fzus63 kmqt 272058
glfls 
expires:202601280900;;643611

open lake forecast for lake superior
national weather service marquette mi
358 pm est tue jan 27 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 low grazes the northeast portion of the lake at 30.0 inches 
tonight into wednesday as high pressure builds to the south and 
west. remnant troughing gradually weakens over the lake thursday 
before strong high pressure around 31.0 inches descending from the 
canadian prairies brings ridging of around 30.6 inches back over 
lake superior by friday. ridging remains over the lake this weekend, 
weakening on sunday to 30.2 inches as the high pressure moves south 
over the plains.



lsz162-280900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
358 pm est tue jan 27 2026 /258 pm cst tue jan 27 2026/

...heavy freezing spray warning in effect until 1 am est
/midnight cst/ wednesday...

.late this afternoon...west winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.tonight...west winds 15 to 25 knots veering northwest by
midnight. heavy freezing spray in the evening. scattered snow
showers. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.wednesday night...north winds 10 to 20 knots. a chance of snow
showers. waves subsiding to calm to 2 feet. 
.thursday...north winds 10 to 20 knots. a chance of snow showers.
waves calm to 2 feet. 
.thursday night...north winds 10 to 20 knots. waves building to
1 to 3 feet. 
.friday...north winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.friday night...north winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots backing southwest. waves
calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots veering northwest. a
chance of snow showers. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 272058
glfls 
expires:202601280900;;643612

open lake forecast for lake superior
national weather service marquette mi
358 pm est tue jan 27 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 low grazes the northeast portion of the lake at 30.0 inches 
tonight into wednesday as high pressure builds to the south and 
west. remnant troughing gradually weakens over the lake thursday 
before strong high pressure around 31.0 inches descending from the 
canadian prairies brings ridging of around 30.6 inches back over 
lake superior by friday. ridging remains over the lake this weekend, 
weakening on sunday to 30.2 inches as the high pressure moves south 
over the plains.



lsz263-280900-
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-
358 pm est tue jan 27 2026

...heavy freezing spray warning in effect through wednesday
morning...

.late this afternoon...west winds 15 to 25 knots. heavy freezing
spray. scattered snow showers. waves 4 to 7 feet occasionally to
9 feet. 
.tonight...west winds 20 to 30 knots becoming northwest 15 to
25 knots by midnight, then diminishing to 10 to 20 knots late.
heavy freezing spray. scattered snow showers in the evening.
numerous snow showers after midnight. waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...northwest winds 10 to 20 knots. snow showers likely
in the morning. a chance of snow showers in the afternoon. waves
subsiding to 2 to 4 feet. 
.wednesday night...north winds 15 to 25 knots diminishing to
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 increasing to 15 to
25 knots in the afternoon. a chance of snow showers. waves
building to 2 to 4 feet. 
.thursday night...north winds 15 to 25 knots. a chance of snow
showers. waves building to 3 to 6 feet occasionally to 8 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...west winds 5 to 15 knots becoming southwest 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.sunday...southwest winds 5 to 15 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$