Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 051437
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
937 AM CDT Thu Jun 5 2025

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.

LSZ140-141-052215-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
937 AM CDT Thu Jun 5 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of
rain showers through the day. Slight chance of thunderstorms
late. Waves 1 foot or less.
.TONIGHT...Southwest wind 5 to 10 knots becoming west in the late
evening and early morning, then becoming north early in the
morning. Chance of rain showers through the night. Areas of smoke
after midnight. Waves 1 foot or less.
.FRIDAY...Northeast wind 5 knots becoming east late in the
morning, then becoming south in the afternoon. Areas of smoke
through the day. Slight chance of rain showers through the day.
Waves 1 foot or less.
.FRIDAY NIGHT...Southwest wind 5 to 10 knots becoming west in the
late evening and overnight. Partly cloudy. Waves 1 foot or less.

$$

LSZ142-143-052215-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
937 AM CDT Thu Jun 5 2025

.REST OF TODAY...South wind 5 knots becoming southeast late.
Slight chance of rain showers early in the afternoon. Slight
chance of thunderstorms in the afternoon. Chance of rain showers
late. Waves 1 foot or less.
.TONIGHT...Northeast wind 5 knots becoming north in the late
evening and overnight. Slight chance of thunderstorms in the
evening. Chance of rain showers through the night. Waves 1 foot
or less.
.FRIDAY...Northeast wind 5 knots becoming southeast in the
afternoon. Areas of smoke through the day. Chance of rain showers
through the day. Waves 1 foot or less.
.FRIDAY NIGHT...Southeast wind 5 knots becoming northeast in the
late evening and overnight. Partly cloudy. Waves 1 foot or less.

$$

LSZ144-052215-
Two Harbors to Duluth MN-
937 AM CDT Thu Jun 5 2025

.REST OF TODAY...South wind 5 knots becoming east late. Slight
chance of rain showers early in the afternoon. Chance of rain
showers and slight chance of thunderstorms late. Waves 1 foot or
less.
.TONIGHT...Northeast wind 5 knots. Slight chance of thunderstorms
in the evening. Chance of rain showers through the night. Waves
1 foot or less.
.FRIDAY...Northeast wind 5 knots becoming east in the late
morning and afternoon. Areas of smoke through the day. Chance of
rain showers through the day. Waves 1 foot or less.
.FRIDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy.
Waves 1 foot or less.

$$

LSZ145-052215-
Duluth MN to Port Wing WI-
937 AM CDT Thu Jun 5 2025

.REST OF TODAY...Southwest wind 5 knots becoming east in the
afternoon. Slight chance of showers and thunderstorms late. Waves
1 foot or less.
.TONIGHT...Northeast wind 5 knots. Slight chance of thunderstorms
in the evening. Chance of rain showers through the night. Waves
1 foot or less.
.FRIDAY...Northeast wind 5 to 10 knots. Chance of rain showers
through the day. Waves 1 foot or less.
.FRIDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy.
Waves 1 foot or less.

$$

LSZ146-052215-
Port Wing to Sand Island WI-
937 AM CDT Thu Jun 5 2025

.REST OF TODAY...West wind 5 knots becoming east in the
afternoon. Slight chance of showers and thunderstorms late. Waves
1 foot or less.
.TONIGHT...East wind 5 knots in the evening becoming variable
10 knots or less, then becoming southeast 5 knots early in the
morning. Slight chance of thunderstorms in the evening. Chance of
rain showers through the night. Waves 1 foot or less.
.FRIDAY...East wind 5 to 10 knots. Chance of rain showers. Waves
1 foot or less.
.FRIDAY NIGHT...Northeast wind 5 knots. Slight chance of rain
showers in the evening. Waves 1 foot or less.

$$

LSZ147-052215-
Sand Island to Bayfield WI-
937 AM CDT Thu Jun 5 2025

.REST OF TODAY...Southwest wind 5 knots becoming southeast in the
afternoon. Slight chance of rain showers late. Waves 1 foot or
less.
.TONIGHT...East wind 5 knots becoming southeast late in the
evening, then becoming north after midnight. Slight chance of
thunderstorms in the evening. Chance of rain showers through the
night. Waves 1 foot or less.
.FRIDAY...East wind 5 knots. Areas of smoke in the morning.
Chance of rain showers in the morning, then slight chance of rain
showers in the afternoon. Waves 1 foot or less.
.FRIDAY NIGHT...East wind 5 knots. Slight chance of rain showers
in the evening. Waves 1 foot or less.

$$

LSZ150-052215-
Outer Apostle Islands Beyond 5 NM from Mainland-
937 AM CDT Thu Jun 5 2025

.REST OF TODAY...Southwest wind 5 knots becoming southeast in the
afternoon. Slight chance of rain showers late. Waves 1 foot or
less.
.TONIGHT...East wind 5 knots becoming southeast late in the
evening, then becoming northeast after midnight. Chance of rain
showers. Waves 1 foot or less.
.FRIDAY...East wind 5 knots. Areas of smoke in the morning.
Chance of rain showers in the morning, then slight chance of rain
showers in the afternoon. Waves 1 foot or less.
.FRIDAY NIGHT...East wind 5 knots. Slight chance of rain showers
through the night. Waves 1 foot or less.

$$

LSZ121-052215-
Chequamegon Bay-Bayfield to Oak Point WI-
937 AM CDT Thu Jun 5 2025

.REST OF TODAY...South wind 5 knots becoming east in the
afternoon. Slight chance of rain showers late. Waves 1 foot or
less.
.TONIGHT...Northeast wind 5 knots becoming northwest after
midnight. Chance of rain showers and slight chance of
thunderstorms in the evening, then rain showers likely after
midnight. Waves 1 foot or less.
.FRIDAY...Northeast wind 5 knots. Rain showers likely. Waves
1 foot or less.
.FRIDAY NIGHT...East wind 5 knots becoming southeast early in the
morning. Partly cloudy. Waves 1 foot or less.

$$

LSZ148-052215-
Oak Point to Saxon Harbor WI-
937 AM CDT Thu Jun 5 2025

.REST OF TODAY...West wind 5 knots becoming east in the
afternoon. Mostly sunny. Waves 1 foot or less.
.TONIGHT...East wind 5 knots becoming north after midnight.
Chance of rain showers and slight chance of thunderstorms in the
evening, then rain showers likely after midnight. Waves 1 foot or
less.
.FRIDAY...Northeast wind 5 knots. Rain showers likely. Waves
1 foot or less.
.FRIDAY NIGHT...East wind 5 knots becoming southeast early in the
morning. Chance of rain showers in the evening. Waves 1 foot or
less.

$$

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

BJH