Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 181503
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1003 AM CDT Sat May 18 2024

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.

LSZ140-141-182215-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
1003 AM CDT Sat May 18 2024

.REST OF TODAY...East wind 5 to 10 knots becoming southeast late.
Rain showers likely and slight chance of thunderstorms late in
the morning, then chance of showers and thunderstorms in the
afternoon. Waves 1 to 3 feet.
.TONIGHT...Southwest wind 10 to 15 knots with gusts to around
20 knots. Mostly clear. Waves 1 to 3 feet.
.SUNDAY...Southwest wind 15 to 20 knots. Gusts up to 25 knots in
the afternoon. Sunny. Waves 1 to 3 feet building to 2 to 4 feet
in the late morning and afternoon.
.SUNDAY NIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots becoming north 5 knots after midnight, then
becoming east early in the morning. Slight chance of rain showers
in the evening, then chance of rain showers after midnight. Waves
1 to 3 feet subsiding to 1 to 2 feet in the late evening and
overnight.

$$

LSZ142-143-182215-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
1003 AM CDT Sat May 18 2024

.REST OF TODAY...Northeast wind 10 to 15 knots becoming southwest
with gusts to around 20 knots late. Slight chance of
thunderstorms late in the morning. Chance of rain showers through
the day. Chance of thunderstorms in the afternoon. Waves 1 to
3 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the evening. Mostly clear. Waves 1 to 3 feet.
.SUNDAY...Southwest wind 10 to 15 knots. Mostly sunny. Waves 1 to
2 feet.
.SUNDAY NIGHT...South wind 5 to 10 knots becoming northeast after
midnight. Slight chance of rain showers. Waves 1 to 2 feet.

$$

LSZ144-145-182215-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
1003 AM CDT Sat May 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 PM CDT THIS EVENING...

.REST OF TODAY...Northeast wind 10 to 15 knots with gusts to
around 20 knots becoming west with gusts to around 25 knots late.
Slight chance of showers and thunderstorms late in the morning.
Chance of showers and thunderstorms in the afternoon. Waves 1 to
3 feet.
.TONIGHT...West wind 15 to 20 knots with gusts to around 25 knots
becoming southwest 5 to 10 knots early in the morning. Clear.
Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight.
.SUNDAY...Southwest wind 5 to 10 knots. Sunny in the morning then
becoming partly sunny. Waves 1 to 2 feet.
.SUNDAY NIGHT...East wind 5 to 10 knots. Chance of rain showers
in the evening, then rain showers likely and slight chance of
thunderstorms after midnight. Waves 1 foot or less.

$$

LSZ146-182215-
Port Wing to Sand Island WI-
1003 AM CDT Sat May 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 PM CDT THIS EVENING...

.REST OF TODAY...North wind 10 to 15 knots becoming west with
gusts to around 20 knots late. Slight chance of thunderstorms
late in the morning. Chance of rain showers through the day.
Chance of thunderstorms in the afternoon. Waves 1 to 3 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Mostly clear. Waves 2 to 4 feet subsiding to
1 to 2 feet early in the morning.
.SUNDAY...Southwest wind 10 knots rising to 10 to 15 knots in the
late morning and afternoon. Sunny in the morning then becoming
partly sunny. Waves 1 to 2 feet.
.SUNDAY NIGHT...Southeast wind 5 to 10 knots becoming east early
in the morning. Slight chance of rain showers in the evening,
then rain showers likely and slight chance of thunderstorms after
midnight. Waves 1 foot or less.

$$

LSZ147-182215-
Sand Island to Bayfield WI-
1003 AM CDT Sat May 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 PM CDT THIS EVENING...

.REST OF TODAY...East wind 5 to 10 knots becoming west with gusts
to around 20 knots early in the afternoon, then rising to 10 to
15 knots with gusts to around 20 knots late. Slight chance of
thunderstorms late in the morning. Chance of rain showers through
the day. Chance of thunderstorms in the afternoon. Waves 1 to
2 feet.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots until
early morning. Mostly clear. Waves 1 to 3 feet.
.SUNDAY...Southwest wind 10 to 15 knots. Mostly sunny. Waves 1 to
2 feet.
.SUNDAY NIGHT...Southeast wind 5 to 10 knots becoming east early
in the morning. Slight chance of rain showers. Waves 1 foot or
less.

$$

LSZ150-182215-
Outer Apostle Islands Beyond 5 NM from Mainland-
1003 AM CDT Sat May 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 PM CDT THIS EVENING...

.REST OF TODAY...East wind 5 to 10 knots becoming southwest 10 to
15 knots with gusts to around 20 knots late. Slight chance of
thunderstorms late in the morning. Chance of rain showers through
the day. Chance of thunderstorms in the afternoon. Waves 1 to
3 feet.
.TONIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Mostly clear. Waves 2 to 4 feet subsiding to 1 to
3 feet early in the morning.
.SUNDAY...Southwest wind 10 to 15 knots. Mostly sunny. Waves 1 to
2 feet.
.SUNDAY NIGHT...Southeast wind 5 to 10 knots. Slight chance of
rain showers in the evening, then chance of rain showers after
midnight. Waves 1 to 2 feet.

$$

LSZ121-182215-
Chequamegon Bay-Bayfield to Oak Point WI-
1003 AM CDT Sat May 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.REST OF TODAY...South wind 5 to 10 knots with gusts to around
20 knots becoming southwest 10 to 15 knots with gusts to around
25 knots in the afternoon. Slight chance of thunderstorms late in
the morning. Chance of rain showers through the day. Chance of
thunderstorms in the afternoon. Waves 1 foot or less.
.TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots
becoming southwest 5 to 10 knots with gusts to around 20 knots in
the late evening and overnight. Slight chance of showers and
thunderstorms in the evening. Waves 1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots. Sunny in the morning then
becoming partly sunny. Waves 1 foot or less.
.SUNDAY NIGHT...Southeast wind 5 knots. Slight chance of rain
showers in the evening, then rain showers likely and slight
chance of thunderstorms after midnight. Waves 1 foot or less.

$$

LSZ148-182215-
Oak Point to Saxon Harbor WI-
1003 AM CDT Sat May 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.REST OF TODAY...South wind 10 to 15 knots with gusts to around
25 knots becoming southwest with gusts to around 25 knots late.
Slight chance of thunderstorms late in the morning. Chance of
rain showers through the day. Chance of thunderstorms in the
afternoon. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the evening. Slight chance of showers and thunderstorms in the
evening. Waves 1 to 2 feet.
.SUNDAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves
1 foot or less.
.SUNDAY NIGHT...Southeast wind 5 to 10 knots. Slight chance of
rain showers in the evening, then rain showers likely and slight
chance of thunderstorms after midnight. Waves 1 foot or less.

$$

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

JDS