FZUS63 KMQT 032115
GLFLS

Experimental Tabular Open Lake Forecast for Lake Superior
National Weather Service Negaunee MI
415 PM EST Tue Feb 3 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 30.3 inch high over the Midwest and Upper Great Lakes will build
to 30.4 inches overnight and remain over the area through Wednesday.
Meanwhile, a 29.6 inch low will move into northern Saskatchewan,
reaching northern Manitoba Wednesday night. This will bring a 29.9
inch through over Lake Superior by Thursday afternoon as the low
moves into northern Ontario. The trough will deepen to 29.6 inches
over the lake on Thursday night as low pressure over James Bay
deepens. The trough pushes east Friday night with a 30.4 inch high
moving over the lake on Saturday. The high will shift east on Sunday
with 30.2 inch ridging over the lake.


LSZ162-040900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 PM EST Tue Feb 3 2026 /300 PM CST Tue Feb 3 2026/

.LATE THIS AFTERNOON, Southwest winds 5 to 15 knots. Waves calm
to 2 feet.
.TONIGHT, Southwest winds 5 to 15 knots veering west by
midnight. Waves calm to 2 feet.
.WEDNESDAY, West winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT, West winds 5 to 15 knots becoming southwest
10 to 20 knots by midnight, then increasing to 15 to 25 knots
late. A chance of snow showers. Waves building to 1 to 3 feet.
.THURSDAY, Southwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. A slight chance of snow showers in the
morning. Waves subsiding to calm to 2 feet.
.THURSDAY NIGHT, West winds 15 to 25 knots veering northwest
after midnight. A chance of rain showers in the evening. A chance
of snow showers. Waves building to 1 to 3 feet.
.FRIDAY, North winds 15 to 25 knots. Waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.FRIDAY NIGHT, North winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.SATURDAY, Southeast winds 5 to 15 knots backing east. Waves
calm to 2 feet.
.SUNDAY, East winds 5 to 15 knots veering south. Waves calm to
2 feet.

Note, wave height forecasts are for ice free areas.

LSZ162-040300-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
415 PM EST Tue Feb 3 2026 /315 PM CST Tue Feb 3 2026/

.Tonight...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 5 to 10 knots.
100-ft winds........Southwest 10 to 15 knots.
Sig waves...........2 feet or less.

.WEDNESDAY...
Weather.............Partly sunny.
Sfc winds...........North 5 to 10 knots becoming west in the
                              afternoon.
100-ft winds........North 10 to 15 knots becoming west in the
                              afternoon.
Sig waves...........2 feet or less.

.WEDNESDAY NIGHT...
Weather.............Cloudy, then chance of snow showers after
                              midnight.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.

.THURSDAY...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........3 to 5 feet subsiding to 2 to 4 feet in the
                              afternoon.
Ocnl waves..........Around 5 feet.

.THURSDAY NIGHT...
Weather.............Mostly cloudy with chance of rain and snow
                              showers, then mostly cloudy after midnight.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet.

Wave heights are for ice free areas.

.FORECAST DAYS 3 THROUGH 5...

.FRIDAY...Windy. Heavy freezing spray. Northwest winds to
30 knots. Waves 15 to 20 feet.
.SATURDAY...North winds 10 to 15 knots. Waves 6 to 9 feet.
.SUNDAY...North winds 10 to 15 knots. Waves 5 to 7 feet.

$$

LSZ263-040300-
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-
415 PM EST Tue Feb 3 2026

.Tonight...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 5 to 10 knots.
100-ft winds........Southwest 10 to 15 knots.
Sig waves...........1 to 3 feet.

.WEDNESDAY...
Weather.............Partly sunny.
Sfc winds...........Southwest 5 to 10 knots.
100-ft winds........Southwest 10 to 15 knots.
Sig waves...........2 to 4 feet.

.WEDNESDAY NIGHT...
Weather.............Cloudy, then chance of snow showers after
                              midnight.
Sfc winds...........West 5 to 10 knots increasing to southwest 15
                              to 20 knots after midnight.
100-ft winds........West 10 to 15 knots increasing to southwest 20
                              to 25 knots after midnight.
Sig waves...........1 to 3 feet building to 3 to 5 feet after
                              midnight.
Ocnl waves..........Around 6 feet after midnight.

.THURSDAY...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 20 to 25 knots.
100-ft winds........Southwest to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 8 feet.

