fzus63 kmqt 231458
glfls 
expires:202601232100;;389942

open lake forecast for lake superior
national weather service marquette mi
958 am est fri jan 23 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...

high pressure steadily increases to at least 30.6 inches over lake 
superior through saturday as a 31.1 inch high currently over the 
canadian prairies slides southeast to the upper mississippi river 
valley at 30.9 inches. ridging over the lake weakens to 30.3 inches 
on sunday as a 29.6 inch low moves northeast along the atlantic 
coast. a 29.8 inch clipper low crosses the lake monday night, 
followed by ridging of around 30.1 inches during the middle part of 
next week.



lsz162-232100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
958 am est fri jan 23 2026 /858 am cst fri jan 23 2026/

...heavy freezing spray warning in effect until 1 pm est /noon
cst/ this afternoon...

.rest of today...northwest winds 20 to 30 knots diminishing to
15 to 25 knots. scattered snow showers. waves 4 to 7 feet
occasionally to 9 feet subsiding to 3 to 5 feet occasionally to
7 feet. 
.tonight...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. scattered snow showers. waves subsiding to
1 to 3 feet. 
.saturday...west winds 10 to 20 knots becoming southwest 5 to
15 knots by mid afternoon. a chance of snow showers. waves
subsiding to calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots veering west
after midnight. a chance of snow showers. waves calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots. a slight chance of snow
showers. waves calm to 2 feet. 
.sunday night...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.monday...southwest winds 15 to 25 knots veering west. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
1 to 3 feet. 
.tuesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 231458
glfls 
expires:202601232100;;389943

open lake forecast for lake superior
national weather service marquette mi
958 am est fri jan 23 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...

high pressure steadily increases to at least 30.6 inches over lake 
superior through saturday as a 31.1 inch high currently over the 
canadian prairies slides southeast to the upper mississippi river 
valley at 30.9 inches. ridging over the lake weakens to 30.3 inches 
on sunday as a 29.6 inch low moves northeast along the atlantic 
coast. a 29.8 inch clipper low crosses the lake monday night, 
followed by ridging of around 30.1 inches during the middle part of 
next week.



lsz263-232100-
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-
958 am est fri jan 23 2026

...heavy freezing spray warning in effect until 7 pm est this
evening...

.rest of today...northwest winds 20 to 30 knots diminishing to
15 to 25 knots by mid afternoon. heavy freezing spray. numerous
snow showers. waves 6 to 9 feet occasionally to 11 feet subsiding
to 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. numerous snow showers in the evening.
scattered snow showers after midnight. waves subsiding to 2 to
4 feet. 
.saturday...northwest winds 5 to 15 knots backing southwest by
mid afternoon. a chance of snow showers. waves subsiding to 1 to
3 feet. 
.saturday night...southwest winds 5 to 15 knots veering west
after midnight. a chance of snow showers. waves 1 to 3 feet. 
.sunday...northwest winds 5 to 15 knots. a chance of snow
showers. waves subsiding to calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots. waves building to
1 to 3 feet. 
.monday...west winds 20 to 30 knots. heavy freezing spray. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet. 
.tuesday...northwest winds 15 to 25 knots. waves subsiding to
2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$