fzus63 kmqt 012002
glfls 
expires:202507020800;;712414

open lake forecast for lake superior
national weather service marquette mi
402 pm edt tue jul 1 2025

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 29.8 inch trough remains over lake superior tonight as the lake 
becomes sandwiched between a 30.0 inch high building over the 
central plains and a low over quebec deepening from 29.5 to 29.3 
inches. 30.0 inch ridging then passes southeast over the upper great 
lakes thursday into friday. then, low pressure emerging from the 
northern rockies into central canada brings a 29.6 inch trough 
through lake superior saturday into sunday.



lsz162-020800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
402 pm edt tue jul 1 2025 /302 pm cdt tue jul 1 2025/

.late this afternoon...southwest winds 15 to 25 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
late. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots becoming southwest 10 to
20 knots in the afternoon. a chance of showers and a slight
chance of thunderstorms. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots veering northeast
after midnight. a slight chance of showers through midnight.
waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a chance of showers and thunderstorms. waves
calm to 2 feet. 
.friday night...south winds 10 to 20 knots veering southwest
after midnight. a chance of showers through midnight. a chance of
thunderstorms. showers likely after midnight. waves calm to
2 feet. 
.saturday...southwest winds 10 to 20 knots veering north.
showers. a chance of thunderstorms. a chance of showers. waves
calm to 2 feet. 
.sunday...north winds 10 to 20 knots becoming northwest 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 012002
glfls 
expires:202507020800;;712415

open lake forecast for lake superior
national weather service marquette mi
402 pm edt tue jul 1 2025

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 29.8 inch trough remains over lake superior tonight as the lake 
becomes sandwiched between a 30.0 inch high building over the 
central plains and a low over quebec deepening from 29.5 to 29.3 
inches. 30.0 inch ridging then passes southeast over the upper great 
lakes thursday into friday. then, low pressure emerging from the 
northern rockies into central canada brings a 29.6 inch trough 
through lake superior saturday into sunday.



lsz263-020800-
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-
402 pm edt tue jul 1 2025

.late this afternoon...southwest winds 15 to 25 knots. a slight
chance of showers. waves 2 to 4 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing southwest late. a
slight chance of showers. a slight chance of thunderstorms by mid
afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots backing southeast by mid
afternoon. a chance of showers. waves calm to 2 feet. 
.friday night...south winds 10 to 20 knots veering southwest
after midnight. a chance of showers through midnight. showers
likely after midnight. waves building to 1 to 3 feet. 
.saturday...southwest winds 5 to 15 knots veering north. showers.
a chance of thunderstorms. a chance of showers. waves subsiding
to calm to 2 feet. 
.sunday...north winds 5 to 15 knots backing northwest. waves calm
to 2 feet. 

$$