.THURSDAY NIGHT...
Weather.............Mostly cloudy with chance of snow showers.
Sfc winds...........West 15 to 20 knots.
100-ft winds........West 20 to 25 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 8 feet.

Wave heights are for ice free areas.

.FORECAST DAYS 3 THROUGH 5...

.FRIDAY...Windy. Heavy freezing spray. Northwest winds to
30 knots. Waves 15 to 20 feet.
.SATURDAY...North winds 10 to 15 knots. Waves 6 to 9 feet.
.SUNDAY...North winds 10 to 15 knots. Waves 5 to 7 feet.

$$

LSZ264-040300-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
415 PM EST Tue Feb 3 2026

.Tonight...
Weather.............Mostly cloudy.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........2 to 4 feet.

.WEDNESDAY...
Weather.............Partly sunny.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet.

.WEDNESDAY NIGHT...
Weather.............Cloudy, then chance of snow showers after
                              midnight.
Sfc winds...........Northwest 5 to 10 knots becoming south 10 to 15
                              knots after midnight.
100-ft winds........Northwest 10 to 15 knots becoming south 15 to
                              20 knots after midnight.
Sig waves...........2 to 4 feet building to 3 to 5 feet after
                              midnight.
Ocnl waves..........Around 6 feet after midnight.

.THURSDAY...
Weather.............Cloudy with chance of snow showers and freezing
                              spray, then cloudy with chance of snow 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 8 feet.

.THURSDAY NIGHT...
Weather.............Cloudy with chance of snow showers, then mostly
                              cloudy with freezing spray with a chance of
                              snow showers after midnight.
Sfc winds...........West 15 to 20 knots increasing to northwest to
                              30 knots after midnight.
100-ft winds........West 20 to 25 knots increasing to northwest
                              gales to 35 knots after midnight.
Sig waves...........4 to 6 feet building to 8 to 12 feet after
                              midnight.
Ocnl waves..........Around 8 feet building to around 13 feet after
                              midnight.

Wave heights are for ice free areas.

.FORECAST DAYS 3 THROUGH 5...

.FRIDAY...Windy. Heavy freezing spray. Northwest winds to
30 knots. Waves 15 to 20 feet.
.SATURDAY...North winds 10 to 15 knots. Waves 6 to 9 feet.
.SUNDAY...North winds 10 to 15 knots. Waves 5 to 7 feet.

$$

LSZ265-040300-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
415 PM EST Tue Feb 3 2026

.Tonight...
Weather.............Mostly cloudy.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........3 to 5 feet subsiding to 2 to 4 feet after
                              midnight.
Ocnl waves..........Around 5 feet in the evening.

.WEDNESDAY...
Weather.............Partly sunny.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet.

.WEDNESDAY NIGHT...
Weather.............Mostly cloudy, then chance of snow showers
                              after midnight.
Sfc winds...........West 5 to 10 knots becoming southwest after
                              midnight.
100-ft winds........West 10 to 15 knots becoming southwest after
                              midnight.
Sig waves...........2 to 4 feet.

.THURSDAY...
Weather.............Mostly cloudy with chance of snow showers, then
                              mostly cloudy in the afternoon.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.

.THURSDAY NIGHT...
Weather.............Mostly cloudy with chance of snow showers.
Sfc winds...........West 10 to 15 knots increasing to 20 to 25
                              knots after midnight.
100-ft winds........West 15 to 20 knots increasing to 30 knots
                              after midnight.
Sig waves...........2 to 4 feet building to 6 to 9 feet after
                              midnight.
Ocnl waves..........Around 10 feet after midnight.

Wave heights are for ice free areas.

.FORECAST DAYS 3 THROUGH 5...

.FRIDAY...Windy. Heavy freezing spray. Northwest winds to
30 knots. Waves 14 to 18 feet.
.SATURDAY...North winds 10 to 15 knots. Waves 5 to 7 feet.
.SUNDAY...North winds 10 to 15 knots. Waves 4 to 6 feet.

$$

LSZ266-040300-
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-
415 PM EST Tue Feb 3 2026

.Tonight...
Weather.............Mostly cloudy with scattered snow showers.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots becoming north after
                              midnight.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 6 feet.

