fzus63 kmqt 011401
glfls 
expires:202608012000;;444948

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat aug 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 troughing of around 29.9 inches lingers over lake superior 
today as a 29.6 inch low over central illinois slowly moves toward 
the ohio river valley. 30.0 inch ridging builds over the lake from 
northern ontario tonight and persists through monday afternoon. a 
29.8 inch trough moves over the lake monday night into tuesday as a 
29.5 inch low tracks over far northern hudson bay. ridging returns 
on wednesday as 30-0 to 30.1 inch high pressure builds into the 
great lakes from the northern plains.




lsz162-012000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt sat aug 1 2026 /901 am cdt sat aug 1 2026/

.rest of today...northeast winds 5 to 15 knots veering east in
the afternoon, then backing northeast late. a slight chance of
showers by mid afternoon. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots veering northeast late.
waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering southwest after
midnight. a chance of showers after midnight. waves calm to
2 feet. 
.tuesday...southwest winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots. waves calm to 2 feet.

$$

fzus63 kmqt 011401
glfls 
expires:202608012000;;444949

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat aug 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 troughing of around 29.9 inches lingers over lake superior 
today as a 29.6 inch low over central illinois slowly moves toward 
the ohio river valley. 30.0 inch ridging builds over the lake from 
northern ontario tonight and persists through monday afternoon. a 
29.8 inch trough moves over the lake monday night into tuesday as a 
29.5 inch low tracks over far northern hudson bay. ridging returns 
on wednesday as 30-0 to 30.1 inch high pressure builds into the 
great lakes from the northern plains.




lsz263-012000-
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-
1001 am edt sat aug 1 2026

.rest of today...northeast winds 5 to 15 knots increasing to
10 to 20 knots in the afternoon. waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots veering south
after midnight. waves building to 1 to 3 feet. 
.tuesday...southwest winds 10 to 20 knots becoming northwest 5 to
15 knots. a chance of showers. waves subsiding to calm to 2 feet.
.wednesday...west winds 10 to 20 knots becoming southwest 5 to
15 knots. waves calm to 2 feet. 

$$