fzus63 kmqt 051401
glfls 
expires:202607052000;;456776

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jul 5 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 30.2 inch high over the hudson bay will push southeast into quebec 
through monday morning, extending a 30.1 inch ridge over lake 
superior. meanwhile, low pressure will move from northern 
saskatchewan to hudson bay, deepening to 29.5 inches as it reaches 
hudson bay on tuesday morning. as the low departs the hudson bay, 
moving east, it will extend a 29.8 inch trough over lake superior on 
wednesday. thereafter high pressure at 29.9 inches builds over the 
upper great lakes for thursday and friday.




lsz162-052000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt sun jul 5 2026 /900 am cdt sun jul 5 2026/

.rest of today...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...northeast winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.monday...east winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon, then backing north late. waves calm to
2 feet. 
.monday night...north winds less than 10 knots becoming southwest
5 to 15 knots after midnight. a slight chance of showers and
thunderstorms. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. a slight chance of
showers. a slight chance of thunderstorms by mid afternoon. waves
calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots veering north
after midnight. a chance of showers and thunderstorms. waves calm
to 2 feet. 
.wednesday...northeast winds 5 to 15 knots backing north. showers
likely. a chance of thunderstorms. a chance of showers. waves
calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots backing north. waves
calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202607052000;;456777

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jul 5 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 30.2 inch high over the hudson bay will push southeast into quebec 
through monday morning, extending a 30.1 inch ridge over lake 
superior. meanwhile, low pressure will move from northern 
saskatchewan to hudson bay, deepening to 29.5 inches as it reaches 
hudson bay on tuesday morning. as the low departs the hudson bay, 
moving east, it will extend a 29.8 inch trough over lake superior on 
wednesday. thereafter high pressure at 29.9 inches builds over the 
upper great lakes for thursday and friday.




lsz263-052000-
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-
1000 am edt sun jul 5 2026

.rest of today...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...east winds 5 to 15 knots diminishing to less than
10 knots late. waves calm to 2 feet. 
.monday...east winds less than 10 knots. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering southwest after
midnight. a slight chance of showers and thunderstorms after
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. a slight chance of
showers. a slight chance of thunderstorms by mid afternoon. waves
calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots becoming north
less than 10 knots after midnight. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots backing north. showers
likely. a chance of thunderstorms. a chance of showers. waves
calm to 2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$