Marine Weather, NWS WFO Duluth, MN

Nearshore Forecast

599
FZUS53 KDLH 010654
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
154 AM CDT Wed Apr 1 2026

For waters within five nautical miles of shore on Lake Superior.

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.

LSZ140-011600-
Grand Portage to Grand Marais MN-
154 AM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY
MORNING...

.TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots late
in the afternoon. Mostly sunny until late afternoon then becoming
mostly cloudy. Waves 1 to 3 feet.
.TONIGHT...East wind 15 to 20 knots. Gusts up to 25 knots in the
late evening and overnight. Slight chance of snow after midnight.
Waves 4 to 6 feet. Waves occasionally to 8 feet.
.THURSDAY...East wind up to 30 knots with gales to around
35 knots becoming northeast gales to 35 knots with gales to
around 40 knots in the afternoon. Freezing spray through the day.
Slight chance of snow in the morning. Snow in the afternoon.
Waves 4 to 7 feet building to 7 to 12 feet in the late morning
and afternoon. Waves occasionally to 15 feet. A gale warning may
be needed.
.THURSDAY NIGHT...Northeast gales to 35 knots with gales to
around 45 knots easing to up to 30 knots with gales to around
45 knots in the late evening and overnight. Snow and slight
chance of light sleet in the evening. Slight chance of light
freezing rain through the night. Snow and light sleet likely
after midnight. Waves 7 to 12 feet subsiding to 4 to 6 feet.
Waves occasionally to 15 feet. A gale warning may be needed.

Note...Wave height forecasts are for ice free areas.

$$

LSZ141-011600-
Grand Marais to Taconite Harbor MN-
154 AM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.TODAY...East wind 15 to 20 knots. Partly sunny until late
afternoon then becoming cloudy. Waves 1 to 3 feet building to
2 to 4 feet in the afternoon.
.TONIGHT...East wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots early in the morning. Slight chance of
snow after midnight. Waves 4 to 7 feet. Waves occasionally to
9 feet.
.THURSDAY...East wind up to 30 knots. Gusts up to 35 knots
increasing to 40 knots in the afternoon. Freezing spray in the
morning. Snow likely in the morning, then snow in the afternoon.
Waves 5 to 8 feet building to 9 to 14 feet. Waves occasionally to
18 feet. A gale warning may be needed.
.THURSDAY NIGHT...Northeast wind up to 30 knots with gales to
around 40 knots becoming north 10 to 15 knots with gusts to
around 25 knots early in the morning. Snow and slight chance of
light sleet. Waves 9 to 14 feet subsiding to 4 to 7 feet. Waves
occasionally to 18 feet. A gale warning may be needed.

Note...Wave height forecasts are for ice free areas.

$$

LSZ142-011600-
Taconite Harbor to Silver Bay Harbor MN-
154 AM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.TODAY...East wind 15 to 20 knots. Gusts up to 25 knots. Slight
chance of snow in the morning. Waves 1 to 3 feet subsiding to
3 to 5 feet in the afternoon.
.TONIGHT...East wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots early in the morning. Slight chance of
snow through the night. Waves 4 to 7 feet. Waves occasionally to
9 feet.
.THURSDAY...East wind up to 30 knots. Gusts up to 35 knots
increasing to 40 knots in the late morning and afternoon.
Freezing spray in the morning. Snow through the day. Slight
chance of light sleet in the afternoon. Waves 5 to 8 feet
building to 10 to 15 feet. Waves occasionally to 19 feet. A gale
warning may be needed.
.THURSDAY NIGHT...Northeast wind up to 30 knots with gales to
around 40 knots becoming north 15 to 20 knots with gusts to
around 30 knots after midnight. Snow and light sleet. Waves 10 to
15 feet subsiding to 5 to 8 feet. Waves occasionally to 19 feet.
A gale warning may be needed.

