Gusty winds are expected from portions of the Mid-Atlantic into the Northeast through the night following the system that brought rain to the area. An atmospheric river will move into the Northwest late today into Saturday bringing moderate to heavy rainfall, mountain snow, windy conditions, and high surf to the area over the weekend. Read More >
FZUS63 KMQT 020215
GLFLS
Experimental Tabular Open Lake Forecast for Lake Superior
National Weather Service Negaunee MI
1015 PM EDT Sat Nov 1 2025
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...30.1 inch ridging persists over the lake through early Sunday
morning as 30.2 inch high pressure shifts from the Central Plains to
the Midwest. Meanwhile, a 29.2 inch low moving across the Canadian
Prairie will reach Hudson Bay at 29.0 inches by Monday morning,
pulling a 29.6 inch trough across Lake Superior Sunday night into
Monday. A 30.0 inch ridge then rebuilds over the lake on Tuesday
associated with broad 30.2 inch high pressure over the US Southeast.
A 29.8 to 29.9 inch low moves over Lake Michigan Tuesday night. This
will be followed by a 30.2 inch high moving from the Northern Plains
to the the Great Lakes late Wednesday.
LSZ162-020800-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1001 PM EDT Sat Nov 1 2025 /901 PM CDT Sat Nov 1 2025/
, GALE WARNING IN EFFECT FROM 9 AM EDT /8 AM CDT/ SUNDAY THROUGH
MONDAY AFTERNOON,
.REST OF TONIGHT, Southwest winds 10 to 20 knots increasing to
15 to 25 knots late. Waves calm to 2 feet building to 3 to 5 feet
occasionally to 7 feet.
.SUNDAY, Southwest gales to 40 knots. A slight chance of rain
showers. Waves building to 10 to 14 feet occasionally to 18 feet.
.SUNDAY NIGHT, Southwest gales to 40 knots becoming west gales
to 35 knots after midnight, then diminishing to 20 to 30 knots
late. A slight chance of showers through midnight. Waves
subsiding to 4 to 7 feet occasionally to 9 feet.
.MONDAY, West winds 20 to 30 knots. Waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.MONDAY NIGHT, West winds 15 to 25 knots. Waves subsiding to
2 to 4 feet.
.TUESDAY, West winds 10 to 20 knots backing southwest by mid
afternoon. Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT, West winds 5 to 15 knots becoming northwest
10 to 20 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY, West winds 10 to 20 knots diminishing to 5 to
15 knots. Waves calm to 2 feet.
.THURSDAY, South winds 10 to 20 knots becoming southwest 15 to
25 knots. A chance of rain showers. Waves building to 1 to
3 feet.
LSZ162-020800-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1015 PM EDT Sat Nov 1 2025 /915 PM CDT Sat Nov 1 2025/
...GALE WARNING IN EFFECT FROM 9 AM EDT /8 AM CDT/ SUNDAY THROUGH
MONDAY AFTERNOON...
.Overnight...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........1 to 3 feet building to 3 to 5 feet after
midnight.
Ocnl waves..........Around 6 feet after midnight.
.SUNDAY...
Weather.............Mostly cloudy with a slight chance of showers.
Sfc winds...........Southwest to 30 knots increasing to 35 knot
gales in the afternoon.
100-ft winds........Southwest gales to 35 knots increasing to 45
knots in the afternoon.
Sig waves...........8 to 12 feet building to 12 to 16 feet in the
afternoon.
Ocnl waves..........Around 14 feet building to around 19 feet in
the afternoon.
.SUNDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Southwest to 30 knots.
100-ft winds........Southwest gales to 35 knots.
Sig waves...........10 to 14 feet.
Ocnl waves..........Around 17 feet.
.MONDAY...
Weather.............Sunny.
Sfc winds...........West to 30 knots.
100-ft winds........West gales to 35 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 12 feet.
.MONDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........West 20 to 25 knots.
100-ft winds........West to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 9 feet.
.FORECAST DAYS 3 THROUGH 5...
.TUESDAY...West winds 10 to 15 knots. Waves 6 to 9 feet.
.WEDNESDAY...Chance of showers. North winds 10 to 15 knots. Waves
5 to 7 feet.
.THURSDAY...Chance of showers. North winds 10 to 15 knots. Waves
6 to 9 feet.
$$
LSZ263-020800-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
1015 PM EDT Sat Nov 1 2025
...GALE WARNING IN EFFECT FROM 9 AM EDT SUNDAY THROUGH LATE
MONDAY NIGHT...
.Overnight...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........1 to 3 feet building to 3 to 5 feet after
midnight.
Ocnl waves..........Around 6 feet after midnight.
.SUNDAY...
Weather.............Partly sunny with a slight chance of showers.
Sfc winds...........Southwest to 30 knots increasing to 35 knot
gales in the afternoon.
