Nearshore Forecast

262
FZUS53 KDLH 300632
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
132 AM CDT Tue Sep 30 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.

LSZ140-301630-
Grand Portage to Grand Marais MN-
132 AM CDT Tue Sep 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...Northeast wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 25 knots in the late morning and early afternoon,
then increasing to 30 knots late in the afternoon. Mostly sunny.
Waves 3 to 5 feet.
.TONIGHT...Northeast wind 15 to 20 knots with gusts to around
30 knots becoming east 5 to 10 knots early in the morning.
Cloudy. Waves 3 to 5 feet.
.WEDNESDAY...East wind 5 to 10 knots. Mostly cloudy. Waves 1 to
3 feet.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming south 10 to
15 knots with gusts to around 25 knots in the late evening and
overnight. Mostly cloudy in the evening then becoming partly
cloudy. Waves 1 to 3 feet.

$$

LSZ141-301630-
Grand Marais to Taconite Harbor MN-
132 AM CDT Tue Sep 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...Northeast wind 15 to 20 knots with gusts to around
30 knots. Partly sunny. Waves 3 to 5 feet. Waves occasionally to
7 feet.
.TONIGHT...Northeast wind 15 to 20 knots with gusts to around
30 knots easing to 5 to 10 knots early in the morning. Cloudy.
Waves 3 to 5 feet. Waves occasionally to 7 feet.
.WEDNESDAY...East wind 5 to 10 knots. Mostly cloudy. Waves 1 to
3 feet subsiding to 1 to 2 feet in the late morning and
afternoon.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming south early
in the morning. Partly cloudy. Waves 1 to 2 feet.

$$

LSZ142-301630-
Taconite Harbor to Silver Bay Harbor MN-
132 AM CDT Tue Sep 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...Northeast wind 15 to 20 knots with gusts to around
30 knots. Mostly sunny until late afternoon then becoming mostly
cloudy. Waves 4 to 6 feet. Waves occasionally to 7 feet.
.TONIGHT...Northeast wind 15 to 20 knots with gusts to around
30 knots easing to 5 to 10 knots early in the morning. Cloudy.
Waves 4 to 6 feet. Waves occasionally to 8 feet.
.WEDNESDAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves
1 to 3 feet subsiding to 1 to 2 feet in the late morning and
afternoon.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming south after
midnight. Partly cloudy. Waves 1 to 2 feet.

$$

LSZ143-301630-
Silver Bay Harbor to Two Harbors MN-
132 AM CDT Tue Sep 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...Northeast wind 15 to 20 knots with gusts to around
30 knots. Partly sunny. Waves 4 to 6 feet. Waves occasionally to
7 feet.
.TONIGHT...Northeast wind 15 to 20 knots with gusts to around
25 knots easing to 5 to 10 knots early in the morning. Cloudy.
Waves 4 to 6 feet. Waves occasionally to 8 feet.
.WEDNESDAY...Northeast wind 10 to 15 knots. Mostly cloudy. Waves
1 to 3 feet subsiding to 1 to 2 feet in the late morning and
afternoon.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming south after
midnight. Partly cloudy. Waves 1 to 2 feet.

$$

LSZ144-301630-
Two Harbors to Duluth MN-
132 AM CDT Tue Sep 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...Northeast wind 15 to 20 knots. Gusts up to 30 knots
increasing to 30 knots late in the afternoon. Partly sunny. Waves
3 to 5 feet. Waves occasionally to 7 feet.
.TONIGHT...Northeast wind 15 to 20 knots with gusts to around
25 knots easing to 5 to 10 knots early in the morning. Cloudy.
Waves 4 to 6 feet. Waves occasionally to 7 feet.
.WEDNESDAY...East wind 10 to 15 knots. Mostly cloudy in the
morning then becoming mostly sunny. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming south 10 to
15 knots with gusts to around 20 knots after midnight. Partly
cloudy. Waves 1 to 2 feet.

$$

LSZ145-301630-
Duluth MN to Port Wing WI-
132 AM CDT Tue Sep 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...Northeast wind 15 to 20 knots with gusts to around
30 knots. Mostly cloudy. Waves 3 to 5 feet. Waves occasionally to
7 feet.
.TONIGHT...Northeast wind 15 to 20 knots with gusts to around
25 knots easing to 5 to 10 knots early in the morning. Cloudy.
Waves 4 to 6 feet. Waves occasionally to 7 feet.
.WEDNESDAY...East wind 5 to 10 knots. Partly sunny. Waves 1 to
3 feet.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming south 10 to
15 knots in the late evening and overnight. Partly cloudy. Waves
1 to 2 feet.

