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National Weather Service Marine Forecast FZUS63 KMQT

FZUS63 KMQT 190256
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
956 PM EST Sun Nov 18 2018

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 30.1 inch low pressure trough is settled across
Lake Superior tonight. A 30.4 inch ridge will begin to build
south across the Upper Great Lakes Monday evening into Tuesday
before a quick-moving low pressure system of about 29.9 inches
develops over the Upper Great Lakes on Wednesday. Look for a 30.7
inch high building over the Upper Great Lakes Thursday morning,
stretching a 30.6 inch ridge across Lake Superior. On Friday, a
29.5 inch will develop near Lake Winnipeg and will move through
the Upper Great Lakes through the weekend.


LSZ162-191100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
956 PM EST Sun Nov 18 2018 /856 PM CST Sun Nov 18 2018/

REST OF TONIGHT
North winds 5 to 15 knots becoming northeast
10 to 20 knots by midnight. Snow showers. Waves calm to 2 feet
building to 3 to 6 feet occasionally to 8 feet.

MONDAY
Northeast winds 20 to 30 knots becoming north 15 to
25 knots by mid afternoon. Scattered snow showers. Waves building
to 5 to 8 feet occasionally to 10 feet, then subsiding to 3 to
6 feet occasionally to 8 feet.

MONDAY NIGHT
North winds 5 to 15 knots backing northwest late.
A slight chance of snow showers in the evening. Waves subsiding
to calm to 2 feet.

TUESDAY
West winds 10 to 20 knots becoming southwest 15 to
25 knots in the afternoon. A slight chance of snow showers in the
morning, then snow showers likely in the afternoon. Waves
building to 3 to 5 feet occasionally to 7 feet.

TUESDAY NIGHT
North winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. A chance of snow showers. Waves
subsiding to 1 to 3 feet.

WEDNESDAY
Northeast winds 10 to 20 knots becoming east 5 to
15 knots in the afternoon. Waves subsiding to calm to 2 feet.

WEDNESDAY NIGHT
Southeast winds 10 to 20 knots veering south
after midnight. Waves building to 2 to 4 feet.

THURSDAY
South winds 10 to 20 knots increasing to 15 to
25 knots. Waves building to 3 to 5 feet occasionally to 7 feet.

FRIDAY
Southwest winds 15 to 25 knots diminishing to 5 to
15 knots. A chance of rain showers. Waves subsiding to 1 to
3 feet, then building to 2 to 4 feet.



LSZ263-191100-
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-
956 PM EST Sun Nov 18 2018

REST OF TONIGHT
North winds 5 to 15 knots becoming northeast
10 to 20 knots by midnight. A chance of snow showers late in the
evening, then snow showers after midnight. Waves 1 to 3 feet
subsiding to calm to 2 feet, then building to 3 to 5 feet
occasionally to 7 feet.

MONDAY
Northeast winds 20 to 30 knots becoming north 15 to
25 knots by mid afternoon. Freezing spray in the morning.
Scattered snow showers. Waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.

MONDAY NIGHT
North winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then backing northwest late. A slight
chance of snow showers. Waves subsiding to calm to 2 feet.

TUESDAY
West winds 10 to 20 knots becoming southwest 15 to
25 knots in the afternoon. A chance of snow showers in the
morning, then snow showers likely in the afternoon. Waves
building to 3 to 5 feet occasionally to 7 feet.

TUESDAY NIGHT
North winds 15 to 25 knots. A chance of snow
showers. Freezing spray after midnight. Waves 3 to 5 feet
occasionally to 7 feet.

WEDNESDAY
Northeast winds 10 to 20 knots becoming east 5 to
15 knots in the afternoon. Freezing spray in the morning. Waves
subsiding to calm to 2 feet.

WEDNESDAY NIGHT
Southeast winds 10 to 20 knots veering south
after midnight. Waves building to 1 to 3 feet.

THURSDAY
South winds 15 to 25 knots. Waves building to 3 to
6 feet occasionally to 8 feet.

