fzus63 kmqt 110300
glfls 
expires:202601110900;;146027

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat jan 10 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 late tonight and sunday 
as a deepening surface low exits into ontario. a weak 29.9 inch 
trough pushes over lake superior sunday night as a 29.6 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 lake winnipeg. this 
low deepens to 29.3 inches by tuesday evening as it moves into lake 
superior before moving into southern quebec by wednesday morning. 
meanwhile, 30.6 inch high pressure builds over the dakotas during 
the middle of next week.



lsz162-110900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est sat jan 10 2026 /900 pm cst sat jan 10 2026/

...gale warning in effect until 1 am est /midnight cst/ sunday...

.rest of tonight...north gales to 35 knots diminishing to 10 to
20 knots. a slight chance of snow showers late in the evening.
freezing spray after midnight. waves 5 to 8 feet occasionally to
10 feet building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 4 to 7 feet occasionally to 9 feet. 
.sunday...northwest winds 10 to 20 knots backing west by late
morning, then becoming southwest 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.
.sunday night...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 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...north gales to 35 knots. a chance of snow
showers. waves building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...north winds 20 to 30 knots becoming northwest 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 110300
glfls 
expires:202601110900;;146028

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat jan 10 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 late tonight and sunday 
as a deepening surface low exits into ontario. a weak 29.9 inch 
trough pushes over lake superior sunday night as a 29.6 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 lake winnipeg. this 
low deepens to 29.3 inches by tuesday evening as it moves into lake 
superior before moving into southern quebec by wednesday morning. 
meanwhile, 30.6 inch high pressure builds over the dakotas during 
the middle of next week.



lsz263-110900-
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 sat jan 10 2026

...gale warning in effect until 1 am est sunday...

.rest of tonight...northeast gales to 35 knots backing north by
midnight, then diminishing to 20 to 30 knots late. freezing
spray. a chance of snow showers. waves 7 to 10 feet occasionally
to 13 feet building to 9 to 12 feet occasionally to 15 feet, then
subsiding to 5 to 8 feet occasionally to 10 feet. 
.sunday...north 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. 
.sunday night...southwest gales to 35 knots becoming west 20 to
30 knots by midnight. snow showers likely 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. waves subsiding to 2 to
4 feet. 
.monday night...southwest winds 10 to 20 knots. a slight chance
of rain showers, possibly mixed with snow after midnight. waves
2 to 4 feet. 
.tuesday...west winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. rain showers, possibly mixed with snow in the
morning, then a chance of rain showers, possibly mixed with snow
in the afternoon. waves building to 3 to 6 feet occasionally to
8 feet. 
.tuesday night...north gales to 40 knots. freezing spray. a
chance of snow showers. waves building to 8 to 11 feet
occasionally to 14 feet. 
.wednesday...north gales to 35 knots becoming northwest 15 to
25 knots. freezing spray. waves subsiding to 1 to 3 feet. 
.thursday...southwest winds 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. 

note, wave height forecasts are for ice free areas.

$$