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FZUS63 KMQT 191354
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
954 AM EDT Fri Jul 19 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 30.1 inch high pressure currently centered over
northern Illinois expands east along the Great Lakes today,
eventually giving way to 30.0 inch trough pushing south from
Canada over the lake tonight into Saturday. A 30.1 inch high
follows, building over Lake Superior Sunday and Monday.

LSZ162-192200-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
954 AM EDT Fri Jul 19 2024 /854 AM CDT Fri Jul 19 2024/

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

$$

LSZ263-192200-
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-
954 AM EDT Fri Jul 19 2024

.REST OF TODAY...Southwest winds 5 to 15 knots increasing to
10 to 20 knots in the afternoon. Waves 1 to 3 feet building to
2 to 4 feet.
.TONIGHT...Southwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. A slight chance of showers and
thunderstorms after midnight. Waves subsiding to calm to 2 feet.
.SATURDAY...Northeast winds 5 to 15 knots. A slight chance of
showers. Waves calm to 2 feet.
.SATURDAY NIGHT...East winds 5 to 15 knots backing north after
midnight. Waves calm to 2 feet.
.SUNDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.MONDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.

$$

LSZ264-192200-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
954 AM EDT Fri Jul 19 2024

.REST OF TODAY...Southwest winds 10 to 20 knots. Waves 1 to
3 feet building to 2 to 4 feet.
.TONIGHT...West winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight, then veering north late. A slight chance of
showers and thunderstorms. Waves subsiding to calm to 2 feet.
.SATURDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.SATURDAY NIGHT...Northwest winds 5 to 15 knots veering north
after midnight. Waves calm to 2 feet.
.SUNDAY...Northeast winds 5 to 15 knots veering south by mid
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Southwest winds less than 10 knots increasing to
5 to 15 knots after midnight. Waves calm to 2 feet.
.MONDAY...East winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...East winds 10 to 20 knots becoming northeast 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ265-192200-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
954 AM EDT Fri Jul 19 2024

.REST OF TODAY...West winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 10 to 20 knots backing southwest after
midnight, then veering west late. Waves calm to 2 feet.
.SATURDAY...Northwest winds 10 to 20 knots veering north in the
afternoon, then diminishing to 5 to 15 knots late. Waves calm to
2 feet.
.SATURDAY NIGHT...North winds 5 to 15 knots. Waves calm to
2 feet.
.SUNDAY...North winds 5 to 15 knots veering east by mid
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 5 to 15 knots veering southwest after
midnight. Waves calm to 2 feet.
.MONDAY...East winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots backing northeast. Waves calm
to 2 feet.

$$

LSZ266-192200-
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-
954 AM EDT Fri Jul 19 2024

.REST OF TODAY...West winds 10 to 20 knots. Waves 1 to 3 feet
building to 2 to 4 feet.
.TONIGHT...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then becoming west 10 to 20 knots late.
Waves subsiding to calm to 2 feet.
.SATURDAY...North winds 10 to 20 knots diminishing to 5 to
15 knots late. A slight chance of showers through early
afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...North winds 5 to 15 knots veering northeast
after midnight. Waves calm to 2 feet.
.SUNDAY...Northeast winds 5 to 15 knots backing north by mid
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.MONDAY...East winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots backing northeast. Waves calm
to 2 feet.

$$

LSZ267-192200-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
954 AM EDT Fri Jul 19 2024

.REST OF TODAY...Southwest winds 10 to 20 knots veering west in
the afternoon, then diminishing to 5 to 15 knots late. Waves calm
to 2 feet.
.TONIGHT...Southwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight, then becoming west 5 to 15 knots late.
Waves calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots becoming north 10 to
20 knots in the afternoon, then backing northwest late. A slight
chance of showers through early afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...North winds 10 to 20 knots becoming northeast
5 to 15 knots after midnight. Waves calm to 2 feet.
.SUNDAY...Northeast winds 5 to 15 knots backing northwest by mid
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY...North winds 5 to 15 knots becoming east 10 to 20 knots.
Waves calm to 2 feet.
.TUESDAY...East winds 10 to 20 knots. Waves calm to 2 feet.

$$

LSZ261-192200-
MAFOR 1915/
Superior West 13520 12510 12610 11710. Waves 1 to 3 feet.

Superior North Central 12520 11530 11620 11610 11710 11800 11110.
Waves 2 to 4 feet this afternoon and tonight. Waves 1 to 2 feet
Saturday morning.

Superior South Central 13610 11510 11500 12610 11710. Waves 1 to
2 feet.

Superior East 12510 14500 11600 11700. Waves 1 to 2 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