Well above average temperatures will prevail across the Plains and the West Coast this week, while a cold front will bring Arctic air to the South and East Coast Thursday and Friday. Lake effect snow is forecast downwind of the Great Lakes through Thursday along and behind the Arctic front, as well as mountain snow across the Southern Appalachians. Read More >
FZUS63 KMQT 140315
GLFLS
Experimental Tabular Open Lake Forecast for Lake Superior
National Weather Service Negaunee MI
1015 PM EST Tue Jan 13 2026
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 29.1 inch low over northern Ontario this evening tracks through
Quebec tonight into Wednesday morning. Meanwhile, a 30.5 inch high
pressure over the Canadian Prairies builds over the eastern Dakotas
Wednesday morning, sliding around the southwestern periphery of the
Great Lakes Thursday while weakening to 30.2 inches as it retreats
into the Gulf. The ridging is followed up by a 29.4 inch low moving
over Lake Superior on Friday, which weakens to 29.7 inches over
southern Ontario Saturday. Meanwhile, high pressure ridging of at
least 30.2 inches settles west of the Great Lakes over the weekend.
A weak clipper low of around 29.9 inches is then expected to move
over Lake Superior late Sunday into early next week.
LSZ162-140900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1000 PM EST Tue Jan 13 2026 /900 PM CST Tue Jan 13 2026/
, GALE WARNING IN EFFECT THROUGH WEDNESDAY AFTERNOON,
, HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH WEDNESDAY
AFTERNOON,
.REST OF TONIGHT, North gales to 35 knots. Heavy freezing spray.
Waves 6 to 10 feet occasionally to 13 feet.
.WEDNESDAY, North winds 20 to 30 knots diminishing to 15 to
25 knots. Heavy freezing spray in the morning. Waves subsiding to
2 to 4 feet.
.WEDNESDAY NIGHT, North winds 10 to 20 knots becoming northwest
5 to 15 knots late. Waves subsiding to calm to 2 feet.
.THURSDAY, Southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. A slight chance of snow showers in the
morning, then snow showers in the afternoon. Waves building to
3 to 6 feet occasionally to 8 feet.
.THURSDAY NIGHT, Southwest winds 20 to 30 knots becoming west
10 to 20 knots after midnight. Snow showers likely in the
evening, then a chance of snow showers after midnight. Waves
subsiding to calm to 2 feet.
.FRIDAY, Northwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. Snow showers likely. Waves building to
2 to 4 feet.
.FRIDAY NIGHT, North winds 20 to 30 knots. A chance of snow
showers. Waves building to 3 to 5 feet occasionally to 7 feet.
.SATURDAY, North winds 15 to 25 knots backing northwest. Waves
subsiding to 1 to 3 feet.
.SUNDAY, West winds 15 to 25 knots becoming northwest 20 to
30 knots. A chance of snow showers. Waves building to 2 to
4 feet.
Note, wave height forecasts are for ice free areas.
LSZ162-140900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1015 PM EST Tue Jan 13 2026 /915 PM CST Tue Jan 13 2026/
...GALE WARNING IN EFFECT THROUGH WEDNESDAY AFTERNOON...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH WEDNESDAY
AFTERNOON...
.Overnight...
Weather.............Mostly cloudy with heavy freezing spray.
Sfc winds...........North gales to 35 knots decreasing to 30 knots
after midnight.
100-ft winds........North gales to 45 knots decreasing to 35 knots
after midnight.
Sig waves...........8 to 12 feet.
Ocnl waves..........Around 14 feet.
.WEDNESDAY...
Weather.............Mostly sunny with heavy freezing spray, then
mostly sunny in the afternoon.
Sfc winds...........North 20 to 25 knots.
100-ft winds........North to 30 knots.
Sig waves...........8 to 12 feet subsiding to 5 to 7 feet in the
afternoon.
Ocnl waves..........Around 13 feet subsiding to around 8 feet in
the afternoon.
.WEDNESDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........3 to 5 feet subsiding to 2 to 4 feet after
midnight.
Ocnl waves..........Around 7 feet in the evening.
.THURSDAY...
Weather.............Cloudy, then snow showers in the afternoon.
Sfc winds...........Southwest 10 to 15 knots increasing to 20 to 25
knots in the afternoon.
100-ft winds........Southwest 15 to 20 knots increasing to 30 knots
in the afternoon.
Sig waves...........2 to 4 feet building to 5 to 7 feet in the
afternoon.
Ocnl waves..........Around 9 feet in the afternoon.
.THURSDAY NIGHT...
