fzus63 kmqt 080801
glfls 
expires:202606082000;;376867

open lake forecast for lake superior
national weather service marquette mi
400 am edt mon jun 8 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 lingers over lake superior today. 
pressure falls to around 29.9 inches over the lake on tuesday as 
30.2 inch high pressure moves off the mid atlantic coast and 29.5 
inch troughing over the rockies deepens to 29.2 inches over the 
northern plains. pressure continues to deepen to around 29.5 inches 
over the lake through wednesday as the low tracks eastward into nw 
ontario at 29.2 inches by wednesday evening. pressure holds at 
around 29.6 inches over the lake through the end of the week as 
another colorado low lifts into the great lakes at around 29.5 
inches on thursday. 




lsz162-082000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt mon jun 8 2026 /300 am cdt mon jun 8 2026/

.early this morning...east winds 10 to 20 knots. a chance of
showers and a slight chance of thunderstorms. waves 1 to 3 feet
subsiding to calm to 2 feet. 
.today...east winds 10 to 20 knots backing northeast in the
afternoon. a chance of showers and a slight chance of
thunderstorms. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots backing northeast after
midnight, then diminishing to less than 10 knots late. a slight
chance of showers and thunderstorms through midnight. waves calm
to 2 feet. 
.tuesday...east winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots. a chance of
showers and a slight chance of thunderstorms after midnight.
waves calm to 2 feet. 
.wednesday...east winds 10 to 20 knots. a chance of showers
through early afternoon. a chance of thunderstorms. showers by
mid afternoon. waves building to 1 to 3 feet, then subsiding to
calm to 2 feet. 
.wednesday night...east winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. showers likely and a chance of
thunderstorms through midnight. waves building to 2 to 4 feet. 
.thursday...southwest winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.friday...southwest winds 20 to 30 knots becoming west 10 to
20 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 080801
glfls 
expires:202606082000;;376868

open lake forecast for lake superior
national weather service marquette mi
400 am edt mon jun 8 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 lingers over lake superior today. 
pressure falls to around 29.9 inches over the lake on tuesday as 
30.2 inch high pressure moves off the mid atlantic coast and 29.5 
inch troughing over the rockies deepens to 29.2 inches over the 
northern plains. pressure continues to deepen to around 29.5 inches 
over the lake through wednesday as the low tracks eastward into nw 
ontario at 29.2 inches by wednesday evening. pressure holds at 
around 29.6 inches over the lake through the end of the week as 
another colorado low lifts into the great lakes at around 29.5 
inches on thursday. 




lsz263-082000-
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 mon jun 8 2026

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

$$