National Weather Service Marine Forecast FZUS63 KMQT

FZUS63 KMQT 021421
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1021 AM EDT Tue Jun 2 2020

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 29.6 inch low pressure moving across northern
Ontario will drag a 29.7 inch trough across the Upper Great Lakes
today. In its wake, a 29.8 inch ridge will cross Lake Superior on
Wednesday. A 29.7 inch trough will then sweep across Lake Superior
on Thursday. In its wake, a 30.0 inch ridge will move across the
western Great Lakes early Thursday. Low pressure of 29.7 inches
will then move southeast across northern Ontario on Friday,
followed by a 30.2 high pressure ridge building southeast into
the Upper Great Lakes on Saturday.

LSZ162-022230-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1021 AM EDT Tue Jun 2 2020 /921 AM CDT Tue Jun 2 2020/

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON EDT /11 AM CDT/
TODAY...

REST OF TODAY
West winds 5 to 15 knots becoming southwest
10 to 20 knots in the afternoon, then veering west late. Patchy
dense fog through noon. Waves calm to 2 feet building to 1 to 3
feet.

TONIGHT
West winds 5 to 15 knots. Waves subsiding to calm to
2 feet.

WEDNESDAY
West winds 5 to 15 knots backing southwest in the
afternoon. Waves calm to 2 feet.

WEDNESDAY NIGHT
North winds 5 to 15 knots veering east after
midnight. A slight chance of showers after midnight. Waves calm
to 2 feet.

THURSDAY
Southwest winds 5 to 15 knots becoming west 10 to
20 knots by mid afternoon. A chance of showers. Waves calm to
2 feet.

THURSDAY NIGHT
West winds 10 to 20 knots. Waves building to
1 to 3 feet, then subsiding to calm to 2 feet.

FRIDAY
West winds 10 to 20 knots becoming north 5 to 15 knots.
Waves calm to 2 feet.

SATURDAY
East winds 5 to 15 knots increasing to 10 to
20 knots. A chance of showers. Waves building to 1 to 3 feet,
then subsiding to calm to 2 feet.

LSZ263-022230-
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-
1021 AM EDT Tue Jun 2 2020

DENSE FOG ADVISORY IN EFFECT UNTIL NOON EDT TODAY


REST OF TODAY
West winds 10 to 20 knots backing southwest in
the afternoon. Patchy dense fog through noon. Waves calm to 2
feet building to 1 to 3 feet.

TONIGHT
West winds 5 to 15 knots veering northwest after
midnight, then backing west late. Waves subsiding to calm to
2 feet.

WEDNESDAY
West winds 5 to 15 knots backing southwest in the
afternoon. Waves calm to 2 feet.

WEDNESDAY NIGHT
Southwest winds 5 to 15 knots backing
southeast after midnight. Waves calm to 2 feet.

THURSDAY
South winds 5 to 15 knots becoming west 10 to
20 knots by mid afternoon. A chance of showers. Waves building to
1 to 3 feet.

THURSDAY NIGHT
West winds 10 to 20 knots. Waves 1 to 3 feet.

FRIDAY
West winds 10 to 20 knots becoming north 5 to 15 knots.
Waves subsiding to calm to 2 feet.

SATURDAY
Northeast winds 5 to 15 knots veering east. Waves
building to 1 to 3 feet.

LSZ264-022230-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1021 AM EDT Tue Jun 2 2020

DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON


REST OF TODAY
Southwest winds 5 to 15 knots. Areas of dense fog
gradually dissipating. Waves calm to 2 feet building to 1 to 3
feet.

TONIGHT
West winds 5 to 15 knots veering northwest after
midnight. A slight chance of rain showers after midnight. Waves
subsiding to calm to 2 feet.

WEDNESDAY
West winds 5 to 15 knots backing southwest in the
afternoon. Waves calm to 2 feet.

WEDNESDAY NIGHT
West winds 5 to 15 knots backing southeast
after midnight. Waves calm to 2 feet.

THURSDAY
South winds 5 to 15 knots veering southwest by mid
afternoon. A chance of showers. Waves calm to 2 feet.

