fzus63 kmqt 282101
glfls 
expires:202601290900;;698893

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed jan 28 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 weak 30.0 inch trough remains over eastern lake superior this 
afternoon as high pressure builds to the south and west through the 
rest of the work week. remnant troughing gradually weakens over the 
lake through thursday before strong high pressure around 31.0 inches 
descending from the canadian prairies brings ridging of around 30.6 
inches back over the lake by friday. ridging remains over the lake 
this weekend, weakening to 30.2 inches on sunday as a 29.9 to 
30.0 inch trough approaches from the northwest early next week.



lsz162-290900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est wed jan 28 2026 /300 pm cst wed jan 28 2026/

.late this afternoon...northwest winds 15 to 25 knots. a slight
chance of snow showers. waves 2 to 4 feet. 
.tonight...northwest winds 15 to 25 knots becoming north 10 to
20 knots by midnight. a chance of snow showers. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 1 to
3 feet. 
.thursday...north winds 10 to 20 knots. a chance of snow showers.
waves subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.thursday night...north winds 10 to 20 knots veering northeast by
midnight, then backing north late. waves building to 2 to 4 feet.
.friday...north winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.friday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots backing southwest in the
afternoon. waves calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots veering west. a chance
of snow showers. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots veering north. waves calm
to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 282101
glfls 
expires:202601290900;;698894

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed jan 28 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 weak 30.0 inch trough remains over eastern lake superior this 
afternoon as high pressure builds to the south and west through the 
rest of the work week. remnant troughing gradually weakens over the 
lake through thursday before strong high pressure around 31.0 inches 
descending from the canadian prairies brings ridging of around 30.6 
inches back over the lake by friday. ridging remains over the lake 
this weekend, weakening to 30.2 inches on sunday as a 29.9 to 
30.0 inch trough approaches from the northwest early next week.



lsz263-290900-
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-
400 pm est wed jan 28 2026

...heavy freezing spray warning in effect until 1 am est
thursday...

.late this afternoon...northwest winds 10 to 20 knots. a chance
of snow showers. waves 2 to 4 feet. 
.tonight...north winds 10 to 20 knots diminishing to 5 to
15 knots late. a chance of snow showers in the evening. snow
showers likely after midnight. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.thursday...north winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. snow showers likely in the morning. a
chance of snow showers in the afternoon. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.thursday night...north winds 15 to 25 knots. a chance of snow
showers. waves building to 3 to 5 feet occasionally to 7 feet. 
.friday...north winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.friday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to 1 to 3 feet. 
.saturday...north winds 5 to 15 knots backing west in the
afternoon. waves subsiding to calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.sunday...southwest winds 10 to 20 knots veering west. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.monday...northwest winds 10 to 20 knots becoming north 5 to
15 knots. waves subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$