100-ft winds........Southwest gales to 35 knots increasing to 45
knots in the afternoon.
Sig waves...........8 to 12 feet building to 12 to 16 feet in the
afternoon.
Ocnl waves..........Around 14 feet building to around 21 feet in
the afternoon.
.SUNDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Southwest gales to 35 knots decreasing to 30
knots after midnight.
100-ft winds........Southwest gales to 45 knots decreasing to 35
knots after midnight.
Sig waves...........14 to 18 feet.
Ocnl waves..........Around 23 feet.
.MONDAY...
Weather.............Sunny.
Sfc winds...........West to 30 knots.
100-ft winds........West gales to 35 knots.
Sig waves...........10 to 14 feet.
Ocnl waves..........Around 18 feet.
.MONDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........West to 30 knots.
100-ft winds........West gales to 35 knots.
Sig waves...........8 to 12 feet.
Ocnl waves..........Around 15 feet.
.FORECAST DAYS 3 THROUGH 5...
.TUESDAY...West winds 10 to 15 knots. Waves 6 to 9 feet.
.WEDNESDAY...Chance of showers. North winds 10 to 15 knots. Waves
5 to 7 feet.
.THURSDAY...Chance of showers. North winds 10 to 15 knots. Waves
6 to 9 feet.
$$
LSZ264-020800-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1015 PM EDT Sat Nov 1 2025
...GALE WARNING IN EFFECT FROM 9 AM EDT SUNDAY THROUGH LATE
MONDAY NIGHT...
.Overnight...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........1 to 3 feet building to 3 to 5 feet after
midnight.
Ocnl waves..........Around 6 feet after midnight.
.SUNDAY...
Weather.............Partly sunny with a slight chance of showers,
then mostly cloudy with chance of showers in
the afternoon.
Sfc winds...........Southwest 20 to 25 knots increasing to 35 knot
gales in the afternoon.
100-ft winds........Southwest to 30 knots increasing to 45 knot
gales in the afternoon.
Sig waves...........8 to 12 feet building to 12 to 16 feet in the
afternoon.
Ocnl waves..........Around 14 feet building to around 21 feet in
the afternoon.
.SUNDAY NIGHT...
Weather.............Mostly cloudy with chance of showers, then
partly cloudy after midnight.
Sfc winds...........Southwest gales to 40 knots.
100-ft winds........Southwest storm force winds to 50 knots.
Sig waves...........15 to 20 feet.
Ocnl waves..........Around 25 feet.
.MONDAY...
Weather.............Sunny.
Sfc winds...........West gales to 35 knots.
100-ft winds........West gales to 45 knots.
Sig waves...........12 to 16 feet.
Ocnl waves..........Around 19 feet.
.MONDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........West to 30 knots.
100-ft winds........West gales to 35 knots.
Sig waves...........10 to 14 feet.
Ocnl waves..........Around 16 feet.
.FORECAST DAYS 3 THROUGH 5...
.TUESDAY...West winds 10 to 15 knots. Waves 6 to 9 feet.
.WEDNESDAY...Chance of showers. North winds 10 to 15 knots. Waves
5 to 7 feet.
.THURSDAY...Chance of showers. North winds 10 to 15 knots. Waves
6 to 9 feet.
$$
LSZ265-020800-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1015 PM EDT Sat Nov 1 2025
...GALE WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
.Overnight...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
.SUNDAY...
Weather.............Mostly cloudy, then slight chance of showers in
the afternoon.
Sfc winds...........Southwest 20 to 25 knots.
100-ft winds........Southwest to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 9 feet.
.SUNDAY NIGHT...
Weather.............Mostly cloudy with chance of showers.
Sfc winds...........Southwest to 30 knots increasing to 35 knot
gales after midnight.
100-ft winds........Southwest gales to 35 knots increasing to 45
knots after midnight.
Sig waves...........8 to 12 feet.
Ocnl waves..........Around 14 feet.
.MONDAY...
Weather.............Sunny.
Sfc winds...........West gales to 35 knots.
100-ft winds........West gales to 45 knots.
Sig waves...........8 to 12 feet.
Ocnl waves..........Around 14 feet.
.MONDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........West to 30 knots.
100-ft winds........West gales to 35 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 12 feet.
.FORECAST DAYS 3 THROUGH 5...
.TUESDAY...West winds 10 to 15 knots. Waves 6 to 9 feet.
.WEDNESDAY...Chance of showers. North winds 10 to 15 knots. Waves
5 to 7 feet.
.THURSDAY...Chance of showers. North winds 10 to 15 knots. Waves
6 to 9 feet.
$$
LSZ266-020800-
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 EDT Sat Nov 1 2025
...GALE WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
.Overnight...
Weather.............Mostly cloudy with isolated showers.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet building to 3 to 5 feet after
midnight.
