fzus63 kmqt 082002
glfls 
expires:202605090800;;234496

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri may 8 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... 

troughing of 29.6 inches over lake superior this afternoon deepens 
to 29.5 inches by this evening as a 29.4 inch low remains over 
hudson bay. the trough pushes east into quebec by saturday afternoon 
as 30.3 inch high pressure builds over the canadian prairie this 
weekend. the high shifts east to the great lakes at 30.3 inches by 
sunday night. ridging persists at around 30.2 inches over lake 
superior through monday, followed by a 29.7 inch trough on tuesday 
as high pressure weakens and shifts to the east coast.



lsz162-090800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt fri may 8 2026 /301 pm cdt fri may 8 2026/

.late this afternoon...south winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...north winds 5 to 15 knots backing west after midnight,
then veering northwest late. waves calm to 2 feet. 
.saturday...northwest winds 10 to 20 knots backing west in the
afternoon. waves calm to 2 feet. 
.saturday night...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.sunday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.sunday night...north winds 5 to 15 knots. waves calm to 2 feet. 
.monday...north winds less than 10 knots becoming south 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots. a chance of rain
showers after midnight. waves calm to 2 feet. 
.tuesday...east winds 10 to 20 knots becoming north 5 to
15 knots. a chance of rain showers. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing southwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 082002
glfls 
expires:202605090800;;234497

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri may 8 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... 

troughing of 29.6 inches over lake superior this afternoon deepens 
to 29.5 inches by this evening as a 29.4 inch low remains over 
hudson bay. the trough pushes east into quebec by saturday afternoon 
as 30.3 inch high pressure builds over the canadian prairie this 
weekend. the high shifts east to the great lakes at 30.3 inches by 
sunday night. ridging persists at around 30.2 inches over lake 
superior through monday, followed by a 29.7 inch trough on tuesday 
as high pressure weakens and shifts to the east coast.



lsz263-090800-
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-
401 pm edt fri may 8 2026

.late this afternoon...southwest winds 10 to 20 knots. waves 1 to
3 feet. 
.tonight...southwest winds 5 to 15 knots veering northwest late.
a chance of rain showers through midnight. waves subsiding to
calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet. 
.saturday night...west winds 5 to 15 knots veering northwest
after midnight. waves building to 1 to 3 feet, then subsiding to
calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.monday...north winds less than 10 knots becoming south 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.tuesday...southeast winds 5 to 15 knots backing north. a chance
of rain showers. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing southwest. waves
calm to 2 feet. 

$$