fzus63 kmqt 152100
glfls 
expires:202611160900;;885671

open lake forecast for lake superior
national weather service marquette mi
400 pm est sun nov 15 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 extending from ontario into the mississippi river 
valley builds from 30.3 inches to 30.4 inches into tomorrow as it 
slowly drifts eastward, having already become centered over 
illinois. this sends ridging at 30.3 inches over lake superior 
through tonight. ridging continues to build to 30.6 inches, shifting 
southeast and reaching west virginia by late tuesday. pressure falls 
slightly over lake superior, decreasing to 30.1 inches along the 
northwestern shoreline of lake superior, and remaining at 30.3 
inches near whitefish bay late tomorrow. the high lingers over the 
mid-atlantic at 30.5 inches into wednesday as pressure continues to 
fall slowly over lake superior, reaching 29.9 inches in the west and 
30.2 inches in the east by wednesday afternoon. pressure over lake 
superior then falls abruptly through thursday as a colorado low 
approaches northern minnesota late wednesday and tracks directly 
over lake superior at 29.8 inches on thursday. the low transits 
quickly northeast, and pressure begins to increase over lake supeior 
by early friday. 




lsz162-160900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est sun nov 15 2026 /300 pm cst sun nov 15 2026/

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots by midnight. waves building to 3 to 6 feet occasionally
to 8 feet. 
.monday...southwest winds 20 to 30 knots. waves building to 4 to
8 feet occasionally to 10 feet. 
.monday night...southwest winds 20 to 30 knots diminishing to
15 to 25 knots by midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...southwest winds 15 to 25 knots. waves subsiding to
1 to 3 feet. 
.tuesday night...southwest winds 10 to 20 knots becoming south
15 to 25 knots after midnight. waves subsiding to calm to 2 feet,
then building to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.wednesday night...south winds 10 to 20 knots increasing to 20 to
30 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.thursday...west gales to 35 knots diminishing to 15 to 25 knots.
waves building to 6 to 9 feet occasionally to 11 feet, then
subsiding to calm to 2 feet. 
.friday...southeast winds 5 to 15 knots becoming east 15 to
25 knots. rain showers. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 152100
glfls 
expires:202611160900;;885672

open lake forecast for lake superior
national weather service marquette mi
400 pm est sun nov 15 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 extending from ontario into the mississippi river 
valley builds from 30.3 inches to 30.4 inches into tomorrow as it 
slowly drifts eastward, having already become centered over 
illinois. this sends ridging at 30.3 inches over lake superior 
through tonight. ridging continues to build to 30.6 inches, shifting 
southeast and reaching west virginia by late tuesday. pressure falls 
slightly over lake superior, decreasing to 30.1 inches along the 
northwestern shoreline of lake superior, and remaining at 30.3 
inches near whitefish bay late tomorrow. the high lingers over the 
mid-atlantic at 30.5 inches into wednesday as pressure continues to 
fall slowly over lake superior, reaching 29.9 inches in the west and 
30.2 inches in the east by wednesday afternoon. pressure over lake 
superior then falls abruptly through thursday as a colorado low 
approaches northern minnesota late wednesday and tracks directly 
over lake superior at 29.8 inches on thursday. the low transits 
quickly northeast, and pressure begins to increase over lake supeior 
by early friday. 




lsz263-160900-
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 pm est sun nov 15 2026

.late this afternoon...southwest winds 10 to 20 knots. waves calm
to 2 feet building to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots by midnight. waves building to 3 to 6 feet occasionally
to 8 feet. 
.monday...southwest winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 40 knots possible. waves building
to 5 to 9 feet occasionally to 11 feet. 
.monday night...southwest winds 20 to 30 knots. waves subsiding
to 4 to 7 feet occasionally to 9 feet. 
.tuesday...southwest winds 20 to 30 knots. waves subsiding to
2 to 4 feet. 
.tuesday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots. waves subsiding to 1 to
3 feet. 
.wednesday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.thursday...west gales to 35 knots. a chance of rain showers.
waves building to 8 to 11 feet occasionally to 14 feet, then
subsiding to 1 to 3 feet. 
.friday...south winds 5 to 15 knots becoming southeast 10 to
20 knots. rain showers likely. waves subsiding to calm to 2 feet,
then building to 2 to 4 feet. 

$$