fzus63 kmqt 260801
glfls 
expires:202605262000;;667363

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue may 26 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... 

lake superior will remain under the influence of 29.8 inch troughing 
today until a 30.4 inch high over the western shores of hudson bay 
extends weak ridging of 30.1 inches over lake superior by tonight. 
the parent high then shifts south over the lake on thursday at 30.3 
inches. on friday, the high weakens to around 30.1 inches as it 
continues its southward propagation. however, another ridge pushing 
in from hudson bay brings 30.1 inch ridging back over lake superior 
late on friday, with the ridging increasing once again to 30.3 
inches by saturday as the parent high over hudson bay pushes south.



lsz162-262000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt tue may 26 2026 /300 am cdt tue may 26 2026/

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...northwest winds 5 to 15 knots veering east in the
afternoon, then backing northeast late. waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots diminishing to less than
10 knots after midnight, then increasing to 5 to 15 knots late.
waves calm to 2 feet. 
.wednesday...northeast winds 10 to 20 knots veering east in the
afternoon, then backing northeast late. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.wednesday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots becoming northeast 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.saturday...northeast winds 10 to 20 knots. waves building to
2 to 4 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 260801
glfls 
expires:202605262000;;667364

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue may 26 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... 

lake superior will remain under the influence of 29.8 inch troughing 
today until a 30.4 inch high over the western shores of hudson bay 
extends weak ridging of 30.1 inches over lake superior by tonight. 
the parent high then shifts south over the lake on thursday at 30.3 
inches. on friday, the high weakens to around 30.1 inches as it 
continues its southward propagation. however, another ridge pushing 
in from hudson bay brings 30.1 inch ridging back over lake superior 
late on friday, with the ridging increasing once again to 30.3 
inches by saturday as the parent high over hudson bay pushes south.



lsz263-262000-
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-
400 am edt tue may 26 2026

.early this morning...west winds 10 to 20 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.today...northwest winds 5 to 15 knots veering northeast in the
afternoon. waves subsiding to calm to 2 feet. 
.tonight...east winds less than 10 knots backing northeast after
midnight, then increasing to 5 to 15 knots late. waves calm to
2 feet. 
.wednesday...northeast winds 10 to 20 knots veering east late.
waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.wednesday night...northeast winds 5 to 15 knots diminishing to
less than 10 knots after midnight. waves subsiding to calm to
2 feet. 
.thursday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots veering west
after midnight. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots backing east. waves building
to 1 to 3 feet, then subsiding to calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots. waves building to
2 to 4 feet, then subsiding to calm to 2 feet. 

$$