fzus63 kmqt 030901
glfls 
expires:202611032100;;183446

open lake forecast for lake superior
national weather service marquette mi
400 am est tue nov 3 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...

a 29.5 inch low over minnesota tracks toward western lake superior 
into tuesday morning while weakening slightly to 29.7 inches. this 
lowers pressure over lake superior to 29.7 inches by tuesday 
afternoon. meanwhile, a second colorado low follows close behind the 
first, deepening to 29.5 inches over the minnesota/wisconsin state 
line through wednesday morning before lifting northeast over lake 
superior through thursday. high pressure ridging of 30.1 inches 
returns from the northwest through friday, weakening to 30.0 inches 
on saturday as it shifts southeast ahead of a clipper low pressure 
system.




lsz162-032100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est tue nov 3 2026 /300 am cst tue nov 3 2026/

.early this morning...south winds 5 to 15 knots. patchy fog. a
chance of showers. waves 1 to 3 feet. 
.today...south winds 5 to 15 knots backing north by late morning,
then becoming northeast 10 to 20 knots by mid afternoon. patchy
fog. a chance of showers in the morning. showers likely in the
afternoon. waves subsiding to calm to 2 feet. 
.tonight...northeast winds 15 to 25 knots veering east by
midnight, then backing northeast late. patchy fog. a slight
chance of thunderstorms in the evening. showers. waves building
to 2 to 4 feet. 
.wednesday...northeast winds 15 to 25 knots diminishing to 10 to
20 knots. showers. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.wednesday night...north winds 10 to 20 knots increasing to 20 to
30 knots after midnight. showers. waves subsiding to 1 to 3 feet,
then building to 3 to 6 feet occasionally to 8 feet. 
.thursday...north winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. rain showers likely in the morning,
then a chance of rain showers in the afternoon. waves building to
5 to 9 feet occasionally to 11 feet. 
.thursday night...northeast winds 20 to 30 knots. waves building
to 5 to 9 feet occasionally to 11 feet. 
.friday...northeast winds 10 to 20 knots becoming east 5 to
15 knots. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 030901
glfls 
expires:202611032100;;183447

open lake forecast for lake superior
national weather service marquette mi
400 am est tue nov 3 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...

a 29.5 inch low over minnesota tracks toward western lake superior 
into tuesday morning while weakening slightly to 29.7 inches. this 
lowers pressure over lake superior to 29.7 inches by tuesday 
afternoon. meanwhile, a second colorado low follows close behind the 
first, deepening to 29.5 inches over the minnesota/wisconsin state 
line through wednesday morning before lifting northeast over lake 
superior through thursday. high pressure ridging of 30.1 inches 
returns from the northwest through friday, weakening to 30.0 inches 
on saturday as it shifts southeast ahead of a clipper low pressure 
system.




lsz263-032100-
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 est tue nov 3 2026

.early this morning...south winds 5 to 15 knots. patchy fog. a
chance of showers. waves 1 to 3 feet. 
.today...south winds 5 to 15 knots veering southwest by late
morning, then becoming northeast 10 to 20 knots by mid afternoon.
patchy fog. a chance of showers in the morning. showers in the
afternoon. waves subsiding to calm to 2 feet. 
.tonight...northeast winds 15 to 25 knots veering east by
midnight, then backing northeast late. patchy fog. a slight
chance of thunderstorms in the evening. showers. waves building
to 2 to 4 feet. 
.wednesday...northeast winds 15 to 25 knots diminishing to 10 to
20 knots. patchy fog in the morning. showers. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.wednesday night...north winds 15 to 25 knots increasing to gales
to 35 knots after midnight. showers. waves building to 4 to
7 feet occasionally to 9 feet. 
.thursday...north gales to 40 knots. rain showers. waves building
to 9 to 12 feet occasionally to 15 feet. 
.thursday night...northeast gales to 35 knots diminishing to
20 to 30 knots after midnight. a chance of rain showers in the
evening. waves subsiding to 6 to 9 feet occasionally to 11 feet. 
.friday...northeast winds 15 to 25 knots becoming east 5 to
15 knots. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

$$