fzus63 kmqt 291501
glfls 
expires:202601292100;;740809

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu jan 29 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...

remnant 30.2 inch troughing over eastern lake superior this morning 
continues to weaken today as 30.5 inch high pressure over manitoba 
and the dakotas strengthens to 30.9 inches by friday morning. this 
will send 30.6 inch ridging over the lake by friday evening. high 
pressure shifts southeast into the lower mississippi valley through 
the weekend while weakening to 30.5 inches as a 29.9 inch low moves 
into northern minnesota. the low moves over lake superior sunday 
night through monday morning at near 30.0 inches before being 
replaced by a 30.5 inch high tuesday morning.



lsz162-292100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est thu jan 29 2026 /900 am cst thu jan 29 2026/

.rest of today...north winds 10 to 20 knots. scattered snow
showers. waves calm to 2 feet building to 1 to 3 feet. 
.tonight...north winds 10 to 20 knots becoming northeast 15 to
25 knots by midnight, then backing north late. scattered snow
showers. waves building to 3 to 5 feet occasionally to 7 feet. 
.friday...north winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.friday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots backing southwest in the
afternoon. waves calm to 2 feet. 
.saturday night...southwest winds 10 to 20 knots. waves building
to 1 to 3 feet. 
.sunday...southwest winds 10 to 20 knots veering northwest. snow
showers likely. waves subsiding to calm to 2 feet. 
.monday...north winds 5 to 15 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 291501
glfls 
expires:202601292100;;740810

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu jan 29 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...

remnant 30.2 inch troughing over eastern lake superior this morning 
continues to weaken today as 30.5 inch high pressure over manitoba 
and the dakotas strengthens to 30.9 inches by friday morning. this 
will send 30.6 inch ridging over the lake by friday evening. high 
pressure shifts southeast into the lower mississippi valley through 
the weekend while weakening to 30.5 inches as a 29.9 inch low moves 
into northern minnesota. the low moves over lake superior sunday 
night through monday morning at near 30.0 inches before being 
replaced by a 30.5 inch high tuesday morning.



lsz263-292100-
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 thu jan 29 2026

...heavy freezing spray warning in effect from 7 pm est this
evening through friday morning...

.rest of today...north winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. scattered snow showers. waves 1 to
3 feet building to 2 to 4 feet. 
.tonight...north winds 15 to 25 knots diminishing to 10 to
20 knots late. heavy freezing spray. scattered snow showers.
waves building to 3 to 6 feet occasionally to 8 feet. 
.friday...north winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. a chance of snow showers. waves subsiding to
2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet.
.friday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. a slight chance of snow showers. 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 in
the afternoon. waves subsiding to calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.sunday...southwest winds 10 to 20 knots veering west. a chance
of snow showers. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.monday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$