fzus63 kmqt 050301
glfls 
expires:202601050900;;804884

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sun jan 4 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...

weakening low averaging 28.8 inches will move across the upper great 
lakes through monday. by midday monday another 29.6 inch low 
develops over the central plains. the low then moves into lake 
michigan tuesday, reaching 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 escaping to the east by friday 
morning, replaced by a 30.0 inch ridge.



lsz162-050900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est sun jan 4 2026 /900 pm cst sun jan 4 2026/

.rest of tonight...southeast winds 10 to 20 knots becoming south
5 to 15 knots by midnight, then veering west late. a chance of
snow showers late in the evening. waves 1 to 3 feet subsiding to
calm to 2 feet. 
.monday...northeast winds 5 to 15 knots veering southwest. waves
calm to 2 feet. 
.monday night...south winds 5 to 15 knots veering west late.
waves calm to 2 feet. 
.tuesday...west winds 5 to 15 knots. a slight chance of rain
showers and freezing rain in the morning. a slight chance of snow
showers. 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 veering northwest. waves
calm to 2 feet. 
.friday...west winds 10 to 20 knots becoming north 15 to
25 knots. waves building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 050301
glfls 
expires:202601050900;;804885

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sun jan 4 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...

weakening low averaging 28.8 inches will move across the upper great 
lakes through monday. by midday monday another 29.6 inch low 
develops over the central plains. the low then moves into lake 
michigan tuesday, reaching 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 escaping to the east by friday 
morning, replaced by a 30.0 inch ridge.



lsz263-050900-
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-
1000 pm est sun jan 4 2026

.rest of tonight...southeast winds 10 to 20 knots veering south
by midnight, then becoming southwest 5 to 15 knots late. snow
showers late in the evening, then a slight chance of snow showers
after midnight. waves 1 to 3 feet subsiding to calm to 2 feet. 
.monday...northeast winds 5 to 15 knots veering southwest. waves
calm to 2 feet. 
.monday night...southwest winds 5 to 15 knots diminishing to less
than 10 knots by midnight. waves calm to 2 feet. 
.tuesday...west winds 5 to 15 knots. 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 5 to 15 knots increasing to 10 to
20 knots in the afternoon. 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 5 to 15 knots veering northwest. waves
calm to 2 feet. 
.friday...north winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$