173
FZUS63 KMQT 150200
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1000 PM EDT Sun Jul 14 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 29.8 inch ridge briefly passes east over the
lake tonight ahead of a stronger 29.6 inch trough that sweeps
across the lake on Monday. This will be followed by a high
averaging 30.1 inches that expands from the Canadian Prairies to
the upper Great Lakes Tuesday through the end of the week.

LSZ162-151000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1000 PM EDT Sun Jul 14 2024 /900 PM CDT Sun Jul 14 2024/

.REST OF TONIGHT...Northwest winds 5 to 15 knots backing west
late. Haze. Waves calm to 2 feet.
.MONDAY...South winds 5 to 15 knots backing east in the
afternoon, then veering west late. Haze through early afternoon.
A chance of showers and thunderstorms. Waves calm to 2 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots becoming west 10 to
20 knots after midnight, then veering northwest late. A slight
chance of showers and thunderstorms through midnight. Waves calm
to 2 feet.
.TUESDAY...West winds 10 to 20 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves calm to 2 feet.
.WEDNESDAY...North winds 10 to 20 knots becoming southwest 5 to
15 knots by mid afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots veering northwest
after midnight. Waves calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots veering west. Waves
calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ263-151000-
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-
1000 PM EDT Sun Jul 14 2024

.REST OF TONIGHT...West winds 5 to 15 knots veering northwest
after midnight, then becoming southwest less than 10 knots late.
Haze. Waves calm to 2 feet.
.MONDAY...South winds less than 10 knots becoming southeast 5 to
15 knots in the afternoon, then backing east late. Haze. A chance
of showers and thunderstorms. Waves calm to 2 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots backing west after
midnight. A slight chance of showers and thunderstorms through
midnight. Waves calm to 2 feet.
.TUESDAY...West winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots veering north
after midnight. Waves calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots backing west by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.FRIDAY...Southwest 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.

$$

LSZ264-151000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1000 PM EDT Sun Jul 14 2024

.REST OF TONIGHT...West winds 5 to 15 knots veering northwest
after midnight, then becoming west less than 10 knots late. Haze.
Waves calm to 2 feet.
.MONDAY...South winds less than 10 knots becoming southeast 5 to
15 knots in the afternoon, then backing east late. Haze. A chance
of showers. A slight chance of thunderstorms by mid afternoon.
Waves calm to 2 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots backing west after
midnight, then veering northwest late. A chance of showers and
thunderstorms through midnight. Waves building to 1 to 3 feet,
then subsiding to calm to 2 feet.
.TUESDAY...West winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots veering north
after midnight. Waves calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots backing northwest by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots veering northwest
after midnight. Waves calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ265-151000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1000 PM EDT Sun Jul 14 2024

.REST OF TONIGHT...Southwest winds 5 to 15 knots veering west.
Haze after midnight. Waves calm to 2 feet.
.MONDAY...South winds 5 to 15 knots backing southeast in the
afternoon, then becoming east 10 to 20 knots late. Haze. A chance
of showers. A chance of thunderstorms by mid afternoon. Waves
calm to 2 feet.
.MONDAY NIGHT...West winds 10 to 20 knots veering northwest after
midnight, then backing west late. A chance of showers and
thunderstorms through midnight. Waves building to 1 to 3 feet,
then subsiding to calm to 2 feet.
.TUESDAY...West winds 10 to 20 knots veering northwest by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots. Waves calm to
2 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots. Waves calm to
2 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots backing west
after midnight. Waves calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots backing southwest. Waves calm
to 2 feet.

$$

LSZ266-151000-
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-
1000 PM EDT Sun Jul 14 2024

.REST OF TONIGHT...South winds 5 to 15 knots veering west. Waves
calm to 2 feet.
.MONDAY...South winds 5 to 15 knots backing southeast in the
afternoon, then becoming east 10 to 20 knots late. Haze through
early afternoon. A chance of showers. A chance of thunderstorms
by mid afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...West winds 10 to 20 knots veering northwest after
midnight. A chance of showers and thunderstorms through midnight.
Waves building to 1 to 3 feet.
.TUESDAY...Northwest winds 10 to 20 knots. Waves subsiding to
calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots. Waves building to
1 to 3 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots. Waves
subsiding to calm to 2 feet.
.THURSDAY...Northwest winds 5 to 15 knots backing southwest.
Waves calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots backing southwest. Waves calm
to 2 feet.

$$

LSZ267-151000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1000 PM EDT Sun Jul 14 2024

.REST OF TONIGHT...South winds 5 to 15 knots veering west. Waves
calm to 2 feet.
.MONDAY...West winds 5 to 15 knots backing southeast in the
afternoon, then backing east late. A chance of showers and a
slight chance of thunderstorms by mid afternoon. Waves calm to
2 feet.
.MONDAY NIGHT...South winds 10 to 20 knots veering west after
midnight, then veering northwest late. A chance of showers and
thunderstorms. Waves building to 1 to 3 feet.
.TUESDAY...Northwest winds 10 to 20 knots backing west by mid
afternoon. Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots. Waves calm to
2 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots. Waves building to
1 to 3 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...Northwest winds 10 to 20 knots becoming west 5 to
15 knots. Waves calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots backing southwest. Waves calm
to 2 feet.

$$
LSZ261-151000-
MAFOR 1503/
Superior West 11710 11600 11500 11400 11306 11216 11600 11710. A
chance of thunderstorms Monday afternoon. Waves 2 feet or less.

Superior North Central 11610 11700 11600 11500 11300 11310 11210
11800. A chance of showers and thunderstorms Monday afternoon and
Monday evening. Waves 1 to 2 feet.

Superior South Central 14600 11300 11310 11316 11510. A chance of
thunderstorms Monday afternoon and Monday evening. Waves 2 feet
or less.

Superior East 14600 12300 12310. A chance of showers Monday
afternoon. A chance of showers and thunderstorms Monday evening.
Waves 2 feet or less.

$$

Jablonski

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

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