cloudy with light rain
likely.

waves omitted due to ice coverage.

$$

fzus63 kdtx 050857
glflh 
expires:202601051700;;818138

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 am est mon jan 5 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...weak low pressure, 29.80 inches, and the leading
pattern of snow exit northern lake huron this morning. it leaves
behind diffuse high pressure and light marine wind until the next
low pressure system moves through the southern great lake
tuesday. this system brings a mix of light precipitation but
still light marine wind. it is followed by high pressure and
favorable conditions for the mid week period.


lhz363-462>464-051700-
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-
357 am est mon jan 5 2026

.today...south winds 15 to 20 knots becoming southwest 5 to
10 knots. a chance of snow in the morning. waves 3 to 5 feet. 
.tonight...south winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...south winds 5 to 10 knots becoming southeast 10 to
15 knots in the late morning and early afternoon...then
decreasing to 5 to 10 knots early in the afternoon. a chance of
rain in the morning...then rain in the afternoon. waves 1 to
3 feet. 
.tuesday night...north winds 5 to 10 knots becoming northwest
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet. 
.wednesday...west winds 10 to 15 knots backing to the southwest
late in the evening. waves 1 to 3 feet. 
.thursday...south winds 10 to 15 knots. a chance of rain . waves
2 to 4 feet. 
.friday...northeast winds 10 to 15 knots increasing to 15 to
20 knots. a chance of rain...then rain likely by midnight. waves
2 to 4 feet building to 3 to 5 feet. 


$$

fzus63 kdtx 050857
glflh 
expires:202601051700;;818137

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 am est mon jan 5 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...weak low pressure, 29.80 inches, and the leading
pattern of snow exit northern lake huron this morning. it leaves
behind diffuse high pressure and light marine wind until the next
low pressure system moves through the southern great lake
tuesday. this system brings a mix of light precipitation but
still light marine wind. it is followed by high pressure and
favorable conditions for the mid week period.


lhz361-362-051700-
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-
357 am est mon jan 5 2026

.today...south winds 10 to 15 knots becoming southwest 5 to
10 knots in the afternoon. a chance of snow. waves 3 to 5 feet. 
.tonight...south winds 5 to 10 knots. waves 1 to 3 feet. 
.tuesday...south winds 5 to 10 knots backing to the southeast
early in the afternoon. a chance of rain and snow in the
morning...then rain likely and a chance of snow in the afternoon.
waves 1 to 3 feet. 
.tuesday night...north winds 5 to 10 knots becoming northwest
10 to 15 knots after midnight. waves 1 to 3 feet. 
.wednesday...west winds 10 to 15 knots backing to the southwest
late in the afternoon. waves 1 to 3 feet. 
.thursday...south winds 10 to 15 knots becoming southwest 5 to
10 knots by midnight. a chance of rain . waves 2 to 4 feet. 
.friday...north winds 10 to 15 knots becoming northeast 15 to
20 knots . a chance of rain. a chance of snow . waves 2 to 4 feet
building to 3 to 5 feet. 


$$

fzus63 kmkx 050904
glflm 
expires:202601051630;;818630

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
304 am cst mon jan 5 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...

winds will veer westerly today as high pressure of 29.8 inches
crosses the upper great lakes. southerly winds will become 
established tonight ahead of a new area of 29.6 inch low pressure 
forming in the northern great plains. the low will cross lake 
michigan tuesday morning, resulting in a west-northwest wind shift
by the afternoon hours. 

west to southwest winds will prevail through wednesday afternoon,
turning southerly wednesday night into thursday. look for
increasing northeast winds by friday morning as low pressure
around 29.5 inches crosses the southern tip of lake michigan. one
more low is expected to deepen over lower michigan on saturday.
the strength on the low is uncertain, but gusty northwest winds 
are possible on the back side saturday afternoon and night. 


lmz261-362-364-366-563-565-567-868-051630-
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-
304 am cst mon jan 5 2026

sheboygan wi to pentwater mi north...

.today...west winds 10 to 20 kt becoming northwest 10 to 15 kt
late this morning, then diminishing to 5 to 10 kt early this
afternoon and becoming west late. slight chance of light freezing
drizzle this morning. waves 5 to 8 ft occasionally to 10 ft
subsiding to 3 to 5 ft. 
.tonight...south winds less than 10 kt increasing to 5 to 10 kt
late in the evening, then becoming southeast 10 to 15 kt late. 
slight chance of rain overnight. waves 1 to 3 ft subsiding to 1 to
2 ft. 
.tuesday...east winds 10 to 15 kt backing to northwest. rain
likely, chance of light freezing rain and snow in the morning,
then chance of rain and snow in the afternoon. waves 1 to 2 ft.
.tuesday night...northwest winds 10 to 15 kt becoming west. waves
1 to 3 ft. 
.wednesday...west winds 10 to 20 kt becoming southwest. waves
2 to 4 ft. 
.wednesday night...southwest winds 10 to 20 kt becoming south.
waves 2 to 4 ft. 
.thursday...southwest winds 10 to 20 kt. waves 2 to 4 ft. 
.friday...northeast winds 10 to 20 kt. chance of rain. waves 3 to
5 ft.  

