fzus63 kmqt 032001
glfls 
expires:202607040800;;355289

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jul 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... 

30.0 inch ridging remains over the lake this afternoon, extending 
from high pressure centered over the manitoba/ontario border. 
ridging remains over the lake through the weekend as a weak low of 
29.9 inches passes south of lake superior. late sunday night into 
monday, the high is pushed southeast into quebec at 30.1 inches by a 
29.6 inch low over northern manitoba. the low deepens to 29.5 inches 
by tuesday morning, potentially extending a 29.9 inch trough over 
the lake. meanwhile, 30.1 inch high pressure builds over the 
northern plains, then moves over the great lakes for wednesday.




lsz162-040800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt fri jul 3 2026 /300 pm cdt fri jul 3 2026/

.late this afternoon...northeast winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots. patchy fog through
midnight. a slight chance of showers and thunderstorms. waves
calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a slight chance of showers and
thunderstorms. waves building to 2 to 4 feet. 
.saturday night...northeast winds 10 to 20 knots. a slight chance
of showers. waves subsiding to calm to 2 feet. 
.sunday...northeast winds 10 to 20 knots. a slight chance of
showers through early afternoon. waves building to 1 to 3 feet,
then subsiding to calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots becoming north less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...north winds less than 10 knots. waves calm to 2 feet. 
.monday night...north winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 032001
glfls 
expires:202607040800;;355290

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jul 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... 

30.0 inch ridging remains over the lake this afternoon, extending 
from high pressure centered over the manitoba/ontario border. 
ridging remains over the lake through the weekend as a weak low of 
29.9 inches passes south of lake superior. late sunday night into 
monday, the high is pushed southeast into quebec at 30.1 inches by a 
29.6 inch low over northern manitoba. the low deepens to 29.5 inches 
by tuesday morning, potentially extending a 29.9 inch trough over 
the lake. meanwhile, 30.1 inch high pressure builds over the 
northern plains, then moves over the great lakes for wednesday.




lsz263-040800-
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 edt fri jul 3 2026

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

$$