Ocnl waves..........Around 5 feet after midnight.
.SUNDAY...
Weather.............Partly sunny with a slight chance of showers.
Sfc winds...........Southwest to 30 knots.
100-ft winds........Southwest gales to 35 knots.
Sig waves...........6 to 9 feet building to 10 to 14 feet in the
afternoon.
Ocnl waves..........Around 11 feet building to around 16 feet in
the afternoon.
.SUNDAY NIGHT...
Weather.............Mostly cloudy with chance of showers.
Sfc winds...........Southwest gales to 35 knots.
100-ft winds........Southwest gales to 45 knots.
Sig waves...........15 to 20 feet.
Ocnl waves..........Around 24 feet.
.MONDAY...
Weather.............Mostly sunny.
Sfc winds...........West gales to 35 knots.
100-ft winds........West gales to 45 knots.
Sig waves...........14 to 18 feet.
Ocnl waves..........Around 22 feet.
.MONDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........West gales to 35 knots decreasing to 30 knots
after midnight.
100-ft winds........West gales to 45 knots decreasing to 35 knots
after midnight.
Sig waves...........12 to 16 feet.
Ocnl waves..........Around 20 feet.
.FORECAST DAYS 3 THROUGH 5...
.TUESDAY...West winds 10 to 15 knots. Waves 6 to 9 feet.
.WEDNESDAY...Chance of showers. North winds 10 to 15 knots. Waves
5 to 7 feet.
.THURSDAY...Chance of showers. North winds 10 to 15 knots. Waves
6 to 9 feet.
$$
LSZ267-020800-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1015 PM EDT Sat Nov 1 2025
...GALE WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
.Overnight...
Weather.............Cloudy with scattered showers, then mostly
cloudy with isolated showers after midnight.
Sfc winds...........Northwest 5 to 10 knots becoming west 10 to 15
knots after midnight.
100-ft winds........Northwest 10 to 15 knots becoming west 15 to 20
knots after midnight.
Sig waves...........2 to 4 feet.
.SUNDAY...
Weather.............Partly sunny with isolated showers.
Sfc winds...........Southwest 15 to 20 knots increasing to 30 knots
in the afternoon.
100-ft winds........Southwest 20 to 25 knots increasing to 35 knot
gales in the afternoon.
Sig waves...........5 to 7 feet building to 8 to 12 feet in the
afternoon.
Ocnl waves..........Around 8 feet building to around 14 feet in the
afternoon.
.SUNDAY NIGHT...
Weather.............Showers.
Sfc winds...........Southwest gales to 35 knots.
100-ft winds........Southwest gales to 45 knots.
Sig waves...........12 to 16 feet.
Ocnl waves..........Around 20 feet.
.MONDAY...
Weather.............Mostly sunny with chance of showers.
Sfc winds...........West gales to 40 knots.
100-ft winds........West storm force winds to 50 knots.
Sig waves...........14 to 18 feet.
Ocnl waves..........Around 22 feet.
.MONDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........West gales to 35 knots decreasing to 30 knots
after midnight.
100-ft winds........West gales to 45 knots decreasing to 35 knots
after midnight.
Sig waves...........14 to 18 feet.
Ocnl waves..........Around 22 feet.
.FORECAST DAYS 3 THROUGH 5...
.TUESDAY...West winds 10 to 15 knots. Waves 6 to 9 feet.
.WEDNESDAY...Chance of showers. North winds 10 to 15 knots. Waves
5 to 7 feet.
.THURSDAY...Chance of showers. North winds 10 to 15 knots. Waves
6 to 9 feet.
$$
LSZ261-020800-
MAFOR 0203/
Superior West...GALE WARNING IN EFFECT...11510 11520 11530 11540
14550. Waves 1 to 2 feet building to 2 to 4 feet overnight. Waves
3 to 6 feet building to 8 to 11 feet Sunday. Waves 9 to 12 feet
Sunday evening.
Superior North Central...GALE WARNING IN EFFECT...11510 11520
11530 11540 12550 12560. A chance of showers Sunday afternoon and
Sunday evening. Waves 1 to 2 feet building to 2 to 4 feet
overnight. Waves 3 to 6 feet building to 10 to 14 feet Sunday.
Waves 11 to 16 feet Sunday evening.
Superior South Central...GALE WARNING IN EFFECT...12510 11520
11530 11540 13550. A chance of showers Sunday evening. Waves 1 to
2 feet overnight. Waves 1 to 3 feet building to 5 to 8 feet
Sunday. Waves 5 to 9 feet Sunday evening.
Superior East...GALE WARNING IN EFFECT...11600 11610 11520 11530
11540 12550 11556. Waves 1 to 2 feet overnight. Waves 2 to 4 feet
building to 7 to 10 feet Sunday. Waves 10 to 14 feet Sunday
evening.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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