352
FZUS63 KMQT 081401
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1000 AM EDT Mon Jun 8 2026

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...

Weak ridging around 30.0 inches lingers over Lake Superior today.
Pressure falls to around 29.9 inches over the lake on Tuesday as
30.2 inch high pressure moves off the Mid Atlantic coast and 29.5
inch troughing over the Rockies deepens to 29.2 inches over the
Northern Plains. Pressure continues to deepen to around 29.5 inches
over the lake through Wednesday as the low tracks eastward into NW
Ontario at 29.2 inches by Wednesday evening. Pressure holds at
around 29.6 inches over the lake through the end of the week as
another Colorado low lifts into the Great Lakes at around 29.5
inches on Thursday.



LSZ162-082000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1000 AM EDT Mon Jun 8 2026 /900 AM CDT Mon Jun 8 2026/

.REST OF TODAY...Northeast winds 10 to 20 knots. Showers likely
by late morning. A slight chance of thunderstorms. A chance of
showers by mid afternoon. Waves calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots backing northeast after
midnight, then diminishing to less than 10 knots late. A slight
chance of showers and thunderstorms through midnight. Waves calm
to 2 feet.
.TUESDAY...East winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Northeast winds 5 to 15 knots. A chance of
showers and a slight chance of thunderstorms after midnight.
Waves calm to 2 feet.
.WEDNESDAY...East winds 10 to 20 knots. A chance of showers
through early afternoon. A chance of thunderstorms. Showers by
mid afternoon. Waves building to 1 to 3 feet, then subsiding to
calm to 2 feet.
.WEDNESDAY NIGHT...East winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. Showers likely and a chance of
thunderstorms through midnight. Waves building to 2 to 4 feet.
.THURSDAY...Southwest winds 20 to 30 knots diminishing to 15 to
25 knots. A chance of showers. Waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet.
.FRIDAY...Southwest winds 20 to 30 knots becoming west 10 to
20 knots. Waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to calm to 2 feet.

$$

LSZ263-082000-
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 AM EDT Mon Jun 8 2026

.REST OF TODAY...East winds 5 to 15 knots. A chance of showers
and a slight chance of thunderstorms. Waves calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots veering southeast after
midnight, then becoming northeast less than 10 knots late. A
slight chance of thunderstorms through midnight. A chance of rain
showers. Waves building to 1 to 3 feet, then subsiding to calm to
2 feet.
.TUESDAY...Northeast winds less than 10 knots increasing to 5 to
15 knots late. Waves calm to 2 feet.
.TUESDAY NIGHT...East winds 5 to 15 knots. A chance of showers
and a slight chance of thunderstorms after midnight. Waves calm
to 2 feet.
.WEDNESDAY...East winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. A chance of showers through early
afternoon. A chance of thunderstorms. Showers by mid afternoon.
Waves building to 2 to 4 feet.
.WEDNESDAY NIGHT...South winds 15 to 25 knots veering southwest
after midnight. Showers and a chance of thunderstorms through
midnight. Waves building to 3 to 6 feet occasionally to 8 feet.
.THURSDAY...Southwest winds 20 to 30 knots. A chance of showers.
Waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet.
.FRIDAY...Southwest winds 20 to 30 knots becoming west 15 to
25 knots. Waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 2 to 4 feet.

$$

LSZ264-082000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1000 AM EDT Mon Jun 8 2026

.REST OF TODAY...Southeast winds 5 to 15 knots increasing to
10 to 20 knots in the afternoon. A chance of showers. A slight
chance of thunderstorms by mid afternoon. Waves 1 to 3 feet
building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.TONIGHT...Southeast winds 5 to 15 knots. Rain showers likely
through midnight. A slight chance of thunderstorms. A chance of
rain showers after midnight. Waves subsiding to calm to 2 feet.
.TUESDAY...East winds less than 10 knots. A slight chance of
showers through early afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots. Waves calm to
2 feet.
.WEDNESDAY...Southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. A chance of showers and thunderstorms.
Waves building to 3 to 5 feet occasionally to 7 feet.
.WEDNESDAY NIGHT...South winds 15 to 25 knots becoming southwest
10 to 20 knots after midnight. Showers and a chance of
thunderstorms through midnight. Waves 3 to 5 feet occasionally to
7 feet.
.THURSDAY...Southwest winds 15 to 25 knots increasing to 20 to
30 knots. A chance of showers. Waves building to 4 to 7 feet
occasionally to 9 feet.
.FRIDAY...Southwest winds 20 to 30 knots diminishing to 15 to
25 knots. Waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 2 to 4 feet.

