fzus63 kmqt 130801
glfls 
expires:202606132000;;663212

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat jun 13 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 trough will move through lake superior through this 
afternoon, followed by a 29.7 inch trough sunday afternoon and 
evening. weak ridging of 29.7 inches follows into monday, but 
another 29.7 inch trough moves through the lake late monday into 
tuesday. troughing of around 29.6 inches returns by late tuesday 
before a low of 29.4 inches moves through the great lakes region 
wedneday night and thursday. 




lsz162-132000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt sat jun 13 2026 /300 am cdt sat jun 13 2026/

.early this morning...southwest winds 15 to 25 knots. waves 2 to
4 feet. 
.today...west winds 20 to 30 knots diminishing to 15 to 25 knots
in the afternoon. a slight chance of showers through early
afternoon. waves subsiding to 1 to 3 feet. 
.tonight...west winds 10 to 20 knots increasing to 15 to 25 knots
after midnight. waves subsiding to calm to 2 feet. 
.sunday...west winds 15 to 25 knots. waves building to 1 to
3 feet. 
.sunday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.monday...west winds 10 to 20 knots. waves building to 1 to
3 feet. 
.monday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.tuesday...west winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 130801
glfls 
expires:202606132000;;663213

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat jun 13 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 trough will move through lake superior through this 
afternoon, followed by a 29.7 inch trough sunday afternoon and 
evening. weak ridging of 29.7 inches follows into monday, but 
another 29.7 inch trough moves through the lake late monday into 
tuesday. troughing of around 29.6 inches returns by late tuesday 
before a low of 29.4 inches moves through the great lakes region 
wedneday night and thursday. 




lsz263-132000-
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 jun 13 2026

.early this morning...southwest winds 20 to 30 knots. waves 3 to
5 feet occasionally to 7 feet. 
.today...west winds 20 to 30 knots diminishing to 15 to 25 knots
late. a chance of showers through early afternoon. waves building
to 3 to 6 feet occasionally to 8 feet, then subsiding to 2 to
4 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves 2 to 4 feet. 
.sunday...west winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.sunday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.monday...west winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.monday night...southwest winds 5 to 15 knots veering west after
midnight. waves subsiding to calm to 2 feet. 
.tuesday...west winds 5 to 15 knots backing southwest. waves calm
to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. a chance
of showers. waves calm to 2 feet. 

$$