fzus63 kmqt 101950
glfls 
expires:202601110400;;129769

open lake forecast for lake superior
national weather service marquette mi
250 pm est sat jan 10 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...

29.9 inch troughing extends over lake superior this afternoon and 
evening off of a 29.8 inch low pressure developing over lower 
michigan and the lower great lakes. 30.2 inch ridging moves over 
lake superior on sunday as the low deepens to 29.6 inches over 
eastern ontario sunday morning. a weak 29.9 inch trough pushes over 
lake superior sunday night as a 29.6 inch low moves over hudson bay. 
a weak 30.0 inch high then moves over the lake monday night ahead of 
a 29.4 inch low over lake winnipeg. this low deepens to 29.3 inches 
by tuesday evening near lake superior before moving into southern 
quebec by wednesday morning. meanwhile, 30.6 inch high pressure 
builds over the dakotas during the middle of next week.



lsz162-110400-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
250 pm est sat jan 10 2026 /150 pm cst sat jan 10 2026/

...gale warning in effect from 7 pm est /6 pm cst/ this evening
to 1 am est /midnight cst/ sunday...

.late this afternoon...northwest winds 15 to 25 knots. a chance
of snow showers. waves 1 to 3 feet. 
.tonight...north gales to 35 knots knots diminishing to 10 to 20 
knots late. a slight chance of snow showers in the evening. waves 
building to 5 to 8 feet occasionally to 10 feet, then subsiding to
3 to 6 feet occasionally to 8 feet.
.sunday...northwest winds 10 to 20 knots backing west by late
morning, then becoming southwest 20 to 30 knots by mid afternoon.
a slight chance of snow showers in the afternoon. waves subsiding
to 1 to 3 feet, then building to 3 to 5 feet occasionally to
7 feet. 
.sunday night...southwest winds 20 to 30 knots becoming west
15 to 25 knots after midnight. a slight chance of snow showers in
the evening. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 2 to 4 feet. 
.monday...west winds 10 to 20 knots. waves subsiding to 1 to
3 feet. 
.monday night...southwest winds 15 to 25 knots. a chance of rain
showers after midnight. waves 1 to 3 feet. 
.tuesday...west winds 15 to 25 knots becoming north 20 to
30 knots. rain showers likely. a chance of snow showers. a chance
of rain showers. waves building to 3 to 6 feet occasionally to
8 feet. 
.wednesday...north winds 20 to 30 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 101950
glfls 
expires:202601110400;;129770

open lake forecast for lake superior
national weather service marquette mi
250 pm est sat jan 10 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...

29.9 inch troughing extends over lake superior this afternoon and 
evening off of a 29.8 inch low pressure developing over lower 
michigan and the lower great lakes. 30.2 inch ridging moves over 
lake superior on sunday as the low deepens to 29.6 inches over 
eastern ontario sunday morning. a weak 29.9 inch trough pushes over 
lake superior sunday night as a 29.6 inch low moves over hudson bay. 
a weak 30.0 inch high then moves over the lake monday night ahead of 
a 29.4 inch low over lake winnipeg. this low deepens to 29.3 inches 
by tuesday evening near lake superior before moving into southern 
quebec by wednesday morning. meanwhile, 30.6 inch high pressure 
builds over the dakotas during the middle of next week.



lsz263-110400-
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-
250 pm est sat jan 10 2026

...gale warning in effect from 7 pm this evening to 1 am est
sunday...

.late this afternoon...northwest winds 15 to 25 knots. snow
showers. waves 3 to 5 feet occasionally to 7 feet building to
4 to 7 feet occasionally to 9 feet. 
.tonight...north gales to 35 knots diminishing to 15 to 25 knots 
late. freezing spray. snow likely in the evening. a slight chance 
of snow showers after midnight. waves building to 8 to 11 feet 
occasionally to 14 feet, then subsiding to 5 to 8 feet 
occasionally to 10 feet. 
.sunday...north winds 10 to 20 knots backing west by late
morning, then becoming southwest 20 to 30 knots by mid afternoon.
waves subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...southwest gales to 35 knots becoming west 20 to
30 knots after midnight. a slight chance of snow showers in the
evening. waves building to 6 to 9 feet occasionally to 11 feet,
then subsiding to 4 to 7 feet occasionally to 9 feet. 
.monday...west winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.monday night...southwest winds 10 to 20 knots. waves 2 to
4 feet. 
.tuesday...west winds 20 to 30 knots becoming north gales to
35 knots. a chance of rain and snow showers. freezing spray.
waves building to 7 to 10 feet occasionally to 13 feet. 
.wednesday...north gales to 35 knots becoming northwest 15 to
25 knots. freezing spray. waves subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$