fzus63 kmqt 101402
glfls 
expires:202605102000;;328701

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun may 10 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 ridging continues to rise over lake superior today as 
a 30.2 inch high over the canadian prairies expands eastward. the 
high shifts southeast into the upper great lakes at 30.3 inches 
tonight and monday morning. ridging from the high persists at around 
30.2 inches over lake superior through monday evening before 
eventually being replaced by a 29.7 inch clipper descending over 
western lake superior on tuesday. as the clipper continues eastward 
tuesday night into wednesday, 30.1 inch high pressure ridging moves 
back over lake superior late in the day on wednesday. this ridging 
is pressed southeast to the lower great lakes on thursday while a 
29.4 inch low emanates off the northern rockies.



lsz162-102000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt sun may 10 2026 /901 am cdt sun may 10 2026/

.rest of today...northwest winds 10 to 20 knots becoming west
5 to 15 knots in the afternoon. waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots veering north after
midnight, then diminishing to less than 10 knots late. waves calm
to 2 feet. 
.monday...north winds less than 10 knots becoming southeast 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. rain showers likely after midnight.
waves building to 1 to 3 feet. 
.tuesday...southeast winds 10 to 20 knots veering northwest by
mid afternoon. rain showers. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.wednesday...northwest winds 5 to 15 knots backing southwest.
waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots becoming south 10 to
20 knots. a chance of rain showers. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 101402
glfls 
expires:202605102000;;328702

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun may 10 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 ridging continues to rise over lake superior today as 
a 30.2 inch high over the canadian prairies expands eastward. the 
high shifts southeast into the upper great lakes at 30.3 inches 
tonight and monday morning. ridging from the high persists at around 
30.2 inches over lake superior through monday evening before 
eventually being replaced by a 29.7 inch clipper descending over 
western lake superior on tuesday. as the clipper continues eastward 
tuesday night into wednesday, 30.1 inch high pressure ridging moves 
back over lake superior late in the day on wednesday. this ridging 
is pressed southeast to the lower great lakes on thursday while a 
29.4 inch low emanates off the northern rockies.



lsz263-102000-
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-
1001 am edt sun may 10 2026

.rest of today...northwest winds 5 to 15 knots backing west in
the afternoon. a chance of rain showers by mid afternoon. waves
calm to 2 feet. 
.tonight...west winds 5 to 15 knots veering north after midnight,
then diminishing to less than 10 knots late. waves calm to
2 feet. 
.monday...northwest winds less than 10 knots becoming south 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots. a chance of rain
showers, possibly mixed with snow after midnight. waves building
to 2 to 4 feet. 
.tuesday...southeast winds 10 to 20 knots veering west by mid
afternoon. rain showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...northwest winds 10 to 20 knots veering north
after midnight. waves subsiding to 2 to 4 feet, then building to
3 to 5 feet occasionally to 7 feet. 
.wednesday...northwest winds 10 to 20 knots becoming west 5 to
15 knots. waves subsiding to calm to 2 feet. 
.thursday...south winds 5 to 15 knots increasing to 15 to
25 knots. a chance of rain showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 

$$