fzus63 kmqt 141401
glfls 
expires:202608142000;;175916

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri aug 14 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...

30.2 high pressure settles over lake superior today. a 29.9 inch low 
over the dakotas tonight moves over the lake saturday night as the 
30.2 inch high moves east into new england. this low deepens to 29.7 
inches as it reaches the lower great lakes by sunday afternoon. 
sunday night into monday, a 30.1 inch high over the plains weakens 
to 30.0 inches as it slides south of lake superior. by tuesday, this 
high is generally south of the great lakes as a 29.5 inch low over 
hudson bay extends a 29.9 inch trough over lake superior. ridging of 
around 30.0 inches could return to the lake by wednesday evening.




lsz162-142000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt fri aug 14 2026 /901 am cdt fri aug 14 2026/

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

$$

fzus63 kmqt 141401
glfls 
expires:202608142000;;175917

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri aug 14 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...

30.2 high pressure settles over lake superior today. a 29.9 inch low 
over the dakotas tonight moves over the lake saturday night as the 
30.2 inch high moves east into new england. this low deepens to 29.7 
inches as it reaches the lower great lakes by sunday afternoon. 
sunday night into monday, a 30.1 inch high over the plains weakens 
to 30.0 inches as it slides south of lake superior. by tuesday, this 
high is generally south of the great lakes as a 29.5 inch low over 
hudson bay extends a 29.9 inch trough over lake superior. ridging of 
around 30.0 inches could return to the lake by wednesday evening.




lsz263-142000-
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-
1001 am edt fri aug 14 2026

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

$$