fzus63 kmqt 091501
glfls 
expires:202602092100;;350291

open lake forecast for lake superior
national weather service marquette mi
1000 am 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. today through 
tuesday 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 tuesday 
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.



lsz162-092100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est mon feb 9 2026 /900 am cst mon feb 9 2026/

.rest of today...southwest winds 10 to 20 knots. a slight chance
of rain and snow showers in the afternoon. waves calm to 2 feet. 
.tonight...southwest winds 10 to 20 knots veering west by
midnight. a chance of rain showers, freezing rain and snow
showers 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 diminishing to 15 to 25 knots by mid
afternoon. waves calm to 2 feet. 
.tuesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. 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 5 to 15 knots becoming north
less than 10 knots after midnight. waves calm to 2 feet. 
.thursday...south winds less than 10 knots becoming southwest
5 to 15 knots. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 091501
glfls 
expires:202602092100;;350292

open lake forecast for lake superior
national weather service marquette mi
1000 am 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. today through 
tuesday 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 tuesday 
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.



lsz263-092100-
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 mon feb 9 2026

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

note, wave height forecasts are for ice free areas.

$$