fzus63 kmqt 151501
glfls 
expires:202601152100;;926377

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu jan 15 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...

weak 30.0 inch ridging is analyzed over he lake this morning, 
extending from 30.3 inch high pressure sliding from the plains 
towards the gulf. this ridging is then followed up by a 29.4 inch 
low moving over lake superior on friday, which weakens to 29.7 
inches over georgian bay saturday. meanwhile, high pressure ridging 
of at least 30.2 inches settles west of the great lakes over the 
weekend. a clipper low of at least 29.5 inches is then expected to 
move over lake superior sunday and continue into quebec as it 
deepens to 29.4 inches on monday.



lsz162-152100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est thu jan 15 2026 /900 am cst thu jan 15 2026/

.rest of today...southwest winds 15 to 25 knots increasing to
20 to 30 knots by mid afternoon. a chance of snow showers late in
the morning, then snow showers likely in the afternoon. waves
1 to 3 feet building to 4 to 7 feet occasionally to 9 feet. 
.tonight...southwest winds 15 to 25 knots becoming west 10 to
20 knots by midnight, then veering northwest late. snow showers
likely. waves subsiding to calm to 2 feet. 
.friday...northwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. snow showers likely. waves building to
2 to 4 feet. 
.friday night...north winds 20 to 30 knots. a chance of snow
showers. waves building to 3 to 5 feet occasionally to 7 feet. 
.saturday...north winds 20 to 30 knots. a chance of snow showers.
waves subsiding to 2 to 4 feet. 
.saturday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.sunday...west winds 15 to 25 knots becoming northwest gales to
40 knots. snow showers likely, then a chance of snow showers.
waves building to 3 to 6 feet occasionally to 8 feet. 
.monday...northwest gales to 35 knots diminishing to 15 to
25 knots. waves subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 151501
glfls 
expires:202601152100;;926378

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu jan 15 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...

weak 30.0 inch ridging is analyzed over he lake this morning, 
extending from 30.3 inch high pressure sliding from the plains 
towards the gulf. this ridging is then followed up by a 29.4 inch 
low moving over lake superior on friday, which weakens to 29.7 
inches over georgian bay saturday. meanwhile, high pressure ridging 
of at least 30.2 inches settles west of the great lakes over the 
weekend. a clipper low of at least 29.5 inches is then expected to 
move over lake superior sunday and continue into quebec as it 
deepens to 29.4 inches on monday.



lsz263-152100-
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 thu jan 15 2026

.rest of today...south winds 10 to 20 knots increasing to 15 to
25 knots. a slight chance of snow showers late in the morning,
then snow showers likely in the afternoon. freezing spray in the
afternoon. waves calm to 2 feet building to 4 to 7 feet
occasionally to 9 feet. 
.tonight...southwest winds 15 to 25 knots diminishing to 10 to
20 knots by midnight, then becoming west 5 to 15 knots late.
freezing spray in the evening. snow showers likely. waves
subsiding to 2 to 4 feet. 
.friday...north winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a chance of snow showers. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.friday night...north winds 15 to 25 knots increasing to 20 to
30 knots after midnight. a chance of snow showers. freezing spray
after midnight. waves building to 3 to 6 feet occasionally to
8 feet. 
.saturday...north winds 20 to 30 knots. freezing spray. a chance
of snow showers. waves building to 5 to 8 feet occasionally to
10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...north winds 15 to 25 knots becoming northwest
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.sunday...west winds 15 to 25 knots becoming northwest gales to
40 knots. a chance of snow showers. heavy freezing spray. waves
building to 7 to 10 feet occasionally to 13 feet. 
.monday...northwest gales to 40 knots diminishing to 20 to
30 knots. heavy freezing spray. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$