fzus63 kmqt 270201
glfls 
expires:202606270800;;966695

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri jun 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... 

through saturday afternoon, 30.1 inch high will extend from the 
upper great lakes to eastern hudson bay while low pressure of at 
least 29.5 inches develops over the high plains. into sunday 
morning, the low consolidates to around 29.4 inches over southern 
saskatchewan as the high retreats to hudson bay, remaining at 30.1 
inches. the low pushes into manitoba and the dakotas early monday 
morning while the high shifts southeast to just east of the lower 
great lakes. tuesday into wednesday, the low moves through northern 
ontario at around 29.5 inches as 30.1 inch high pressure extends 
over much of the east coast. by thursday morning, the low will move 
east through quebec while 30.1 inch high pressure builds south of 
the great lakes.




lsz162-270800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt fri jun 26 2026 /900 pm cdt fri jun 26 2026/

.rest of tonight...northeast winds 5 to 15 knots veering east
late. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots becoming northeast 10 to
20 knots in the afternoon. waves building to 1 to 3 feet. 
.saturday night...east winds 10 to 20 knots becoming northeast
5 to 15 knots after midnight, then increasing to 10 to 20 knots
late. waves subsiding to calm to 2 feet. 
.sunday...east winds 10 to 20 knots becoming northeast 15 to
25 knots by mid afternoon. a chance of showers. a slight chance
of thunderstorms by mid afternoon. waves building to 2 to 4 feet.
.sunday night...east winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. showers likely and a chance of
thunderstorms. waves subsiding to 1 to 3 feet. 
.monday...northeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.monday night...northeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a chance of showers and
thunderstorms. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots becoming west 10 to
20 knots. a chance of showers. waves subsiding to calm to 2 feet.
.wednesday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers and thunderstorms. waves calm to
2 feet. 

$$

fzus63 kmqt 270201
glfls 
expires:202606270800;;966696

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt fri jun 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... 

through saturday afternoon, 30.1 inch high will extend from the 
upper great lakes to eastern hudson bay while low pressure of at 
least 29.5 inches develops over the high plains. into sunday 
morning, the low consolidates to around 29.4 inches over southern 
saskatchewan as the high retreats to hudson bay, remaining at 30.1 
inches. the low pushes into manitoba and the dakotas early monday 
morning while the high shifts southeast to just east of the lower 
great lakes. tuesday into wednesday, the low moves through northern 
ontario at around 29.5 inches as 30.1 inch high pressure extends 
over much of the east coast. by thursday morning, the low will move 
east through quebec while 30.1 inch high pressure builds south of 
the great lakes.




lsz263-270800-
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 edt fri jun 26 2026

.rest of tonight...east winds 5 to 15 knots becoming southeast
less than 10 knots late. waves calm to 2 feet. 
.saturday...east winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon, then increasing to 10 to 20 knots
late. waves calm to 2 feet. 
.saturday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering southeast late. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.sunday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a chance of showers by mid afternoon. waves
building to 2 to 4 feet. 
.sunday night...east winds 15 to 25 knots becoming southeast
10 to 20 knots after midnight. a chance of showers through
midnight. a slight chance of thunderstorms. showers likely after
midnight. waves 2 to 4 feet. 
.monday...east winds 10 to 20 knots. waves 2 to 4 feet. 
.monday night...east winds 10 to 20 knots veering south after
midnight. a chance of showers through midnight. a chance of
thunderstorms. showers likely after midnight. waves 2 to 4 feet. 
.tuesday...southwest winds 10 to 20 knots. a chance of showers.
waves subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of showers.
waves subsiding to calm to 2 feet, then building to 1 to 3 feet. 

$$