fzus63 kmqt 260900
glfls 
expires:202601262100;;556591

open lake forecast for lake superior
national weather service marquette mi
400 am 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...

remnant 30.2 inch ridging over lake superior gradually weakens to 
30.1 inches through this morning as a 30.7 inch high drops south 
into the southern plains. a 29.7 inch low from manitoba deepens to 
29.6 inches as it crosses 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 late this week before strong high 
pressure descending from the canadian prairies brings ridging of 
around 30.6 inches back over lake superior by saturday.



lsz162-262100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est mon jan 26 2026 /300 am cst mon jan 26 2026/

...heavy freezing spray warning in effect from 10 am est /9 am
cst/ this morning through tuesday afternoon...
...gale warning in effect from 4 pm est /3 pm cst/ this afternoon
through this evening...

.early this morning...west winds 15 to 25 knots. waves 1 to
3 feet. 
.today...west winds 15 to 25 knots becoming southwest 20 to
30 knots by late morning, then increasing to gales to 35 knots by
mid afternoon. a slight chance of snow showers in the morning,
then snow showers likely in the afternoon. heavy freezing spray
in the afternoon. waves 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 slight chance of snow showers. waves
building to 8 to 11 feet occasionally to 14 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.tuesday...northwest winds 20 to 30 knots. a slight chance of
snow showers in the afternoon. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a slight chance of snow showers.
waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.wednesday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots backing northwest. waves calm
to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 260900
glfls 
expires:202601262100;;556592

open lake forecast for lake superior
national weather service marquette mi
400 am 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...

remnant 30.2 inch ridging over lake superior gradually weakens to 
30.1 inches through this morning as a 30.7 inch high drops south 
into the southern plains. a 29.7 inch low from manitoba deepens to 
29.6 inches as it crosses 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 late this week before strong high 
pressure descending from the canadian prairies brings ridging of 
around 30.6 inches back over lake superior by saturday.



lsz263-262100-
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 am est mon jan 26 2026

...heavy freezing spray warning in effect from 10 am est this
morning through tuesday evening...
...gale warning in effect from 4 pm est this afternoon through
this evening...

.early this morning...northwest winds 10 to 20 knots. a chance of
snow showers. waves 3 to 5 feet occasionally to 7 feet. 
.today...west winds 15 to 25 knots becoming southwest 20 to
30 knots by late morning, then increasing to gales to 35 knots by
mid afternoon. heavy freezing spray. a chance of snow showers.
waves building to 8 to 11 feet occasionally to 14 feet. 
.tonight...west gales to 35 knots becoming northwest 20 to
30 knots by midnight. 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 increasing to 20 to 30 knots by
mid afternoon. heavy freezing spray in the morning. a chance of
snow showers. waves subsiding to 4 to 8 feet occasionally to
10 feet. 
.tuesday night...northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. heavy freezing spray in the
evening. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.wednesday...northwest winds 10 to 20 knots. 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. waves 2 to 4 feet. 
.friday...north winds 10 to 20 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$