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FZUS63 KMQT 030145
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
945 PM EDT Tue Jul 2 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 29.3 inch low shifts east-northeast over far
northern Ontario through Wednesday, dragging a 29.7 inch trough
across Lake Superior tonight and Wednesday morning as the low
continues over Hudson Bay. In its wake, a weak 29.9 inch high
pressure ridge will shift east, reaching the western Great Lakes
on Thursday. A 29.7 inch low pressure organizing over the Plains
on Thursday will then track to the western Great Lakes region on
Friday. The low continues northeast over the Great Lakes, reaching
Quebec by Saturday evening. Then a 29.8 inch trough approaches
the western Great Lakes on Sunday.

LSZ162-030945-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
945 PM EDT Tue Jul 2 2024 /845 PM CDT Tue Jul 2 2024/

.REST OF TONIGHT...South winds 10 to 20 knots veering southwest
after midnight. A chance of showers and a slight chance of
thunderstorms by late evening. Patchy fog after midnight. Waves
calm to 2 feet.
.WEDNESDAY...Southwest winds 15 to 25 knots veering west late.
Waves building to 2 to 4 feet.
.WEDNESDAY NIGHT...West winds 10 to 20 knots diminishing to 5 to
15 knots late. Waves subsiding to calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots backing east by mid
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...East winds 5 to 15 knots backing northeast
after midnight. Waves calm to 2 feet.
.FRIDAY...Northeast winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.FRIDAY NIGHT...North winds 5 to 15 knots backing northwest after
midnight. Waves calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots increasing to 10 to
20 knots. Waves calm to 2 feet.
.SUNDAY...Southwest winds 10 to 20 knots veering west. A chance
of showers. Waves calm to 2 feet.

$$

LSZ263-030945-
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-
945 PM EDT Tue Jul 2 2024

.REST OF TONIGHT...South winds 10 to 20 knots veering southwest
late. A slight chance of thunderstorms by late evening. A chance
of showers. Patchy fog after midnight. Waves 1 to 3 feet.
.WEDNESDAY...West winds 15 to 25 knots backing southwest in the
afternoon. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.
.WEDNESDAY NIGHT...West winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing south by mid
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...East winds 5 to 15 knots backing northeast
after midnight. Waves calm to 2 feet.
.FRIDAY...Northeast winds 5 to 15 knots. A chance of showers.
Waves calm to 2 feet.
.FRIDAY NIGHT...North winds 5 to 15 knots. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.
.SUNDAY...Southwest winds 5 to 15 knots. A chance of showers.
Waves calm to 2 feet.

$$

LSZ264-030945-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
945 PM EDT Tue Jul 2 2024

.REST OF TONIGHT...South winds 15 to 25 knots diminishing to
10 to 20 knots after midnight, then veering southwest late. A
chance of showers. Patchy fog after midnight. Waves 3 to 6 feet
occasionally to 8 feet subsiding to 1 to 3 feet.
.WEDNESDAY...Southwest winds 15 to 25 knots. Waves building to
2 to 4 feet.
.WEDNESDAY NIGHT...West winds 15 to 25 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing south by mid
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds less than 10 knots becoming
east 5 to 15 knots after midnight. Waves calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots backing northeast by mid
afternoon. Waves calm to 2 feet.
.FRIDAY NIGHT...North winds 5 to 15 knots. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots veering southwest. Waves calm
to 2 feet.

$$

LSZ265-030945-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
945 PM EDT Tue Jul 2 2024

.REST OF TONIGHT...South winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. Showers likely by late evening,
then a chance of showers after midnight. Waves 2 to 4 feet
subsiding to calm to 2 feet.
.WEDNESDAY...West winds 10 to 20 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 10 to 20 knots diminishing to 5 to
15 knots late. Waves calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing east by mid
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots backing east
after midnight. Waves calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots becoming northeast 10 to
20 knots by mid afternoon. A chance of showers. Waves calm to
2 feet.
.FRIDAY NIGHT...North winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.SATURDAY...Northwest winds 10 to 20 knots becoming south 5 to
15 knots. Waves calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots becoming southwest 10 to
20 knots. A chance of showers. Waves calm to 2 feet.

$$

LSZ266-030945-
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-
945 PM EDT Tue Jul 2 2024

.REST OF TONIGHT...South winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. Patchy fog. A chance of showers.
Waves 3 to 6 feet occasionally to 8 feet subsiding to 1 to
3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots becoming west 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. A slight chance of showers through early afternoon. Waves
building to 2 to 4 feet.
.WEDNESDAY NIGHT...West winds 10 to 20 knots diminishing to 5 to
15 knots late. Waves subsiding to calm to 2 feet.
.THURSDAY...Northwest winds 5 to 15 knots veering northeast by
mid afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...East winds 5 to 15 knots. Waves calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots becoming northeast 10 to
20 knots by mid afternoon. A chance of showers. Waves calm to
2 feet.
.FRIDAY NIGHT...North winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.SATURDAY...Northwest winds 10 to 20 knots becoming south 5 to
15 knots. Waves calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.

$$

LSZ267-030945-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
945 PM EDT Tue Jul 2 2024

.REST OF TONIGHT...South winds 15 to 25 knots diminishing to
10 to 20 knots late. Patchy fog. A slight chance of showers by
late evening. Showers after midnight. Waves 2 to 4 feet subsiding
to 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots veering west in the
afternoon. A slight chance of showers through early afternoon.
Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...Southwest winds 10 to 20 knots veering west
after midnight, then diminishing to 5 to 15 knots late. Waves
calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots veering northwest by mid
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...North winds 5 to 15 knots veering east after
midnight. Waves calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots becoming northeast 10 to
20 knots by mid afternoon. A chance of showers. Waves calm to
2 feet.
.FRIDAY NIGHT...Northeast winds 10 to 20 knots. A chance of
showers. Waves calm to 2 feet.
.SATURDAY...Northwest winds 10 to 20 knots backing west. Waves
calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.

$$
LSZ261-030945-
MAFOR 0303/
Superior West 11410 11520 11620 11520 13530 11620. A chance of
showers late this evening. Waves around 2 feet overnight. Waves 2
to 4 feet Wednesday and Wednesday evening.

Superior North Central 11430 11420 12520 13530 11630. A chance of
showers overnight. Waves 3 to 6 feet subsiding to 2 to 4 feet
overnight. Waves 2 to 4 feet Wednesday and Wednesday evening.

Superior South Central 11426 11416 11410 11510 14620. Waves 2 to
4 feet subsiding to 1 to 3 feet overnight. Waves 1 to 2 feet
Wednesday and Wednesday evening.

Superior East 12426 11410 12510 11610 12510. Waves 3 to 5 feet
subsiding to 2 to 4 feet overnight. Waves 1 to 3 feet Wednesday
and Wednesday evening.

$$

Thompson

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

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