fzus63 kmqt 100301
glfls 
expires:202602100900;;377329

open lake forecast for lake superior
national weather service marquette mi
1000 pm est mon feb 9 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...

lake superior is currently between a 30.5 inch high over the lower 
great lakes and a 29.7 inch low over lake winnipeg. tonight through 
tomorrow afternoon, this low will slowly push just north of lake 
superior, dragging a 29.8 inch trough over the lake as it 
progresses. as the low shifts to the ontario/quebec line tomorrow 
night, high pressure of 30.3 inches builds over the northern plains. 
this high gradually settles over the great lakes by thursday 
morning, building to 30.4 inches. friday, the high moves to the 
southern portion of the great lakes while a 29.9 inch low moves 
across northern ontario. this weekend, high pressure resumes over 
the great lakes as a whole before another clipper low pressure moves 
across manitoba and ontario while a colorado low develops.



lsz162-100900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est mon feb 9 2026 /900 pm cst mon feb 9 2026/

.rest of tonight...southwest winds 10 to 20 knots veering west by
midnight. a slight chance of rain and snow showers late in the
evening. waves calm to 2 feet. 
.tuesday...west winds 15 to 25 knots increasing to 20 to 30 knots
by late morning, then veering northwest by mid afternoon. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tuesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots late. waves calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet. 
.wednesday night...northwest winds less than 10 knots veering
north after midnight. waves calm to 2 feet. 
.thursday...east winds less than 10 knots becoming south 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.friday...southwest winds 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.

$$

fzus63 kmqt 100301
glfls 
expires:202602100900;;377330

open lake forecast for lake superior
national weather service marquette mi
1000 pm est mon feb 9 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...

lake superior is currently between a 30.5 inch high over the lower 
great lakes and a 29.7 inch low over lake winnipeg. tonight through 
tomorrow afternoon, this low will slowly push just north of lake 
superior, dragging a 29.8 inch trough over the lake as it 
progresses. as the low shifts to the ontario/quebec line tomorrow 
night, high pressure of 30.3 inches builds over the northern plains. 
this high gradually settles over the great lakes by thursday 
morning, building to 30.4 inches. friday, the high moves to the 
southern portion of the great lakes while a 29.9 inch low moves 
across northern ontario. this weekend, high pressure resumes over 
the great lakes as a whole before another clipper low pressure moves 
across manitoba and ontario while a colorado low develops.



lsz263-100900-
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 pm est mon feb 9 2026

.rest of tonight...southwest winds 5 to 15 knots becoming west
10 to 20 knots late. a slight chance of freezing rain late in the
evening. a chance of snow showers. waves calm to 2 feet building
to 1 to 3 feet. 
.tuesday...west winds 15 to 25 knots increasing to 20 to 30 knots
by late morning, then veering northwest by mid afternoon. a
chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...northwest winds 15 to 25 knots. a slight chance
of snow showers in the evening. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...northwest winds 5 to 15 knots diminishing to
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. 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. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$