fzus63 kmqt 020801
glfls 
expires:202607022000;;269057

open lake forecast for lake superior
national weather service marquette mi
400 am edt thu jul 2 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 broad 29.6 inch low over ontario and quebec will consolidate over 
northern quebec by this evening. tonight, 30.1 inch high pressure 
develops over the southern appalachian range with 30.0 inch high 
pressure over mostly northern manitoba while broad troughing is in 
the lee of the rockies. friday, the manitoba high builds to 30.1 and 
expands over western hudson bay and far northwestern ontario. the 
high builds to 30.2 inches over hudson bay saturday and into sunday 
as a weak 29.9 inch low passes through the southern great lakes 
basin. monday, the high quickly becomes dislodged to the southeast 
by a 29.7 inch low over northern manitoba, sending the high over 
lake superior, northern ontario, and quebec. by tuesday, the high 
shifts to new england while the low moves into hudson bay.




lsz263-022000-
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 thu jul 2 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight, then becoming northeast less than 10 knots late.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.friday...northeast winds 5 to 15 knots veering east late. waves
calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a chance of showers. waves calm to
2 feet. 
.saturday night...northeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots backing west. waves calm
to 2 feet. 
.monday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 020801
glfls 
expires:202607022000;;269056

open lake forecast for lake superior
national weather service marquette mi
400 am edt thu jul 2 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 broad 29.6 inch low over ontario and quebec will consolidate over 
northern quebec by this evening. tonight, 30.1 inch high pressure 
develops over the southern appalachian range with 30.0 inch high 
pressure over mostly northern manitoba while broad troughing is in 
the lee of the rockies. friday, the manitoba high builds to 30.1 and 
expands over western hudson bay and far northwestern ontario. the 
high builds to 30.2 inches over hudson bay saturday and into sunday 
as a weak 29.9 inch low passes through the southern great lakes 
basin. monday, the high quickly becomes dislodged to the southeast 
by a 29.7 inch low over northern manitoba, sending the high over 
lake superior, northern ontario, and quebec. by tuesday, the high 
shifts to new england while the low moves into hudson bay.




lsz162-022000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt thu jul 2 2026 /300 am cdt thu jul 2 2026/

.early this morning...southwest winds 10 to 20 knots. waves calm
to 2 feet. 
.today...southwest winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.tonight...west winds 5 to 15 knots veering north after midnight,
then veering northeast late. waves calm to 2 feet. 
.friday...northeast winds 5 to 15 knots. a slight chance of
showers. a slight chance of thunderstorms by mid afternoon. waves
calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots. a chance of showers.
waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots backing north. waves calm
to 2 feet. 
.monday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 

$$