fzus63 kmqt 040201
glfls 
expires:202605040800;;975374

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun may 3 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...

a 29.2 inch low over the manitoba will move into ontario tonight and 
deepen to 29.1 inches on monday. the low lifts into james bay by 
monday evening as 30.1 inch ridging builds just to the east of the 
canadian rockies. as the high pressure ridging shifts to the 
canadian prairies tuesday and wednesday, the now-29.2 inch low 
continues lifting into far northern quebec. thursday into friday, 
the weather pattern becomes nebulous as major pressure systems 
remain far away from the upper great lakes.



lsz162-040800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt sun may 3 2026 /901 pm cdt sun may 3 2026/

.rest of tonight...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of rain showers after
midnight. waves calm to 2 feet building to 3 to 6 feet
occasionally to 8 feet. 
.monday...west winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon, then diminishing to 15 to 25 knots late. a
chance of rain showers through early afternoon. waves subsiding
to 3 to 5 feet occasionally to 7 feet. 
.monday night...west winds 15 to 25 knots. waves subsiding to
calm to 2 feet. 
.tuesday...west winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.tuesday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.wednesday...west winds 10 to 20 knots becoming southwest 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southwest winds 5 to 15 knots veering northwest.
waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 040201
glfls 
expires:202605040800;;975375

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun may 3 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...

a 29.2 inch low over the manitoba will move into ontario tonight and 
deepen to 29.1 inches on monday. the low lifts into james bay by 
monday evening as 30.1 inch ridging builds just to the east of the 
canadian rockies. as the high pressure ridging shifts to the 
canadian prairies tuesday and wednesday, the now-29.2 inch low 
continues lifting into far northern quebec. thursday into friday, 
the weather pattern becomes nebulous as major pressure systems 
remain far away from the upper great lakes.



lsz263-040800-
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-
1001 pm edt sun may 3 2026

.rest of tonight...southwest winds 5 to 15 knots increasing to
20 to 30 knots. a slight chance of rain showers after midnight.
waves 1 to 3 feet building to 4 to 7 feet occasionally to 9 feet.
.monday...southwest winds 20 to 30 knots veering west in the
afternoon, then diminishing to 15 to 25 knots late. a chance of
rain showers through early afternoon. waves building to 5 to
8 feet occasionally to 10 feet. 
.monday night...west winds 15 to 25 knots diminishing to 10 to
20 knots late. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.tuesday...west winds 10 to 20 knots. waves subsiding to 2 to
4 feet. 
.tuesday night...west winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves building to 1 to 3 feet. 
.wednesday night...west winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$