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Marine Observations for Lake Superior
Regional Radars
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Northern Plains Great Lakes

 

Local Radars
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DLH Reflectivity DLH Velocity       MQT Reflectivity MQT Velocity
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Nearshore Forecast


276
FZUS53 KDLH 170224
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
924 PM CDT Sun Jun 16 2019

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.

LSZ140-141-171015-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
924 PM CDT Sun Jun 16 2019

.REST OF TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy.
Waves 2 feet or less.
.MONDAY...East wind 5 to 10 knots. Slight chance of rain showers
through the day. Waves 2 feet or less.
.MONDAY NIGHT...Northeast wind 5 to 10 knots. Chance of rain
showers. Waves 2 feet or less.
.TUESDAY...East wind 5 knots. Slight chance of rain showers
through the day. Waves 2 feet or less.

$$

LSZ142-143-171015-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
924 PM CDT Sun Jun 16 2019

.REST OF TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy
then becoming partly cloudy after midnight then becoming mostly
cloudy. Waves 2 feet or less.
.MONDAY...Northeast wind 5 to 10 knots. Slight chance of rain
showers in the morning, then chance of rain showers in the
afternoon. Waves 2 feet or less.
.MONDAY NIGHT...North wind 5 to 10 knots. Chance of rain showers
in the evening, then slight chance of rain showers after
midnight. Waves 2 feet or less.
.TUESDAY...East wind 5 to 10 knots. Slight chance of rain showers
through the day. Waves 2 feet or less.

$$

LSZ144-145-171015-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
924 PM CDT Sun Jun 16 2019

.REST OF TONIGHT...Northeast wind 10 to 15 knots easing to
5 knots toward daybreak. Slight chance of rain showers toward
daybreak. Waves 1 to 3 feet subsiding to 2 feet or less after
midnight.
.MONDAY...Northeast wind 5 to 10 knots. Slight chance of rain
showers in the morning, then chance of rain showers in the
afternoon. Waves 2 feet or less.
.MONDAY NIGHT...Northeast wind 5 to 10 knots becoming west early
in the morning. Chance of rain showers in the evening, then
slight chance of rain showers after midnight. Waves 2 feet or
less.
.TUESDAY...Northeast wind 5 to 10 knots. Slight chance of rain
showers. Waves 2 feet or less.

$$

LSZ146-147-171015-
Port Wing to Sand Island WI-Sand Island to Bayfield WI-
924 PM CDT Sun Jun 16 2019

.REST OF TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy
then becoming partly cloudy after midnight then becoming mostly
cloudy. Waves 1 to 3 feet.
.MONDAY...Northeast wind 5 to 10 knots. Slight chance of rain
showers through the day. Waves 2 feet or less.
.MONDAY NIGHT...Northeast wind 5 to 10 knots becoming west early
in the morning. Chance of rain showers in the evening, then
slight chance of rain showers after midnight. Waves 2 feet or
less.
.TUESDAY...Northeast wind 5 to 10 knots. Slight chance of rain
showers through the day. Waves 2 feet or less.

$$

LSZ121-148-171015-
Chequamegon Bay-Bayfield to Oak Point WI-
Oak Point to Saxon Harbor WI-
924 PM CDT Sun Jun 16 2019

.REST OF TONIGHT...North wind 5 knots. Mostly cloudy then
becoming partly cloudy after midnight then becoming mostly
cloudy. Waves 2 feet or less.
.MONDAY...East wind 5 knots becoming northeast in the afternoon.
Slight chance of rain showers in the afternoon. Waves 2 feet or
less.
.MONDAY NIGHT...Northeast wind 5 to 10 knots becoming west after
midnight. Slight chance of rain showers. Waves 2 feet or less.
.TUESDAY...Northeast wind 5 to 10 knots. Slight chance of rain
showers. Waves 2 feet or less.

