fzus63 kmqt 081500
glfls 
expires:202601082100;;002695

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu jan 8 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 29.6 inch low moves from manitoba to northern ontario today while 
a 29.4 inch low lifts into the upper mississippi river valley. this 
low will move through northern lake michigan tonight while the low 
to the north reaches james bay. both press into quebec friday as 
30.1 inch ridging builds over the upper midwest. friday night 
through saturday, two lows (one coming from manitoba and another 
from the lower mississippi valley) will merge, resulting in a low of 
at least 29.8 inches near southern ontario. this low will lift into 
quebec near 29.6 inches sunday afternoon as a 30.6 inch high spreads 
across the central plains. the high extends a 30.1 inch ridge over 
the lake sunday night ahead of a 29.8 inch trough transiting the 
lake monday.



lsz162-082100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est thu jan 8 2026 /900 am cst thu jan 8 2026/

.rest of today...southwest winds 5 to 15 knots veering west by
mid afternoon. patchy fog late in the morning. waves calm to
2 feet. 
.tonight...north winds 5 to 15 knots increasing to 15 to
25 knots. a slight chance of rain showers in the evening. waves
building to 2 to 4 feet. 
.friday...north winds 15 to 25 knots becoming northwest 5 to
15 knots by late morning, then backing west by mid afternoon.
waves subsiding to calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots backing south after
midnight. a slight chance of snow showers after midnight. waves
calm to 2 feet. 
.saturday...northwest winds 10 to 20 knots becoming north 15 to
25 knots in the afternoon. a chance of snow showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.saturday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...west winds 15 to 25 knots becoming southwest 20 to
30 knots. waves subsiding to 1 to 3 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.monday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 081500
glfls 
expires:202601082100;;002696

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu jan 8 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 29.6 inch low moves from manitoba to northern ontario today while 
a 29.4 inch low lifts into the upper mississippi river valley. this 
low will move through northern lake michigan tonight while the low 
to the north reaches james bay. both press into quebec friday as 
30.1 inch ridging builds over the upper midwest. friday night 
through saturday, two lows (one coming from manitoba and another 
from the lower mississippi valley) will merge, resulting in a low of 
at least 29.8 inches near southern ontario. this low will lift into 
quebec near 29.6 inches sunday afternoon as a 30.6 inch high spreads 
across the central plains. the high extends a 30.1 inch ridge over 
the lake sunday night ahead of a 29.8 inch trough transiting the 
lake monday.



lsz263-082100-
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 8 2026

.rest of today...southwest winds 5 to 15 knots veering west by
mid afternoon. patchy fog late in the morning. waves calm to
2 feet. 
.tonight...north winds 5 to 15 knots increasing to 20 to
30 knots. patchy fog in the evening. a slight chance of rain and
snow showers. waves building to 3 to 6 feet occasionally to
8 feet. 
.friday...north winds 20 to 30 knots becoming northwest 15 to
25 knots by late morning, then becoming west 5 to 15 knots by mid
afternoon. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 1 to 3 feet. 
.friday night...southwest winds 5 to 15 knots backing south after
midnight. waves subsiding to calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots becoming northeast
20 to 30 knots in the afternoon. a chance of snow showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.saturday night...north gales to 35 knots diminishing to 20 to
30 knots after midnight. freezing spray. waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.sunday...west winds 20 to 30 knots. waves subsiding to 1 to
3 feet, then building to 5 to 8 feet occasionally to 10 feet. 
.monday...west winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$