fzus63 kmqt 162001
glfls 
expires:202607170800;;081204

open lake forecast for lake superior
national weather service marquette mi
400 pm edt thu jul 16 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 high pressure persists over lake superior into friday 
while gradually shifting east towards the st. lawrence seaway. low 
pressure passing through the northern plains looks to traverse the 
the lake at around 29.7 inches friday evening into saturday morning. 
weak ridging of 29.9 to 30.0 inches returns late saturday and 
remains through sunday. a strong low ranging from 29.3 to 29.5 
inches over northern ontario looks to bring 29.6 inch troughing over 
lake superior on monday.




lsz162-170800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt thu jul 16 2026 /300 pm cdt thu jul 16 2026/

...dense smoke advisory in effect until 8 pm edt /7 pm cdt/
friday...

.late this afternoon...northeast winds 5 to 15 knots. smoke.
waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots backing northeast after
midnight. smoke. a chance of showers and a slight chance of
thunderstorms after midnight. waves calm to 2 feet. 
.friday...northeast winds 5 to 15 knots veering east in the
afternoon, then backing northeast late. smoke. a chance of
showers and a slight chance of thunderstorms. waves calm to
2 feet. 
.friday night...northeast winds 5 to 15 knots backing northwest
after midnight, then becoming west 10 to 20 knots late. a chance
of showers and a slight chance of thunderstorms through midnight.
smoke. waves calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots backing southwest by
mid afternoon. areas of smoke through early afternoon. waves calm
to 2 feet. 
.saturday night...west winds 5 to 15 knots. waves calm to 2 feet.
.sunday...southwest winds 5 to 15 knots backing south by mid
afternoon. waves calm to 2 feet. 
.sunday night...southwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of showers after midnight.
waves calm to 2 feet. 
.monday...southwest winds 15 to 25 knots veering northwest. a
chance of showers. waves building to 2 to 4 feet, then subsiding
to 1 to 3 feet. 
.tuesday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 162001
glfls 
expires:202607170800;;081205

open lake forecast for lake superior
national weather service marquette mi
400 pm edt thu jul 16 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 high pressure persists over lake superior into friday 
while gradually shifting east towards the st. lawrence seaway. low 
pressure passing through the northern plains looks to traverse the 
the lake at around 29.7 inches friday evening into saturday morning. 
weak ridging of 29.9 to 30.0 inches returns late saturday and 
remains through sunday. a strong low ranging from 29.3 to 29.5 
inches over northern ontario looks to bring 29.6 inch troughing over 
lake superior on monday.




lsz263-170800-
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 pm edt thu jul 16 2026

...dense smoke advisory in effect until 8 pm edt friday...

.late this afternoon...northeast winds 5 to 15 knots. smoke.
waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots. smoke. a chance of showers
and a slight chance of thunderstorms after midnight. waves calm
to 2 feet. 
.friday...east winds 5 to 15 knots. smoke. a chance of showers
and thunderstorms. waves calm to 2 feet. 
.friday night...north winds 5 to 15 knots backing northwest late.
smoke. a chance of showers and thunderstorms. waves calm to
2 feet. 
.saturday...northwest winds 5 to 15 knots backing west by mid
afternoon. areas of smoke through early afternoon. waves calm to
2 feet. 
.saturday night...west winds 5 to 15 knots backing southwest
after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots backing south by mid
afternoon. waves calm to 2 feet. 
.sunday night...south winds 10 to 20 knots becoming southwest
20 to 30 knots after midnight. a chance of showers after
midnight. waves building to 2 to 4 feet. 
.monday...southwest winds 20 to 30 knots veering northwest. a
chance of showers. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.tuesday...northwest winds 20 to 30 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$