fzus63 kmqt 162101
glfls 
expires:202601170900;;001173

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri jan 16 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 over western lake superior this morning will slowly 
meander over upper michigan through saturday morning, further 
weakening to 29.8 inches saturday afternoon when it reaches just 
north of gregorian bay. meanwhile, a 30.4 inch high sets up over the 
plains. while low lifts northeast through quebec saturday night, the 
high settles toward the southeast u.s., briefly extending 29.9 inch 
ridging over lake superior. this quickly is replaced by a clipper 
low of at least 29.6 inches on sunday. the low continues to quebec 
on monday as it deepens to 29.4 inches while another high pressure 
of 30.5 inches drops south over the plains. ridging of at least 30.2 
inches looks to return to the upper great lakes on tuesday.



lsz162-170900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est fri jan 16 2026 /300 pm cst fri jan 16 2026/

.late this afternoon...northwest winds 15 to 25 knots. snow
showers likely. waves 1 to 3 feet building to 2 to 4 feet. 
.tonight...north winds 15 to 25 knots increasing to 20 to
30 knots by midnight. a chance of snow showers. waves building to
3 to 5 feet occasionally to 7 feet. 
.saturday...north winds 20 to 30 knots becoming northwest 15 to
25 knots by mid afternoon. a slight chance of snow showers. waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
2 to 4 feet. 
.saturday night...northwest winds 10 to 20 knots backing west
late. a chance of snow showers. waves subsiding to calm to
2 feet. 
.sunday...southwest winds 15 to 25 knots veering west in the
afternoon. snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.sunday night...northwest gales to 40 knots. 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 in the afternoon. heavy freezing spray in the morning.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.monday night...northwest winds 15 to 25 knots backing west after
midnight. waves subsiding to 1 to 3 feet. 
.tuesday...west winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.wednesday...northwest winds 10 to 20 knots. waves calm to
2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 162101
glfls 
expires:202601170900;;001174

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri jan 16 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 over western lake superior this morning will slowly 
meander over upper michigan through saturday morning, further 
weakening to 29.8 inches saturday afternoon when it reaches just 
north of gregorian bay. meanwhile, a 30.4 inch high sets up over the 
plains. while low lifts northeast through quebec saturday night, the 
high settles toward the southeast u.s., briefly extending 29.9 inch 
ridging over lake superior. this quickly is replaced by a clipper 
low of at least 29.6 inches on sunday. the low continues to quebec 
on monday as it deepens to 29.4 inches while another high pressure 
of 30.5 inches drops south over the plains. ridging of at least 30.2 
inches looks to return to the upper great lakes on tuesday.



lsz263-170900-
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-
400 pm est fri jan 16 2026

.late this afternoon...north winds 15 to 25 knots. a chance of
snow showers. waves 1 to 3 feet. 
.tonight...north winds 15 to 25 knots increasing to 20 to
30 knots late. a chance of snow showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.saturday...north winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. freezing spray. a chance of snow
showers. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...north winds 15 to 25 knots diminishing to 5 to
15 knots by midnight, then becoming west 10 to 20 knots late. a
chance of snow showers. waves subsiding to 1 to 3 feet. 
.sunday...southwest winds 15 to 25 knots veering west in the
afternoon. a chance of snow showers in the morning, then snow
showers in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...northwest gales to 40 knots. heavy freezing
spray. a chance of snow showers. waves building to 10 to 14 feet
occasionally to 18 feet. 
.monday...northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. heavy freezing spray. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.monday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. heavy freezing spray. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 
.wednesday...northwest winds 10 to 20 knots. waves building to
2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$