fzus63 kmqt 290801
glfls 
expires:202604292000;;717280

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed apr 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...

weak ridging of 30.0 inches over lake superior this morning persists 
between 30.0 and 30.1 inches through early saturday as a 30.3 inch 
high slowly shifts east from the canadian prairies to northwest 
ontario and hudson bay. weak troughing of 29.8 inches moves over the 
lake saturday night and strengthens to 29.5 inches through monday as 
the parent low pressure deepens to 29.4 inches over northern ontario 
and james bay.



lsz162-292000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt wed apr 29 2026 /301 am cdt wed apr 29 2026/

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...northwest winds 5 to 15 knots backing southwest in the
afternoon, then veering west late. a slight chance of rain
showers. a chance of snow showers by mid afternoon. waves calm to
2 feet. 
.tonight...northwest winds 5 to 15 knots veering north after
midnight. a slight chance of rain and snow showers through
midnight. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots backing southwest in the
afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 5 to 15 knots veering north
after midnight. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...southwest winds 5 to 15 knots veering west. waves
calm to 2 feet. 
.sunday...west winds 5 to 15 knots veering northwest. waves calm
to 2 feet. 

$$

fzus63 kmqt 290801
glfls 
expires:202604292000;;717281

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed apr 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...

weak ridging of 30.0 inches over lake superior this morning persists 
between 30.0 and 30.1 inches through early saturday as a 30.3 inch 
high slowly shifts east from the canadian prairies to northwest 
ontario and hudson bay. weak troughing of 29.8 inches moves over the 
lake saturday night and strengthens to 29.5 inches through monday as 
the parent low pressure deepens to 29.4 inches over northern ontario 
and james bay.



lsz263-292000-
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 am edt wed apr 29 2026

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...northwest winds 5 to 15 knots backing west in the
afternoon, then diminishing to less than 10 knots late. a slight
chance of rain showers. a slight chance of snow showers by mid
afternoon. waves calm to 2 feet. 
.tonight...north winds less than 10 knots increasing to 5 to
15 knots after midnight. a slight chance of rain and snow showers
through midnight. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots backing west late. waves
calm to 2 feet. 
.thursday night...northwest winds 5 to 15 knots veering north
after midnight. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots veering northwest after
midnight. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots veering west. waves
calm to 2 feet. 
.sunday...west winds 5 to 15 knots veering northwest. waves calm
to 2 feet. 

$$