Weather.............Snow showers likely, then cloudy with chance of
snow showers after midnight.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........5 to 7 feet subsiding to 3 to 5 feet after
midnight.
Ocnl waves..........Around 9 feet subsiding to around 6 feet after
midnight.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Chance of snow showers. Freezing spray. South winds
15 to 20 knots. Waves 8 to 12 feet.
.SATURDAY...Chance of snow showers in the morning. Heavy freezing
spray. North winds 15 to 20 knots. Waves 6 to 9 feet.
.SUNDAY...Breezy. Heavy freezing spray. Chance of snow showers.
West winds 20 to 25 knots. Waves 8 to 12 feet.
$$
LSZ263-140900-
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-
1015 PM EST Tue Jan 13 2026
...GALE WARNING IN EFFECT THROUGH WEDNESDAY AFTERNOON...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH WEDNESDAY
AFTERNOON...
.Overnight...
Weather.............Mostly cloudy with heavy freezing spray, then
mostly cloudy with heavy freezing spray with a
chance of snow showers after midnight.
Sfc winds...........North gales to 40 knots.
100-ft winds........North storm force winds to 50 knots.
Sig waves...........14 to 18 feet.
Ocnl waves..........Around 21 feet.
.WEDNESDAY...
Weather.............Partly sunny with heavy freezing spray.
Sfc winds...........North to 30 knots.
100-ft winds........North gales to 35 knots.
Sig waves...........12 to 16 feet subsiding to 8 to 12 feet in the
afternoon.
Ocnl waves..........Around 21 feet subsiding to around 15 feet in
the afternoon.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy with freezing spray, then mostly
cloudy after midnight.
Sfc winds...........North 15 to 20 knots.
100-ft winds........North 20 to 25 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 9 feet.
.THURSDAY...
Weather.............Cloudy, then chance of snow showers and
freezing spray in the afternoon.
Sfc winds...........Southwest 10 to 15 knots increasing to 20 to 25
knots in the afternoon.
100-ft winds........Southwest 15 to 20 knots increasing to 30 knots
in the afternoon.
Sig waves...........2 to 4 feet building to 6 to 9 feet in the
afternoon.
Ocnl waves..........Around 11 feet in the afternoon.
.THURSDAY NIGHT...
Weather.............Cloudy with freezing spray with a chance of
snow showers, then cloudy with chance of snow
showers after midnight.
Sfc winds...........Southwest 20 to 25 knots decreasing to 10 to 15
knots after midnight.
100-ft winds........Southwest to 30 knots decreasing to 15 to 20
knots after midnight.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 10 feet.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Chance of snow showers. Freezing spray. South winds
15 to 20 knots. Waves 8 to 12 feet.
.SATURDAY...Chance of snow showers in the morning. Heavy freezing
spray. North winds 15 to 20 knots. Waves 6 to 9 feet.
.SUNDAY...Breezy. Heavy freezing spray. Chance of snow showers.
West winds 20 to 25 knots. Waves 8 to 12 feet.
$$
LSZ264-140900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1015 PM EST Tue Jan 13 2026
...GALE WARNING IN EFFECT THROUGH WEDNESDAY AFTERNOON...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE WEDNESDAY
NIGHT...
.Overnight...
Weather.............Mostly cloudy with heavy freezing spray with a
chance of snow showers, then mostly cloudy with
snow showers and heavy freezing spray after
midnight.
Sfc winds...........North gales to 45 knots.
100-ft winds........North storm force winds to 55 knots.
Sig waves...........15 to 20 feet.
Ocnl waves..........Around 26 feet.
.WEDNESDAY...
Weather.............Partly sunny with heavy freezing spray with a
chance of snow showers, then partly sunny with
heavy freezing spray and slight chance of snow
showers in the afternoon.
Sfc winds...........North gales to 40 knots decreasing to 30 knots
in the afternoon.
100-ft winds........North storm force winds to 50 knots decreasing
to 35 knot gales in the afternoon.
Sig waves...........14 to 18 feet.
Ocnl waves..........Around 22 feet.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy with heavy freezing spray.
Sfc winds...........North to 30 knots decreasing to 10 to 15 knots
after midnight.
100-ft winds........North gales to 35 knots decreasing to 15 to 20
knots after midnight.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 12 feet.
.THURSDAY...
Weather.............Cloudy, then chance of snow showers in the
afternoon.
Sfc winds...........Northwest 5 to 10 knots increasing to southwest
15 to 20 knots in the afternoon.
