fzus63 kmqt 020300
glfls 
expires:202602020900;;940850

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 monday night 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 29.4 inch low moving into hudson bay by thursday morning. this low 
pulls a 29.6 inch trough through lake superior thursday night 
followed by ridging of at least 30.3 inches by friday night.



lsz162-020900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est sun feb 1 2026 /900 pm cst sun feb 1 2026/

.rest of tonight...northwest winds 15 to 25 knots. a slight
chance of snow showers late in the evening. waves 1 to 3 feet
building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.monday...northwest winds 10 to 20 knots. waves subsiding to calm
to 2 feet. 
.monday night...north winds 10 to 20 knots diminishing to 5 to
15 knots by 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. 
.wednesday night...west winds 5 to 15 knots backing southwest
after midnight. waves calm to 2 feet. 
.thursday...southwest winds 15 to 25 knots veering north. a
chance of snow showers, possibly mixed with rain. waves building
to 1 to 3 feet, then subsiding to calm to 2 feet. 
.friday...north winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 020300
glfls 
expires:202602020900;;940851

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 monday night 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 29.4 inch low moving into hudson bay by thursday morning. this low 
pulls a 29.6 inch trough through lake superior thursday night 
followed by ridging of at least 30.3 inches by friday night.



lsz263-020900-
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 feb 1 2026

.rest of tonight...west winds 10 to 20 knots veering northwest by
midnight. a chance of snow showers. waves 2 to 4 feet. 
.monday...north winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to 1 to 3 feet. 
.monday night...north winds 10 to 20 knots. 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. waves subsiding to calm to 2 feet. 
.tuesday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots. waves calm to 2 feet.
.wednesday night...west winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. 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 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.friday...north winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$