fzus63 kmqt 060201
glfls 
expires:202607060800;;486244

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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... 

30.1 inch ridging remains over the lake tonight into monday, 
extending from 30.2 inch high pressure that becomes centered over 
quebec into the early morning hours. 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.




lsz162-060800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt sun jul 5 2026 /900 pm cdt sun jul 5 2026/

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

$$

fzus63 kmqt 060201
glfls 
expires:202607060800;;486245

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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... 

30.1 inch ridging remains over the lake tonight into monday, 
extending from 30.2 inch high pressure that becomes centered over 
quebec into the early morning hours. 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.




lsz263-060800-
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 pm edt sun jul 5 2026

.rest of 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 after midnight. waves calm
to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. a chance of showers. a
slight chance of thunderstorms by mid afternoon. waves calm to
2 feet. 
.tuesday night...southwest winds 5 to 15 knots diminishing to
less than 10 knots after midnight. a slight chance of showers
through midnight. a slight chance of thunderstorms. showers
likely after midnight. waves calm to 2 feet. 
.wednesday...northeast winds less than 10 knots increasing to
5 to 15 knots by mid afternoon. showers likely through early
afternoon. a chance of showers by mid afternoon. waves calm to
2 feet. 
.wednesday night...north winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots becoming south less
than 10 knots. waves calm to 2 feet. 
.friday...southeast winds 5 to 15 knots veering southwest. waves
calm to 2 feet. 

$$