FRIDAY
South winds 15 to 25 knots becoming southwest 10 to
20 knots. A chance of rain showers. Waves subsiding to 1 to
3 feet.



LSZ264-191100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
956 PM EST Sun Nov 18 2018

REST OF TONIGHT
North winds 10 to 20 knots veering northeast
by midnight, then increasing to 15 to 25 knots late. A chance of
snow showers late in the evening, then snow showers likely after
midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet, then
building to 2 to 4 feet.

MONDAY
Northeast winds 20 to 30 knots becoming north 15 to
25 knots by mid afternoon. Freezing spray. Scattered snow
showers. Waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet.

MONDAY NIGHT
North winds 15 to 25 knots diminishing to 10 to
20 knots by midnight, then backing northwest late. Freezing spray
in the evening. A slight chance of snow showers. Waves subsiding
to calm to 2 feet.

TUESDAY
West winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. A chance of snow showers in the morning, then
snow showers in the afternoon. Waves building to 3 to 5 feet
occasionally to 7 feet.

TUESDAY NIGHT
North winds 20 to 30 knots. Snow showers likely
in the evening, then a chance of snow showers after midnight.
Freezing spray after midnight. Waves building to 3 to 6 feet
occasionally to 8 feet.

WEDNESDAY
North winds 15 to 25 knots becoming northeast 10 to
20 knots in the afternoon. Freezing spray in the morning. A
chance of snow showers. Waves subsiding to 1 to 3 feet.

WEDNESDAY NIGHT
East winds 10 to 20 knots becoming south 15 to
25 knots after midnight. Waves subsiding to calm to 2 feet, then
building to 1 to 3 feet.

THURSDAY
South winds 20 to 30 knots. Waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.

FRIDAY
South winds 15 to 25 knots. A chance of rain showers.
Waves subsiding to 2 to 4 feet.



LSZ265-191100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
956 PM EST Sun Nov 18 2018

REST OF TONIGHT
North winds 10 to 20 knots becoming northeast
5 to 15 knots by midnight, then increasing to 10 to 20 knots
late. Snow showers. Waves calm to 2 feet building to 2 to 4 feet.

MONDAY
Northeast winds 15 to 25 knots increasing to 20 to
30 knots by late morning, then becoming north 15 to 25 knots by
mid afternoon. Numerous snow showers in the morning, then
scattered snow showers in the afternoon. Waves building to 3 to
6 feet occasionally to 8 feet.

MONDAY NIGHT
North winds 15 to 25 knots diminishing to 10 to
20 knots by midnight, then backing northwest late. A chance of
snow showers. Waves subsiding to 1 to 3 feet.

TUESDAY
West winds 10 to 20 knots becoming southwest 15 to
25 knots in the afternoon. A chance of snow showers. Waves
subsiding to calm to 2 feet, then building to 1 to 3 feet.

TUESDAY NIGHT
West winds 20 to 30 knots veering north after
midnight. Snow showers likely in the evening, then a chance of
snow showers after midnight. Waves building to 4 to 7 feet
occasionally to 9 feet.

WEDNESDAY
North winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. Freezing spray in the morning. A
chance of snow showers. Waves subsiding to 2 to 4 feet.

WEDNESDAY NIGHT
East winds 10 to 20 knots veering south after
midnight. A chance of snow showers. Waves subsiding to calm to
2 feet, then building to 1 to 3 feet.

THURSDAY
South winds 20 to 30 knots diminishing to 15 to
25 knots. Waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet.

FRIDAY
South winds 15 to 25 knots. A chance of rain showers.
Waves subsiding to calm to 2 feet.



LSZ266-191100-
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-
956 PM EST Sun Nov 18 2018

REST OF TONIGHT
North winds 10 to 20 knots becoming northeast
5 to 15 knots by midnight, then increasing to 10 to 20 knots
late. A chance of snow showers late in the evening, then snow
showers after midnight. Waves 3 to 5 feet occasionally to 7 feet
subsiding to 1 to 3 feet, then building to 2 to 4 feet.

