fzus63 kmqt 142001
glfls 
expires:202607150800;;969057

open lake forecast for lake superior
national weather service marquette mi
401 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 trough moving over the lake this afternoon and 
evening gives way to 30.1 inch ridging, which persists until friday 
morning. 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 could impact the upper great lakes this weekend, 
although uncertainty remains high on the track and strength of it. 




lsz162-150800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt tue jul 14 2026 /301 pm cdt tue jul 14 2026/

.late this afternoon...southwest winds 10 to 20 knots. waves 1 to
3 feet. 
.tonight...west winds 10 to 20 knots becoming northwest 5 to
15 knots after midnight. a slight chance of showers and
thunderstorms through midnight. smoke. waves subsiding to 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 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 142001
glfls 
expires:202607150800;;969058

open lake forecast for lake superior
national weather service marquette mi
401 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 trough moving over the lake this afternoon and 
evening gives way to 30.1 inch ridging, which persists until friday 
morning. 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 could impact the upper great lakes this weekend, 
although uncertainty remains high on the track and strength of it. 




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-
401 pm edt tue jul 14 2026

.late this afternoon...west winds 10 to 20 knots. waves 2 to
4 feet. 
.tonight...west winds 10 to 20 knots becoming northwest 5 to
15 knots after midnight. a slight chance of showers and
thunderstorms through midnight. 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. 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. 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. 

$$