fzus63 kmqt 011402
glfls 
expires:202610012000;;357568

open lake forecast for lake superior
national weather service marquette mi
1002 am edt thu oct 1 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...

troughing of around 29.8 inches lingers over eastern lake superior 
this morning between a 29.1 inch hudson bay low and another 29.7 
inch low over the south plains. high pressure builds to 30.2 inches 
over the northern plains tonight into friday before shifting east to 
the great lakes friday night and saturday and building to 30.3 
inches. a weak 29.9 inch trough crosses lake superior saturday night 
and sunday, with 30.3 inch high pressure quickly returning sunday 
night into monday. ridging remains in the area through tuesday 
afternoon before being replaced by troughing wednesday morning.




lsz162-012000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1002 am edt thu oct 1 2026 /902 am cdt thu oct 1 2026/

.rest of today...west winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves calm to 2 feet building to 1 to
3 feet. 
.tonight...northwest winds 15 to 25 knots. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.friday...northwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. waves subsiding to calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots backing south after
midnight. waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots increasing to 15 to
25 knots by mid afternoon. a chance of showers. waves calm to
2 feet. 
.saturday night...southwest winds 15 to 25 knots veering west
after midnight. waves building to 1 to 3 feet. 
.sunday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots becoming south 10 to
20 knots. waves building to 1 to 3 feet. 

$$