MONDAY
Northeast winds 15 to 25 knots backing north by mid
afternoon. Scattered snow showers. Waves building to 3 to 6 feet
occasionally to 8 feet.

MONDAY NIGHT
North winds 15 to 25 knots diminishing to 5 to
15 knots. A chance of snow showers. Waves subsiding to 1 to
3 feet.

TUESDAY
West winds 5 to 15 knots becoming southwest 15 to
25 knots in the afternoon. A chance of snow showers in the
morning, then snow showers likely in the afternoon. Waves
subsiding to calm to 2 feet, then building to 2 to 4 feet.

TUESDAY NIGHT
West winds 20 to 30 knots becoming north gales
to 35 knots after midnight. Snow showers. Freezing spray after
midnight. Waves building to 5 to 8 feet occasionally to 10 feet.

WEDNESDAY
North winds 20 to 30 knots diminishing to 10 to
20 knots in the afternoon. Freezing spray in the morning. A
chance of snow showers. Waves subsiding to 2 to 4 feet.

WEDNESDAY NIGHT
Northeast winds 10 to 20 knots veering south
after midnight. Waves subsiding to calm to 2 feet, then building
to 1 to 3 feet.

THURSDAY
South winds 20 to 30 knots. Waves building to 5 to
9 feet occasionally to 11 feet.

FRIDAY
South winds 20 to 30 knots diminishing to 15 to
25 knots. A chance of rain showers. Waves subsiding to 2 to
4 feet.



LSZ267-191100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
956 PM EST Sun Nov 18 2018

REST OF TONIGHT
Northwest winds 10 to 20 knots veering
northeast by midnight, then increasing to 15 to 25 knots late.
Snow showers. Waves 3 to 6 feet occasionally to 8 feet subsiding
to 2 to 4 feet.

MONDAY
East winds 15 to 25 knots becoming northeast 10 to
20 knots by late morning, then backing north by mid afternoon.
Scattered snow showers. Waves subsiding to 1 to 3 feet.

MONDAY NIGHT
North winds 15 to 25 knots diminishing to 10 to
20 knots late. A chance of snow showers. Waves subsiding to calm
to 2 feet.

TUESDAY
South winds 5 to 15 knots becoming southwest 15 to
25 knots in the afternoon. A chance of snow showers in the
morning, then snow showers likely in the afternoon. Waves
building to 2 to 4 feet.

TUESDAY NIGHT
West winds 20 to 30 knots becoming north gales
to 35 knots after midnight. Snow showers. Freezing spray after
midnight. Waves building to 4 to 7 feet occasionally to 9 feet.

WEDNESDAY
North winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. Freezing spray in the morning. A
chance of snow showers. Waves subsiding to 1 to 3 feet.

WEDNESDAY NIGHT
East winds 15 to 25 knots becoming southeast
10 to 20 knots after midnight. Waves subsiding to calm to 2 feet.

THURSDAY
South winds 20 to 30 knots. Waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.

FRIDAY
South winds 20 to 30 knots diminishing to 15 to
25 knots. A chance of rain showers. Waves subsiding to 2 to
4 feet.


LSZ261-191100-
MAFOR 1904/
Superior West 11127 11137 11147 11140 19147 11140 11130 11820
11810. Waves 1 to 3 feet building to 3 to 5 feet overnight. Waves
5 to 8 feet subsiding to 3 to 6 feet Monday. Waves 3 to 5 feet
subsiding to 2 to 4 feet Monday evening.

Superior North Central 11110 11127 11137 12130 19137 11120 11820
19827 11820. Waves 2 to 4 feet overnight. Waves 3 to 6 feet
Monday and Monday evening.

Superior South Central 11817 11117 12137 12130 19137 11830 11820.
Waves 1 to 3 feet overnight. Waves 3 to 6 feet Monday and Monday
evening.

Superior East 11117 12127 11130 19137 11120 19127 11120 12820.
Waves 3 to 5 feet overnight. Waves 2 to 4 feet Monday and Monday
evening.



JAW

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

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