fzus63 kmqt 012001
glfls 
expires:202605020800;;854411

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri may 1 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...

weak ridging persists between 30.0 and 30.1 inches over lake 
superior until saturday morning as a 30.3 inch high slowly shifts 
east into northwest ontario and hudson bay. troughing of 29.6 inches 
then moves over the lake saturday night and deepens with time before 
a 29.3 inch low moves over the lake by monday. weak ridging of 29.8 
inches builds back over lake superior by tuesday in the wake of the 
low.



lsz162-020800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt fri may 1 2026 /301 pm cdt fri may 1 2026/

.late this afternoon...south winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots backing south late. a
slight chance of rain showers by mid afternoon. waves calm to
2 feet. 
.saturday night...south winds 5 to 15 knots veering west late. a
slight chance of rain showers through midnight. waves calm to
2 feet. 
.sunday...west winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.sunday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of rain showers after
midnight. waves calm to 2 feet. 
.monday...west winds 15 to 25 knots. a chance of rain showers.
waves building to 1 to 3 feet. 
.monday night...northwest winds 15 to 25 knots. waves 1 to
3 feet. 
.tuesday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 012001
glfls 
expires:202605020800;;854412

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri may 1 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...

weak ridging persists between 30.0 and 30.1 inches over lake 
superior until saturday morning as a 30.3 inch high slowly shifts 
east into northwest ontario and hudson bay. troughing of 29.6 inches 
then moves over the lake saturday night and deepens with time before 
a 29.3 inch low moves over the lake by monday. weak ridging of 29.8 
inches builds back over lake superior by tuesday in the wake of the 
low.



lsz263-020800-
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 1 2026

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...west winds 5 to 15 knots diminishing to less than
10 knots late. waves calm to 2 feet. 
.saturday...southwest winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then backing south late. waves calm to
2 feet. 
.saturday night...south winds 5 to 15 knots veering southwest
late. a slight chance of rain showers. waves calm to 2 feet. 
.sunday...west winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves building to 2 to 4 feet, then subsiding
to 1 to 3 feet. 
.sunday night...southwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves 1 to 3 feet. 
.monday...west winds 15 to 25 knots diminishing to 10 to 20 knots
by mid afternoon. a chance of rain showers. waves building to
2 to 4 feet. 
.monday night...northwest winds 10 to 20 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.wednesday...west winds 5 to 15 knots veering northwest. waves
subsiding to calm to 2 feet. 

$$