fzus63 kmqt 110801
glfls 
expires:202604112000;;179052

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat apr 11 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...

30.4 inch high pressure settles over the great lakes today. a 29.3 
inch low lifts through the northern plains on sunday while the high 
strengthens to 30.5 inches and pushes off of the eastern seaboard 
into the atlantic. the low pushes east through the upper great lakes 
at 29.4 inches sunday night and moves into northern quebec by 
monday. another low will take shape over the central plains on 
monday, deepening to 29.5 inches on tuesday with a weak 29.8 inch 
trough extending through the upper great lakes.



lsz162-112000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt sat apr 11 2026 /300 am cdt sat apr 11 2026/

.early this morning...west winds less than 10 knots. waves calm
to 2 feet. 
.today...east winds less than 10 knots increasing to 5 to
15 knots in the afternoon. a chance of rain showers by mid
afternoon. waves calm to 2 feet. 
.tonight...east winds 10 to 20 knots. rain showers and a slight
chance of thunderstorms. waves building to 2 to 4 feet. 
.sunday...east winds 10 to 20 knots backing northeast late. rain
showers likely. a chance of thunderstorms by mid afternoon. waves
subsiding to calm to 2 feet. 
.sunday night...west winds 10 to 20 knots. a chance of rain
showers and a slight chance of thunderstorms through midnight.
waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.monday night...northeast winds 10 to 20 knots. rain showers
likely. waves building to 3 to 6 feet occasionally to 8 feet. 
.tuesday...northeast winds 10 to 20 knots. a chance of rain
showers. waves 3 to 6 feet occasionally to 8 feet. 
.wednesday...west winds 5 to 15 knots veering northeast. a chance
of rain showers. waves subsiding to calm to 2 feet, then building
to 1 to 3 feet. 

$$

fzus63 kmqt 110801
glfls 
expires:202604112000;;179053

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat apr 11 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...

30.4 inch high pressure settles over the great lakes today. a 29.3 
inch low lifts through the northern plains on sunday while the high 
strengthens to 30.5 inches and pushes off of the eastern seaboard 
into the atlantic. the low pushes east through the upper great lakes 
at 29.4 inches sunday night and moves into northern quebec by 
monday. another low will take shape over the central plains on 
monday, deepening to 29.5 inches on tuesday with a weak 29.8 inch 
trough extending through the upper great lakes.



lsz263-112000-
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 am edt sat apr 11 2026

.early this morning...southwest winds less than 10 knots. waves
calm to 2 feet. 
.today...south winds less than 10 knots backing southeast in the
afternoon, then becoming east 5 to 15 knots late. a slight chance
of rain showers by mid afternoon. waves calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots. a chance of rain
showers and a slight chance of thunderstorms. waves building to
2 to 4 feet. 
.sunday...southeast winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then becoming south 10 to 20 knots
late. a chance of rain showers through early afternoon, then rain
showers likely and a chance of thunderstorms by mid afternoon.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.sunday night...southwest winds 10 to 20 knots veering west after
midnight. a slight chance of thunderstorms through midnight. a
chance of rain showers. waves subsiding to 1 to 3 feet. 
.monday...northwest winds 10 to 20 knots veering east by mid
afternoon. waves subsiding to calm to 2 feet. 
.monday night...east winds 20 to 30 knots. a chance of rain
showers through midnight. rain showers likely after midnight.
waves building to 3 to 6 feet occasionally to 8 feet. 
.tuesday...northeast winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of rain showers. waves 3 to 6 feet
occasionally to 8 feet. 
.wednesday...west winds 10 to 20 knots becoming south 5 to
15 knots. a chance of rain showers. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 

$$