$$

LSZ146-301630-
Port Wing to Sand Island WI-
132 AM CDT Tue Sep 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...Northeast wind 15 to 20 knots. Gusts up to 25 knots in
the afternoon. Partly sunny. Waves 3 to 5 feet. Waves
occasionally to 7 feet.
.TONIGHT...Northeast wind 15 to 20 knots with gusts to around
25 knots easing to 5 to 10 knots early in the morning. Cloudy.
Waves 4 to 6 feet subsiding to 1 to 3 feet early in the morning.
Waves occasionally to 7 feet.
.WEDNESDAY...East wind 5 to 10 knots. Mostly cloudy. Waves 1 to
2 feet.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming south in the
late evening and overnight. Partly cloudy. Waves 1 foot or less.

$$

LSZ147-301630-
Sand Island to Bayfield WI-
132 AM CDT Tue Sep 30 2025

.TODAY...Northeast wind 10 to 15 knots with gusts to around
20 knots. Partly sunny. Waves 3 to 5 feet. Waves occasionally to
7 feet.
.TONIGHT...Northeast wind 10 to 15 knots with gusts to around
20 knots becoming east 5 to 10 knots after midnight. Mostly
cloudy. Waves 4 to 6 feet subsiding to 1 to 3 feet early in the
morning. Waves occasionally to 7 feet. A small craft advisory may
be needed.
.WEDNESDAY...East wind 5 to 10 knots. Mostly cloudy. Waves 1 to
2 feet.
.WEDNESDAY NIGHT...Southeast wind 5 to 10 knots with gusts to
around 20 knots becoming south with gusts to around 20 knots
after midnight. Partly cloudy. Waves 1 foot or less.

$$

LSZ150-301630-
Outer Apostle Islands Beyond 5 NM from Mainland-
132 AM CDT Tue Sep 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Partly sunny. Waves 4 to 6 feet. Waves occasionally to
8 feet.
.TONIGHT...Northeast wind 15 to 20 knots with gusts to around
25 knots becoming southeast 10 to 15 knots after midnight. Mostly
cloudy. Waves 4 to 7 feet subsiding to 2 to 4 feet early in the
morning. Waves occasionally to 9 feet.
.WEDNESDAY...East wind 5 to 10 knots. Mostly cloudy. Waves 1 to
3 feet.
.WEDNESDAY NIGHT...Southeast wind 5 to 10 knots with gusts to
around 20 knots becoming south 10 to 15 knots with gusts to
around 20 knots after midnight. Partly cloudy. Waves 1 to 2 feet.

$$

LSZ121-301630-
Chequamegon Bay-Bayfield to Oak Point WI-
132 AM CDT Tue Sep 30 2025

.TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Partly sunny. Waves 2 to 4 feet building to 3 to
5 feet late in the afternoon.
.TONIGHT...Northeast wind 10 to 15 knots with gusts to around
20 knots becoming southeast 5 knots after midnight. Mostly
cloudy. Waves 3 to 5 feet subsiding to 1 foot or less. Waves
occasionally to 7 feet. A small craft advisory may be needed.
.WEDNESDAY...Southeast wind 5 to 10 knots. Partly sunny. Waves
1 foot or less.
.WEDNESDAY NIGHT...South wind 5 to 10 knots with gusts to around
20 knots becoming 10 knots with gusts to around 20 knots early in
the morning. Partly cloudy. Waves 1 foot or less.

$$

LSZ148-301630-
Oak Point to Saxon Harbor WI-
132 AM CDT Tue Sep 30 2025

.TODAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Partly sunny. Waves 3 to 5 feet.
.TONIGHT...Northeast wind 10 to 15 knots with gusts to around
20 knots becoming southeast late in the evening, then easing to
5 knots after midnight. Mostly cloudy. Waves 3 to 5 feet
subsiding to 1 to 2 feet early in the morning. Waves occasionally
to 7 feet. A small craft advisory may be needed.
.WEDNESDAY...Southeast wind 5 to 10 knots. Mostly cloudy. Waves
1 to 2 feet.
.WEDNESDAY NIGHT...South wind 10 to 15 knots. Gusts up to
20 knots in the late evening and overnight. Partly cloudy. Waves
1 to 2 feet.

$$

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

Wolfe

Open Waters Forecast

887
FZUS63 KMQT 300801
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
401 AM EDT Tue Sep 30 2025

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...

A 30.4 inch high pressure over northern Ontario will build to 30.5
inches this morning, centering over James Bay this afternoon, then
shifting southeast over Quebec to New England through Thursday. This
extends 30.1 to 30.3 inch ridging over Lake Superior during this
timeframe. Ridging over Lake Superior weakens to 30.0 inches by
Friday morning as the high settles south. A 29.9 inch shortwave low
then moves across the western end of Lake Superior Friday night into
Saturday. This is quickly followed up by another low pressure system
lifting northeast over the Midwest late in the day Saturday,
continuing to extend troughing over Lake Superior the remainder of
the weekend.