$$

JTS


Duluth, MichiganLSZ140 Grand Portage to Grank Marais MN LSZ141 Grand Marais to Taconite Harbor MN LSZ142 Taconite Harbor to Silver Bay Harbor MN LSZ143 Silver Bay Harbor to Two Harbors MN LSZ144 Two Harbors to Duluth MN LSZ145 Duluth MN to Port Wing WI LSZ146 Port Wing to Sand Island WI LSZ147 Sand Island to Bayfield WI LSZ148 Oak Point to Saxon Harbor WI LSZ121 Chequamegon Bay - Bayfield to Oak Point WI LSZ140 Grand Portage to Grank Marais MN LSZ141 Grand Marais to Taconite Harbor MN LSZ142 Taconite Harbor to Silver Bay Harbor MN LSZ143 Silver Bay Harbor to Two Harbors MN LSZ144 Two Harbors to Duluth MN LSZ145 Duluth MN to Port Wing WI LSZ146 Port Wing to Sand Island WI LSZ147 Sand Island to Bayfield WI LSZ148 Oak Point to Saxon Harbor WI LSZ121 Chequamegon Bay - Bayfield to Oak Point WI

Open Waters Forecast


000
FZUS63 KMQT 170124
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
924 PM EDT Sun Jun 16 2019

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 high pressure ridge of 30.0 inches over Lake Superior
this evening will linger across the region into Monday evening. A
29.9 inch trough will move across Lake Superior through Tuesday as
the ridge returns by Tuesday night. A 29.6 inch low will track
northeast out of the Central Plains on Wednesday as the ridge slowly
diminishes to 29.8 inches. The low will reach the Ohio Valley on
Thursday morning at 29.5 inches. Meanwhile, a high pressure at 29.9
inches builds to 30.0 inches over the Upper Great Lakes through
Friday.

LSZ162-170930-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
924 PM EDT Sun Jun 16 2019 /824 PM CDT Sun Jun 16 2019/

.REST OF TONIGHT...Northeast winds 5 to 15 knots diminishing to
less than 10 knots late. A slight chance of rain showers after
midnight. Waves 1 to 3 feet subsiding to calm to 2 feet.
.MONDAY...East winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon. A slight chance of rain showers. Waves
calm to 2 feet.
.MONDAY NIGHT...Northeast winds 5 to 15 knots diminishing to less
than 10 knots after midnight, then increasing to 5 to 15 knots
late. A chance of rain showers. Waves calm to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots. A slight chance of rain
showers. Waves calm to 2 feet.
.TUESDAY NIGHT...Northeast winds 5 to 15 knots becoming north
less than 10 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots veering east by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Northeast winds 5 to 15 knots diminishing to
less than 10 knots after midnight. Waves calm to 2 feet.
.THURSDAY...East winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of showers. Waves calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots. A chance of showers. Waves
calm to 2 feet.

$$

LSZ263-170930-
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-
924 PM EDT Sun Jun 16 2019

.REST OF TONIGHT...East winds 5 to 15 knots diminishing to less
than 10 knots late. Waves calm to 2 feet.
.MONDAY...East winds less than 10 knots increasing to 5 to
15 knots in the afternoon. A chance of rain showers by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Northeast winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots backing north by mid
afternoon. A slight chance of rain showers. Waves calm to 2 feet.
.TUESDAY NIGHT...North winds 5 to 15 knots backing northwest
after midnight. Waves calm to 2 feet.
.WEDNESDAY...Northeast winds less than 10 knots increasing to
5 to 15 knots by mid afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Northeast winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...East winds 5 to 15 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots. A chance of showers. Waves
calm to 2 feet.

$$

LSZ264-170930-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
924 PM EDT Sun Jun 16 2019

