fzus63 kmqt 241501
glfls 
expires:202601242100;;449295

open lake forecast for lake superior
national weather service marquette mi
1000 am est sat jan 24 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...

30.8 inch high pressure centered over wisconsin this morning is 
maintaining 30.7 inch ridging over lake superior today. ridging over 
the lake weakens to 30.3 inches on sunday as a 29.6 inch low moves 
northeast along the atlantic coast. a 29.8 inch clipper low crosses 
the lake monday night into tuesday. another clipper low, much weaker 
at 30.1 inches, grazes the northeast portion of the lake on 
wednesday. a strong high pressure descending from the canadian 
prairie around 30.7 inches late next week brings ridging back to 
lake superior, likely persisting into next weekend.



lsz162-242100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est sat jan 24 2026 /900 am cst sat jan 24 2026/

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 241501
glfls 
expires:202601242100;;449296

open lake forecast for lake superior
national weather service marquette mi
1000 am est sat jan 24 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...

30.8 inch high pressure centered over wisconsin this morning is 
maintaining 30.7 inch ridging over lake superior today. ridging over 
the lake weakens to 30.3 inches on sunday as a 29.6 inch low moves 
northeast along the atlantic coast. a 29.8 inch clipper low crosses 
the lake monday night into tuesday. another clipper low, much weaker 
at 30.1 inches, grazes the northeast portion of the lake on 
wednesday. a strong high pressure descending from the canadian 
prairie around 30.7 inches late next week brings ridging back to 
lake superior, likely persisting into next weekend.



lsz263-242100-
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 sat jan 24 2026

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

note, wave height forecasts are for ice free areas.

$$