$$

fzus63 kmkx 050904
glflm 
expires:202601051630;;818631

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
304 am cst mon jan 5 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...

winds will veer westerly today as high pressure of 29.8 inches
crosses the upper great lakes. southerly winds will become 
established tonight ahead of a new area of 29.6 inch low pressure 
forming in the northern great plains. the low will cross lake 
michigan tuesday morning, resulting in a west-northwest wind shift
by the afternoon hours. 

west to southwest winds will prevail through wednesday afternoon,
turning southerly wednesday night into thursday. look for
increasing northeast winds by friday morning as low pressure
around 29.5 inches crosses the southern tip of lake michigan. one
more low is expected to deepen over lower michigan on saturday.
the strength on the low is uncertain, but gusty northwest winds 
are possible on the back side saturday afternoon and night. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-051630-
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-
304 am cst mon jan 5 2026

sheboygan wi to pentwater mi south...

.today...southwest winds 15 to 25 kt diminishing to 10 to 15 kt 
early this afternoon. waves 5 to 8 ft occasionally to 10 ft 
subsiding to 2 to 4 ft. 
.tonight...south winds 5 to 10 kt becoming southeast after
midnight, then increasing to 10 to 15 kt late. patchy fog
overnight. chance of rain overnight. waves 1 to 3 ft subsiding to
1 to 2 ft. 
.tuesday...southeast winds 10 to 15 kt backing to northwest 10 to
20 kt. patchy fog in the morning. rain in the morning. waves 2 to
4 ft. 
.tuesday night...west winds 10 to 15 kt. waves 2 to 4 ft. 
.wednesday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft. 
.wednesday night...south winds 10 to 20 kt. waves 3 to 5 ft.
.thursday...south winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 3 to 5 ft. 
.friday...northeast winds 10 to 20 kt. rain likely. waves 3 to
5 ft.  

$$

fzus63 kmqt 050901
glfls 
expires:202601052100;;818347

open lake forecast for lake superior
national weather service marquette mi
400 am est mon jan 5 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...

today, 29.8 inch low pressure moves over lake superior while a 29.6 
inch low develops over the centralo plains. the plains low then 
moves to southern lake michigan tuesday, then southern ontario 
tuesday evening as it deepens to 29.5 inches. ridging of around 29.8 
inches then moves over lake superior on wednesday ahead of a 29.5 
inch low arriving over northern ontario thursday morning. this low 
brings a trough across the lake thursday before lifting to james bay 
late thursday. meanwhile, a colorado low of around 29.6 inches will 
quickly approach the upper great lakes by friday morning, moving 
into ontario by late friday to early saturday.



lsz266-052100-
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 mon jan 5 2026

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 050901
glfls 
expires:202601052100;;818348

open lake forecast for lake superior
national weather service marquette mi
400 am est mon jan 5 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...

today, 29.8 inch low pressure moves over lake superior while a 29.6 
inch low develops over the centralo plains. the plains low then 
moves to southern lake michigan tuesday, then southern ontario 
tuesday evening as it deepens to 29.5 inches. ridging of around 29.8 
inches then moves over lake superior on wednesday ahead of a 29.5 
inch low arriving over northern ontario thursday morning. this low 
brings a trough across the lake thursday before lifting to james bay 
late thursday. meanwhile, a colorado low of around 29.6 inches will 
quickly approach the upper great lakes by friday morning, moving 
into ontario by late friday to early saturday.



lsz267-052100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am est mon jan 5 2026

.early this morning...south winds 15 to 25 knots. snow showers
likely. waves 3 to 5 feet occasionally to 7 feet subsiding to
2 to 4 feet. 
.today...south winds 10 to 20 knots diminishing to 5 to 15 knots.
a chance of snow showers in the morning. waves subsiding to calm
to 2 feet. 
.tonight...south winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday...south winds 10 to 20 knots veering southwest by mid
afternoon. a chance of snow showers. waves calm to 2 feet. 
.tuesday night...west winds 10 to 20 knots. waves building to
2 to 4 feet, then subsiding to 1 to 3 feet. 
.wednesday...west winds 10 to 20 knots backing southwest in the
afternoon. waves 1 to 3 feet. 
.wednesday night...south winds 15 to 25 knots. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.thursday...south winds 10 to 20 knots backing north. waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.friday...northeast winds 10 to 20 knots increasing to 15 to
25 knots. a chance of snow showers, possibly mixed with rain.
waves building to 3 to 5 feet occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 050901
glfls 
expires:202601052100;;818343

open lake forecast for lake superior
national weather service marquette mi
400 am est mon jan 5 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...

