fzus63 kmqt 060301
glfls 
expires:202602060900;;157947

open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu feb 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...

troughing over lake superior deepens to 29.6 inches tonight as its 
parent low deepens to 29.3 inches over hudson bay. the 29.6 inch 
trough over the lake then leaves to the east on friday, allowing a 
30.5 inch high to move over the lake by saturday. the high shifts 
east through sunday in advance of a clipper low arriving over far 
western lake superior at 29.8 inches by monday morning. because this 
clipper low deteriorates over the upper great lakes on monday, weak 
ridging of 30.0 inches returns over lake superior on tuesday.



lsz162-060900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est thu feb 5 2026 /900 pm cst thu feb 5 2026/

.rest of tonight...west winds 10 to 20 knots becoming north 15 to
25 knots late. a chance of snow showers and freezing drizzle.
waves calm to 2 feet. 
.friday...north winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.friday night...north winds 10 to 20 knots diminishing to 5 to
15 knots by midnight. waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots backing southeast in the
afternoon. a slight chance of snow showers in the afternoon.
waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. a chance of snow showers. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots backing northeast. waves calm
to 2 feet. 
.tuesday...northeast winds 5 to 15 knots becoming northwest 10 to
20 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 060301
glfls 
expires:202602060900;;157948

open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu feb 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...

troughing over lake superior deepens to 29.6 inches tonight as its 
parent low deepens to 29.3 inches over hudson bay. the 29.6 inch 
trough over the lake then leaves to the east on friday, allowing a 
30.5 inch high to move over the lake by saturday. the high shifts 
east through sunday in advance of a clipper low arriving over far 
western lake superior at 29.8 inches by monday morning. because this 
clipper low deteriorates over the upper great lakes on monday, weak 
ridging of 30.0 inches returns over lake superior on tuesday.



lsz263-060900-
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 thu feb 5 2026

...gale warning in effect from 7 am est friday through friday
afternoon...
...heavy freezing spray warning in effect from 7 am est friday
through friday evening...

.rest of tonight...west winds 5 to 15 knots increasing to 10 to
20 knots by midnight, then becoming north 20 to 30 knots late. a
slight chance of freezing drizzle late in the evening. a chance
of snow showers. waves 1 to 3 feet subsiding to calm to 2 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.friday...north gales to 35 knots diminishing to 20 to 30 knots.
waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...north winds 15 to 25 knots diminishing to 10 to
20 knots late. waves subsiding to 1 to 3 feet. 
.saturday...north winds 5 to 15 knots becoming southeast less
than 10 knots in the afternoon. waves subsiding to calm to
2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. a chance of snow showers. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots backing northwest. waves
building to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$