fzus63 kmqt 100901
glfls 
expires:202602102100;;391173

open lake forecast for lake superior
national weather service marquette mi
401 am est tue feb 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...

a 29.7 inch low over north-central ontario will pull a 29.8 inch 
trough through lake superior through this afternoon. as the low 
shifts to the ontario/quebec line tuesday night, high pressure of 
30.3 inches builds over the northern plains. this high gradually 
settles over the great lakes by thursday morning. friday, the high 
moves to the southern portion of the great lakes while a 29.8 inch 
low moves across northern ontario. this low pulls a 29.9 inch trough 
near eastern lake superior friday afternoon. saturday, high pressure 
resumes over the great lakes before a weak 29.9 inch trough moves 
into the upper great lakes saturday night.



lsz162-102100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am est tue feb 10 2026 /301 am cst tue feb 10 2026/

.early this morning...west winds 15 to 25 knots. waves calm to
2 feet. 
.today...west winds 15 to 25 knots increasing to 20 to 30 knots.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tonight...northwest winds 15 to 25 knots becoming west 10 to
20 knots late. waves calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots backing west by late
morning, then diminishing to 5 to 15 knots by mid afternoon.
waves calm to 2 feet. 
.wednesday night...west winds less than 10 knots veering
northeast after midnight. waves calm to 2 feet. 
.thursday...east winds less than 10 knots veering south in the
afternoon. waves calm to 2 feet. 
.thursday night...southwest winds less than 10 knots becoming
west 5 to 15 knots after midnight. waves calm to 2 feet. 
.friday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots veering west. waves
calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 100901
glfls 
expires:202602102100;;391174

open lake forecast for lake superior
national weather service marquette mi
401 am est tue feb 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...

a 29.7 inch low over north-central ontario will pull a 29.8 inch 
trough through lake superior through this afternoon. as the low 
shifts to the ontario/quebec line tuesday night, high pressure of 
30.3 inches builds over the northern plains. this high gradually 
settles over the great lakes by thursday morning. friday, the high 
moves to the southern portion of the great lakes while a 29.8 inch 
low moves across northern ontario. this low pulls a 29.9 inch trough 
near eastern lake superior friday afternoon. saturday, high pressure 
resumes over the great lakes before a weak 29.9 inch trough moves 
into the upper great lakes saturday night.



lsz263-102100-
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 am est tue feb 10 2026

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet building to 1 to 3 feet. 
.today...west winds 15 to 25 knots increasing to 20 to 30 knots.
isolated snow showers. waves building to 3 to 6 feet occasionally
to 8 feet. 
.tonight...northwest winds 15 to 25 knots. isolated snow showers
in the evening. waves subsiding to 1 to 3 feet. 
.wednesday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots becoming north less
than 10 knots after midnight. waves calm to 2 feet. 
.thursday...south winds less than 10 knots. waves calm to 2 feet.
.thursday night...southwest winds 5 to 15 knots veering west
after midnight. waves calm to 2 feet. 
.friday...west winds 10 to 20 knots becoming southwest 5 to
15 knots. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$