Note...Wave height forecasts are for ice free areas.

$$

LSZ143-011600-
Silver Bay Harbor to Two Harbors MN-
154 AM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.TODAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots late
in the afternoon. Slight chance of snow in the morning. Waves
2 to 4 feet subsiding to 3 to 5 feet in the afternoon. Waves
occasionally to 7 feet.
.TONIGHT...East wind 20 to 25 knots. Gusts up to 25 knots
increasing to 30 knots in the late evening and overnight. Slight
chance of snow through the night. Waves 4 to 7 feet. Waves
occasionally to 9 feet.
.THURSDAY...Northeast wind up to 30 knots. Gusts up to 35 knots
increasing to 40 knots in the late morning and afternoon.
Freezing spray in the morning. Snow through the day. Slight
chance of light sleet in the afternoon. Waves 5 to 8 feet
building to 10 to 15 feet. Waves occasionally to 19 feet. A gale
warning may be needed.
.THURSDAY NIGHT...Northeast wind up to 30 knots with gales to
around 40 knots becoming north 15 to 20 knots with gusts to
around 30 knots after midnight. Snow and light sleet. Waves 10 to
15 feet subsiding to 5 to 8 feet. Waves occasionally to 19 feet.
A gale warning may be needed.

Note...Wave height forecasts are for ice free areas.

$$

LSZ144-011600-
Two Harbors to Duluth MN-
154 AM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.TODAY...East wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Slight chance of snow in
the morning. Waves 2 to 4 feet subsiding to 4 to 6 feet in the
afternoon. Waves occasionally to 7 feet.
.TONIGHT...East wind 20 to 25 knots with gusts to around
30 knots. Chance of snow through the night. Waves 4 to 7 feet.
Waves occasionally to 9 feet.
.THURSDAY...Northeast wind up to 30 knots. Gusts up to 35 knots
increasing to 40 knots in the late morning and afternoon. Snow
through the day. Slight chance of freezing rain and light sleet
in the afternoon. Waves 5 to 8 feet building to 9 to 14 feet.
Waves occasionally to 19 feet. A gale warning may be needed.
.THURSDAY NIGHT...Northeast wind up to 30 knots with gales to
around 40 knots becoming north 15 to 20 knots with gusts to
around 30 knots after midnight. Slight chance of freezing rain in
the evening. Snow and light sleet through the night. Waves 9 to
14 feet subsiding to 5 to 8 feet. Waves occasionally to 19 feet.
A gale warning may be needed.

Note...Wave height forecasts are for ice free areas.

$$

LSZ145-011600-
Duluth MN to Port Wing WI-
154 AM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.TODAY...East wind 20 to 25 knots. Slight chance of snow early in
the morning. Waves 4 to 6 feet. Waves occasionally to 7 feet.
.TONIGHT...East wind 20 to 25 knots. Gusts up to 30 knots late in
the evening decreasing to 25 knots, then increasing to 30 knots
early in the morning. Slight chance of snow in the evening, then
chance of snow after midnight. Waves 4 to 7 feet. Waves
occasionally to 9 feet.
.THURSDAY...Northeast wind up to 30 knots with gales to around
40 knots rising to gales to 35 knots with gales to around
40 knots late in the afternoon. Snow through the day. Slight
chance of freezing rain and light sleet in the afternoon. Waves
6 to 9 feet building to 8 to 13 feet in the afternoon. Waves
occasionally to 17 feet. A gale warning may be needed.
.THURSDAY NIGHT...Northeast gales to 35 knots with gales to
around 40 knots easing to up to 30 knots with gales to around
40 knots in the late evening and early morning, then becoming
north 10 to 15 knots with gusts to around 20 knots early in the
morning. Slight chance of light freezing rain in the evening.
Snow and light sleet through the night. Waves 9 to 14 feet
subsiding to 5 to 8 feet. Waves occasionally to 18 feet. A gale
warning may be needed.

Note...Wave height forecasts are for ice free areas.

$$

LSZ146-011600-
Port Wing to Sand Island WI-
154 AM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.TODAY...East wind 15 to 20 knots. Gusts up to 25 knots late in
the afternoon. Slight chance of snow early in the morning. Waves
3 to 5 feet.
.TONIGHT...East wind 20 to 25 knots. Gusts up to 25 knots
increasing to 30 knots early in the morning. Chance of snow.
Waves 4 to 6 feet. Waves occasionally to 8 feet.
.THURSDAY...East wind up to 30 knots with gales to around
40 knots rising to gales to 35 knots with gales to around
40 knots late in the afternoon. Snow through the day. Slight
chance of freezing rain and light sleet in the afternoon. Waves
4 to 7 feet building to 8 to 13 feet. Waves occasionally to
16 feet. A gale warning may be needed.
.THURSDAY NIGHT...Northeast gales to 35 knots with gales to
around 40 knots easing to up to 30 knots with gales to around
40 knots in the late evening and early morning, then becoming
north 15 to 20 knots with gusts to around 25 knots early in the
morning. Slight chance of freezing rain in the evening. Snow and
light sleet through the night. Waves 8 to 13 feet subsiding to
5 to 8 feet early in the morning. Waves occasionally to 17 feet.
A gale warning may be needed.

