Great Lakes Forecast
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862
FZUS63 KMQT 190100
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
900 PM EDT Sun Jun 18 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...Low pressure of 29.3 inches just northeast of Lake
Superior this evening will lift northeast to James Bay and
northern Quebec on Monday, where it will remain nearly stationary
through Wednesday morning. A 30.0 inch ridge over the northern
high Plains this evening will drift to the Upper Great Lakes
through Wednesday. The ridge will move to the Lower Great Lakes on
Thursday as a 29.4 inch low develops near Lake Winnipeg. An
associated 29.7 inch trough will linger over the Upper Great Lakes
through Friday.

LSZ162-190900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
900 PM EDT Sun Jun 18 2017 /800 PM CDT Sun Jun 18 2017/

.REST OF TONIGHT...West winds 10 to 20 knots diminishing to 5 to
15 knots late. Isolated showers. Waves calm to 2 feet.
.MONDAY...West winds 10 to 20 knots. A slight chance of showers.
Waves calm to 2 feet.
.MONDAY NIGHT...West winds 10 to 20 knots. A slight chance of
showers. Waves calm to 2 feet.
.TUESDAY...West winds 10 to 20 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots backing southeast by
mid afternoon. A chance of rain showers. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 20 knots becoming west
5 to 15 knots after midnight. A chance of showers. Waves calm to
2 feet.
.THURSDAY...West winds 10 to 20 knots. Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots veering northwest. Waves calm
to 2 feet.

$$

LSZ263-190900-
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-
900 PM EDT Sun Jun 18 2017

.REST OF TONIGHT...West winds 5 to 15 knots. Isolated showers.
Waves calm to 2 feet.
.MONDAY...West winds 5 to 15 knots. A slight chance of showers.
Waves calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots. A slight chance of showers.
Waves calm to 2 feet.
.TUESDAY...West winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds less than 10 knots becoming south
5 to 15 knots by mid afternoon. A chance of rain showers by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 15 knots veering
southwest after midnight. A chance of showers. Waves calm to
2 feet.
.THURSDAY...West winds 5 to 15 knots. Waves calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots. Waves building to 1 to
3 feet.

$$

LSZ264-190900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
900 PM EDT Sun Jun 18 2017

.REST OF TONIGHT...Northwest winds 10 to 20 knots diminishing to
5 to 15 knots late. Isolated showers through midnight. Waves 1 to
3 feet subsiding to calm to 2 feet.
.MONDAY...West winds 5 to 15 knots. A slight chance of showers.
Waves calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots veering northwest late.
Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots backing west by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds less than 10 knots. Waves calm to
2 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. A chance of rain showers. Waves calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots veering west. Waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots veering northwest. Waves
building to 1 to 3 feet.

$$

LSZ265-190900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
900 PM EDT Sun Jun 18 2017

.REST OF TONIGHT...West winds 10 to 20 knots. Isolated showers
through midnight. Waves 1 to 3 feet subsiding to calm to 2 feet.
.MONDAY...West winds 10 to 20 knots. A slight chance of showers.
Waves calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots increasing to 10 to
20 knots after midnight. Waves calm to 2 feet.
.TUESDAY...West winds 10 to 20 knots. A slight chance of showers
through early afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...West winds 10 to 20 knots. Waves calm to 2 feet.
.WEDNESDAY...West winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. A chance of showers. Waves calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots. Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots. Waves building to 1 to
3 feet.

$$

LSZ266-190900-
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-
900 PM EDT Sun Jun 18 2017

.REST OF TONIGHT...Northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight, then becoming west 10 to 20 knots
late. Isolated showers through midnight. Waves 3 to 5 feet
occasionally to 7 feet subsiding to 1 to 3 feet.
.MONDAY...West winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon. A slight chance of showers. Waves subsiding to
calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots increasing to 10 to
20 knots after midnight. A slight chance of showers after
midnight. Waves calm to 2 feet.
.TUESDAY...Northwest winds 10 to 20 knots backing west by mid
afternoon. A slight chance of showers through early afternoon.
Waves calm to 2 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...West winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. A chance of rain showers. Waves calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots. Waves building to 1 to
3 feet.

$$

LSZ267-190900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
900 PM EDT Sun Jun 18 2017

.REST OF TONIGHT...Northwest winds 20 to 30 knots with occasional
gale force gusts to 35 knots, becoming west 20 to 30 knots after
midnight, then diminishing to 10 to 20 knots late. Scattered
showers. Waves 5 to 9 feet occasionally to 11 feet subsiding to 2
to 4 feet.
.MONDAY...West winds 10 to 20 knots. A slight chance of showers
through early afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots backing southwest after
midnight, then veering west late. A slight chance of showers
after midnight. Waves calm to 2 feet.
.TUESDAY...West winds 10 to 20 knots. A slight chance of showers
through early afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...West winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. A chance of showers. Waves calm to
2 feet.
.THURSDAY...West winds 10 to 20 knots. A chance of rain showers.
Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots. Waves building to 1 to
3 feet.

$$
LSZ261-190900-
MAFOR 1903/
Superior West 11610 11710 12600 11610 11510 12610. Waves 1 to 2
feet.

Superior North Central 12720 12710 11600 13610. Waves 1 to 3
feet.

Superior South Central 10630 12620 13610 11700 12610. Waves 1 to
4 feet overnight and Monday. Waves 1 foot or less Monday evening.

Superior East 10740 12730 11710 14610 11610. Scattered showers
late this evening. Waves 3 to 6 feet overnight subsiding to 1 to 2
feet Monday and Monday evening.

$$

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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