Great Lakes Forecast
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FZUS63 KMQT 260759
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
359 AM EDT Mon Jun 26 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 29.9 inch trough over the Upper Great Lakes will
slowly shift southeast and weaken today. A 30.3 inch high
pressure over the Northern Plains this morning will then move
over the Ohio Valley Tuesday and off the East coast on Wednesday.
A 29.4 inch low pressure over North Dakota Wednesday morning will
reach Northern Lower Michigan Thursday morning and New England by
Friday morning, as a 29.5 inch low pressure makes its way from the
Central Plains to Iowa.

LSZ162-261600-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
359 AM EDT Mon Jun 26 2017 /259 AM CDT Mon Jun 26 2017/

.EARLY THIS MORNING...West winds 5 to 15 knots. Rain showers
likely. Waves calm to 2 feet.
.TODAY...West winds 5 to 15 knots backing southwest in the
afternoon. A slight chance of rain showers. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots increasing to 10 to 20 knots
late. Waves calm to 2 feet.
.TUESDAY...Southwest winds 10 to 20 knots. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
.TUESDAY NIGHT...South winds 5 to 15 knots. A slight chance of
showers after midnight. Waves calm to 2 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. Rain. Waves building to 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 10 to 20 knots. A chance of
rain. Waves 1 to 3 feet.
.THURSDAY...Northeast winds 10 to 20 knots. A chance of rain
showers. Waves subsiding to calm to 2 feet.
.FRIDAY...Northeast winds 10 to 20 knots. A chance of rain
showers. Waves calm to 2 feet.

$$

LSZ263-261600-
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-
359 AM EDT Mon Jun 26 2017

.EARLY THIS MORNING...Northwest winds 5 to 15 knots. Rain
showers. Waves calm to 2 feet.
.TODAY...West winds 5 to 15 knots backing southwest late. A
chance of rain showers. Waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...Southwest winds 5 to 15 knots increasing to 10 to
20 knots late. Waves building to 1 to 3 feet.
.TUESDAY NIGHT...Southwest winds 10 to 20 knots becoming south
5 to 15 knots after midnight. A slight chance of showers after
midnight. Waves subsiding to calm to 2 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. A chance of rain through early
afternoon, then rain likely by mid afternoon. Waves building to
1 to 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 20 knots backing northeast
after midnight. Rain likely. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
.THURSDAY...Northeast winds 10 to 20 knots becoming north 5 to
15 knots. A chance of rain showers. Waves subsiding to calm to
2 feet.
.FRIDAY...Northeast winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.

$$

LSZ264-261600-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
359 AM EDT Mon Jun 26 2017

.EARLY THIS MORNING...North winds 5 to 15 knots. Rain showers
likely. Waves calm to 2 feet.
.TODAY...Northwest winds 5 to 15 knots backing west in the
afternoon. A chance of rain showers. Waves building to 1 to
3 feet.
.TONIGHT...West winds 5 to 15 knots. Waves subsiding to calm to
2 feet.
.TUESDAY...West winds 5 to 15 knots becoming southwest 10 to
20 knots in the afternoon. Waves building to 1 to 3 feet.
.TUESDAY NIGHT...Southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. A chance of rain. Waves building to
1 to 3 feet.
.WEDNESDAY NIGHT...East winds 10 to 20 knots. Rain likely. Waves
building to 3 to 5 feet occasionally to 7 feet.
.THURSDAY...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of rain showers. Waves subsiding to calm to
2 feet.
.FRIDAY...Northeast winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.

$$

LSZ265-261600-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
359 AM EDT Mon Jun 26 2017

