fzus63 kmqt 111501
glfls 
expires:202601112100;;173430

open lake forecast for lake superior
national weather service marquette mi
1000 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 is building over lake superior today, with 
deepening low pressure exiting over 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-
1000 am est sun jan 11 2026 /900 am cst sun jan 11 2026/

.rest of today...west 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 3 to 5 feet
occasionally to 7 feet 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 subsiding to calm to
2 feet, then building to 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 6 to 9 feet
occasionally to 11 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 111501
glfls 
expires:202601112100;;173431

open lake forecast for lake superior
national weather service marquette mi
1000 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 is building over lake superior today, with 
deepening low pressure exiting over 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-
1000 am est sun jan 11 2026

.rest of today...northwest winds 5 to 15 knots becoming west
10 to 20 knots by late morning, then becoming southwest 20 to
30 knots by mid afternoon. a slight chance of snow showers in the
afternoon. waves 3 to 5 feet occasionally to 7 feet 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 5 to 8 feet
occasionally to 10 feet. 
.monday...west winds 15 to 25 knots diminishing to 10 to 20 knots
by mid afternoon. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.monday night...southwest winds 10 to 20 knots. a slight chance
of rain and snow showers after midnight. waves subsiding to 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 5 feet occasionally to 7 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 11 to 15 feet
occasionally to 19 feet. 
.wednesday...north gales to 45 knots diminishing to 15 to
25 knots. heavy freezing spray. waves subsiding to calm to
2 feet. 
.thursday...southwest winds 15 to 25 knots. a chance of snow
showers. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$