FZUS63 KMQT 281416
GLFLS

Experimental Tabular Open Lake Forecast for Lake Superior
National Weather Service Negaunee MI
1016 AM EDT Tue Apr 28 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 29.4 inch low just northeast of Lake Superior this morning tracks
to James Bay by this evening and then continues into northern Quebec
on Wednesday. Weak ridging of 30.1 inches builds over the lake on
Wednesday between 30.3 inch high pressure over the Canadian Prairie
and 29.7 inch troughing over the Eastern Seaboard. High pressure
gradually strengthens to 30.2 inches over the lake through Friday as
the Canadian high shifts east to northern Ontario and Hudson Bay.
Weak troughing of 29.9 inches moves over the lake on Saturday and
strengthens to 29.7 inches through Sunday as low pressure deepens to
29.6 inches over James Bay.


LSZ162-282215-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1007 AM EDT Tue Apr 28 2026 /907 AM CDT Tue Apr 28 2026/

.REST OF TODAY, West winds 20 to 30 knots diminishing to 15 to
25 knots late. Waves 3 to 6 feet occasionally to 8 feet subsiding
to 1 to 3 feet.
.TONIGHT, Northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.WEDNESDAY, West winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. A slight chance of rain showers by mid afternoon. Waves
calm to 2 feet.
.WEDNESDAY NIGHT, Northwest winds 5 to 15 knots veering north
after midnight. Waves calm to 2 feet.
.THURSDAY, North winds 5 to 15 knots backing southwest by mid
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT, North winds 5 to 15 knots. Waves calm to
2 feet.
.FRIDAY, North winds 5 to 15 knots backing northwest. Waves calm
to 2 feet.
.SATURDAY, Southwest winds 5 to 15 knots veering west. Waves
calm to 2 feet.

LSZ162-282000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1016 AM EDT Tue Apr 28 2026 /916 AM CDT Tue Apr 28 2026/

.This Afternoon...
Weather.............Mostly sunny.
Sfc winds...........West 20 to 25 knots.
100-ft winds........West to 30 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 10 feet.

.TONIGHT...
Weather.............Partly cloudy.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........3 to 5 feet subsiding to 2 to 4 feet after
                              midnight.
Ocnl waves..........Around 6 feet in the evening.

.WEDNESDAY...
Weather.............Mostly sunny.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........2 feet or less.

.WEDNESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........1 to 3 feet.


.FORECAST DAYS 3 THROUGH 5...

.THURSDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.FRIDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...Northwest winds 10 to 15 knots. Waves 3 to 5 feet.

$$

LSZ263-282000-
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-
1016 AM EDT Tue Apr 28 2026

...GALE WARNING IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.This Afternoon...
Weather.............Partly sunny.
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.

.TONIGHT...
Weather.............Partly cloudy.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........6 to 9 feet subsiding to 2 to 4 feet after
                              midnight.
Ocnl waves..........Around 10 feet subsiding to around 5 feet after
                              midnight.

.WEDNESDAY...
Weather.............Mostly sunny.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........1 to 3 feet.

.WEDNESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 5 to 10 knots becoming northwest
                              after midnight.
100-ft winds........Southwest 10 to 15 knots becoming northwest
                              after midnight.
Sig waves...........1 to 3 feet.


.FORECAST DAYS 3 THROUGH 5...

.THURSDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.FRIDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...Northwest winds 10 to 15 knots. Waves 3 to 5 feet.

$$

LSZ264-282000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1016 AM EDT Tue Apr 28 2026

...GALE WARNING IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.This Afternoon...
Weather.............Mostly cloudy with a slight chance of showers,
                              then partly sunny in the afternoon.
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.

.TONIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........6 to 9 feet subsiding to 3 to 5 feet after
                              midnight.
Ocnl waves..........Around 11 feet subsiding to around 6 feet after
                              midnight.

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

.WEDNESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........West 5 to 10 knots becoming northwest 10 to 15
                              knots after midnight.
100-ft winds........West 10 to 15 knots becoming northwest 15 to 20
                              knots after midnight.
Sig waves...........1 to 3 feet.


.FORECAST DAYS 3 THROUGH 5...

.THURSDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.FRIDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...Northwest winds 10 to 15 knots. Waves 3 to 5 feet.

$$

LSZ265-282000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1016 AM EDT Tue Apr 28 2026

...GALE WARNING IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.This Afternoon...
Weather.............Partly sunny.
Sfc winds...........West gales to 35 knots decreasing to 30 knots
                              in the afternoon.
100-ft winds........West gales to 45 knots decreasing to 35 knots
                              in the afternoon.
Sig waves...........8 to 12 feet.
Ocnl waves..........Around 15 feet.

