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FZUS63 KMQT 091351
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
951 AM EDT Thu May 9 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 30.0 inch ridge will remain over Lake Superior
today, while a weak 29.7 inch clipper approaches from the
northwest on Friday. A 29.8 inch ridge will build in briefly on
Saturday, while another clipper at 29.6 inches approaches from the
northwest on Sunday. A high pressure ridge of 29.8 inches follows
for early next week.

LSZ162-092200-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
951 AM EDT Thu May 9 2024 /851 AM CDT Thu May 9 2024/

.REST OF TODAY...Northeast winds 15 to 25 knots diminishing to
5 to 15 knots. Waves 3 to 5 feet occasionally to 7 feet subsiding
to 1 to 3 feet.
.TONIGHT...Northwest winds 5 to 15 knots backing southwest late.
Waves subsiding to calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots veering west late. A
chance of rain showers. A slight chance of thunderstorms by mid
afternoon. Waves calm to 2 feet.
.FRIDAY NIGHT...West winds 5 to 15 knots becoming northwest 10 to
20 knots after midnight. A slight chance of showers and
thunderstorms through midnight. Waves calm to 2 feet.
.SATURDAY...West winds 10 to 20 knots backing south by mid
afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots. A chance of showers.
Waves calm to 2 feet.
.SUNDAY...Southwest winds 10 to 20 knots veering north. A chance
of rain showers. Waves calm to 2 feet.
.MONDAY...North winds 10 to 20 knots veering northeast. Waves
calm to 2 feet.

$$

LSZ263-092200-
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-
951 AM EDT Thu May 9 2024

.REST OF TODAY...Northeast winds 10 to 20 knots diminishing to
5 to 15 knots late. Waves 3 to 5 feet occasionally to 7 feet
subsiding to 1 to 3 feet.
.TONIGHT...Northwest winds less than 10 knots backing west after
midnight, then increasing to 5 to 15 knots late. Waves subsiding
to calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots veering west late. A
chance of rain showers. Waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.FRIDAY NIGHT...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 by
mid afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.
.SUNDAY...Southwest winds 10 to 20 knots becoming northwest 5 to
15 knots. A chance of rain showers. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
.MONDAY...North winds 5 to 15 knots veering east. Waves calm to
2 feet.

$$

LSZ264-092200-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
951 AM EDT Thu May 9 2024

.REST OF TODAY...Northeast winds 5 to 15 knots backing northwest
late. Waves 2 to 4 feet subsiding to calm to 2 feet.
.TONIGHT...Northwest winds 5 to 15 knots backing west late. Waves
calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. A slight chance of rain
showers by mid afternoon. Waves calm to 2 feet.
.FRIDAY NIGHT...Southwest winds 5 to 15 knots veering northwest
after midnight. A slight chance of rain showers. Waves calm to
2 feet.
.SATURDAY...Northwest winds 5 to 15 knots backing west by mid
afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots backing south
after midnight. Waves calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots becoming northwest 5 to
15 knots. A chance of rain showers. Waves calm to 2 feet.
.MONDAY...North winds 5 to 15 knots veering east. Waves calm to
2 feet.

$$

LSZ265-092200-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
951 AM EDT Thu May 9 2024

.REST OF TODAY...Northeast winds 10 to 20 knots backing north in
the afternoon, then diminishing to 5 to 15 knots late. Waves 2 to
4 feet subsiding to calm to 2 feet.
.TONIGHT...Northwest winds 5 to 15 knots backing west late. Waves
calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots backing south in the
afternoon, then backing southeast late. Waves calm to 2 feet.
.FRIDAY NIGHT...Southeast winds 5 to 15 knots veering west after
midnight. A slight chance of rain showers. Waves calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots backing south
after midnight. Waves calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots veering west. A chance of
rain showers. Waves calm to 2 feet.
.MONDAY...North winds 10 to 20 knots veering southeast. Waves
calm to 2 feet.

$$

LSZ266-092200-
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-
951 AM EDT Thu May 9 2024

.REST OF TODAY...Northeast winds 10 to 20 knots backing north in
the afternoon. Waves 2 to 4 feet subsiding to calm to 2 feet.
.TONIGHT...Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.FRIDAY...Northwest winds 5 to 15 knots backing west in the
afternoon, then backing east late. Waves calm to 2 feet.
.FRIDAY NIGHT...Southeast winds 5 to 15 knots veering northwest
after midnight. A slight chance of rain showers. Waves calm to
2 feet.
.SATURDAY...Northwest winds 5 to 15 knots. 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. Waves calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots. A chance of rain showers.
Waves building to 1 to 3 feet, then subsiding to calm to 2 feet.
.MONDAY...Northwest winds 10 to 20 knots. Waves calm to 2 feet.

$$

LSZ267-092200-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
951 AM EDT Thu May 9 2024

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

$$

LSZ261-092200-
MAFOR 0915/
Superior West 12120 11110 11800 11700 11600 11500 11510. Waves 2
to 4 feet this afternoon. Waves 1 to 3 feet tonight and Friday
morning.

Superior North Central 11110 11810 14700 12610. Waves 1 to 3
feet.

Superior South Central 11110 12810 11710 12700 11610 11600. Waves
2 to 4 feet this afternoon. Waves 1 to 2 feet tonight and Friday
morning.

Superior East 11110 11810 11710 12810 12800 11700. Waves 1 to 3
feet.

$$

Thompson

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

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