fzus63 kmqt 090202
glfls 
expires:202507090800;;118659

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt tue jul 8 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 weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through much of this week. that being said, a weak 29.9 inch low 
continues over the remainder of the upper great lakes the rest of 
tonight. ridging is eventually pushed east by a 29.7 inch phasing 
lows over the canadian prairies and northern plains on friday, with 
the phased low deepening to 29.6 inches over northern ontario by 
saturday as 29.7 inch troughing moves over lake superior. weak 
ridging of at least 29.8 inches then returns to lake superior sunday 
morning.



lsz162-090800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1002 pm edt tue jul 8 2025 /902 pm cdt tue jul 8 2025/

.rest of tonight...northeast winds 5 to 15 knots backing
northwest late. patchy fog after midnight. waves calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest in
the afternoon, then backing east late. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots becoming east
less than 10 knots after midnight, then increasing to 5 to
15 knots late. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots veering east
after midnight. a chance of showers and a slight chance of
thunderstorms after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots becoming northeast 10 to
20 knots by mid afternoon. a chance of showers through early
afternoon, then showers likely and a chance of thunderstorms by
mid afternoon. waves calm to 2 feet. 
.friday night...north winds 10 to 20 knots backing northwest
after midnight. showers likely through midnight. a chance of
thunderstorms. a chance of showers after midnight. waves calm to
2 feet. 
.saturday...west winds 10 to 20 knots. a chance of showers. waves
calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots veering west. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 090202
glfls 
expires:202507090800;;118660

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt tue jul 8 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 weak 30.0 to 30.1 inch ridge stays in place over lake superior 
through much of this week. that being said, a weak 29.9 inch low 
continues over the remainder of the upper great lakes the rest of 
tonight. ridging is eventually pushed east by a 29.7 inch phasing 
lows over the canadian prairies and northern plains on friday, with 
the phased low deepening to 29.6 inches over northern ontario by 
saturday as 29.7 inch troughing moves over lake superior. weak 
ridging of at least 29.8 inches then returns to lake superior sunday 
morning.



lsz263-090800-
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-
1002 pm edt tue jul 8 2025

.rest of tonight...northeast winds less than 10 knots backing
north after midnight. patchy fog after midnight. waves calm to
2 feet. 
.wednesday...northwest winds less than 10 knots becoming west
5 to 15 knots late. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots becoming southwest
less than 10 knots after midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots veering south after
midnight. a slight chance of showers after midnight. waves calm
to 2 feet. 
.friday...south winds 5 to 15 knots backing east by mid
afternoon. showers likely by mid afternoon. waves calm to 2 feet.
.friday night...northeast winds 5 to 15 knots backing west after
midnight. showers likely through midnight. a chance of
thunderstorms. a chance of showers after midnight. waves calm to
2 feet. 
.saturday...west winds 10 to 20 knots becoming southwest 5 to
15 knots. a chance of showers. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$