THURSDAY NIGHT
West winds 5 to 15 knots. Waves building to
1 to 3 feet.

FRIDAY
West winds 5 to 15 knots veering north. Waves subsiding
to calm to 2 feet.

SATURDAY
Northeast winds 5 to 15 knots veering east. Waves
calm to 2 feet.

LSZ265-022230-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1021 AM EDT Tue Jun 2 2020

DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON


REST OF TODAY
West winds 5 to 15 knots increasing to 10 to
20 knots late. Patchy dense fog. Waves calm to 2 feet.

TONIGHT
West winds 10 to 20 knots becoming northwest 5 to
15 knots late. Waves calm to 2 feet.

WEDNESDAY
Northwest winds 5 to 15 knots veering northeast
late. Waves calm to 2 feet.

WEDNESDAY NIGHT
West winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.

THURSDAY
Southeast winds 5 to 15 knots becoming southwest
10 to 20 knots by mid afternoon. A chance of showers. Waves calm
to 2 feet.

THURSDAY NIGHT
West winds 10 to 20 knots. Waves calm to
2 feet.

FRIDAY
Northwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves calm to 2 feet.

SATURDAY
Northeast winds 5 to 15 knots veering southeast.
Waves calm to 2 feet.

LSZ266-022230-
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-
1021 AM EDT Tue Jun 2 2020

DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON


REST OF TODAY
West winds 5 to 15 knots. Patchy dense fog.
Waves calm to 2 feet building to 1 to 3 feet.

TONIGHT
West winds 5 to 15 knots veering northwest after
midnight. Patchy fog. Waves subsiding to calm to 2 feet.

WEDNESDAY
Northwest winds 5 to 15 knots. Patchy fog through
early afternoon. A slight chance of rain showers through early
afternoon. Waves calm to 2 feet.

WEDNESDAY NIGHT
West winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.

THURSDAY
Southeast winds 5 to 15 knots becoming south 10 to
20 knots by mid afternoon. A chance of showers. Waves calm to
2 feet.

THURSDAY NIGHT
West winds 10 to 20 knots. Waves calm to
2 feet.

FRIDAY
Northwest winds 10 to 20 knots becoming north 5 to
15 knots. Waves calm to 2 feet.

SATURDAY
North winds 5 to 15 knots veering east. Waves calm to
2 feet.

LSZ267-022230-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1021 AM EDT Tue Jun 2 2020

REST OF TODAY
Southwest winds 10 to 20 knots veering west in
the afternoon, then diminishing to 5 to 15 knots late. Scattered
showers and isolated thunderstorms through noon. Patchy fog.
Waves calm to 2 feet.

TONIGHT
West winds 5 to 15 knots veering northwest after
midnight. Areas of dense fog. Waves calm to 2 feet.

WEDNESDAY
Northwest winds 10 to 20 knots backing west in the
afternoon. Areas of dense fog through early afternoon. A slight
chance of rain showers through early afternoon. Waves calm to
2 feet.

WEDNESDAY NIGHT
West winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.

THURSDAY
Southeast winds 5 to 15 knots becoming south 10 to
20 knots by mid afternoon. A chance of showers. Waves calm to
2 feet.

THURSDAY NIGHT
Southwest winds 10 to 20 knots veering west
after midnight. A chance of showers. Waves calm to 2 feet.

FRIDAY
West winds 10 to 20 knots veering north. Waves building
to 1 to 3 feet, then subsiding to calm to 2 feet.

SATURDAY
Northwest winds 10 to 20 knots veering east. Waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.

LSZ261-022230-
MAFOR 0215/
Superior West 11610 19614 11520 11620 12610 11710 12600. Waves 1
to 3 feet.

Superior North Central 13520 11610 11710 13700. Waves 1 to 3
feet.

Superior South Central 13610 11500 11610 11710 12700. Waves 2
feet or less.

Superior East 11600 11613 11600 11500 11604 12704 11714. Waves 1
to 2 feet.

Rolfson

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

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