057
FZUS63 KMQT 101952
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
352 PM 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 weak 29.7 inch clipper is actively moving into
western Lake Superior this afternoon and will pass southeast over
the Upper Great Lakes tonight. A 29.8 inch ridge will build in
briefly on Saturday before another clipper at 29.6 inches
approaches from the northwest early Sunday morning. This second
clipper passes southeast over Lake Superior through Sunday. High
pressure near 29.9 inches builds in from northern Ontario behind
the passing clipper Tuesday, steadily rising to 30.1 inches by
Wednesday.

LSZ162-110400-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
352 PM EDT Fri May 10 2024 /252 PM CDT Fri May 10 2024/

.LATE THIS AFTERNOON...West winds 10 to 20 knots. A chance of
rain showers and a slight chance of thunderstorms. Waves calm to
2 feet.
.TONIGHT...West winds 10 to 20 knots veering northwest 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, then becoming south 10 to 20 knots late. Waves
calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots increasing to 10 to
20 knots after midnight. A slight chance of rain showers. Waves
building to 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 20 knots veering west by mid
afternoon. A slight chance of rain showers. Waves subsiding to
calm to 2 feet, then building to 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves subsiding to calm to 2 feet.
.MONDAY...North winds 10 to 20 knots veering south by mid
afternoon. Waves building to 1 to 3 feet.
.MONDAY NIGHT...Northeast winds 10 to 20 knots. Waves subsiding
to calm to 2 feet.
.TUESDAY...East winds 10 to 20 knots backing northeast. Waves
calm to 2 feet.
.WEDNESDAY...East winds 10 to 20 knots backing northeast. A
chance of rain showers. Waves building to 1 to 3 feet.

$$

LSZ263-110400-
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-
352 PM EDT Fri May 10 2024

.LATE THIS AFTERNOON...West winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots veering northwest after
midnight. A slight chance of rain showers through midnight. Waves
calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots backing southwest late.
Waves building to 1 to 3 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots increasing to 10 to
20 knots late. A chance of rain showers. Waves subsiding to calm
to 2 feet, then building to 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. A slight chance of rain showers. A
slight chance of thunderstorms by mid afternoon. Waves 1 to
3 feet.
.SUNDAY NIGHT...Northwest winds 5 to 15 knots becoming north
10 to 20 knots after midnight. Waves subsiding to calm to 2 feet,
then building to 1 to 3 feet.
.MONDAY...North winds 10 to 20 knots becoming south 5 to 15 knots
by mid afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...Northeast winds 5 to 15 knots backing north after
midnight. Waves calm to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots veering east. Waves calm
to 2 feet.
.WEDNESDAY...East winds 5 to 15 knots. A chance of rain showers.
Waves building to 1 to 3 feet, then subsiding to calm to 2 feet.

$$

LSZ264-110400-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
352 PM EDT Fri May 10 2024

.LATE THIS AFTERNOON...South winds 5 to 15 knots. A chance of
rain showers. Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots veering northwest after
midnight. A chance of rain showers through midnight. 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, then increasing to 10 to 20 knots late. 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 rain showers. Waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots becoming north 10 to
20 knots after midnight. Waves subsiding to calm to 2 feet, then
building to 1 to 3 feet.
.MONDAY...North winds 10 to 20 knots becoming west 5 to 15 knots
by mid afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots veering north after
midnight. Waves calm to 2 feet.
.TUESDAY...North winds 5 to 15 knots backing west. Waves calm to
2 feet.
.WEDNESDAY...East winds 5 to 15 knots veering southeast. A chance
of rain showers. Waves building to 1 to 3 feet.

$$

LSZ265-110400-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
352 PM EDT Fri May 10 2024

.LATE THIS AFTERNOON...Southeast winds 5 to 15 knots. A slight
chance of rain showers. Waves calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots backing northwest after
midnight. A 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, then increasing to 10 to 20 knots late. A slight chance
of rain showers after midnight. Waves calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots becoming west 5 to 15 knots
by mid afternoon. A chance of showers. A slight chance of
thunderstorms by mid afternoon. Waves building to 2 to 4 feet,
then subsiding to calm to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots becoming northwest 10 to
20 knots after midnight. Waves calm to 2 feet.
.MONDAY...North winds 10 to 20 knots. Waves calm to 2 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves calm to 2 feet.
.TUESDAY...North winds 10 to 20 knots becoming northwest 5 to
15 knots. Waves calm to 2 feet.
.WEDNESDAY...East winds 10 to 20 knots veering southeast. A
chance of rain showers. Waves calm to 2 feet.

$$

LSZ266-110400-
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-
352 PM EDT Fri May 10 2024

.LATE THIS AFTERNOON...East winds 5 to 15 knots. A slight chance
of rain showers. Waves calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots backing north after midnight.
A chance of rain showers. Waves calm to 2 feet.
.SATURDAY...Northwest winds 10 to 20 knots 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 southwest
after midnight, then becoming south 10 to 20 knots late. A slight
chance of rain showers after midnight. Waves building to 1 to
3 feet.
.SUNDAY...South winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. A chance of rain showers. A slight
chance of thunderstorms by mid afternoon. Waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 1 to 3 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots becoming northwest 10 to
20 knots after midnight. Waves subsiding to calm to 2 feet, then
building to 1 to 3 feet.
.MONDAY...Northwest winds 10 to 20 knots. Waves 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves 1 to 3 feet.
.TUESDAY...North winds 10 to 20 knots backing northwest. Waves
subsiding to calm to 2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots becoming southeast
10 to 20 knots. Waves calm to 2 feet.

$$

LSZ267-110400-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
352 PM EDT Fri May 10 2024

.LATE THIS AFTERNOON...North winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...East winds 5 to 15 knots backing north after midnight.
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 calm to 2 feet.
.SATURDAY NIGHT...Northwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight, then backing south late. 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.
Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.SUNDAY NIGHT...Southwest winds 10 to 20 knots veering northwest
after midnight. Waves subsiding to calm to 2 feet.
.MONDAY...Northwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. Waves building to 2 to 4 feet.
.MONDAY NIGHT...Northwest winds 15 to 25 knots becoming north
10 to 20 knots after midnight. Waves subsiding to 1 to 3 feet.
.TUESDAY...Northwest winds 10 to 20 knots veering north. Waves
subsiding to calm to 2 feet, then building to 1 to 3 feet.
.WEDNESDAY...North winds 10 to 20 knots veering southeast. Waves
calm to 2 feet.

$$

LSZ261-110400-
MAFOR 1021/
Superior West 13610 13710 11600 11510. A chance of rain showers
this evening. Waves 1 to 2 feet.

Superior North Central 12400 11700 11800 13710 11610. A chance of
rain showers this evening. Waves 1 foot or less.

Superior South Central 12200 11800 12700 13710. A chance of rain
showers tonight. Waves 2 feet or less.

Superior East 11100 12200 12800 11810 12710. A chance of rain
showers overnight and Saturday morning. Waves 2 feet or less.

$$

BW

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

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