100-ft winds........Northwest 10 to 15 knots increasing to
southwest 20 to 25 knots in the afternoon.
Sig waves...........3 to 5 feet building to 5 to 7 feet in the
afternoon.
Ocnl waves..........Around 6 feet building to around 9 feet in the
afternoon.
.THURSDAY NIGHT...
Weather.............Cloudy with freezing spray with a chance of
snow showers, then cloudy after midnight.
Sfc winds...........Southwest 20 to 25 knots.
100-ft winds........Southwest to 30 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 10 feet.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Chance of snow showers. Freezing spray. South winds
15 to 20 knots. Waves 8 to 12 feet.
.SATURDAY...Chance of snow showers in the morning. Heavy freezing
spray. North winds 15 to 20 knots. Waves 6 to 9 feet.
.SUNDAY...Breezy. Heavy freezing spray. Chance of snow showers.
West winds 20 to 25 knots. Waves 8 to 12 feet.
$$
LSZ265-140900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1015 PM EST Tue Jan 13 2026
...GALE WARNING IN EFFECT THROUGH WEDNESDAY EVENING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE WEDNESDAY
NIGHT...
.Overnight...
Weather.............Cloudy with freezing spray with a chance of
snow showers, then snow showers and heavy
freezing spray after midnight.
Sfc winds...........North gales to 40 knots.
100-ft winds........North storm force winds to 50 knots.
Sig waves...........15 to 20 feet.
Ocnl waves..........Around 25 feet.
.WEDNESDAY...
Weather.............Mostly cloudy with heavy freezing spray with a
chance of snow showers.
Sfc winds...........North gales to 40 knots decreasing to 30 knots
in the afternoon.
100-ft winds........North storm force winds to 50 knots decreasing
to 35 knot gales in the afternoon.
Sig waves...........15 to 20 feet.
Ocnl waves..........Around 26 feet.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy with heavy freezing spray with a
chance of snow showers.
Sfc winds...........North to 30 knots decreasing to 15 to 20 knots
after midnight.
100-ft winds........North gales to 35 knots decreasing to 20 to 25
knots after midnight.
Sig waves...........10 to 14 feet.
Ocnl waves..........Around 16 feet.
.THURSDAY...
Weather.............Mostly cloudy.
Sfc winds...........Northwest 10 to 15 knots becoming southwest in
the afternoon.
100-ft winds........Northwest 15 to 20 knots becoming southwest in
the afternoon.
Sig waves...........5 to 7 feet subsiding to 2 to 4 feet in the
afternoon.
Ocnl waves..........Around 8 feet subsiding to around 5 feet in the
afternoon.
.THURSDAY NIGHT...
Weather.............Cloudy with chance of snow showers, then cloudy
after midnight.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Chance of snow showers. Freezing spray. South winds
15 to 20 knots. Waves 8 to 12 feet.
.SATURDAY...Chance of snow showers in the morning. Heavy freezing
spray. North winds 15 to 20 knots. Waves 6 to 9 feet.
.SUNDAY...Breezy. Heavy freezing spray. Chance of snow showers.
West winds 20 to 25 knots. Waves 8 to 12 feet.
$$
LSZ266-140900-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
1015 PM EST Tue Jan 13 2026
...GALE WARNING IN EFFECT THROUGH WEDNESDAY EVENING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE WEDNESDAY
NIGHT...
.Overnight...
Weather.............Freezing spray with snow showers likely, then
snow showers and heavy freezing spray after
midnight.
Sfc winds...........North gales to 45 knots.
100-ft winds........North storm force winds to 55 knots.
Sig waves...........18 to 23 feet.
Ocnl waves..........Around 28 feet.
.WEDNESDAY...
Weather.............Mostly cloudy with heavy freezing spray with
snow showers likely, then mostly cloudy with
heavy freezing spray with a chance of snow
showers in the afternoon.
Sfc winds...........North gales to 40 knots.
100-ft winds........North storm force winds to 50 knots.
Sig waves...........18 to 23 feet.
Ocnl waves..........Around 28 feet.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy with heavy freezing spray with a
chance of snow showers.
Sfc winds...........North to 30 knots decreasing to 15 to 20 knots
after midnight.
100-ft winds........North gales to 35 knots decreasing to 20 to 25
knots after midnight.
Sig waves...........10 to 14 feet.
Ocnl waves..........Around 18 feet.
.THURSDAY...
Weather.............Mostly cloudy with chance of snow showers, then
mostly cloudy in the afternoon.
Sfc winds...........North 10 to 15 knots becoming southwest 15 to
20 knots in the afternoon.