Note...Wave height forecasts are for ice free areas.

$$

LSZ147-011600-
Sand Island to Bayfield WI-
154 AM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.TODAY...East wind 15 to 20 knots. Gusts up to 25 knots. Mostly
cloudy. Waves 2 to 4 feet.
.TONIGHT...East wind 15 to 20 knots with gusts to around
25 knots. Slight chance of snow in the evening. Chance of snow
after midnight. Waves 3 to 5 feet. Waves occasionally to 7 feet.
.THURSDAY...East wind up to 30 knots. Gusts up to 30 knots
increasing to 40 knots. Snow through the day. Slight chance of
light sleet in the afternoon. Waves 4 to 6 feet building to 7 to
12 feet. Waves occasionally to 15 feet. A gale warning may be
needed.
.THURSDAY NIGHT...Northeast wind up to 30 knots with gales to
around 40 knots becoming north 15 to 20 knots with gusts to
around 25 knots early in the morning. Rain in the evening. Snow
and light sleet through the night. Waves 8 to 13 feet subsiding
to 6 to 9 feet early in the morning. Waves occasionally to
16 feet. A gale warning may be needed.

Note...Wave height forecasts are for ice free areas.

$$

LSZ150-011600-
Outer Apostle Islands Beyond 5 NM from Mainland-
154 AM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.TODAY...East wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots late in the afternoon. Mostly cloudy.
Waves 2 to 4 feet subsiding to 3 to 5 feet in the afternoon.
Waves occasionally to 7 feet.
.TONIGHT...East wind 20 to 25 knots with gusts to around
30 knots. Slight chance of snow. Waves 4 to 7 feet. Waves
occasionally to 9 feet.
.THURSDAY...East wind up to 30 knots with gales to around
40 knots rising to gales to 35 knots with gales to around
40 knots late in the afternoon. Snow through the day. Slight
chance of freezing rain and light sleet in the afternoon. Waves
5 to 8 feet building to 9 to 14 feet. Waves occasionally to
19 feet. A gale warning may be needed.
.THURSDAY NIGHT...Northeast wind up to 30 knots with gales to
around 40 knots becoming north 15 to 20 knots with gusts to
around 25 knots early in the morning. Slight chance of freezing
rain in the evening. Snow, light sleet and rain through the
night. Waves 10 to 15 feet subsiding to 8 to 11 feet early in the
morning. Waves occasionally to 19 feet. A gale warning may be
needed.

Note...Wave height forecasts are for ice free areas.

$$

LSZ148-011600-
Oak Point to Saxon Harbor WI-
154 AM CDT Wed Apr 1 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH LATE THURSDAY NIGHT...

.TODAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots.
Mostly cloudy. Waves 2 to 4 feet subsiding to 4 to 6 feet in the
afternoon. Waves occasionally to 7 feet.
.TONIGHT...East wind 15 to 20 knots with gusts to around
25 knots. Slight chance of snow in the evening. Snow likely after
midnight. Waves 4 to 6 feet. Waves occasionally to 8 feet.
.THURSDAY...Northeast wind 20 to 25 knots. Gusts up to 30 knots
increasing to 35 knots in the afternoon. Snow likely and slight
chance of light sleet in the morning, then snow, light sleet and
rain in the afternoon. Waves 4 to 6 feet building to 7 to
12 feet. Waves occasionally to 15 feet. A gale warning may be
needed.
.THURSDAY NIGHT...Northeast wind 20 to 25 knots with gales to
around 35 knots becoming north 15 to 20 knots early in the
morning. Snow in the evening. Rain and light sleet through the
night. Chance of snow after midnight. Waves 7 to 12 feet
subsiding to 6 to 9 feet early in the morning. Waves occasionally
to 16 feet. A gale warning may be needed.

Note...Wave height forecasts are for ice free areas.

$$

Graphical marine forecasts are available online at:
weather.gov/greatlakes

WFO DLH

Open Waters Forecast

508
FZUS63 KMQT 010201
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1000 PM EDT Tue Mar 31 2026

For waters beyond 5 nautical miles of shore on Lake Superior.

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...