LSZ162-302000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 AM EDT Tue Sep 30 2025 /301 AM CDT Tue Sep 30 2025/

.EARLY THIS MORNING...Northeast winds 15 to 25 knots. Waves 2 to
4 feet building to 3 to 5 feet occasionally to 7 feet.
.TODAY...Northeast winds 15 to 25 knots. Waves building to 4 to
7 feet occasionally to 9 feet.
.TONIGHT...Northeast winds 10 to 20 knots becoming east 5 to
15 knots late. Waves subsiding to 1 to 3 feet.
.WEDNESDAY...East winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...South winds 5 to 15 knots. Waves building to
1 to 3 feet.
.THURSDAY...South winds 5 to 15 knots. Waves subsiding to calm to
2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. Waves calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots. A chance of
thunderstorms. Showers likely. Waves calm to 2 feet.
.SATURDAY...Southwest winds 10 to 20 knots backing east. A chance
of showers. Waves calm to 2 feet.

$$

LSZ263-302000-
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-
401 AM EDT Tue Sep 30 2025

.EARLY THIS MORNING...East winds 10 to 20 knots. Waves 3 to
6 feet occasionally to 8 feet.
.TODAY...East winds 15 to 25 knots. Waves 3 to 6 feet
occasionally to 8 feet.
.TONIGHT...East winds 10 to 20 knots veering southeast after
midnight, then diminishing to 5 to 15 knots late. Waves subsiding
to 2 to 4 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots becoming east 10 to
20 knots late. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots. Waves subsiding to
1 to 3 feet.
.THURSDAY...South winds 10 to 20 knots. Waves subsiding to calm
to 2 feet.
.THURSDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. Waves building to 1 to 3 feet.
.FRIDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of thunderstorms. Showers likely. Waves
subsiding to calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots backing southeast. A
chance of showers. Waves calm to 2 feet.

$$

LSZ264-302000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 AM EDT Tue Sep 30 2025

.EARLY THIS MORNING...East winds 10 to 20 knots. Waves 3 to
6 feet occasionally to 8 feet.
.TODAY...East winds 15 to 25 knots. Waves subsiding to 3 to
5 feet occasionally to 7 feet.
.TONIGHT...East winds 10 to 20 knots veering southeast after
midnight. Waves 3 to 5 feet occasionally to 7 feet.
.WEDNESDAY...Southeast winds 15 to 25 knots. Waves building to
3 to 6 feet occasionally to 8 feet.
.WEDNESDAY NIGHT...South winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. Waves subsiding to 2 to 4 feet.
.THURSDAY...South winds 10 to 20 knots. Waves 2 to 4 feet.
.THURSDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. Waves subsiding to 1 to 3 feet.
.FRIDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots. Showers likely and a chance of thunderstorms. Waves
subsiding to calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots backing south. A chance
of showers. Waves calm to 2 feet.

$$

LSZ265-302000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 AM EDT Tue Sep 30 2025

.EARLY THIS MORNING...East winds 10 to 20 knots. Waves calm to
2 feet building to 2 to 4 feet.
.TODAY...East winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. Waves building to 3 to 5 feet occasionally to
7 feet.
.TONIGHT...East winds 10 to 20 knots veering southeast after
midnight. Waves subsiding to 2 to 4 feet.
.WEDNESDAY...Southeast winds 15 to 25 knots. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...South winds 15 to 25 knots. Waves subsiding to
calm to 2 feet.
.THURSDAY...South winds 15 to 25 knots. Waves calm to 2 feet.
.THURSDAY NIGHT...South winds 15 to 25 knots becoming southwest
10 to 20 knots after midnight. Waves calm to 2 feet.
.FRIDAY...South winds 10 to 20 knots veering southwest. A chance
of showers. Waves calm to 2 feet.
.SATURDAY...Southwest winds 10 to 20 knots backing south. A
chance of showers. Waves calm to 2 feet.

$$

LSZ266-302000-
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-
401 AM EDT Tue Sep 30 2025

