340
FZUS63 KMQT 290736
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
336 AM EDT Wed May 29 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 30.3 ridge will build over the Upper Great Lakes
this morning and remain through Thursday. This high slowly moves
towards the rest of the lower Great Lakes region beginning late
Thursday, reaching the Mid Atlantic states by Friday night at 30.2
inches. Ridging over Lake Superior weakens to 29.9 inches by
Saturday night and remains in place through Sunday. On Sunday
night, a 29.6 low pressure will lift northeast from the Northern
Plains into Ontario.

LSZ162-291545-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
336 AM EDT Wed May 29 2024 /236 AM CDT Wed May 29 2024/

.EARLY THIS MORNING...North winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...Northeast winds 5 to 15 knots veering east in the
afternoon. Waves calm to 2 feet.
.TONIGHT...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...East winds 10 to 20 knots veering south after
midnight. A chance of showers after midnight. Waves calm to
2 feet.
.FRIDAY...Southwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. A chance of showers. Waves building to
1 to 3 feet.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots. A chance of
showers. Waves subsiding to calm to 2 feet.
.SATURDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of showers. Waves calm to 2 feet.
.SUNDAY...East winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.

$$

LSZ263-291545-
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-
336 AM EDT Wed May 29 2024

.EARLY THIS MORNING...Northeast winds 10 to 20 knots. Waves calm
to 2 feet.
.TODAY...Northeast winds 5 to 15 knots veering east late. Waves
calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots diminishing to less than
10 knots after midnight, then veering southeast late. Waves calm
to 2 feet.
.THURSDAY...Southeast winds less than 10 knots becoming east 5 to
15 knots in the afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots increasing to 10 to
20 knots after midnight. Waves building to 1 to 3 feet.
.FRIDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.FRIDAY NIGHT...Southwest winds 5 to 15 knots. A chance of
showers. Waves subsiding to calm to 2 feet.
.SATURDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of showers. Waves building to 1 to 3 feet,
then subsiding to calm to 2 feet.
.SUNDAY...East winds 5 to 15 knots veering south. A chance of
showers. Waves calm to 2 feet.

$$

LSZ264-291545-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
336 AM EDT Wed May 29 2024

.EARLY THIS MORNING...Northeast winds 5 to 15 knots. Waves calm
to 2 feet.
.TODAY...Northeast winds 5 to 15 knots backing north in the
afternoon, then backing southwest late. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots diminishing to less than
10 knots after midnight, then backing southwest late. Waves calm
to 2 feet.
.THURSDAY...South winds 5 to 15 knots backing southeast in the
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. Waves building to 1 to 3 feet.
.FRIDAY...South winds 5 to 15 knots veering southwest by mid
afternoon. Waves 1 to 3 feet.
.FRIDAY NIGHT...South winds 5 to 15 knots. A chance of showers.
Waves subsiding to calm to 2 feet.
.SATURDAY...South winds 5 to 15 knots veering southwest. A chance
of showers. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots. A chance of showers.
Waves calm to 2 feet.

$$

LSZ265-291545-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
336 AM EDT Wed May 29 2024

.EARLY THIS MORNING...North winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...North winds 5 to 15 knots. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots backing south late. Waves
calm to 2 feet.
.THURSDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then backing east late. Waves calm to
2 feet.
.THURSDAY NIGHT...South winds 10 to 20 knots. Waves calm to
2 feet.
.FRIDAY...South winds 10 to 20 knots. Waves calm to 2 feet.
.FRIDAY NIGHT...South winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots becoming southwest 5 to
15 knots. A chance of showers. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ266-291545-
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-
336 AM EDT Wed May 29 2024

.EARLY THIS MORNING...North winds 10 to 20 knots. Waves 1 to
3 feet.
.TODAY...North winds 5 to 15 knots backing northwest late. Waves
subsiding to calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots veering northwest after
midnight, then backing southwest late. Waves calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots backing southeast late.
Waves calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots increasing to 10 to
20 knots after midnight. Waves calm to 2 feet.
.FRIDAY...South winds 10 to 20 knots. Waves calm to 2 feet.
.FRIDAY NIGHT...South winds 10 to 20 knots. A chance of showers
after midnight. Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of showers. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ267-291545-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
336 AM EDT Wed May 29 2024

.EARLY THIS MORNING...North winds 10 to 20 knots. Waves 1 to
3 feet.
.TODAY...North winds 10 to 20 knots backing northwest in the
afternoon. Waves subsiding to calm to 2 feet.
.TONIGHT...West winds 10 to 20 knots becoming northwest 5 to
15 knots after midnight. Waves calm to 2 feet.
.THURSDAY...Northwest winds 5 to 15 knots backing west in the
afternoon, then backing east late. Waves calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots. Waves calm to
2 feet.
.FRIDAY...South winds 10 to 20 knots. Waves calm to 2 feet.
.FRIDAY NIGHT...South winds 10 to 20 knots. Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.SUNDAY...Southeast winds 10 to 20 knots veering south. Waves
calm to 2 feet.

$$

LSZ261-291545-
MAFOR 2909/
Superior West 11820 11110 11100 11200 11300 11200 11100 11200.
Waves 1 foot or less.

Superior North Central 12110 11800 11700 11500 11610 12600. Waves
2 feet or less.

Superior South Central 11810 13800 11700 12600 11500. Waves 1 to
3 feet today. Waves 1 foot or less tonight.

Superior East 11810 11100 11800 13710 12700. 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