This evening Lake Superior is between a 29.7 inch low over southern
Ontario and a 30.3 inch high over the North
Dakota/Saskatchewan/Manitoba triple point. By Wednesday afternoon,
the low pressure will depart to the east while the high phases with
another high and builds to 30.6 inches over James Bay. Wednesday
night, the high builds to 30.7 inches over Quebec while a 29.4 inch
Colorado Low moves into western Kansas. Throughout the day Thursday,
this low moves northeast, reaching Wisconsin at 29.5 inches Thursday
night. The low shifts to the Ontario/Quebec line at 29.7 inches
Friday while another Colorado Low moves into Kansas at 29.7 inches.
This low moves into eastern Iowa by Friday night as sprawling 30.7
inch high pressure resides over far northern Ontario and Hudson Bay.
The low moves through the Upper Great Lakes at 29.6 inches Saturday.
By Sunday, Lake Superior will be between the low at 29.4 inches over
western Quebec and a 30.3 inch high over the Great Plains.


LSZ162-010800-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1000 PM EDT Tue Mar 31 2026 /900 PM CDT Tue Mar 31 2026/

...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.REST OF TONIGHT...Northwest winds 10 to 20 knots veering
northeast after midnight, then increasing to 15 to 25 knots late.
A slight chance of snow showers by midnight. Waves 2 to 4 feet
subsiding to 1 to 3 feet, then building to 2 to 4 feet.
.WEDNESDAY...East winds 15 to 25 knots increasing to 20 to
30 knots late. A slight chance of snow by mid afternoon. Waves
building to 4 to 7 feet occasionally to 9 feet.
.WEDNESDAY NIGHT...East winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible late. A
chance of snow. Waves building to 7 to 10 feet occasionally to
13 feet.
.THURSDAY...East gales to 40 knots becoming northeast gales to
45 knots by mid afternoon. Snow, possibly mixed with sleet. A
slight chance of rain by mid afternoon. Waves building to 12 to
17 feet occasionally to 21 feet.
.THURSDAY NIGHT...Northeast gales to 45 knots becoming north
gales to 35 knots after midnight. Snow, possibly mixed with rain
and sleet through midnight, then a chance of snow after midnight.
Waves subsiding to 5 to 8 feet occasionally to 10 feet.
.FRIDAY...North winds 15 to 25 knots veering northeast by mid
afternoon. Waves subsiding to 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet.
.FRIDAY NIGHT...East winds 20 to 30 knots becoming northeast
gales to 35 knots after midnight. A chance of snow showers
through midnight, then snow showers, possibly mixed with rain
after midnight. Waves building to 9 to 12 feet occasionally to
15 feet.
.SATURDAY...Northeast winds 20 to 30 knots backing north. Snow
showers, then a chance of snow showers. Waves building to 10 to
14 feet occasionally to 18 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.SUNDAY...West winds 15 to 25 knots diminishing to 10 to
20 knots. Waves subsiding to calm to 2 feet.

$$

LSZ263-010800-
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-
1000 PM EDT Tue Mar 31 2026

...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.REST OF TONIGHT...Northeast winds 5 to 15 knots. A slight chance
of snow showers by midnight. Waves 2 to 4 feet.
.WEDNESDAY...East winds 10 to 20 knots increasing to 15 to
25 knots late. Waves building to 3 to 6 feet occasionally to
8 feet.
.WEDNESDAY NIGHT...East winds 15 to 25 knots. A chance of snow.
Waves building to 4 to 7 feet occasionally to 9 feet.
.THURSDAY...East gales to 45 knots. Snow likely through early
afternoon. A slight chance of sleet. Snow, possibly mixed with
rain and freezing rain by mid afternoon. Waves building to 11 to
15 feet occasionally to 19 feet.
.THURSDAY NIGHT...Northeast gales to 45 knots becoming north
gales to 35 knots after midnight. Snow, possibly mixed with rain
and sleet likely through midnight. A chance of freezing rain. A
chance of snow after midnight. Waves subsiding to 6 to 9 feet
occasionally to 11 feet.
.FRIDAY...North winds 15 to 25 knots veering northeast by mid
afternoon. Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.FRIDAY NIGHT...Northeast winds 20 to 30 knots veering east after
midnight. A chance of snow showers, possibly mixed with freezing
rain through midnight, then snow showers, possibly mixed with
rain after midnight. Waves building to 9 to 12 feet occasionally
to 15 feet.
.SATURDAY...Northeast winds 20 to 30 knots backing north. Snow
showers, possibly mixed with rain, then a chance of snow showers.
Waves building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 7 to 10 feet occasionally to 13 feet.
.SUNDAY...Northwest winds 20 to 30 knots becoming southwest 10 to
20 knots. Waves subsiding to 1 to 3 feet.

