A cold front will cross the Great Lakes and Northeast U.S. through Monday with gusty winds and areas of rain showers. A strong atmospheric river is expected to move into the Pacific Northwest by midweek bringing a threat for moderate to heavy rainfall, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >
FZUS63 KMQT 022115
GLFLS
Experimental Tabular Open Lake Forecast for Lake Superior
National Weather Service Negaunee MI
415 PM EST Sun Nov 2 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...A 29.2 inch low over far northern Ontario reaches Hudson Bay at 29.0
inches this evening, pulling a 29.6 inch trough across Lake Superior
from now until Monday morning. A 30.0 inch ridge then rebuilds over
the lake Monday night into Tuesday thanks to a 30.4 inch high
pressure over the Southeastern U.S. A 29.8 inch low then moves over
Lake Michigan Tuesday night, followed by a 30.2 inch high pressure
moving from the Northern Plains towards the Mid-Atlantic Wednesday
night into Thursday. Afterwards, a 29.4 inch low then moves through
the Great Lakes region Thursday night and Friday.
LSZ162-030900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 PM EST Sun Nov 2 2025 /301 PM CST Sun Nov 2 2025/
, GALE WARNING IN EFFECT THROUGH MONDAY AFTERNOON,
.LATE THIS AFTERNOON, Southwest gales to 45 knots. A slight
chance of showers. Waves 10 to 14 feet occasionally to 18 feet.
.TONIGHT, Southwest gales to 45 knots becoming west gales to
40 knots by midnight. Waves subsiding to 5 to 8 feet occasionally
to 10 feet, then building to 6 to 9 feet occasionally to 11 feet.
.MONDAY, West gales to 40 knots diminishing to 20 to 30 knots by
mid afternoon. Waves building to 7 to 10 feet occasionally to
13 feet, then subsiding to 4 to 7 feet occasionally to 9 feet.
.MONDAY NIGHT, West winds 20 to 30 knots diminishing to 10 to
20 knots. Waves subsiding to 2 to 4 feet.
.TUESDAY, West winds 10 to 20 knots becoming southwest 5 to
15 knots in the afternoon. Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT, West winds 10 to 20 knots veering north after
midnight. A chance of rain showers. Waves calm to 2 feet.
.WEDNESDAY, Northwest winds 15 to 25 knots backing west in the
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT, Northwest winds 5 to 15 knots backing west
after midnight. Waves calm to 2 feet.
.THURSDAY, South winds 10 to 20 knots increasing to 15 to
25 knots. A chance of rain showers. Waves building to 2 to
4 feet.
.FRIDAY, North winds 15 to 25 knots diminishing to 10 to
20 knots. A chance of rain showers. Waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to calm to 2 feet.
LSZ162-030300-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
415 PM EST Sun Nov 2 2025 /315 PM CST Sun Nov 2 2025/
...GALE WARNING IN EFFECT THROUGH MONDAY AFTERNOON...
.Tonight...
Weather.............Partly cloudy.
Sfc winds...........Southwest gales to 35 knots becoming west to 30
knots after midnight.
100-ft winds........Southwest gales to 45 knots becoming west at 35
knots after midnight.
Sig waves...........Ice covered.
Ocnl waves..........Around 18 feet.
.MONDAY...
Weather.............Sunny.
Sfc winds...........West to 30 knots.
100-ft winds........West gales to 35 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 15 feet.
.MONDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........West 20 to 25 knots.
100-ft winds........West to 30 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 10 feet.
.TUESDAY...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 6 feet subsiding to around 5 feet in the
afternoon.
.TUESDAY NIGHT...
Weather.............Mostly cloudy with chance of showers.
Sfc winds...........East 5 to 10 knots becoming north after
midnight.
100-ft winds........East 10 to 15 knots becoming north after
midnight.
Sig waves...........Ice covered.
Waves omitted due to ice coverage.
.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY...Chance of showers in the morning. South winds 15 to
20 knots.
.THURSDAY...Chance of showers. Northwest winds 10 to 15 knots.
.FRIDAY...Chance of showers. North winds 15 to 20 knots.
$$
LSZ263-030300-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
415 PM EST Sun Nov 2 2025
...GALE WARNING IN EFFECT THROUGH LATE MONDAY NIGHT...
.Tonight...
Weather.............Mostly cloudy with a slight chance of showers,
then partly cloudy after midnight.
Sfc winds...........Southwest gales to 40 knots.
100-ft winds........Southwest storm force winds to 50 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 23 feet.
.MONDAY...
Weather.............Sunny.
Sfc winds...........West gales to 35 knots.
100-ft winds........West gales to 45 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 19 feet.
.MONDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........West to 30 knots.
100-ft winds........West gales to 35 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 15 feet.
.TUESDAY...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 9 feet.
.TUESDAY NIGHT...
Weather.............Mostly cloudy, then chance of showers after
midnight.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 5 feet in the evening.
Waves omitted due to ice coverage.
.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY...Chance of showers in the morning. South winds 15 to
20 knots.
.THURSDAY...Chance of showers. Northwest winds 10 to 15 knots.
.FRIDAY...Chance of showers. North winds 15 to 20 knots.
$$
LSZ264-030300-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
415 PM EST Sun Nov 2 2025
...GALE WARNING IN EFFECT THROUGH LATE MONDAY NIGHT...
.Tonight...
Weather.............Mostly cloudy with a slight chance of showers.
Sfc winds...........Southwest gales to 40 knots becoming west at 35
knots after midnight.
