fzus63 kmqt 010300
glfls 
expires:202602010900;;884187

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat jan 31 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...

high pressure of 30.5 inches extends over the southern plains and 
lower mississippi valley while maintaining at least 30.4 inch 
ridging over eastern lake superior tonight. ridging is pushed east 
sunday as 29.9 inch low pressure moves into northern ontario. this 
will cross lake superior as a 30.0 inch trough sunday night. the 
trough moves over the ontario/quebec line late monday as a 30.4 inch 
high moves over northwest ontario. this high settles south over the 
upper mississippi river valley and plains through wednesday ahead of 
a 29.7 inch low moving into manitoba by thursday morning.



lsz162-010900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est sat jan 31 2026 /900 pm cst sat jan 31 2026/

.rest of tonight...south winds 10 to 20 knots increasing to 15 to
25 knots late. a chance of snow showers after midnight. waves
calm to 2 feet building to 2 to 4 feet. 
.sunday...south winds 15 to 25 knots veering southwest. a chance
of snow showers. waves 2 to 4 feet. 
.sunday night...west winds 10 to 20 knots veering northwest by
midnight, then increasing to 15 to 25 knots late. a chance of
snow showers. waves subsiding to calm to 2 feet. 
.monday...northwest winds 10 to 20 knots. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.tuesday...north winds 5 to 15 knots backing northwest in the
afternoon. waves calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots becoming west 15 to
25 knots. snow showers likely, then a chance of snow showers.
waves building to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 010300
glfls 
expires:202602010900;;884188

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat jan 31 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...

high pressure of 30.5 inches extends over the southern plains and 
lower mississippi valley while maintaining at least 30.4 inch 
ridging over eastern lake superior tonight. ridging is pushed east 
sunday as 29.9 inch low pressure moves into northern ontario. this 
will cross lake superior as a 30.0 inch trough sunday night. the 
trough moves over the ontario/quebec line late monday as a 30.4 inch 
high moves over northwest ontario. this high settles south over the 
upper mississippi river valley and plains through wednesday ahead of 
a 29.7 inch low moving into manitoba by thursday morning.



lsz263-010900-
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 sat jan 31 2026

.rest of tonight...south winds 5 to 15 knots increasing to 15 to
25 knots. waves calm to 2 feet building to 2 to 4 feet. 
.sunday...south winds 15 to 25 knots veering southwest by late
morning, then diminishing to 10 to 20 knots by mid afternoon. a
chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.sunday night...southwest winds 10 to 20 knots becoming northwest
5 to 15 knots by midnight, then increasing to 10 to 20 knots
late. snow showers in the evening, then a chance of snow showers
after midnight. waves subsiding to 1 to 3 feet, then building to
2 to 4 feet. 
.monday...northwest winds 10 to 20 knots. a slight chance of snow
showers. waves subsiding to 1 to 3 feet. 
.monday night...north winds 10 to 20 knots. a slight chance of
snow showers. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.tuesday...north winds 5 to 15 knots backing northwest in the
afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.wednesday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.thursday...southwest winds 10 to 20 knots becoming west 20 to
30 knots. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$