.WEDNESDAY...
Weather.............Partly sunny with scattered snow showers, then
                              partly sunny in the afternoon.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet building to 3 to 5 feet in the
                              afternoon.
Ocnl waves..........Around 5 feet in the afternoon.

.WEDNESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northwest 10 to 15 knots becoming west after
                              midnight.
100-ft winds........Northwest 15 to 20 knots becoming west after
                              midnight.
Sig waves...........3 to 5 feet subsiding to 2 to 4 feet after
                              midnight.
Ocnl waves..........Around 5 feet.

.THURSDAY...
Weather.............Mostly cloudy with chance of snow showers.
Sfc winds...........South 15 to 20 knots.
100-ft winds........South 20 to 25 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 9 feet.

.THURSDAY NIGHT...
Weather.............Snow showers likely, then mostly cloudy with
                              freezing spray with a chance of snow showers
                              after midnight.
Sfc winds...........Southwest 15 to 20 knots increasing to west to
                              30 knots after midnight.
100-ft winds........Southwest 20 to 25 knots increasing to west
                              gales to 35 knots after midnight.
Sig waves...........4 to 6 feet building to 8 to 12 feet after
                              midnight.
Ocnl waves..........Around 8 feet building to around 14 feet after
                              midnight.

Wave heights are for ice free areas.

.FORECAST DAYS 3 THROUGH 5...

.FRIDAY...Windy. Heavy freezing spray. Northwest winds to
30 knots. Waves 15 to 20 feet.
.SATURDAY...North winds 10 to 15 knots. Waves 6 to 9 feet.
.SUNDAY...North winds 10 to 15 knots. Waves 5 to 7 feet.

$$

LSZ267-040300-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
415 PM EST Tue Feb 3 2026

.Tonight...
Weather.............Mostly cloudy with scattered snow showers.
Sfc winds...........Northeast 10 to 15 knots.
100-ft winds........Northeast 15 to 20 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 5 feet.

.WEDNESDAY...
Weather.............Partly sunny with scattered snow showers.
Sfc winds...........East 5 to 10 knots becoming west 10 to 15 knots
                              in the afternoon.
100-ft winds........East 10 to 15 knots becoming west 15 to 20
                              knots in the afternoon.
Sig waves...........2 to 4 feet building to 3 to 5 feet in the
                              afternoon.
Ocnl waves..........Around 5 feet in the afternoon.

.WEDNESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northwest 10 to 15 knots becoming southwest
                              after midnight.
100-ft winds........Northwest 15 to 20 knots becoming southwest
                              after midnight.
Sig waves...........3 to 5 feet subsiding to 2 to 4 feet after
                              midnight.
Ocnl waves..........Around 5 feet.

.THURSDAY...
Weather.............Mostly cloudy with chance of snow showers.
Sfc winds...........South 15 to 20 knots.
100-ft winds........South 20 to 25 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.

.THURSDAY NIGHT...
Weather.............Snow showers likely, then snow showers likely
                              and freezing spray after midnight.
Sfc winds...........Southwest 15 to 20 knots becoming west 20 to 25
                              knots after midnight.
100-ft winds........Southwest 20 to 25 knots becoming west to 30
                              knots after midnight.
Sig waves...........4 to 6 feet building to 8 to 12 feet after
                              midnight.
Ocnl waves..........Around 8 feet building to around 13 feet after
                              midnight.

Wave heights are for ice free areas.

.FORECAST DAYS 3 THROUGH 5...

.FRIDAY...Windy. Heavy freezing spray. Northwest winds to
30 knots. Waves 15 to 20 feet.
.SATURDAY...North winds 10 to 15 knots. Waves 6 to 9 feet.
.SUNDAY...North winds 10 to 15 knots. Waves 5 to 7 feet.

$$

LSZ261-040300-
MAFOR 0322/
Superior West 16600. Waves 1 foot or less. Wave heights are for
ice free areas.

Superior North Central 13710 11700 14710. Waves 1 to 3 feet.

Superior South Central 12720 14610 11620 11720. Waves 2 to 4 feet
subsiding to 1 to 3 feet tonight. Waves 2 feet or less Wednesday.
Wave heights are for ice free areas.

Superior East 11820 11820 19827 11810 19817 11800 19807 11100
19107 11610 19617 11620 19627 11720 19727. Waves 1 to 3 feet.

$$

Occasional waves will only be displayed when values meet or exceed 5 feet.

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