fzus63 kmqt 262101
glfls 
expires:202601270900;;586522

open lake forecast for lake superior
national weather service marquette mi
400 pm est mon jan 26 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...

30.1 inch ridging this afternoon gives way to a 29.7 inch trough 
crossing lake superior tonight into tuesday morning. a much weaker 
low grazes the northeast portion of the lake at 30.0 inches tuesday 
night into wednesday. remnant troughing gradually weakens over the 
lake at least through late thursday before strong high pressure 
descending from the canadian prairies brings ridging of around 30.6 
inches back over lake superior late friday into saturday.



lsz162-270900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est mon jan 26 2026 /300 pm cst mon jan 26 2026/

...gale warning in effect until 10 pm est /9 pm cst/ this
evening...
...heavy freezing spray warning in effect through tuesday
afternoon...

.late this afternoon...southwest gales to 35 knots. heavy
freezing spray. snow showers likely. waves 6 to 9 feet
occasionally to 11 feet building to 7 to 10 feet occasionally to
13 feet. 
.tonight...west gales to 35 knots becoming northwest 20 to
30 knots by midnight, then increasing to gales to 35 knots late.
heavy freezing spray. a chance of snow showers. waves subsiding
to 4 to 8 feet occasionally to 10 feet. 
.tuesday...northwest winds 20 to 30 knots backing west by mid
afternoon. heavy freezing spray in the morning. a slight chance
of snow showers in the morning. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...west winds 15 to 25 knots veering northwest by
midnight, then diminishing to 10 to 20 knots late. a slight
chance of snow showers after midnight. waves subsiding to 2 to
4 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. a slight chance of snow showers. waves
subsiding to calm to 2 feet. 
.wednesday night...north winds 10 to 20 knots. waves calm to
2 feet. 
.thursday...north winds 10 to 20 knots. waves calm to 2 feet. 
.thursday night...north winds 10 to 20 knots. waves calm to
2 feet. 
.friday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 262101
glfls 
expires:202601270900;;586523

open lake forecast for lake superior
national weather service marquette mi
400 pm est mon jan 26 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...

30.1 inch ridging this afternoon gives way to a 29.7 inch trough 
crossing lake superior tonight into tuesday morning. a much weaker 
low grazes the northeast portion of the lake at 30.0 inches tuesday 
night into wednesday. remnant troughing gradually weakens over the 
lake at least through late thursday before strong high pressure 
descending from the canadian prairies brings ridging of around 30.6 
inches back over lake superior late friday into saturday.



lsz263-270900-
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 pm est mon jan 26 2026

...gale warning in effect until 10 pm est this evening...
...heavy freezing spray warning in effect through tuesday
evening...

.late this afternoon...southwest gales to 35 knots. heavy
freezing spray. a chance of snow showers. waves 7 to 10 feet
occasionally to 13 feet. 
.tonight...west gales to 40 knots becoming northwest gales to
35 knots by midnight, then diminishing to 20 to 30 knots late.
heavy freezing spray. snow showers in the evening. a chance of
snow showers after midnight. waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.tuesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by late morning, then becoming west 20 to 30 knots by
mid afternoon. heavy freezing spray. a chance of snow showers.
waves building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 4 to 7 feet occasionally to 9 feet. 
.tuesday night...west winds 20 to 30 knots becoming northwest
15 to 25 knots by midnight. heavy freezing spray in the evening.
a chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...north winds 10 to 20 knots backing northwest in the
afternoon. a chance of snow showers. waves subsiding to 1 to
3 feet. 
.wednesday night...north winds 10 to 20 knots. a chance of snow
showers. waves building to 2 to 4 feet. 
.thursday...north winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a chance of snow showers. waves 2 to
4 feet. 
.thursday night...north winds 15 to 25 knots. waves 2 to 4 feet. 
.friday...north winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.saturday...west winds 5 to 15 knots becoming southwest 10 to
20 knots. waves building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$