fzus63 kmqt 150201
glfls 
expires:202607150800;;982307

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

weak 30.0 inch ridging over lake superior this evening increases to 
30.1 inches by wednesday morning, persisting until friday; expect 
the ridge to retreat east towards the st. lawrence seaway and to 
weaken with time on friday. a low pressure of at least 29.8 inches 
passing through the northern plains could impact the upper great 
lakes this weekend, although uncertainty remains high on the track 
and strength of it. nevertheless, weak 29.9 inch ridging does look 
to return to lake superior on sunday. 




lsz162-150800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt tue jul 14 2026 /900 pm cdt tue jul 14 2026/

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

$$

fzus63 kmqt 150201
glfls 
expires:202607150800;;982308

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

weak 30.0 inch ridging over lake superior this evening increases to 
30.1 inches by wednesday morning, persisting until friday; expect 
the ridge to retreat east towards the st. lawrence seaway and to 
weaken with time on friday. a low pressure of at least 29.8 inches 
passing through the northern plains could impact the upper great 
lakes this weekend, although uncertainty remains high on the track 
and strength of it. nevertheless, weak 29.9 inch ridging does look 
to return to lake superior on sunday. 




lsz263-150800-
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 tue jul 14 2026

.rest of tonight...northwest winds 5 to 15 knots. a slight chance
of showers and thunderstorms by midnight. smoke. waves 1 to
3 feet 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. smoke. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots veering northeast by mid
afternoon. smoke through early afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. a slight chance of
showers and thunderstorms after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots. showers likely and a chance
of thunderstorms. waves calm to 2 feet. 
.friday night...northeast winds 10 to 20 knots becoming north
5 to 15 knots after midnight. showers likely through midnight. a
chance of thunderstorms. a chance of showers after midnight.
waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 
.sunday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 

$$