100-ft winds........Southwest storm force winds to 50 knots
becoming west gales to 45 knots after midnight.
Sig waves...........Ice covered.
Ocnl waves..........Around 26 feet.
.MONDAY...
Weather.............Sunny.
Sfc winds...........West gales to 35 knots.
100-ft winds........West gales to 45 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 19 feet.
.MONDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........West to 30 knots.
100-ft winds........West gales to 35 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 16 feet.
.TUESDAY...
Weather.............Partly sunny.
Sfc winds...........West 20 to 25 knots.
100-ft winds........West to 30 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 10 feet.
.TUESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 7 feet subsiding to around 5 feet after
midnight.
Waves omitted due to ice coverage.
.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY...Chance of showers in the morning. South winds 15 to
20 knots.
.THURSDAY...Chance of showers. Northwest winds 10 to 15 knots.
.FRIDAY...Chance of showers. North winds 15 to 20 knots.
$$
LSZ265-030300-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
415 PM EST Sun Nov 2 2025
...GALE WARNING IN EFFECT THROUGH LATE MONDAY NIGHT...
.Tonight...
Weather.............Mostly cloudy with chance of showers.
Sfc winds...........Southwest gales to 35 knots.
100-ft winds........Southwest gales to 45 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 16 feet.
.MONDAY...
Weather.............Sunny.
Sfc winds...........West gales to 35 knots.
100-ft winds........West gales to 45 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 16 feet.
.MONDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........West to 30 knots.
100-ft winds........West gales to 35 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 13 feet.
.TUESDAY...
Weather.............Partly sunny.
Sfc winds...........West 15 to 20 knots.
100-ft winds........West 20 to 25 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 8 feet subsiding to around 5 feet in the
afternoon.
.TUESDAY NIGHT...
Weather.............Mostly cloudy, then chance of showers after
midnight.
Sfc winds...........Southwest 5 to 10 knots.
100-ft winds........Southwest 10 to 15 knots.
Sig waves...........Ice covered.
Waves omitted due to ice coverage.
.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY...Chance of showers in the morning. South winds 15 to
20 knots.
.THURSDAY...Chance of showers. Northwest winds 10 to 15 knots.
.FRIDAY...Chance of showers. North winds 15 to 20 knots.
$$
LSZ266-030300-
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 Sun Nov 2 2025
...GALE WARNING IN EFFECT THROUGH LATE MONDAY NIGHT...
.Tonight...
Weather.............Mostly cloudy with chance of showers.
Sfc winds...........Southwest gales to 40 knots.
100-ft winds........Southwest storm force winds to 50 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 25 feet.
.MONDAY...
Weather.............Mostly sunny with chance of showers, then sunny
in the afternoon.
Sfc winds...........West gales to 40 knots.
100-ft winds........West storm force winds to 50 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 23 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...........Ice covered.
Ocnl waves..........Around 20 feet.
.TUESDAY...
Weather.............Partly sunny.
Sfc winds...........West 20 to 25 knots.
100-ft winds........West to 30 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 12 feet.
.TUESDAY NIGHT...
Weather.............Mostly cloudy, then chance of showers after
midnight.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 7 feet subsiding to around 5 feet after
midnight.
Waves omitted due to ice coverage.
.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY...Chance of showers in the morning. South winds 15 to
20 knots.
.THURSDAY...Chance of showers. Northwest winds 10 to 15 knots.
.FRIDAY...Chance of showers. North winds 15 to 20 knots.
$$
LSZ267-030300-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
415 PM EST Sun Nov 2 2025
...GALE WARNING IN EFFECT THROUGH LATE MONDAY NIGHT...
.Tonight...
Weather.............Showers likely.
Sfc winds...........Southwest gales to 40 knots.
100-ft winds........Southwest storm force winds to 50 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 21 feet.
.MONDAY...
Weather.............Partly sunny with showers likely, then mostly
sunny in the afternoon.
Sfc winds...........West gales to 40 knots.
100-ft winds........West storm force winds to 50 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 24 feet.
.MONDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........West gales to 35 knots becoming northwest to 30
knots after midnight.
100-ft winds........West gales to 45 knots becoming northwest at 35
knots after midnight.
Sig waves...........Ice covered.
Ocnl waves..........Around 21 feet.
.TUESDAY...
Weather.............Partly sunny.
Sfc winds...........West 20 to 25 knots.
100-ft winds........West to 30 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 13 feet.
.TUESDAY NIGHT...
Weather.............Mostly cloudy, then chance of showers after
midnight.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........Ice covered.
Ocnl waves..........Around 8 feet subsiding to around 5 feet after
midnight.
Waves omitted due to ice coverage.
.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY...Chance of showers in the morning. South winds 15 to
20 knots.
.THURSDAY...Chance of showers. Northwest winds 10 to 15 knots.
.FRIDAY...Chance of showers. North winds 15 to 20 knots.
$$
LSZ261-030300-
MAFOR 0222/
Superior West...GALE WARNING IN EFFECT...12560 15650. Waves
omitted due to the lake being mostly ice covered.
Superior North Central...GALE WARNING IN EFFECT...11560 11570
11660 12650 12660 11650. A chance of showers this evening. Waves
omitted due to the lake being mostly ice covered.
Superior South Central...GALE WARNING IN EFFECT...11560 11550
12650 13660 11650. A chance of showers tonight. Waves omitted due
to the lake being mostly ice covered.
Superior East...GALE WARNING IN EFFECT...11560 11566 11556 13650
12660. Waves omitted due to the lake being mostly ice covered.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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