fzus63 kmqt 302101
glfls 
expires:202601310900;;812080

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri jan 30 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 30.9 inches sags south today, reaching the central 
plains at 30.8 inches by saturday morning. throughout saturday, a 
29.8 inch low will move from saskatchewan to southern manitoba, 
weakening to a 30.0 inch remnant trough by the time it reaches lake 
superior sunday evening. as the trough further weakens to 30.1 
inches over georgian bay monday, a 30.4 inch high will move over 
northwest ontario. this high builds to 30.5 inches tuesday as it 
settles over the great lakes basin through wednesday.



lsz162-310900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est fri jan 30 2026 /300 pm cst fri jan 30 2026/

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 302101
glfls 
expires:202601310900;;812081

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri jan 30 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 30.9 inches sags south today, reaching the central 
plains at 30.8 inches by saturday morning. throughout saturday, a 
29.8 inch low will move from saskatchewan to southern manitoba, 
weakening to a 30.0 inch remnant trough by the time it reaches lake 
superior sunday evening. as the trough further weakens to 30.1 
inches over georgian bay monday, a 30.4 inch high will move over 
northwest ontario. this high builds to 30.5 inches tuesday as it 
settles over the great lakes basin through wednesday.



lsz263-310900-
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 30 2026

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

note, wave height forecasts are for ice free areas.

$$