996
FZUS63 KMQT 170733
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
333 AM EDT Sat Aug 17 2024

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 29.7 inch low will slide into Lower Michigan this
morning and over the Lower Great Lakes Sunday morning. In it`s
wake, weak ridging of 30.0 inches will move back over Lake
Superior Sunday, building to near 30.2 inches Monday. The 30.2
inch ridge remains until Tuesday. Ridging over the Great Lakes
weakens to 30.1 inches through Thursday as the high pressure
tracks toward New England.

LSZ162-171545-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
333 AM EDT Sat Aug 17 2024 /233 AM CDT Sat Aug 17 2024/

.EARLY THIS MORNING...North winds 10 to 20 knots. A slight chance
of showers and thunderstorms. Waves 1 to 3 feet.
.TODAY...North winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon, then backing west late. A slight chance of
showers. A slight chance of thunderstorms by mid afternoon. Waves
subsiding to calm to 2 feet.
.TONIGHT...Northwest winds 5 to 15 knots veering north after
midnight. Waves calm to 2 feet.
.SUNDAY...North winds 5 to 15 knots veering east in the
afternoon, then veering southwest late. Waves calm to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots veering north after
midnight. Waves calm to 2 feet.
.MONDAY...Northeast winds 5 to 15 knots veering east by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Southeast winds 10 to 20 knots veering south. Waves
calm to 2 feet.

$$

LSZ263-171545-
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-
333 AM EDT Sat Aug 17 2024

.EARLY THIS MORNING...North winds 5 to 15 knots. Patchy fog. A
slight chance of showers and thunderstorms. Waves 1 to 3 feet.
.TODAY...North winds 10 to 20 knots diminishing to 5 to 15 knots
late. A slight chance of showers through early afternoon. Waves
subsiding to calm to 2 feet.
.TONIGHT...North winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...North winds 10 to 20 knots veering northeast in the
afternoon, then diminishing to 5 to 15 knots late. Waves building
to 1 to 3 feet, then subsiding to calm to 2 feet.
.SUNDAY NIGHT...Northwest winds 5 to 15 knots veering north after
midnight. Waves calm to 2 feet.
.MONDAY...Northeast winds 5 to 15 knots veering east by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots becoming southeast less
than 10 knots after midnight. Waves calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots veering south. Waves
calm to 2 feet.
.WEDNESDAY...South winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ264-171545-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
333 AM EDT Sat Aug 17 2024

.EARLY THIS MORNING...North winds 5 to 15 knots. Patchy fog. A
slight chance of showers and thunderstorms. Waves 1 to 3 feet.
.TODAY...North winds 10 to 20 knots. A slight chance of showers
through early afternoon. Waves subsiding to calm to 2 feet, then
building to 1 to 3 feet.
.TONIGHT...North winds 5 to 15 knots increasing to 10 to 20 knots
late. Waves subsiding to calm to 2 feet, then building to 2 to
4 feet.
.SUNDAY...North winds 10 to 20 knots becoming northwest 5 to
15 knots late. Waves subsiding to calm to 2 feet.
.SUNDAY NIGHT...Northwest winds 5 to 15 knots veering northeast
after midnight. Waves calm to 2 feet.
.MONDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT...North winds less than 10 knots veering east after
midnight. Waves calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots veering south. Waves
calm to 2 feet.
.WEDNESDAY...South winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ265-171545-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
333 AM EDT Sat Aug 17 2024

.EARLY THIS MORNING...North winds 10 to 20 knots. Patchy fog. A
chance of showers and a slight chance of thunderstorms. Waves
calm to 2 feet.
.TODAY...North winds 10 to 20 knots. Patchy fog through early
afternoon. A slight chance of thunderstorms through early
afternoon. A chance of showers. Waves building to 1 to 3 feet.
.TONIGHT...North winds 10 to 20 knots increasing to 15 to
25 knots late. A slight chance of showers through midnight. Waves
building to 3 to 5 feet occasionally to 7 feet.
.SUNDAY...North winds 15 to 25 knots diminishing to 10 to
20 knots late. Waves subsiding to 2 to 4 feet.
.SUNDAY NIGHT...North winds 10 to 20 knots. Waves subsiding to
calm to 2 feet.
.MONDAY...Northeast winds 10 to 20 knots backing north by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...North winds 5 to 15 knots veering east after
midnight. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ266-171545-
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-
333 AM EDT Sat Aug 17 2024

.EARLY THIS MORNING...Northeast winds 10 to 20 knots. Patchy fog.
A chance of showers and a slight chance of thunderstorms. Waves
calm to 2 feet.
.TODAY...Northeast winds 10 to 20 knots backing north in the
afternoon. Patchy fog through early afternoon. A slight chance of
thunderstorms through early afternoon. A slight chance of
showers. Waves building to 1 to 3 feet.
.TONIGHT...North winds 10 to 20 knots increasing to 15 to
25 knots after midnight. A slight chance of thunderstorms through
midnight. A chance of showers. Waves building to 3 to 5 feet
occasionally to 7 feet.
.SUNDAY...North winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. Waves subsiding to 2 to 4 feet.
.SUNDAY NIGHT...North winds 10 to 20 knots. Waves subsiding to
1 to 3 feet.
.MONDAY...North winds 10 to 20 knots. Waves subsiding to calm to
2 feet.
.MONDAY NIGHT...North winds 5 to 15 knots veering east after
midnight. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.
.WEDNESDAY...South winds 5 to 15 knots increasing to 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ267-171545-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
333 AM EDT Sat Aug 17 2024

.EARLY THIS MORNING...East winds 10 to 20 knots. Patchy fog. A
chance of showers and a slight chance of thunderstorms. Waves
calm to 2 feet.
.TODAY...Northeast winds 10 to 20 knots backing north in the
afternoon. A slight chance of showers. A slight chance of
thunderstorms by mid afternoon. Waves calm to 2 feet.
.TONIGHT...North winds 10 to 20 knots increasing to 15 to
25 knots late. A chance of showers and a slight chance of
thunderstorms. Waves building to 2 to 4 feet.
.SUNDAY...North winds 15 to 25 knots. A slight chance of showers
through early afternoon. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
.SUNDAY NIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. Waves subsiding to 1 to 3 feet.
.MONDAY...North winds 10 to 20 knots backing northwest by mid
afternoon. Waves subsiding to calm to 2 feet, then building to
1 to 3 feet.
.MONDAY NIGHT...North winds 10 to 20 knots veering northeast
after midnight. Waves subsiding to calm to 2 feet.
.TUESDAY...North winds 10 to 20 knots becoming south 5 to
15 knots. Waves calm to 2 feet.
.WEDNESDAY...Southeast winds 10 to 20 knots veering south. Waves
calm to 2 feet.

$$

LSZ261-171545-
MAFOR 1709/
Superior West 11820 13810 13710 11810. Waves 1 to 3 feet.

Superior North Central 11110 11810 14820 11810 11820. Waves 1 to
3 feet.

Superior South Central 11110 13810 14820. A chance of showers and
thunderstorms early, then a chance of showers this morning. A
chance of showers this evening. Waves 1 to 3 feet today. Waves 2
to 4 feet tonight.

Superior East 11200 11100 11800 13810 12820. A chance of showers
today and this evening. Waves 1 to 3 feet.

$$

WFO MQT

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

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