today, 29.8 inch low pressure moves over lake superior while a 29.6 
inch low develops over the centralo plains. the plains low then 
moves to southern lake michigan tuesday, then southern ontario 
tuesday evening as it deepens to 29.5 inches. ridging of around 29.8 
inches then moves over lake superior on wednesday ahead of a 29.5 
inch low arriving over northern ontario thursday morning. this low 
brings a trough across the lake thursday before lifting to james bay 
late thursday. meanwhile, a colorado low of around 29.6 inches will 
quickly approach the upper great lakes by friday morning, moving 
into ontario by late friday to early saturday.



lsz162-052100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est mon jan 5 2026 /300 am cst mon jan 5 2026/

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...north winds 5 to 15 knots backing southwest. waves calm
to 2 feet. 
.tonight...southwest winds 5 to 15 knots veering west late. waves
calm to 2 feet. 
.tuesday...west winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a slight chance of rain showers, freezing rain
and snow showers in the morning. waves calm to 2 feet. 
.tuesday night...west winds 10 to 20 knots. waves calm to 2 feet.
.wednesday...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.wednesday night...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.thursday...west winds 10 to 20 knots becoming north 5 to
15 knots. waves calm to 2 feet. 
.friday...northeast 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 050901
glfls 
expires:202601052100;;818345

open lake forecast for lake superior
national weather service marquette mi
400 am est mon jan 5 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...

today, 29.8 inch low pressure moves over lake superior while a 29.6 
inch low develops over the centralo plains. the plains low then 
moves to southern lake michigan tuesday, then southern ontario 
tuesday evening as it deepens to 29.5 inches. ridging of around 29.8 
inches then moves over lake superior on wednesday ahead of a 29.5 
inch low arriving over northern ontario thursday morning. this low 
brings a trough across the lake thursday before lifting to james bay 
late thursday. meanwhile, a colorado low of around 29.6 inches will 
quickly approach the upper great lakes by friday morning, moving 
into ontario by late friday to early saturday.



lsz264-052100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am est mon jan 5 2026

.early this morning...west winds 5 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.today...north winds 5 to 15 knots backing southwest. waves
subsiding to calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...southwest winds less than 10 knots becoming west 5 to
15 knots. a slight chance of rain and snow showers in the
afternoon. waves calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. waves building to
1 to 3 feet. 
.wednesday night...southwest winds 5 to 15 knots. waves subsiding
to calm to 2 feet. 
.thursday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves building to 1 to 3 feet. 
.friday...north winds 5 to 15 knots becoming northeast 10 to
20 knots. waves building to 4 to 7 feet occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 050901
glfls 
expires:202601052100;;818344

open lake forecast for lake superior
national weather service marquette mi
400 am est mon jan 5 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...

today, 29.8 inch low pressure moves over lake superior while a 29.6 
inch low develops over the centralo plains. the plains low then 
moves to southern lake michigan tuesday, then southern ontario 
tuesday evening as it deepens to 29.5 inches. ridging of around 29.8 
inches then moves over lake superior on wednesday ahead of a 29.5 
inch low arriving over northern ontario thursday morning. this low 
brings a trough across the lake thursday before lifting to james bay 
late thursday. meanwhile, a colorado low of around 29.6 inches will 
quickly approach the upper great lakes by friday morning, moving 
into ontario by late friday to early saturday.



lsz263-052100-
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 mon jan 5 2026

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...north winds 5 to 15 knots backing southwest. waves calm
to 2 feet. 
.tonight...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...southwest winds less than 10 knots becoming west 5 to
15 knots. a slight chance of freezing rain in the morning. a
slight chance of rain and snow showers. waves calm to 2 feet. 
.tuesday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. waves building to
1 to 3 feet, then subsiding to calm to 2 feet. 
.wednesday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...west winds 10 to 20 knots becoming north 5 to
15 knots. waves calm to 2 feet. 
.friday...northeast winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 050901
glfls 
expires:202601052100;;818346

open lake forecast for lake superior
national weather service marquette mi
400 am est mon jan 5 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...

today, 29.8 inch low pressure moves over lake superior while a 29.6 
inch low develops over the centralo plains. the plains low then 
moves to southern lake michigan tuesday, then southern ontario 
tuesday evening as it deepens to 29.5 inches. ridging of around 29.8 
inches then moves over lake superior on wednesday ahead of a 29.5 
inch low arriving over northern ontario thursday morning. this low 
brings a trough across the lake thursday before lifting to james bay 
late thursday. meanwhile, a colorado low of around 29.6 inches will 
quickly approach the upper great lakes by friday morning, moving 
into ontario by late friday to early saturday.



lsz265-052100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am est mon jan 5 2026

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet. 
.today...northwest winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots becoming southwest 10 to
20 knots by midnight, then diminishing to 5 to 15 knots late.
waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots becoming west 10 to
20 knots. a slight chance of snow showers. a slight chance of
rain showers in the afternoon. waves calm to 2 feet. 
.tuesday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.wednesday night...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.thursday...west winds 10 to 20 knots veering northwest. waves
calm to 2 feet. 
.friday...north winds 10 to 20 knots becoming northeast 15 to
25 knots. a chance of snow showers. waves building to 4 to 7 feet
occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$