fzus63 kmqt 030300
glfls 
expires:202603030900;;531243

open lake forecast for lake superior
national weather service marquette mi
1000 pm est mon mar 2 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...

weak 30.1 inch trough over the lake tonight gives way to 30.2 inch 
ridging into tuesday morning as a more compact high of 30.4 inches 
moves to james bay. a weak 30.1 inch trough develops tuesday 
afternoon and evening. another large area of high pressure will move 
into central and eastern canada wednesday into thursday morning. the 
strong high will help keep a 29.7 inch low moving up from the 
southern plains to our south as it weakens to 29.9 inches by the 
time it reaches the lower great lakes wednesday night, dissipating 
thereafter. friday, low pressure ejects out of the plains, reaching 
lake superior saturday morning at least at 29.8 inches.



lsz162-030900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est mon mar 2 2026 /900 pm cst mon mar 2 2026/

.rest of tonight...southwest winds 10 to 20 knots diminishing to
5 to 15 knots by midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots backing east by late
morning, then veering west by mid afternoon. a slight chance of.
waves calm to 2 feet. 
.tuesday night...west winds 5 to 15 knots backing southwest late.
waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots becoming south 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.wednesday night...east winds 10 to 20 knots backing northeast
after midnight. waves calm to 2 feet. 
.thursday...northeast winds 15 to 25 knots. waves building to
2 to 4 feet. 
.thursday night...northeast winds 10 to 20 knots becoming east
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.friday...east winds 5 to 15 knots backing north. a chance of
rain showers. waves subsiding to calm to 2 feet. 
.saturday...west winds 10 to 20 knots becoming southwest 20 to
30 knots. waves building to 3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 030300
glfls 
expires:202603030900;;531244

open lake forecast for lake superior
national weather service marquette mi
1000 pm est mon mar 2 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...

weak 30.1 inch trough over the lake tonight gives way to 30.2 inch 
ridging into tuesday morning as a more compact high of 30.4 inches 
moves to james bay. a weak 30.1 inch trough develops tuesday 
afternoon and evening. another large area of high pressure will move 
into central and eastern canada wednesday into thursday morning. the 
strong high will help keep a 29.7 inch low moving up from the 
southern plains to our south as it weakens to 29.9 inches by the 
time it reaches the lower great lakes wednesday night, dissipating 
thereafter. friday, low pressure ejects out of the plains, reaching 
lake superior saturday morning at least at 29.8 inches.



lsz263-030900-
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-
1000 pm est mon mar 2 2026

.rest of tonight...southwest winds 5 to 15 knots. a slight chance
of snow showers after midnight. waves 2 to 4 feet subsiding to
calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots veering east by late
morning, then veering southwest by mid afternoon. a slight chance
of. waves calm to 2 feet. 
.tuesday night...west winds 15 to 25 knots backing southwest
late. waves calm to 2 feet. 
.wednesday...southwest winds 15 to 25 knots becoming south 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.wednesday night...east winds 15 to 25 knots backing northeast
after midnight. waves building to 3 to 5 feet occasionally to
7 feet. 
.thursday...northeast winds 15 to 25 knots. waves building to
3 to 6 feet occasionally to 8 feet. 
.thursday night...east winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves 3 to 5 feet occasionally to
7 feet. 
.friday...southeast winds 5 to 15 knots becoming north 10 to
20 knots. a chance of rain showers. waves subsiding to 1 to
3 feet. 
.saturday...west winds 10 to 20 knots becoming southwest 20 to
30 knots. waves subsiding to calm to 2 feet, then building to
3 to 6 feet occasionally to 8 feet. 

$$