838
FZUS63 KMQT 101342
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
942 AM EDT Fri May 10 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 29.9 inch ridge currently over Lake Superior will
give way this morning to a weak 29.7 inch clipper approaching from
the northwest. This clipper will pass southeast over the Upper
Great Lakes tonight. A 29.8 inch ridge will build in briefly on
Saturday while another clipper at 29.6 inches approaches from the
northwest Saturday night. This second clipper passes southeast
over the lake Sunday and Sunday night with a high pressure ridge
of 29.8 inches following for early next week.

LSZ162-102145-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
942 AM EDT Fri May 10 2024 /842 AM CDT Fri May 10 2024/

.REST OF TODAY...Southwest winds 5 to 15 knots veering west late.
A chance of rain showers. A slight chance of thunderstorms by mid
afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots becoming northwest 10 to
20 knots after midnight. A chance of rain showers and a slight
chance of thunderstorms through midnight. Waves calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots backing southwest in
the afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. A chance of rain showers. Waves calm to 2 feet.
.SUNDAY...Southwest winds 10 to 20 knots veering west by mid
afternoon. A chance of showers. A slight chance of thunderstorms
by mid afternoon. Waves building to 1 to 3 feet, then subsiding
to calm to 2 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves calm to 2 feet.
.MONDAY...East winds 10 to 20 knots backing northeast. Waves calm
to 2 feet.
.TUESDAY...East winds 10 to 20 knots backing northeast. Waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.

$$

LSZ263-102145-
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-
942 AM EDT Fri May 10 2024

.REST OF TODAY...Southwest winds 5 to 15 knots veering west late.
A chance of rain showers. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots veering north late. A slight
chance of rain showers through midnight. Waves calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots backing southwest late.
Waves calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots. A chance of rain
showers. Waves building to 1 to 3 feet.
.SUNDAY...Southwest winds 5 to 15 knots veering west by mid
afternoon. A chance of showers. A slight chance of thunderstorms
by mid afternoon. Waves subsiding to calm to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots veering north after
midnight. Waves calm to 2 feet.
.MONDAY...North winds 5 to 15 knots veering northeast. Waves calm
to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots veering east. Waves calm
to 2 feet.

$$

LSZ264-102145-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
942 AM EDT Fri May 10 2024

.REST OF TODAY...Southwest winds 5 to 15 knots backing south
late. A chance of rain showers by mid afternoon. Waves calm to
2 feet.
.TONIGHT...South winds 5 to 15 knots becoming north less than
10 knots after midnight, then increasing to 5 to 15 knots late. A
chance of rain showers. Waves calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots backing west late.
Waves calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots backing south
after midnight. A chance of rain showers. Waves building to 1 to
3 feet.
.SUNDAY...South winds 10 to 20 knots becoming southwest 5 to
15 knots by mid afternoon. A chance of showers. Waves building to
2 to 4 feet, then subsiding to calm to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots veering north after
midnight. Waves calm to 2 feet.
.MONDAY...North winds 5 to 15 knots. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots veering east. Waves calm
to 2 feet.

$$

LSZ265-102145-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
942 AM EDT Fri May 10 2024

.REST OF TODAY...West winds 5 to 15 knots backing southeast in
the afternoon. A slight chance of rain showers by mid afternoon.
Waves calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots veering northwest after
midnight, then veering north late. A slight chance of rain
showers. Waves calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. A slight chance of rain showers through early afternoon.
Waves calm to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots backing south after
midnight. A chance of showers after midnight. Waves calm to
2 feet.
.SUNDAY...South winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. A chance of showers. A slight chance of
thunderstorms by mid afternoon. Waves building to 1 to 3 feet,
then subsiding to calm to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots veering northwest after
midnight. Waves calm to 2 feet.
.MONDAY...North winds 10 to 20 knots. Waves calm to 2 feet.
.TUESDAY...Northeast winds 10 to 20 knots veering southeast.
Waves calm to 2 feet.

$$

LSZ266-102145-
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-
942 AM EDT Fri May 10 2024

.REST OF TODAY...Northwest winds 5 to 15 knots veering east late.
A slight chance of rain showers by mid afternoon. Waves calm to
2 feet.
.TONIGHT...East winds 5 to 15 knots backing north late. A chance
of rain showers. Waves calm to 2 feet.
.SATURDAY...North winds 10 to 20 knots backing northwest in the
afternoon. A slight chance of rain showers through early
afternoon. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots backing south after
midnight. A slight chance of rain showers after midnight. Waves
calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots. A chance of rain showers. A
slight chance of thunderstorms by mid afternoon. Waves building
to 2 to 4 feet, then subsiding to 1 to 3 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots becoming northwest
10 to 20 knots after midnight. Waves subsiding to calm to 2 feet.
.MONDAY...Northwest winds 10 to 20 knots veering north. Waves
building to 1 to 3 feet.
.TUESDAY...North winds 10 to 20 knots. Waves subsiding to calm to
2 feet.

$$

LSZ267-102145-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
942 AM EDT Fri May 10 2024

.REST OF TODAY...West winds 5 to 15 knots veering northwest in
the afternoon. Waves calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots backing northeast late.
A slight chance of rain showers. Waves calm to 2 feet.
.SATURDAY...North winds 5 to 15 knots becoming northwest 10 to
20 knots in the afternoon. A slight chance of rain showers. Waves
calm to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots backing southwest
after midnight. A slight chance of rain showers after midnight.
Waves calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots. Rain showers likely through
early afternoon, then a chance of rain showers by mid afternoon.
Waves building to 1 to 3 feet.
.SUNDAY NIGHT...Southwest winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.MONDAY...Northwest winds 10 to 20 knots veering north. Waves
building to 1 to 3 feet.
.TUESDAY...North winds 10 to 20 knots. Waves subsiding to calm to
2 feet.

$$

LSZ261-102145-
MAFOR 1015/
Superior West 11400 11600 12610 14710. A chance of rain showers
this afternoon and evening. Waves 1 to 2 feet.

Superior North Central 11500 13400 11500 12800 11710. A chance of
rain showers this evening. Waves 1 foot or less.

Superior South Central 11700 11300 13200 12800 11710. Waves 2
feet or less.

Superior East 12700 13200 12100 11810. A chance of rain showers
overnight. Waves 2 feet or less.

$$

Thompson

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

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