fzus63 kmqt 150258
glfls 
expires:202602150900;;646312

open lake forecast for lake superior
national weather service marquette mi
958 pm est sat feb 14 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 29.9 inch trough moves farther into the upper great lakes 
tonight. this is followed by weak 29.9 inch ridging tomorrow ahead 
of a deeper 29.8 inch trough moving over the lake on monday. ridging 
builds to 30.2 inches over the lake on tuesday, giving way to 
pressure falls into the middle of the week as a 29.3 inch low lifts 
off of the central rockies into the upper midwest by wednesday.



lsz162-150900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
958 pm est sat feb 14 2026 /858 pm cst sat feb 14 2026/

.rest of tonight...west winds 5 to 15 knots veering northwest
late. waves calm to 2 feet. 
.sunday...north winds 5 to 15 knots veering south. waves calm to
2 feet. 
.sunday night...south winds 5 to 15 knots veering southwest by
midnight. a slight chance of rain showers in the evening. a
chance of snow showers. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet. 
.monday night...west winds 5 to 15 knots veering northeast after
midnight. waves calm to 2 feet. 
.tuesday...east winds 10 to 20 knots increasing to gales to
35 knots in the afternoon. waves calm to 2 feet. 
.tuesday night...east gales to 40 knots increasing to storm force
winds to 50 knots after midnight. a chance of snow in the
evening. snow likely after midnight. waves calm to 2 feet. 
.wednesday...northeast storm force winds to 55 knots diminishing
to gales to 45 knots. rain, snow. waves calm to 2 feet. 
.thursday...northeast winds 20 to 30 knots. a chance of snow
showers. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 150258
glfls 
expires:202602150900;;646313

open lake forecast for lake superior
national weather service marquette mi
958 pm est sat feb 14 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 29.9 inch trough moves farther into the upper great lakes 
tonight. this is followed by weak 29.9 inch ridging tomorrow ahead 
of a deeper 29.8 inch trough moving over the lake on monday. ridging 
builds to 30.2 inches over the lake on tuesday, giving way to 
pressure falls into the middle of the week as a 29.3 inch low lifts 
off of the central rockies into the upper midwest by wednesday.



lsz263-150900-
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 pm est sat feb 14 2026

.rest of tonight...west winds less than 10 knots veering north
late. patchy fog after midnight. waves calm to 2 feet. 
.sunday...north winds less than 10 knots backing southwest by
late morning, then backing south by mid afternoon. patchy dense
fog in the morning. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots veering southwest by
midnight. a chance of snow showers. a slight chance of rain
showers after midnight. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...west winds less than 10 knots veering north after
midnight. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots increasing to 20 to 30 knots
in the afternoon. waves building to 1 to 3 feet. 
.tuesday night...east gales to 45 knots. a chance of snow in the
evening, then snow, possibly mixed with rain after midnight.
waves building to 10 to 14 feet occasionally to 18 feet. 
.wednesday...east storm force winds to 50 knots backing
northeast. snow likely with pockets of rain, then a chance of
snow showers. waves building to 12 to 17 feet occasionally to
21 feet, then subsiding to 9 to 12 feet occasionally to 15 feet. 
.thursday...northeast gales to 35 knots diminishing to 20 to
30 knots. a chance of snow showers. waves subsiding to 4 to
7 feet occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$