fzus63 kmqt 142101
glfls 
expires:202601150900;;352311

open lake forecast for lake superior
national weather service marquette mi
401 pm est wed jan 14 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...

a 29.4 inch low continues to track through northern quebec this 
evening while 30.4 inch high pressure slides over minnesota. high 
pressure skirts the southwestern periphery of the great lakes basin 
thursday while weakening to 30.2 inches as it retreats into the 
gulf. ridging is followed up by a 29.4 inch low moving over lake 
superior on friday, which weakens to 29.7 inches over southern 
ontario saturday. meanwhile, high pressure of at least 30.2 inches 
settles west of the great lakes over the weekend. a weak clipper low 
of around 29.9 inches is then expected to move over lake superior 
late sunday into early next week.



lsz162-150900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm est wed jan 14 2026 /301 pm cst wed jan 14 2026/

.late this afternoon...north winds 20 to 30 knots. waves 3 to
5 feet occasionally to 7 feet. 
.tonight...north winds 15 to 25 knots diminishing to 5 to
15 knots by midnight, then backing west late. waves subsiding to
calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 20 to
30 knots. a slight chance of snow showers in the morning, then
snow showers likely in the afternoon. waves building to 3 to
6 feet occasionally to 8 feet. 
.thursday night...southwest winds 15 to 25 knots becoming west
5 to 15 knots by midnight, then becoming northwest 10 to 20 knots
late. snow showers likely in the evening, then a chance of snow
showers after midnight. waves subsiding to calm to 2 feet. 
.friday...north winds 10 to 20 knots becoming northwest 15 to
25 knots in the afternoon. a chance of snow showers in the
morning, then snow showers likely in the afternoon. waves
building to 2 to 4 feet. 
.friday night...northwest winds 20 to 30 knots veering north
after midnight. a chance of snow showers. waves 2 to 4 feet. 
.saturday...north winds 20 to 30 knots. a chance of snow showers.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.saturday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.sunday...west winds 15 to 25 knots becoming northwest 20 to
30 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday...northwest winds 20 to 30 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 142101
glfls 
expires:202601150900;;352312

open lake forecast for lake superior
national weather service marquette mi
401 pm est wed jan 14 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...

a 29.4 inch low continues to track through northern quebec this 
evening while 30.4 inch high pressure slides over minnesota. high 
pressure skirts the southwestern periphery of the great lakes basin 
thursday while weakening to 30.2 inches as it retreats into the 
gulf. ridging is followed up by a 29.4 inch low moving over lake 
superior on friday, which weakens to 29.7 inches over southern 
ontario saturday. meanwhile, high pressure of at least 30.2 inches 
settles west of the great lakes over the weekend. a weak clipper low 
of around 29.9 inches is then expected to move over lake superior 
late sunday into early next week.



lsz263-150900-
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 wed jan 14 2026

.late this afternoon...north winds 15 to 25 knots. freezing
spray. waves 4 to 7 feet occasionally to 9 feet. 
.tonight...north winds 15 to 25 knots diminishing to 5 to
15 knots. freezing spray in the evening. a slight chance of snow
showers after midnight. waves subsiding to 1 to 3 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 20 to
30 knots. freezing spray in the afternoon. snow showers likely in
the afternoon. waves subsiding to calm to 2 feet, then building
to 4 to 7 feet occasionally to 9 feet. 
.thursday night...southwest winds 15 to 25 knots diminishing to
5 to 15 knots. snow showers likely in the evening, then a chance
of snow showers after midnight. waves subsiding to 1 to 3 feet. 
.friday...north winds 5 to 15 knots increasing to 15 to 25 knots
in the afternoon. a chance of snow showers. waves subsiding to
calm to 2 feet, then building to 2 to 4 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 in the
morning. a chance of snow showers. waves building to 4 to 7 feet
occasionally to 9 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 20 to 30 knots becoming northwest gales to
35 knots. a chance of snow showers. heavy freezing spray. waves
building to 5 to 8 feet occasionally to 10 feet. 
.monday...northwest gales to 35 knots diminishing to 20 to
30 knots. heavy freezing spray. waves subsiding to 3 to 6 feet
occasionally to 8 feet, then building to 4 to 7 feet occasionally
to 9 feet. 

note, wave height forecasts are for ice free areas.

$$