fzus63 kmqt 312001
glfls 
expires:202606010800;;965741

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun may 31 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... 

high pressure of 30.0 inches remains over the great lakes this 
afternoon. another high pressure of 30.4 inches approaches the area 
from hudson bay tonight through monday, becoming centered over the 
great lakes by tuesday morning. the high weakens to 30.3 inches for 
tuesday night, then moves southeast to the ohio river valley on 
wednesday. meanwhile, a 29.9 inch trough approaches from the 
northwest, moving over lake superior on thursday.




lsz162-010800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt sun may 31 2026 /301 pm cdt sun may 31 2026/

.late this afternoon...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots becoming northeast less than
10 knots after midnight, then increasing to 5 to 15 knots late.
waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots increasing to 15 to
25 knots. waves building to 2 to 4 feet. 
.monday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots late. waves subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots becoming north
less than 10 knots after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots backing south by mid
afternoon. waves calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots veering southwest
after midnight. a chance of showers. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots becoming west 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet,
then subsiding to calm to 2 feet. 
.friday...south winds 5 to 15 knots backing northeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 312001
glfls 
expires:202606010800;;965742

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun may 31 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... 

high pressure of 30.0 inches remains over the great lakes this 
afternoon. another high pressure of 30.4 inches approaches the area 
from hudson bay tonight through monday, becoming centered over the 
great lakes by tuesday morning. the high weakens to 30.3 inches for 
tuesday night, then moves southeast to the ohio river valley on 
wednesday. meanwhile, a 29.9 inch trough approaches from the 
northwest, moving over lake superior on thursday.




lsz263-010800-
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 sun may 31 2026

.late this afternoon...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots backing northeast late. waves
calm to 2 feet. 
.monday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves building to 2 to 4 feet. 
.monday night...northeast winds 10 to 20 knots becoming east 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.tuesday...east winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots veering southwest
after midnight. a chance of showers after midnight. waves
building to 1 to 3 feet. 
.thursday...southwest winds 10 to 20 knots veering west. a chance
of showers. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.friday...west winds 5 to 15 knots backing east. waves subsiding
to calm to 2 feet. 

$$