fzus63 kmqt 102101
glfls 
expires:202601110900;;132362

open lake forecast for lake superior
national weather service marquette mi
401 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...

29.9 inch troughing extends over lake superior this afternoon and 
evening from a 29.8 inch low pressure lifting into southern ontario. 
30.2 inch ridging moves over lake superior on sunday as the low 
deepens to 29.6 inches over eastern ontario sunday morning. a weak 
29.9 inch trough pushes over lake superior sunday night as a 29.6 
inch low moves over hudson bay. a weak 30.0 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 near 
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-
401 pm est sat jan 10 2026 /301 pm cst sat jan 10 2026/

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

.late this afternoon...northwest winds 15 to 25 knots. a chance
of snow showers. waves 1 to 3 feet. 
.tonight...north gales to 35 knots diminishing to 10 to 20 knots.
a chance of snow showers in the evening. freezing spray after
midnight. waves 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 102101
glfls 
expires:202601110900;;132363

open lake forecast for lake superior
national weather service marquette mi
401 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...

29.9 inch troughing extends over lake superior this afternoon and 
evening from a 29.8 inch low pressure lifting into southern ontario. 
30.2 inch ridging moves over lake superior on sunday as the low 
deepens to 29.6 inches over eastern ontario sunday morning. a weak 
29.9 inch trough pushes over lake superior sunday night as a 29.6 
inch low moves over hudson bay. a weak 30.0 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 near 
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-
401 pm est sat jan 10 2026

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

.late this afternoon...northwest winds 15 to 25 knots. snow
showers. waves 3 to 5 feet occasionally to 7 feet building to
4 to 7 feet occasionally to 9 feet. 
.tonight...northeast gales to 35 knots backing north by midnight,
then diminishing to 20 to 30 knots late. snow showers likely in
the evening, then a slight chance of snow showers after midnight.
freezing spray after midnight. waves 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. 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 5 feet occasionally to
7 feet. 
.tuesday night...north gales to 40 knots. freezing spray. a
chance of snow showers. waves building to 7 to 10 feet
occasionally to 13 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. 

note, wave height forecasts are for ice free areas.

$$