$$

LSZ264-010800-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1000 PM EDT Tue Mar 31 2026

...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.REST OF TONIGHT...Northeast winds 10 to 20 knots. Waves 2 to
4 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots veering east in the
afternoon, then increasing to 10 to 20 knots late. Waves
subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 20 knots increasing to 20 to
30 knots. A slight chance of snow. Waves building to 5 to 8 feet
occasionally to 10 feet.
.THURSDAY...East gales to 40 knots. Snow likely through early
afternoon. A slight chance of sleet. Snow, possibly mixed with
freezing rain by mid afternoon. Waves building to 10 to 14 feet
occasionally to 18 feet.
.THURSDAY NIGHT...Northeast gales to 40 knots becoming north
gales to 35 knots after midnight. Snow, possibly mixed with
freezing rain, rain and sleet through midnight, then a chance of
snow, possibly mixed with freezing rain after midnight. Freezing
spray after midnight. Waves subsiding to 6 to 9 feet occasionally
to 11 feet.
.FRIDAY...North winds 20 to 30 knots becoming northeast 15 to
25 knots by mid afternoon. Waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet.
.FRIDAY NIGHT...Northeast winds 20 to 30 knots veering east after
midnight. A chance of snow showers. A chance of freezing rain
after midnight. Waves building to 8 to 11 feet occasionally to
14 feet.
.SATURDAY...Northeast winds 20 to 30 knots becoming north gales
to 35 knots. Snow showers likely with pockets of freezing rain,
then a chance of snow showers. Waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet.
.SUNDAY...Northwest gales to 35 knots becoming southwest 10 to
20 knots. Waves subsiding to 1 to 3 feet.

$$

LSZ265-010800-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1000 PM EDT Tue Mar 31 2026

...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.REST OF TONIGHT...North winds 15 to 25 knots. Waves 2 to 4 feet.
.WEDNESDAY...Northeast winds 10 to 20 knots veering east in the
afternoon, then increasing to 15 to 25 knots late. Waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet.
.WEDNESDAY NIGHT...East winds 15 to 25 knots increasing to 20 to
30 knots after midnight. A chance of snow. Waves building to 5 to
8 feet occasionally to 10 feet.
.THURSDAY...East gales to 40 knots. Freezing spray through early
afternoon. A slight chance of freezing rain and sleet through
early afternoon. Snow. Sleet, possibly mixed with freezing rain
and rain by mid afternoon. Waves building to 10 to 14 feet
occasionally to 18 feet.
.THURSDAY NIGHT...East gales to 40 knots becoming north gales to
35 knots after midnight. Rain likely through midnight. A chance
of snow. A chance of rain after midnight. Waves subsiding to 6 to
9 feet occasionally to 11 feet.
.FRIDAY...Northwest winds 20 to 30 knots veering north by mid
afternoon. Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.FRIDAY NIGHT...Northeast winds 20 to 30 knots becoming east
gales to 35 knots after midnight. A chance of snow showers,
possibly mixed with freezing rain, rain showers and sleet through
midnight, then rain showers, freezing rain likely and snow
showers after midnight. Waves building to 8 to 11 feet
occasionally to 14 feet.
.SATURDAY...East gales to 35 knots backing north. Rain showers,
possibly mixed with freezing rain. Snow showers. Waves building
to 9 to 12 feet occasionally to 15 feet, then subsiding to 7 to
10 feet occasionally to 13 feet.
.SUNDAY...Northwest gales to 35 knots becoming west 15 to
25 knots. A chance of snow showers. Waves subsiding to calm to
2 feet.

$$

LSZ266-010800-
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-
1000 PM EDT Tue Mar 31 2026

