Nearshore Marine Forecast
Issued by NWS Duluth, MN

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500
FZUS53 KDLH 171500
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1000 AM CDT Fri May 17 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.

LSZ140-141-172200-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
1000 AM CDT Fri May 17 2024

.REST OF TODAY...South wind 5 to 10 knots becoming east late.
Slight chance of thunderstorms early in the afternoon. Chance of
rain showers in the afternoon. Waves 1 foot or less.
.TONIGHT...Northeast wind 10 to 15 knots. Chance of rain showers
and slight chance of thunderstorms in the evening. Waves 1 to
2 feet.
.SATURDAY...East wind 5 to 10 knots becoming southeast late in
the afternoon. Patchy fog in the morning. Chance of rain showers
and slight chance of thunderstorms through the day. Waves 1 to
3 feet.
.SATURDAY NIGHT...West wind 5 to 10 knots. Mostly clear. Waves
1 to 3 feet.

$$

LSZ142-143-172200-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
1000 AM CDT Fri May 17 2024

.REST OF TODAY...East wind 5 to 10 knots becoming northeast 15 to
20 knots in the afternoon. Chance of rain showers through the
day. Slight chance of thunderstorms in the afternoon. Waves 1 to
2 feet building to 1 to 3 feet late.
.TONIGHT...Northeast wind 15 to 20 knots easing to 5 to 10 knots
after midnight. Slight chance of thunderstorms in the evening.
Chance of rain showers through the night. Chance of thunderstorms
after midnight. Patchy fog after midnight. Waves 1 to 3 feet.
.SATURDAY...Northeast wind 5 to 10 knots becoming southwest 10 to
15 knots with gusts to around 20 knots late in the afternoon.
Patchy fog in the morning. Chance of rain showers and slight
chance of thunderstorms through the day. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
early in the evening. Mostly clear. Waves 1 to 2 feet.

$$

LSZ144-172200-
Two Harbors to Duluth MN-
1000 AM CDT Fri May 17 2024

.REST OF TODAY...Northeast wind 15 to 20 knots. Patchy fog late
in the morning. Chance of rain showers through the day. Slight
chance of thunderstorms in the afternoon. Waves 1 to 2 feet
building to 1 to 3 feet late.
.TONIGHT...Northeast wind 15 to 20 knots easing to 5 to 10 knots
after midnight. Slight chance of thunderstorms in the evening.
Chance of rain showers through the night. Chance of thunderstorms
after midnight. Patchy fog after midnight. Waves 1 to 3 feet
subsiding to 1 to 2 feet early in the morning.
.SATURDAY...East wind 10 to 15 knots becoming southeast with
gusts to around 20 knots early in the afternoon, then becoming
southwest with gusts to around 20 knots late in the afternoon.
Patchy fog in the morning. Chance of thunderstorms in the
morning. Chance of rain showers through the day. Slight chance of
thunderstorms in the afternoon. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
early in the evening. Clear. Waves 1 to 3 feet.

$$

LSZ145-172200-
Duluth MN to Port Wing WI-
1000 AM CDT Fri May 17 2024

.REST OF TODAY...Northeast wind 15 to 20 knots. Patchy fog late
in the morning. Chance of rain showers through the day. Slight
chance of thunderstorms early in the afternoon, then chance of
thunderstorms late. Waves 1 to 2 feet building to 1 to 3 feet
late.
.TONIGHT...Northeast wind 15 to 20 knots easing to 5 to 10 knots
after midnight. Patchy fog through the night. Chance of showers
and thunderstorms in the evening. Slight chance of showers and
thunderstorms after midnight. Waves 2 to 4 feet subsiding to 1 to
2 feet early in the morning.
.SATURDAY...East wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots late in the
afternoon. Patchy fog in the morning. Chance of rain showers and
slight chance of thunderstorms through the day. Waves 1 to
3 feet.
.SATURDAY NIGHT...West wind 15 to 20 knots becoming southwest
5 to 10 knots after midnight. Clear. Waves 1 to 3 feet.

