fzus63 kmqt 110901
glfls 
expires:202601112100;;159672

open lake forecast for lake superior
national weather service marquette mi
400 am est sun jan 11 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...

30.2 inch ridging moves over lake superior today as a deepening 
surface low exits into quebec. a weak 29.9 inch trough pushes over 
lake superior tonight as a 29.5 inch low moves over hudson bay. a 
weak 29.9 inch ridge then moves over the lake monday night ahead of 
a 29.4 inch low over manitoba. this low deepens to 29.3 inches as it 
moves over lake superior tuesday afternoon before moving into 
southern quebec by wednesday morning. meanwhile, 30.6 inch high 
pressure builds over the dakotas during the middle of next week and 
shifts east to the great lakes on thursday.



lsz162-112100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est sun jan 11 2026 /300 am cst sun jan 11 2026/

.early this morning...north winds 10 to 20 knots. waves 4 to
7 feet occasionally to 9 feet. 
.today...northwest winds 10 to 20 knots backing southwest by late
morning, then increasing to 20 to 30 knots by mid afternoon. a
chance of snow showers in the afternoon. waves subsiding to 2 to
4 feet, then building to 4 to 7 feet occasionally to 9 feet. 
.tonight...southwest winds 20 to 30 knots veering west by
midnight, then diminishing to 15 to 25 knots late. a chance of
snow showers in the evening. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.monday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 
.monday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of rain showers, possibly
mixed with snow after midnight. waves 1 to 3 feet. 
.tuesday...west winds 15 to 25 knots. rain showers, possibly
mixed with snow in the morning, then a chance of rain showers in
the afternoon. waves 1 to 3 feet. 
.tuesday night...northwest gales to 35 knots becoming north gales
to 40 knots after midnight. a chance of rain showers in the
evening. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.wednesday...north gales to 40 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 15 to 25 knots. a chance of snow
showers. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 110901
glfls 
expires:202601112100;;159673

open lake forecast for lake superior
national weather service marquette mi
400 am est sun jan 11 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...

30.2 inch ridging moves over lake superior today as a deepening 
surface low exits into quebec. a weak 29.9 inch trough pushes over 
lake superior tonight as a 29.5 inch low moves over hudson bay. a 
weak 29.9 inch ridge then moves over the lake monday night ahead of 
a 29.4 inch low over manitoba. this low deepens to 29.3 inches as it 
moves over lake superior tuesday afternoon before moving into 
southern quebec by wednesday morning. meanwhile, 30.6 inch high 
pressure builds over the dakotas during the middle of next week and 
shifts east to the great lakes on thursday.



lsz263-112100-
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 sun jan 11 2026

.early this morning...north winds 15 to 25 knots. freezing spray.
a slight chance of snow showers. waves 7 to 10 feet occasionally
to 13 feet subsiding to 5 to 8 feet occasionally to 10 feet. 
.today...northwest winds 10 to 20 knots backing west by late
morning, then becoming southwest 20 to 30 knots by mid afternoon.
a slight chance of snow showers in the afternoon. waves subsiding
to 2 to 4 feet, then building to 4 to 7 feet occasionally to
9 feet. 
.tonight...southwest winds 20 to 30 knots veering west by
midnight. snow showers in the evening. waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.monday...west winds 15 to 25 knots diminishing to 10 to 20 knots
by mid afternoon. waves subsiding to 2 to 4 feet. 
.monday night...southwest winds 10 to 20 knots. a slight chance
of rain and snow showers after midnight. waves 2 to 4 feet. 
.tuesday...west winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. rain showers, possibly mixed with snow in the
morning, then a chance of rain and snow showers in the afternoon.
waves building to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...north gales to 45 knots. a chance of rain
showers in the evening. a chance of snow showers. heavy freezing
spray after midnight. waves building to 8 to 11 feet occasionally
to 14 feet. 
.wednesday...north gales to 45 knots diminishing to 15 to
25 knots. heavy freezing spray. waves subsiding to 1 to 3 feet. 
.thursday...southwest winds 15 to 25 knots. a chance of snow
showers. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$