Great Lakes Forecast
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FZUS63 KMQT 280807
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
407 AM EDT Fri Jul 28 2017

For waters beyond 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.

.SYNOPSIS...A 30.0 inch ridge of high pressure will remain
centered over the Upper Great Lakes into Monday. A low pressure
trough of 29.9 inches will move across Lake Superior late Monday
into Tuesday.

LSZ162-281615-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
407 AM EDT Fri Jul 28 2017 /307 AM CDT Fri Jul 28 2017/

.EARLY THIS MORNING...East winds less than 10 knots. Waves calm
to 2 feet.
.TODAY...East winds less than 10 knots veering southeast in the
afternoon, then becoming east 5 to 15 knots late. Waves calm to
2 feet.
.TONIGHT...East winds 5 to 15 knots backing northeast after
midnight. Waves calm to 2 feet.
.SATURDAY...South winds less than 10 knots becoming southwest
5 to 15 knots in the afternoon, then backing south late. Waves
calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.SUNDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.MONDAY...Southwest winds 5 to 15 knots increasing to 10 to
20 knots. Waves building to 1 to 3 feet.
.TUESDAY...West winds 10 to 20 knots veering northeast. Waves
subsiding to calm to 2 feet.

$$

LSZ263-281615-
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-
407 AM EDT Fri Jul 28 2017

.EARLY THIS MORNING...Southeast winds less than 10 knots. Waves
calm to 2 feet.
.TODAY...Southeast winds less than 10 knots veering southwest in
the afternoon, then backing east late. Waves calm to 2 feet.
.TONIGHT...East winds less than 10 knots veering south after
midnight. Waves calm to 2 feet.
.SATURDAY...Southwest winds less than 10 knots increasing to 5 to
15 knots in the afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.SUNDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.MONDAY...Southwest winds 5 to 15 knots. Waves building to 1 to
3 feet.
.TUESDAY...West winds 5 to 15 knots veering northeast. Waves
subsiding to calm to 2 feet.

$$

LSZ264-281615-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
407 AM EDT Fri Jul 28 2017

.EARLY THIS MORNING...East winds less than 10 knots. Waves calm
to 2 feet.
.TODAY...Southeast winds less than 10 knots veering south in the
afternoon. Waves calm to 2 feet.
.TONIGHT...South winds less than 10 knots veering southwest late.
Waves calm to 2 feet.
.SATURDAY...Southwest winds less than 10 knots increasing to 5 to
15 knots in the afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.SUNDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots. Waves building to 1 to
3 feet.
.TUESDAY...West winds 5 to 15 knots veering north. Waves building
to 2 to 4 feet, then subsiding to calm to 2 feet.

$$

LSZ265-281615-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
407 AM EDT Fri Jul 28 2017

.EARLY THIS MORNING...North winds less than 10 knots. Waves calm
to 2 feet.
.TODAY...North winds less than 10 knots becoming east 5 to
15 knots in the afternoon. Waves calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots veering southwest late.
Waves calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots backing southeast late.
Waves calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. Waves calm to 2 feet.
.SUNDAY...West winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.MONDAY...West winds 5 to 15 knots becoming southwest 10 to
20 knots. Waves calm to 2 feet.
.TUESDAY...West winds 10 to 20 knots veering north. A chance of
showers. Waves building to 1 to 3 feet.

$$

LSZ266-281615-
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-
407 AM EDT Fri Jul 28 2017

.EARLY THIS MORNING...Northeast winds 5 to 15 knots. Waves calm
to 2 feet.
.TODAY...East winds 5 to 15 knots becoming northeast less than
10 knots late. Waves calm to 2 feet.
.TONIGHT...North winds 5 to 15 knots veering south after
midnight, then veering southwest late. Waves calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots backing south in the
afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. Waves calm to 2 feet.
.SUNDAY...West winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.MONDAY...West winds 5 to 15 knots backing south. Waves building
to 1 to 3 feet.
.TUESDAY...West winds 10 to 20 knots becoming north 5 to
15 knots. A chance of showers. Waves subsiding to calm to 2 feet,
then building to 1 to 3 feet.

$$

LSZ267-281615-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
407 AM EDT Fri Jul 28 2017

.EARLY THIS MORNING...East winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...East winds 5 to 15 knots backing north late. Waves calm
to 2 feet.
.TONIGHT...North winds 5 to 15 knots backing northwest after
midnight. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots veering north late. Waves
calm to 2 feet.
.SATURDAY NIGHT...South winds less than 10 knots becoming
southwest 5 to 15 knots after midnight. Waves calm to 2 feet.
.SUNDAY...Southwest winds 5 to 15 knots veering west by mid
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.MONDAY...West winds 5 to 15 knots backing south. Waves calm to
2 feet.
.TUESDAY...West winds 10 to 20 knots veering north. A chance of
showers. Waves calm to 2 feet.

$$

LSZ261-281615-
MAFOR 2809/
Superior West 12200 12300 13200 11300. Waves 1 foot or less.

Superior North Central 11200 13300 14400. Waves 1 foot or less.

Superior South Central 12800 11100 12200 11300 12400. Waves 1
foot or less.

Superior East 13200 11100 11700 12800 11700. Waves 2 feet or
less.

$$

KEC

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

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


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