.REST OF TONIGHT...East winds less than 10 knots veering
southeast late. Waves calm to 2 feet.
.MONDAY...Southeast winds less than 10 knots becoming east 5 to
15 knots in the afternoon. A chance of rain showers by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots backing northeast late.
A chance of rain showers. Waves calm to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots diminishing to less than
10 knots by mid afternoon. A slight chance of rain showers. Waves
calm to 2 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots veering northwest after
midnight. Waves calm to 2 feet.
.WEDNESDAY...Northeast winds less than 10 knots backing west by
mid afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Northwest winds less than 10 knots becoming
northeast 5 to 15 knots after midnight. Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots diminishing to less than
10 knots. A chance of showers. Waves calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots veering south. A chance of
showers. Waves calm to 2 feet.

$$

LSZ265-170930-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
924 PM EDT Sun Jun 16 2019

.REST OF TONIGHT...Southeast winds less than 10 knots increasing
to 5 to 15 knots late. Waves calm to 2 feet.
.MONDAY...Southeast winds 5 to 15 knots backing east in the
afternoon. A slight chance of rain showers by mid afternoon.
Waves calm to 2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots backing north by mid
afternoon. A chance of rain showers. Waves calm to 2 feet.
.TUESDAY NIGHT...North winds 5 to 15 knots backing northwest
after midnight. Waves calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...North winds less than 10 knots becoming east
5 to 15 knots after midnight. Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots becoming south 10 to 20 knots.
A chance of showers. Waves calm to 2 feet.

$$

LSZ266-170930-
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-
924 PM EDT Sun Jun 16 2019

.REST OF TONIGHT...North winds less than 10 knots backing west
after midnight. Waves calm to 2 feet.
.MONDAY...South winds less than 10 knots backing east in the
afternoon, then increasing to 5 to 15 knots late. Waves calm to
2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots diminishing to less than
10 knots after midnight, then increasing to 5 to 15 knots late. A
chance of rain showers. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots backing north by mid
afternoon. A slight chance of rain showers. Waves calm to 2 feet.
.TUESDAY NIGHT...North winds 5 to 15 knots backing northwest
after midnight. Waves calm to 2 feet.
.WEDNESDAY...North winds less than 10 knots backing northwest by
mid afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...North winds 5 to 15 knots veering northeast
after midnight. Waves calm to 2 feet.
.THURSDAY...Northeast winds 5 to 15 knots veering east. A chance
of rain showers. Waves calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots veering south. A chance of
showers. Waves calm to 2 feet.

$$

LSZ267-170930-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
924 PM EDT Sun Jun 16 2019

.REST OF TONIGHT...Northwest winds 5 to 15 knots backing west
after midnight. Waves calm to 2 feet.
.MONDAY...Northwest winds less than 10 knots veering north in the
afternoon, then increasing to 5 to 15 knots late. Waves calm to
2 feet.
.MONDAY NIGHT...Northeast winds 5 to 15 knots veering southeast
after midnight, then backing east late. Sprinkles after midnight.
Waves calm to 2 feet.
.TUESDAY...East winds 10 to 20 knots backing north by mid
afternoon. A slight chance of showers. Waves calm to 2 feet.
.TUESDAY NIGHT...North winds 10 to 20 knots backing northwest
after midnight. Waves calm to 2 feet.
.WEDNESDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...North winds 5 to 15 knots veering northeast
after midnight. Waves calm to 2 feet.
.THURSDAY...North winds 5 to 15 knots veering east. A chance of
showers. Waves calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots veering south. A chance of
showers. Waves calm to 2 feet.

$$
LSZ261-170930-
MAFOR 1703/
Superior West 12100 13200 13100. A chance of showers Monday
evening. Waves 2 feet or less.

Superior North Central 14300 11300 13200. A chance of showers
Monday evening. Waves 1 foot or less.

Superior South Central 11400 13300 14200. Waves 1 foot or less.

Superior East 13700 11800 11100 11800 12100. Waves 1 foot or
less.

$$

JAW

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

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

Other Information

Great Lakes Water Levels and Forecasts - Provided by USACE

GLERL - NOAA Great Lakes Forecast System

NOAA Marine Homepage