Great Lakes Forecast
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FZUS63 KMQT 291402
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1002 AM EDT Thu Jun 29 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...29.5 inch low pressure over the Keweenaw Peninsula
late this morning will track eastward across Lake Superior
through the day before lifting into Ontario by Friday morning. A
29.7 inch trough will then linger over the Upper Great Lakes into
Saturday night. The trough will lift to the northeast on Sunday
ahead of a 30.0 inch ridge building across the Upper Mississippi
Valley and western Great Lakes Monday into Tuesday.

LSZ162-292215-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1002 AM EDT Thu Jun 29 2017 /902 AM CDT Thu Jun 29 2017/

.REST OF TODAY...Northwest winds 10 to 20 knots diminishing to
5 to 15 knots in the afternoon. Patchy fog. Scattered showers.
Waves 1 to 3 feet subsiding to calm to 2 feet.
.TONIGHT...Northwest winds 5 to 15 knots. Areas of fog. A slight
chance of showers. Waves calm to 2 feet.
.FRIDAY...Northwest winds 5 to 15 knots backing southwest in the
afternoon, then backing south late. A chance of showers. A slight
chance of thunderstorms by mid afternoon. Waves calm to 2 feet.
.FRIDAY NIGHT...Northwest winds 5 to 15 knots backing west after
midnight. A chance of showers. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots. Waves calm to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...West winds 5 to 15 knots veering north. Waves calm to
2 feet.
.MONDAY...East winds 5 to 15 knots backing northeast. Waves calm
to 2 feet.

$$

LSZ263-292215-
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-
1002 AM EDT Thu Jun 29 2017

.REST OF TODAY...Northeast winds 15 to 25 knots becoming north 5
to 15 knots in the afternoon. Areas of fog. Scattered showers.
Waves 2 to 4 feet subsiding to 1 to 3 feet.
.TONIGHT...North winds 5 to 15 knots. Areas of fog. A slight
chance of showers. Waves subsiding to calm to 2 feet.
.FRIDAY...North winds 5 to 15 knots becoming west less than
10 knots in the afternoon. A chance of showers. Waves calm to
2 feet.
.FRIDAY NIGHT...Northwest winds less than 10 knots backing west
after midnight. A chance of showers. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots. A chance of showers. Waves
calm to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...West winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY...Northeast winds 5 to 15 knots veering east. Waves calm
to 2 feet.

$$

LSZ264-292215-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1002 AM EDT Thu Jun 29 2017

.REST OF TODAY...Northeast winds 10 to 20 knots becoming north 5
to 15 knots late. Areas of fog. Numerous showers, becoming
scattered in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3
feet.
.TONIGHT...North winds 5 to 15 knots. Areas of fog through
midnight. Widespread fog after midnight. A chance of showers.
Waves subsiding to calm to 2 feet.
.FRIDAY...North winds 5 to 15 knots backing northwest late. A
chance of showers. Waves calm to 2 feet.
.FRIDAY NIGHT...Northwest winds less than 10 knots. A slight
chance of showers. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots. A chance of showers. Waves
calm to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...West winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY...East winds less than 10 knots veering south. Waves calm
to 2 feet.

$$

LSZ265-292215-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1002 AM EDT Thu Jun 29 2017

.REST OF TODAY...East winds 10 to 20 knots backing northwest in
the afternoon. Areas of fog. Scattered showers. Waves 1 to 3
feet.
.TONIGHT...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. Areas of fog. A chance of showers. Waves subsiding
to calm to 2 feet.
.FRIDAY...Northwest winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.FRIDAY NIGHT...West winds 5 to 15 knots increasing to 10 to
20 knots after midnight. A slight chance of showers. Waves calm
to 2 feet.
.SATURDAY...West winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...West winds 10 to 20 knots. Waves calm to
2 feet.
.SUNDAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves calm to 2 feet.
.MONDAY...East winds 5 to 15 knots veering southeast. Waves calm
to 2 feet.

$$

LSZ266-292215-
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-
1002 AM EDT Thu Jun 29 2017

.REST OF TODAY...East winds 10 to 20 knots backing northeast in
the afternoon, then backing northwest late. Widespread fog.
Scattered showers. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.TONIGHT...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering north late. Areas of fog. A
chance of showers. Waves subsiding to calm to 2 feet.
.FRIDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots late. A chance of showers. Waves calm to 2 feet.
.FRIDAY NIGHT...Northwest winds 5 to 15 knots. A chance of
showers. Waves calm to 2 feet.
.SATURDAY...West winds 10 to 20 knots. Waves calm to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots increasing to 10 to
20 knots after midnight. Waves calm to 2 feet.
.SUNDAY...West winds 5 to 15 knots veering northwest. Waves calm
to 2 feet.
.MONDAY...North winds 5 to 15 knots veering south. Waves calm to
2 feet.

$$

LSZ267-292215-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1002 AM EDT Thu Jun 29 2017

.REST OF TODAY...Southeast winds 10 to 20 knots becoming west
5 to 15 knots late. Widespread fog. Scattered showers. Waves 1 to
3 feet subsiding to calm to 2 feet.
.TONIGHT...West winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight. Areas of fog. A chance of showers. Waves calm to
2 feet.
.FRIDAY...West winds 5 to 15 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY NIGHT...West winds 5 to 15 knots. A chance of showers.
Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. A chance of showers. Waves calm to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...West winds 5 to 15 knots veering northwest. Waves calm
to 2 feet.
.MONDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.

$$
LSZ261-292215-
MAFOR 2915/
Superior West 14710 11713 13703. Patchy fog today. Chance of
showers this afternoon. Chance of showers late Friday morning.
Waves 1 to 3 feet.

Superior North Central 11126 11123 11813 13823 12813. Chance of
showers late this afternoon through the early overnight. Chance
of showers Friday morning. Waves 1 to 4 feet.

Superior South Central 11113 11713 14723 11713 11703. Chance of
showers. Waves 1 to 3 feet.

Superior East 11226 11213 13713 11703 11803 11203. Chance of
showers late this afternoon through the early overnight. Chance
of showers Friday morning. Waves 1 to 3 feet.

$$

Kluber

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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