fzus63 kmqt 140801
glfls 
expires:202607142000;;941714

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jul 14 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... 

the 30.1 inch ridging persists until friday morning. expect the 
ridging to retreat east towards the st. lawrence seaway and to 
weaken with time on friday. a low pressure of at least 29.8 inches 
could impact the upper great lakes this weekend, although 
uncertainty remains high on the track and strength of it. 




lsz162-142000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt tue jul 14 2026 /300 am cdt tue jul 14 2026/

.early this morning...southwest winds 15 to 25 knots. waves 2 to
4 feet. 
.today...southwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.tonight...west winds 10 to 20 knots becoming north 5 to 15 knots
after midnight, then backing northwest late. smoke. waves
subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots veering east late.
areas of smoke. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots backing
northwest after 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 10 to 20 knots diminishing to
5 to 15 knots after midnight. a chance of showers and
thunderstorms after midnight. waves calm to 2 feet. 
.friday...northeast winds 10 to 20 knots. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 140801
glfls 
expires:202607142000;;941715

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jul 14 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... 

the 30.1 inch ridging persists until friday morning. expect the 
ridging to retreat east towards the st. lawrence seaway and to 
weaken with time on friday. a low pressure of at least 29.8 inches 
could impact the upper great lakes this weekend, although 
uncertainty remains high on the track and strength of it. 




lsz263-142000-
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 am edt tue jul 14 2026

.early this morning...west winds 20 to 30 knots. waves 4 to
7 feet occasionally to 9 feet subsiding to 3 to 6 feet
occasionally to 8 feet. 
.today...west winds 15 to 25 knots becoming southwest 10 to
20 knots late. waves subsiding to 1 to 3 feet. 
.tonight...west winds 5 to 15 knots veering northwest after
midnight. patchy smoke. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing west in the
afternoon. smoke. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots veering northeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. waves calm to 2 feet.
.friday...east winds 10 to 20 knots backing northeast. a chance
of showers and thunderstorms. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$