$$

LSZ265-082000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1000 AM EDT Mon Jun 8 2026

.REST OF TODAY...Southeast winds 15 to 25 knots. A slight chance
of showers and thunderstorms by mid afternoon. Waves 1 to 3 feet
building to 2 to 4 feet.
.TONIGHT...Southeast winds 10 to 20 knots diminishing to 5 to
15 knots late. A slight chance of thunderstorms through midnight.
Showers. Waves subsiding to calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots. A chance of showers and a
slight chance of thunderstorms through early afternoon. Waves
calm to 2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots. Waves calm to
2 feet.
.WEDNESDAY...Southeast winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. A chance of showers and thunderstorms.
Waves building to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY NIGHT...South winds 20 to 30 knots becoming southwest
15 to 25 knots after midnight. Showers likely and a chance of
thunderstorms through midnight. Waves subsiding to 2 to 4 feet.
.THURSDAY...Southwest winds 15 to 25 knots. A chance of showers.
Waves subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet.
.FRIDAY...West winds 20 to 30 knots diminishing to 15 to
25 knots. Waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet.

$$

LSZ266-082000-
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 AM EDT Mon Jun 8 2026

.REST OF TODAY...Southeast winds 10 to 20 knots. A slight chance
of showers by mid afternoon. Waves 1 to 3 feet building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.TONIGHT...Southeast winds 10 to 20 knots diminishing to 5 to
15 knots late. A chance of showers through midnight. A slight
chance of thunderstorms. Showers likely after midnight. Waves
building to 2 to 4 feet, then subsiding to calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots. A slight chance of
thunderstorms through early afternoon. A chance of showers. Waves
calm to 2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots. Waves calm to
2 feet.
.WEDNESDAY...Southeast winds 15 to 25 knots. A slight chance of
showers. A slight chance of thunderstorms by mid afternoon. Waves
building to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY NIGHT...South winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. Showers likely and a chance of
thunderstorms through midnight, then a chance of showers after
midnight. Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.THURSDAY...South winds 10 to 20 knots becoming southwest 15 to
25 knots. A chance of showers. Waves building to 3 to 6 feet
occasionally to 8 feet.
.FRIDAY...West winds 15 to 25 knots becoming southwest 10 to
20 knots. Waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 2 to 4 feet.

$$

LSZ267-082000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1000 AM EDT Mon Jun 8 2026

.REST OF TODAY...Southeast winds 10 to 20 knots. A slight chance
of showers by mid afternoon. Waves 1 to 3 feet.
.TONIGHT...Southeast winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then diminishing to 10 to 20 knots late.
A chance of showers. A slight chance of thunderstorms after
midnight. Waves building to 2 to 4 feet, then subsiding to calm
to 2 feet.
.TUESDAY...East winds 10 to 20 knots becoming northeast 5 to
15 knots late. A chance of showers. A slight chance of
thunderstorms by mid afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Northeast winds 5 to 15 knots veering southwest
after midnight. A slight chance of showers through midnight.
Waves calm to 2 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. Waves building to 1 to 3 feet.
.WEDNESDAY NIGHT...Southeast winds 15 to 25 knots veering south
after midnight. Showers likely through midnight. A chance of
thunderstorms. A chance of showers after midnight. Waves building
to 3 to 5 feet occasionally to 7 feet.
.THURSDAY...South winds 10 to 20 knots veering southwest. A
chance of showers. Waves subsiding to calm to 2 feet, then
building to 2 to 4 feet.
.FRIDAY...West winds 10 to 20 knots backing southwest. Waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet.

$$

LSZ261-082000-
MAFOR 0815/
Superior West 11216 11210 11110 11210 11200 13100. Waves 2 feet
or less.

Superior North Central 13320 11326 11310 11316 11306 11300. Waves
1 to 3 feet building to 2 to 4 feet this afternoon. Waves 2 to 4
feet subsiding to 1 to 3 feet tonight. Waves 1 to 3 feet Tuesday
morning.

Superior South Central 13330 11320 11326 11316 11306 11200. Waves
2 to 4 feet this afternoon. Waves 2 to 4 feet subsiding to 1 to 2
feet tonight. Waves 1 to 2 feet Tuesday morning.

Superior East 15320 11316 11216. Waves 2 to 4 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