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fzus63 kmqt 161501
glfls 
expires:202601162100;;986397

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



lsz162-162100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est fri jan 16 2026 /900 am cst fri jan 16 2026/

.rest of today...northwest winds 10 to 20 knots increasing to
15 to 25 knots by mid afternoon. a chance of snow showers. waves
calm to 2 feet building to 3 to 5 feet occasionally to 7 feet. 
.tonight...northwest winds 20 to 30 knots veering north by
midnight. scattered snow showers. waves 3 to 5 feet occasionally
to 7 feet. 
.saturday...north winds 20 to 30 knots becoming northwest 15 to
25 knots by mid afternoon. scattered 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
after midnight. scattered 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 2 to 4 feet. 
.sunday night...northwest gales to 35 knots. heavy freezing
spray. a chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.monday...northwest gales to 35 knots diminishing to 15 to
25 knots. heavy freezing spray. waves subsiding to 1 to 3 feet. 
.tuesday...west winds 10 to 20 knots. waves subsiding to calm to
2 feet. 

note, wave height forecasts are for ice free areas.

$$
fzus63 kmqt 161501
glfls 
expires:202601162100;;986398

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



lsz263-162100-
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 fri jan 16 2026

.rest of today...north winds 5 to 15 knots becoming northwest
10 to 20 knots by late morning, then becoming north 15 to
25 knots by mid afternoon. snow showers likely. waves calm to
2 feet building to 3 to 5 feet occasionally to 7 feet. 
.tonight...north winds 15 to 25 knots diminishing to 10 to
20 knots by midnight, then increasing to 15 to 25 knots late.
scattered snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.saturday...north winds 20 to 30 knots. freezing spray. scattered
snow showers. waves building to 6 to 9 feet occasionally to
11 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...north winds 15 to 25 knots becoming west 10 to
20 knots after midnight. scattered snow showers. waves subsiding
to 1 to 3 feet. 
.sunday...southwest winds 15 to 25 knots veering west in the
afternoon. snow showers. freezing spray in the afternoon. waves
building to 3 to 5 feet occasionally to 7 feet. 
.sunday night...northwest gales to 40 knots. heavy freezing
spray. snow showers in the evening. a chance of snow showers
after midnight. waves building to 8 to 11 feet occasionally to
14 feet. 
.monday...northwest gales to 40 knots diminishing to 20 to
30 knots. heavy freezing spray. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...northwest winds 15 to 25 knots becoming west 10 to
20 knots. waves subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$
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