fzus63 kmqt 031402
glfls 
expires:202605032000;;948273

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun may 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...

a 29.6 inch trough moves over lake superior today before lifting 
into northern ontario. a deepening 29.3 inch low digs over the 
canadian prairies tonight and then deepens to 29.1 inches over 
northern ontario on monday. the low lifts into james bay by monday 
evening as 30.1 inch ridging builds just to the east of the canadian 
rockies. as the high pressure ridging shifts to the canadian 
prairies tuesday and wednesday, the now-29.2 inch low continues 
lifting into far northern quebec. thursday into friday, the weather 
pattern becomes nebulous as major pressure systems remain far away 
from the upper great lakes.



lsz162-032000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt sun may 3 2026 /901 am cdt sun may 3 2026/

.rest of today...west winds 10 to 20 knots backing southwest
late. waves calm to 2 feet building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 20 to
30 knots. a chance of rain showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday...west winds 20 to 30 knots diminishing to 15 to 25 knots
late. a chance of rain showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.tuesday...west winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.wednesday...southwest winds 5 to 15 knots veering northwest.
waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots veering west. waves
calm to 2 feet. 

$$