100-ft winds........North 15 to 20 knots becoming southwest 20 to
25 knots in the afternoon.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
.THURSDAY NIGHT...
Weather.............Cloudy with freezing spray with a chance of
snow showers.
Sfc winds...........Southwest 20 to 25 knots.
100-ft winds........Southwest to 30 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 11 feet.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Chance of snow showers. Freezing spray. South winds
15 to 20 knots. Waves 8 to 12 feet.
.SATURDAY...Chance of snow showers in the morning. Heavy freezing
spray. North winds 15 to 20 knots. Waves 6 to 9 feet.
.SUNDAY...Breezy. Heavy freezing spray. Chance of snow showers.
West winds 20 to 25 knots. Waves 8 to 12 feet.
$$
LSZ267-140900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1015 PM EST Tue Jan 13 2026
...GALE WARNING IN EFFECT THROUGH WEDNESDAY EVENING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 4 AM EST WEDNESDAY
THROUGH LATE WEDNESDAY NIGHT...
.Overnight...
Weather.............Cloudy with chance of rain and snow showers,
then cloudy with heavy freezing spray with snow
showers likely after midnight.
Sfc winds...........Northwest gales to 40 knots.
100-ft winds........Northwest storm force winds to 50 knots.
Sig waves...........14 to 18 feet.
Ocnl waves..........Around 23 feet.
.WEDNESDAY...
Weather.............Mostly cloudy with heavy freezing spray with
snow showers likely, then mostly cloudy with
heavy freezing spray and slight chance of snow
showers in the afternoon.
Sfc winds...........North gales to 40 knots decreasing to 30 knots
in the afternoon.
100-ft winds........North storm force winds to 50 knots decreasing
to 35 knot gales in the afternoon.
Sig waves...........14 to 18 feet.
Ocnl waves..........Around 21 feet.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy with heavy freezing spray with a
chance of snow showers.
Sfc winds...........North to 30 knots decreasing to 15 to 20 knots
after midnight.
100-ft winds........North gales to 35 knots decreasing to 20 to 25
knots after midnight.
Sig waves...........8 to 12 feet.
Ocnl waves..........Around 14 feet.
.THURSDAY...
Weather.............Mostly cloudy.
Sfc winds...........North 10 to 15 knots becoming southwest in the
afternoon.
100-ft winds........North 15 to 20 knots becoming southwest in the
afternoon.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
.THURSDAY NIGHT...
Weather.............Mostly cloudy with chance of snow showers, then
mostly cloudy with chance of snow showers and
freezing spray after midnight.
Sfc winds...........South 20 to 25 knots.
100-ft winds........South to 30 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 10 feet.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Chance of snow showers. Freezing spray. South winds
15 to 20 knots. Waves 8 to 12 feet.
.SATURDAY...Chance of snow showers in the morning. Heavy freezing
spray. North winds 15 to 20 knots. Waves 6 to 9 feet.
.SUNDAY...Breezy. Heavy freezing spray. Chance of snow showers.
West winds 20 to 25 knots. Waves 8 to 12 feet.
$$
LSZ261-140900-
MAFOR 1404/
Superior West...GALE WARNING IN EFFECT...HEAVY FREEZING SPRAY
WARNING IN EFFECT...13842 11832 14820. Waves 7 to 11 feet
overnight. Waves 7 to 10 feet subsiding to 3 to 6 feet Wednesday.
Waves 2 to 4 feet Wednesday evening.
Superior North Central...GALE WARNING IN EFFECT...HEAVY FREEZING
SPRAY WARNING IN EFFECT...11867 11857 12852 14842. Waves 13 to 18
feet overnight. Waves 11 to 16 feet subsiding to 7 to 10 feet
Wednesday. Waves 5 to 9 feet Wednesday evening.
Superior South Central...GALE WARNING IN EFFECT...HEAVY FREEZING
SPRAY WARNING IN EFFECT...13857 12852 12842 11840. Waves 13 to 17
feet building to 15 to 19 feet overnight. Waves 14 to 19 feet
subsiding to 10 to 15 feet Wednesday. Waves 8 to 11 feet
Wednesday evening.
Superior East...GALE WARNING IN EFFECT...HEAVY FREEZING SPRAY
WARNING IN EFFECT...14857 11852 13842. Waves 11 to 15 feet
building to 13 to 17 feet overnight. Waves 10 to 15 feet
subsiding to 8 to 11 feet Wednesday. Waves 6 to 10 feet Wednesday
evening.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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