.EARLY THIS MORNING...East winds 10 to 20 knots. Waves 2 to
4 feet building to 3 to 5 feet occasionally to 7 feet.
.TODAY...East winds 10 to 20 knots. Waves building to 3 to 6 feet
occasionally to 8 feet.
.TONIGHT...East winds 10 to 20 knots veering southeast after
midnight. Waves subsiding to 2 to 4 feet.
.WEDNESDAY...Southeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. Waves building to 3 to 6 feet
occasionally to 8 feet.
.WEDNESDAY NIGHT...South winds 15 to 25 knots. Waves subsiding to
2 to 4 feet.
.THURSDAY...South winds 15 to 25 knots. Waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet.
.THURSDAY NIGHT...South winds 15 to 25 knots. Waves subsiding to
2 to 4 feet.
.FRIDAY...South winds 10 to 20 knots. A chance of showers. Waves
subsiding to 1 to 3 feet.
.SATURDAY...Southwest winds 10 to 20 knots backing south. A
chance of showers. Waves subsiding to calm to 2 feet.

$$

LSZ267-302000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 AM EDT Tue Sep 30 2025

.EARLY THIS MORNING...East winds 10 to 20 knots. Waves 1 to
3 feet building to 2 to 4 feet.
.TODAY...East winds 15 to 25 knots diminishing to 10 to 20 knots
in the afternoon. Waves subsiding to calm to 2 feet.
.TONIGHT...East winds 10 to 20 knots veering southeast after
midnight. Waves building to 2 to 4 feet.
.WEDNESDAY...Southeast winds 10 to 20 knots. Waves subsiding to
1 to 3 feet.
.WEDNESDAY NIGHT...Southeast winds 15 to 25 knots veering south
after midnight. Waves building to 2 to 4 feet.
.THURSDAY...South winds 15 to 25 knots. Waves 2 to 4 feet.
.THURSDAY NIGHT...South winds 15 to 25 knots. Waves 2 to 4 feet.
.FRIDAY...South winds 15 to 25 knots. A chance of showers. A
chance of thunderstorms. Waves subsiding to 1 to 3 feet.
.SATURDAY...South winds 10 to 20 knots. A chance of showers.
Waves subsiding to calm to 2 feet.

$$

LSZ261-301400-
MAFOR 3009/
Superior West 15130 11220 11210. Waves 3 to 6 feet today. Waves 4
to 7 feet subsiding to 3 to 6 feet tonight.

Superior North Central 15230 12320. Waves 3 to 6 feet.

Superior South Central 12220 13230 11220 12320. Waves 1 to 2 feet
building to 3 to 5 feet today. Waves 3 to 5 feet subsiding to 2
to 3 feet tonight.

Superior East 13230 14220 11320. Waves 2 to 4 feet building to 3
to 5 feet, then subsiding to 2 to 4 feet today. Waves 1 to 3 feet
tonight.

$$

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

422
FZUS53 KDLH 300632
SRFDLH

Surf Zone Forecast
National Weather Service Duluth MN
132 AM CDT Tue Sep 30 2025

MNZ037-WIZ001-010045-
Carlton/Southern St. Louis-Douglas-
Including the beaches of Minnesota/Park Point and Wisconsin Point
132 AM CDT Tue Sep 30 2025

...BEACH HAZARDS STATEMENT IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH THIS EVENING...

.TODAY...
Swim Risk*..................High.
Wave Height.................3 to 5 feet.
UV Index**..................Moderate
Water Temperature...........In the upper 50s.
Weather.....................Partly sunny.
High Temperature............In the lower 60s.
Winds.......................Breezy. Northeast winds 20 to 25 mph.
Sunrise.....................7:05 AM.
Sunset......................6:53 PM.

.WEDNESDAY...
Swim Risk*..................Moderate.
Wave Height.................2 to 3 feet.
Weather.....................Mostly cloudy until 1 PM, then mostly
sunny.
High Temperature............Around 70.
Winds.......................East winds around 10 mph.
Sunrise.....................7:06 AM.
Sunset......................6:50 PM.

.THURSDAY...Wave height around 1 foot. Sunny. Highs in the upper 70s.
South winds around 15 mph.
.FRIDAY...Wave height around 1 foot. Mostly sunny. A slight chance of
showers. Highs in the upper 70s. Southwest winds around 10 mph.
.SATURDAY...Wave height 1 foot or less. Partly sunny. A chance of
showers and a slight chance of thunderstorms. Highs in the lower 70s.
Southeast winds around 10 mph.

&&

* PLEASE NOTE this is the last scheduled SURF ZONE FORECAST (SRF) for
the 2025 season. The SURF ZONE FORECAST will resume again on June
1, 2026.

Swim Risk Category
* Low Risk - Large waves and dangerous currents are not expected,
however dangerous currents may exist at any time near piers,
breakwalls, and river outlets.
* Moderate Risk - Breaking waves and currents are expected. Stay away
from dangerous areas like piers, breakwalls, and river outlets.
Always have a flotation device with you in the water.
* High Risk - Life-threatening waves and currents are expected. Stay
out of the water and stay away from dangerous areas like piers and
breakwalls.

** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/dlh


$$

Wolfe

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