fzus63 kmqt 282001
glfls 
expires:202605290800;;804706

open lake forecast for lake superior
national weather service marquette mi
401 pm edt thu may 28 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 30.3 inch high pressure over the great lakes will weaken through 
friday to 30.0 inches as another high pressure dives south from the 
hudson bay. this high pressure will reach the upper great lakes on 
saturday at 30.3 inches and remain over the area through sunday. the 
high will weaken on monday as another 30.3 inch approaches the area 
from the north, which will build over the great lakes on tuesday.



lsz162-290800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt thu may 28 2026 /301 pm cdt thu may 28 2026/

.late this afternoon...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...north winds 5 to 15 knots backing southwest late.
waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots increasing to 15 to
25 knots. waves building to 2 to 4 feet. 
.saturday...northeast winds 15 to 25 knots. waves building to
3 to 6 feet occasionally to 8 feet. 
.saturday night...northeast winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...south winds 5 to 15 knots veering southwest by mid
afternoon. waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 282001
glfls 
expires:202605290800;;804707

open lake forecast for lake superior
national weather service marquette mi
401 pm edt thu may 28 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 30.3 inch high pressure over the great lakes will weaken through 
friday to 30.0 inches as another high pressure dives south from the 
hudson bay. this high pressure will reach the upper great lakes on 
saturday at 30.3 inches and remain over the area through sunday. the 
high will weaken on monday as another 30.3 inch approaches the area 
from the north, which will build over the great lakes on tuesday.



lsz263-290800-
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 thu may 28 2026

.late this afternoon...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots backing east late. waves
calm to 2 feet. 
.friday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 2 to 4 feet. 
.saturday...east winds 10 to 20 knots becoming northeast 15 to
25 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...east winds 10 to 20 knots becoming south 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...southwest winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots veering northeast after
midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.tuesday...northeast winds 5 to 15 knots veering east. waves calm
to 2 feet. 

$$