fzus63 kmqt 020815 aaa
glfls 
expires:202605021615;;882263

open lake forecast for lake superior...updated
national weather service marquette mi
415 am edt sat may 2 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 through this morning. a 29.6 inch trough moves over the 
lake tonight and deepens with time before a 29.1 inch low crosses 
northern ontario and drags a 29.3 inch trough across the lake on 
monday. weak ridging around 30.0 inches builds back over lake 
superior by tuesday in the wake of the low and persists through 
wednesday as high pressure builds over the northern plains.



lsz162-021615-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
415 am edt sat may 2 2026 /315 am cdt sat may 2 2026/

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...southwest winds 5 to 15 knots backing south in the
afternoon. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots backing northeast after
midnight, then backing west late. a chance of rain showers. 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 building to 1 to 3 feet. 
.monday...west winds 15 to 25 knots. a chance of rain showers.
waves building to 2 to 4 feet. 
.monday night...northwest winds 15 to 25 knots backing west after
midnight. waves subsiding to calm to 2 feet. 
.tuesday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots veering northwest.
waves calm to 2 feet. 

$$

fzus63 kmqt 020815 aaa
glfls 
expires:202605021615;;882264

open lake forecast for lake superior...updated
national weather service marquette mi
415 am edt sat may 2 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 through this morning. a 29.6 inch trough moves over the 
lake tonight and deepens with time before a 29.1 inch low crosses 
northern ontario and drags a 29.3 inch trough across the lake on 
monday. weak ridging around 30.0 inches builds back over lake 
superior by tuesday in the wake of the low and persists through 
wednesday as high pressure builds over the northern plains.



lsz263-021615-
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-
415 am edt sat may 2 2026

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

$$