...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.REST OF TONIGHT...North winds 15 to 25 knots veering northeast
late. Waves 2 to 4 feet.
.WEDNESDAY...Northeast winds 15 to 25 knots becoming east 10 to
20 knots in the afternoon. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...East winds 15 to 25 knots increasing to 20 to
30 knots late. A chance of snow. Waves building to 5 to 8 feet
occasionally to 10 feet.
.THURSDAY...East gales to 45 knots. A slight chance of freezing
rain through early afternoon. Snow, possibly mixed with sleet.
Freezing rain, possibly mixed with rain by mid afternoon. Waves
building to 10 to 14 feet occasionally to 18 feet.
.THURSDAY NIGHT...East gales to 40 knots becoming north gales to
35 knots after midnight. Rain, possibly mixed with freezing rain
and sleet through midnight. A chance of snow. A chance of rain,
possibly mixed with freezing rain after midnight. Waves subsiding
to 6 to 9 feet occasionally to 11 feet.
.FRIDAY...Northwest gales to 35 knots becoming north 20 to
30 knots by mid afternoon. Waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.FRIDAY NIGHT...Northeast winds 20 to 30 knots becoming east
gales to 35 knots after midnight. A chance of snow showers,
possibly mixed with rain and sleet through midnight. A chance of
freezing rain. Snow showers, possibly mixed with rain after
midnight. Waves subsiding to 3 to 5 feet occasionally to 7 feet,
then building to 8 to 11 feet occasionally to 14 feet.
.SATURDAY...East gales to 35 knots becoming north gales to
40 knots. Freezing rain. Snow showers, possibly mixed with rain.
Waves subsiding to 7 to 10 feet occasionally to 13 feet, then
building to 11 to 15 feet occasionally to 19 feet.
.SUNDAY...Northwest gales to 40 knots diminishing to 15 to
25 knots. A chance of snow showers. Waves subsiding to 3 to
6 feet occasionally to 8 feet.

$$

LSZ267-010800-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1000 PM EDT Tue Mar 31 2026

...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.REST OF TONIGHT...North winds 15 to 25 knots veering northeast
after midnight. Waves 2 to 4 feet building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
.WEDNESDAY...Northeast winds 10 to 20 knots. Waves subsiding to
calm to 2 feet.
.WEDNESDAY NIGHT...East winds 10 to 20 knots increasing to 20 to
30 knots. A chance of snow. Waves building to 3 to 6 feet
occasionally to 8 feet.
.THURSDAY...East gales to 40 knots. Snow, possibly mixed with
freezing rain and sleet. Rain by mid afternoon. Waves building to
7 to 10 feet occasionally to 13 feet.
.THURSDAY NIGHT...East gales to 35 knots becoming west 20 to
30 knots after midnight. Rain and a slight chance of
thunderstorms through midnight. A chance of snow. A chance of
rain after midnight. Waves subsiding to 3 to 6 feet occasionally
to 8 feet.
.FRIDAY...Northwest winds 20 to 30 knots becoming north 15 to
25 knots by mid afternoon. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet.
.FRIDAY NIGHT...Northeast winds 20 to 30 knots veering east after
midnight. Rain and snow showers likely, possibly mixed with
freezing rain after midnight. Waves building to 4 to 7 feet
occasionally to 9 feet.
.SATURDAY...East winds 20 to 30 knots becoming north gales to
35 knots. Freezing rain. Rain and snow showers. Waves building to
5 to 8 feet occasionally to 10 feet, then subsiding to 3 to
6 feet occasionally to 8 feet.
.SUNDAY...Northwest gales to 35 knots diminishing to 15 to
25 knots. A chance of snow showers. Waves subsiding to 3 to
6 feet occasionally to 8 feet.

$$

LSZ261-010800-
MAFOR 0103/
Superior West 11110 12120 12220 13230. A chance of snow Wednesday
evening. Waves 3 to 6 feet.

Superior North Central 14120 13210 11220. Waves 2 to 4 feet
overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet Wednesday.
Waves 1 to 3 feet Wednesday evening.

Superior South Central 12820 12120 11220 11210 11220 11230. A
chance of snow Wednesday evening. Waves 2 to 4 feet.

Superior East 14120 11120 11110 11120 11220. Waves 3 to 5 feet
overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet Wednesday.
Waves 1 to 3 feet Wednesday evening.

$$

WFO MQT

Experimental modernized open lake forecast is available online at
weather.gov/mqt/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes

Beach Hazards

This product is only issued between May 26th and October 1st.

Other Information

Great Lakes Water Levels and Forecasts - Provided by USACE

GLERL - NOAA Great Lakes Forecast System

NWS Marine Homepage

Cold Water Safety

Park Point Beach Information

Paddle Safe Twin Ports