fzus63 kmqt 102002
glfls 
expires:202605110800;;343844

open lake forecast for lake superior
national weather service marquette mi
401 pm 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... 

a 30.2 inch high over manitoba this afternoon 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 thursday into friday while a 29.4 
inch low emanates off the northern rockies. troughing of 29.7 inches 
moves over the lake on friday.



lsz162-110800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt sun may 10 2026 /301 pm cdt sun may 10 2026/

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...west winds 5 to 15 knots veering north after midnight,
then veering northeast late. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots veering southeast 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 through early afternoon, then a
chance of rain showers by mid afternoon. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 10 to 20 knots. a chance of rain
showers. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots becoming south less
than 10 knots after midnight. 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. 
.friday...east winds 10 to 20 knots backing northeast. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 

$$

fzus63 kmqt 102002
glfls 
expires:202605110800;;343845

open lake forecast for lake superior
national weather service marquette mi
401 pm 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... 

a 30.2 inch high over manitoba this afternoon 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 thursday into friday while a 29.4 
inch low emanates off the northern rockies. troughing of 29.7 inches 
moves over the lake on friday.



lsz263-110800-
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-
401 pm edt sun may 10 2026

.late this afternoon...west winds 5 to 15 knots. scattered rain
showers. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots becoming north less than
10 knots after midnight. waves calm to 2 feet. 
.monday...north winds less than 10 knots becoming south 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots increasing to 10 to
20 knots late. a chance of rain showers after midnight. waves
building to 2 to 4 feet. 
.tuesday...southeast winds 10 to 20 knots veering west by mid
afternoon. rain showers through early afternoon, then a chance of
rain showers by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...northwest winds 10 to 20 knots. a chance of rain
showers. 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 by mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots becoming south less
than 10 knots after midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots increasing to 10 to
20 knots. a chance of rain showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.friday...east winds 10 to 20 knots becoming northeast 5 to
15 knots. waves subsiding to 1 to 3 feet. 

$$