fzus63 kmqt 011501
glfls 
expires:202602012100;;912492

open lake forecast for lake superior
national weather service marquette mi
1000 am est sun feb 1 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 29.9 inch trough will cross lake superior tonight. the trough 
moves over the ontario/quebec line late monday as a 30.4 inch high 
moves south from lake winnipeg. this high settles south over the 
upper mississippi river valley and plains through wednesday ahead of 
a 29.7 inch low moving into manitoba by thursday morning. this 
quickly tracks through the great lakes thursday evening through 
friday morning followed by ridging of at least 30.3 inches by friday 
night.



lsz162-012100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est sun feb 1 2026 /900 am cst sun feb 1 2026/

.rest of today...south winds 20 to 30 knots becoming southwest
15 to 25 knots by late morning, then diminishing to 10 to
20 knots by mid afternoon. a chance of snow late in the morning,
then snow likely in the afternoon. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.tonight...west winds 10 to 20 knots veering northwest by
midnight, then increasing to 15 to 25 knots late. a chance of
snow. waves subsiding to calm to 2 feet. 
.monday...northwest winds 10 to 20 knots. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.tuesday...north winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet. 
.tuesday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...southwest winds 15 to 25 knots veering north. snow
showers likely. a chance of rain showers. a chance of snow
showers. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 011501
glfls 
expires:202602012100;;912493

open lake forecast for lake superior
national weather service marquette mi
1000 am est sun feb 1 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 29.9 inch trough will cross lake superior tonight. the trough 
moves over the ontario/quebec line late monday as a 30.4 inch high 
moves south from lake winnipeg. this high settles south over the 
upper mississippi river valley and plains through wednesday ahead of 
a 29.7 inch low moving into manitoba by thursday morning. this 
quickly tracks through the great lakes thursday evening through 
friday morning followed by ridging of at least 30.3 inches by friday 
night.



lsz263-012100-
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 am est sun feb 1 2026

.rest of today...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. waves 2 to 4 feet building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.tonight...southwest winds 10 to 20 knots becoming northwest 5 to
15 knots by midnight, then increasing to 10 to 20 knots late.
snow likely in the evening, then a slight chance of snow after
midnight. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.monday...northwest winds 10 to 20 knots. a slight chance of snow
showers. waves subsiding to 1 to 3 feet. 
.monday night...north winds 10 to 20 knots. a slight chance of
snow showers. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.tuesday...north winds 5 to 15 knots backing northwest in the
afternoon. a slight chance of snow showers in the morning. waves
subsiding to calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 
.thursday...southwest winds 15 to 25 knots becoming north 20 to
30 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$