$$

LSZ146-172200-
Port Wing to Sand Island WI-
1000 AM CDT Fri May 17 2024

.REST OF TODAY...Northeast wind 15 to 20 knots. Patchy fog late
in the morning. Slight chance of rain showers late in the
morning, then chance of rain showers and slight chance of
thunderstorms in the afternoon. Waves 1 to 2 feet building to
1 to 3 feet late.
.TONIGHT...Northeast wind 15 to 20 knots easing to 5 to 10 knots
after midnight. Chance of rain showers and slight chance of
thunderstorms in the evening. Waves 2 to 4 feet subsiding to 1 to
3 feet after midnight.
.SATURDAY...East wind 5 to 10 knots becoming north early in the
afternoon, then becoming west with gusts to around 20 knots late
in the afternoon. Chance of rain showers and slight chance of
thunderstorms. Waves 1 to 2 feet.
.SATURDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots in the evening. Mostly clear. Waves 1 to 3 feet.

$$

LSZ147-172200-
Sand Island to Bayfield WI-
1000 AM CDT Fri May 17 2024

.REST OF TODAY...East wind 10 to 15 knots becoming northeast
late. Slight chance of rain showers late in the morning, then
chance of rain showers and slight chance of thunderstorms in the
afternoon. Waves 1 to 2 feet.
.TONIGHT...Northeast wind 10 to 15 knots. Chance of showers and
thunderstorms in the evening. Waves 1 to 3 feet.
.SATURDAY...Southeast wind 5 to 10 knots becoming southwest 10 to
15 knots with gusts to around 20 knots in the afternoon. Slight
chance of rain showers in the morning. Slight chance of
thunderstorms through the day. Chance of rain showers in the
afternoon. Waves 1 to 2 feet.
.SATURDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots in the evening. Mostly clear. Waves 1 to 3 feet.

$$

LSZ150-172200-
Outer Apostle Islands Beyond 5 NM from Mainland-
1000 AM CDT Fri May 17 2024

.REST OF TODAY...Southeast wind 5 to 10 knots becoming east 10 to
15 knots in the afternoon. Slight chance of rain showers early in
the afternoon. Chance of rain showers and slight chance of
thunderstorms late. Waves 1 to 2 feet.
.TONIGHT...East wind 10 to 15 knots. Chance of rain showers and
slight chance of thunderstorms in the evening. Waves 1 to 3 feet.
.SATURDAY...Southeast wind 5 to 10 knots becoming west 10 to
15 knots with gusts to around 20 knots late in the afternoon.
Slight chance of rain showers in the morning. Slight chance of
thunderstorms through the day. Chance of rain showers in the
afternoon. Waves 1 to 3 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots becoming southwest early in the morning. Mostly clear.
Waves 1 to 3 feet.

$$

LSZ121-172200-
Chequamegon Bay-Bayfield to Oak Point WI-
1000 AM CDT Fri May 17 2024

.REST OF TODAY...East wind 5 to 10 knots becoming northeast late.
Slight chance of thunderstorms early in the afternoon. Chance of
rain showers in the afternoon. Chance of thunderstorms late.
Waves 1 foot or less.
.TONIGHT...Northeast wind 5 to 10 knots becoming southeast early
in the morning. Chance of showers and thunderstorms in the
evening. Waves 1 foot or less.
.SATURDAY...South wind 10 to 15 knots with gusts to around
20 knots becoming southwest with gusts to around 25 knots in the
afternoon. Slight chance of rain showers in the morning. Slight
chance of thunderstorms through the day. Chance of rain showers
in the afternoon. Waves 1 to 2 feet.
.SATURDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots early in the evening. Mostly clear. Waves 1 foot or
less.

$$

LSZ148-172200-
Oak Point to Saxon Harbor WI-
1000 AM CDT Fri May 17 2024

.REST OF TODAY...East wind 5 to 10 knots. Slight chance of
thunderstorms early in the afternoon. Chance of rain showers in
the afternoon. Chance of thunderstorms late. Waves 1 to 2 feet.
.TONIGHT...Northeast wind 5 to 10 knots becoming southeast early
in the morning. Chance of showers and thunderstorms in the
evening. Waves 1 to 2 feet.
.SATURDAY...South wind 10 to 15 knots with gusts to around
20 knots becoming southwest with gusts to around 20 knots in the
afternoon. Slight chance of rain showers in the morning. Slight
chance of thunderstorms through the day. Chance of rain showers
in the afternoon. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots becoming southwest 5 to 10 knots in the late evening and
overnight. Mostly clear. Waves 1 to 2 feet.

$$

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

JDS