.TONIGHT...
Weather.............Partly cloudy.
Sfc winds...........West 15 to 20 knots decreasing to 5 to 10 knots
                              after midnight.
100-ft winds........West 20 to 25 knots decreasing to 10 to 15
                              knots after midnight.
Sig waves...........6 to 9 feet subsiding to 2 to 4 feet after
                              midnight.
Ocnl waves..........Around 10 feet in the evening.

.WEDNESDAY...
Weather.............Mostly sunny.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........1 to 3 feet.

.WEDNESDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........1 to 3 feet.


.FORECAST DAYS 3 THROUGH 5...

.THURSDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.FRIDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...Northwest winds 10 to 15 knots. Waves 3 to 5 feet.

$$

LSZ266-282000-
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-
1016 AM EDT Tue Apr 28 2026

...GALE WARNING IN EFFECT UNTIL 6 PM EDT THIS EVENING...

.This Afternoon...
Weather.............Mostly cloudy with a slight chance of showers
                              and patchy fog, then partly sunny in the
                              afternoon.
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.

.TONIGHT...
Weather.............Partly cloudy.
Sfc winds...........West 20 to 25 knots becoming northwest 10 to 15
                              knots after midnight.
100-ft winds........West to 30 knots becoming northwest 15 to 20
                              knots after midnight.
Sig waves...........10 to 14 feet subsiding to 6 to 9 feet after
                              midnight.
Ocnl waves..........Around 18 feet subsiding to around 10 feet
                              after midnight.

.WEDNESDAY...
Weather.............Mostly sunny.
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 in the
                              afternoon.
Ocnl waves..........Around 6 feet in the morning.

.WEDNESDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........North 10 to 15 knots becoming northwest after
                              midnight.
100-ft winds........North 15 to 20 knots becoming northwest after
                              midnight.
Sig waves...........2 to 4 feet.


.FORECAST DAYS 3 THROUGH 5...

.THURSDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.FRIDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...Northwest winds 10 to 15 knots. Waves 3 to 5 feet.

$$

LSZ267-282000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1016 AM EDT Tue Apr 28 2026

...GALE WARNING IN EFFECT UNTIL 6 PM EDT THIS EVENING...

.This Afternoon...
Weather.............Mostly cloudy with chance of showers, then
                              partly sunny in the afternoon.
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.

.TONIGHT...
Weather.............Partly cloudy.
Sfc winds...........West 20 to 25 knots.
100-ft winds........West to 30 knots.
Sig waves...........12 to 16 feet subsiding to 6 to 9 feet after
                              midnight.
Ocnl waves..........Around 19 feet subsiding to around 12 feet
                              after midnight.

.WEDNESDAY...
Weather.............Mostly sunny.
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 in the
                              afternoon.
Ocnl waves..........Around 7 feet in the morning.

.WEDNESDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.


.FORECAST DAYS 3 THROUGH 5...

.THURSDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.FRIDAY...North winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...Northwest winds 10 to 15 knots. Waves 3 to 5 feet.

$$

LSZ261-282000-
MAFOR 2815/
Superior West...GALE WARNING IN EFFECT...11640 11630 11620 11710
14700. Waves 4 to 7 feet subsiding to 3 to 6 feet this afternoon.
Waves 2 to 4 feet subsiding to 1 foot or less tonight. Waves 1
foot or less Wednesday morning.

Superior North Central...GALE WARNING IN EFFECT...12650 11640
11720 12710 12700. Waves 6 to 10 feet this afternoon. Waves 4 to
7 feet subsiding to 1 to 3 feet tonight. Waves 1 to 2 feet
Wednesday morning.

Superior South Central...GALE WARNING IN EFFECT...11660 11650
11640 11630 12720 12710. Waves 8 to 11 feet this afternoon. Waves
5 to 8 feet subsiding to 1 to 3 feet tonight. Waves 2 feet or
less Wednesday morning.

Superior East...GALE WARNING IN EFFECT...12660 11650 11640 11730
11720 12710. Waves 8 to 11 feet building to 11 to 15 feet this
afternoon. Waves 10 to 13 feet subsiding to 4 to 7 feet tonight.
Waves 2 to 4 feet Wednesday morning.

$$

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

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