.EARLY THIS MORNING...North winds 10 to 20 knots. Rain showers.
Waves calm to 2 feet building to 1 to 3 feet.
.TODAY...North winds 10 to 20 knots backing west late. Rain
showers through early afternoon. Waves subsiding to calm to
2 feet.
.TONIGHT...West winds 10 to 20 knots. Waves calm to 2 feet.
.TUESDAY...West winds 10 to 20 knots diminishing to 5 to 15 knots
late. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...South winds 10 to 20 knots backing southeast by mid
afternoon. A chance of rain through early afternoon, then rain
likely by mid afternoon. Waves building to 1 to 3 feet.
.WEDNESDAY NIGHT...Southeast winds 15 to 25 knots becoming east
10 to 20 knots after midnight. Rain. Waves building to 2 to
4 feet.
.THURSDAY...Northeast winds 10 to 20 knots backing north. A
chance of showers. Waves subsiding to calm to 2 feet.
.FRIDAY...Northeast winds 10 to 20 knots backing north. A chance
of showers. Waves calm to 2 feet.

$$

LSZ266-261600-
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-
359 AM EDT Mon Jun 26 2017

.EARLY THIS MORNING...North winds 5 to 15 knots. Rain showers
likely. Waves calm to 2 feet.
.TODAY...North winds 10 to 20 knots backing northwest in the
afternoon. Patchy fog through early afternoon. A chance of rain
showers through early afternoon. Waves building to 2 to 4 feet,
then subsiding to 1 to 3 feet.
.TONIGHT...Northwest winds 5 to 15 knots backing west after
midnight, then increasing to 10 to 20 knots late. Waves subsiding
to calm to 2 feet.
.TUESDAY...West winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon, then backing southwest late. Waves building to
1 to 3 feet.
.TUESDAY NIGHT...South winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. Waves subsiding to calm to 2 feet.
.WEDNESDAY...South winds 10 to 20 knots backing southeast by mid
afternoon. A chance of rain. Waves building to 1 to 3 feet.
.WEDNESDAY NIGHT...Southeast winds 15 to 25 knots becoming east
10 to 20 knots after midnight. Rain. Waves building to 3 to
5 feet occasionally to 7 feet.
.THURSDAY...East winds 10 to 20 knots backing north. A chance of
rain showers. Waves subsiding to calm to 2 feet.
.FRIDAY...Northeast winds 10 to 20 knots. A chance of rain
showers. Waves calm to 2 feet.

$$

LSZ267-261600-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
359 AM EDT Mon Jun 26 2017

.EARLY THIS MORNING...Northeast winds 5 to 15 knots. Patchy fog.
A chance of rain showers. Waves calm to 2 feet.
.TODAY...Northeast winds 5 to 15 knots becoming north 10 to
20 knots in the afternoon, then backing northwest late. Patchy
fog through early afternoon. Rain showers likely through early
afternoon, then a slight chance of rain showers by mid afternoon.
Waves building to 1 to 3 feet.
.TONIGHT...Northwest winds 10 to 20 knots backing west after
midnight. Waves building to 2 to 4 feet, then subsiding to calm
to 2 feet.
.TUESDAY...West winds 10 to 20 knots becoming southwest 5 to
15 knots late. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...South winds 10 to 20 knots backing southeast by mid
afternoon. A chance of rain by mid afternoon. Waves calm to
2 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 20 knots becoming east
15 to 25 knots after midnight. Rain likely. Waves building to
2 to 4 feet, then subsiding to 1 to 3 feet.
.THURSDAY...East winds 15 to 25 knots becoming north 10 to
20 knots. A chance of rain showers. Waves subsiding to calm to
2 feet.
.FRIDAY...Northeast winds 10 to 20 knots. A chance of rain
showers. Waves calm to 2 feet.

$$

LSZ261-261600-
MAFOR 2609/
Superior West 11716 11610 13510 12610 11600. Chance of showers
late this morning. Waves 1 to 2 feet.

Superior North Central 11816 11710 12610 11620 13610. Chance of
showers late this morning. Waves 1 to 3 feet.

Superior South Central 11816 11826 11720 11710 14610. Chance of
showers early this afternoon. Waves 1 to 3 feet.

Superior East 12116 11810 11710 12720 11710 11600. Patchy fog
this morning. Chance of showers early this afternoon. Waves 1 to
3 feet.

$$

Voss

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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