National Weather Service Marine Forecast FZUS63 KMQT

FZUS63 KMQT 151944
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
344 PM EDT Mon Jul 15 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 29.6 inch trough will sweep across the lake today, moving into Quebec on Tuesday. 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.

LSZ162-160345
Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM
344 PM EDT Mon Jul 15 2024 /244 PM CDT Mon Jul 15 2024/

LATE THIS AFTERNOON
South winds 10 to 20 knots. A chance of showers and a slight chance of thunderstorms. Waves calm to 2 feet.

TONIGHT
West winds 10 to 20 knots veering northwest after midnight. Waves calm to 2 feet.

TUESDAY
West winds 10 to 20 knots veering northwest late. A slight chance of showers by mid afternoon. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet.

TUESDAY NIGHT
Northwest winds 10 to 20 knots veering north late. Waves calm to 2 feet.

WEDNESDAY
North winds 10 to 20 knots becoming west 5 to 15 knots by mid afternoon. Waves building to 1 to 3 feet, then subsiding to 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 by mid afternoon. Waves calm to 2 feet.

THURSDAY NIGHT
Southwest winds 5 to 15 knots becoming west 10 to 20 knots after midnight. Waves calm to 2 feet.

FRIDAY
Southwest winds 10 to 20 knots becoming west 5 to 15 knots. Waves calm to 2 feet.

SATURDAY
East winds 5 to 15 knots backing northeast. Waves calm to 2 feet.

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LSZ263-160345
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
344 PM EDT Mon Jul 15 2024

LATE THIS AFTERNOON
Southeast winds 5 to 15 knots. A chance of showers and thunderstorms. Waves calm to 2 feet.

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

TUESDAY
West winds 5 to 15 knots increasing to 10 to 20 knots in the afternoon. A slight chance of showers and thunderstorms by mid afternoon. Waves building to 1 to 3 feet.

TUESDAY NIGHT
Northwest winds 5 to 15 knots becoming north 10 to 20 knots after midnight. A slight chance of showers after midnight. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet.

WEDNESDAY
North winds 10 to 20 knots becoming west 5 to 15 knots by mid afternoon. Waves subsiding to calm to 2 feet.

WEDNESDAY NIGHT
West winds 5 to 15 knots. Waves calm to 2 feet.

THURSDAY
West winds 5 to 15 knots becoming southwest 10 to 20 knots by mid afternoon. Waves calm to 2 feet.

THURSDAY NIGHT
Southwest winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet.

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

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

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LSZ264-160345
Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border
344 PM EDT Mon Jul 15 2024

LATE THIS AFTERNOON
Southeast winds 5 to 15 knots. Haze. A chance of showers and a slight chance of thunderstorms. Waves calm to 2 feet.

TONIGHT
West winds 5 to 15 knots. Haze through 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 late. Waves building to 1 to 3 feet.

TUESDAY NIGHT
Northwest winds 5 to 15 knots increasing to 10 to 20 knots after midnight, then veering north late. Waves subsiding to calm to 2 feet, then building to 2 to 4 feet.

WEDNESDAY
North winds 10 to 20 knots becoming northwest 5 to 15 knots by mid afternoon. Waves subsiding to calm to 2 feet.

WEDNESDAY NIGHT
West winds 5 to 15 knots. Waves calm to 2 feet.

THURSDAY
West winds 5 to 15 knots backing southwest by mid afternoon. Waves calm to 2 feet.

THURSDAY NIGHT
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.

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

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LSZ265-160345
Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore
344 PM EDT Mon Jul 15 2024

LATE THIS AFTERNOON
Northeast winds 10 to 20 knots. Haze. A chance of showers and thunderstorms. Waves calm to 2 feet.

TONIGHT
East winds 10 to 20 knots backing northwest after midnight, then backing west late. Haze through midnight. A slight chance of showers and thunderstorms through midnight. Waves calm to 2 feet.

TUESDAY
West winds 10 to 20 knots veering northwest in the afternoon, then backing west late. Waves calm to 2 feet.

TUESDAY NIGHT
Northwest winds 10 to 20 knots. Waves calm to 2 feet.

WEDNESDAY
Northwest winds 15 to 25 knots. A slight chance of showers through early afternoon. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet.

WEDNESDAY NIGHT
Northwest winds 10 to 20 knots backing west after midnight. Waves subsiding to calm to 2 feet.

THURSDAY
West winds 10 to 20 knots diminishing to 5 to 15 knots by mid afternoon. Waves calm to 2 feet.

THURSDAY NIGHT
Southwest winds 5 to 15 knots. Waves calm to 2 feet.

FRIDAY
West winds 5 to 15 knots backing southwest. Waves calm to 2 feet.

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

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LSZ266-160345
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
344 PM EDT Mon Jul 15 2024

LATE THIS AFTERNOON
Northeast winds 10 to 20 knots. A chance of showers and a slight chance of thunderstorms. Waves calm to 2 feet.

TONIGHT
East winds 10 to 20 knots backing northwest after midnight. Haze through midnight. A chance of showers and thunderstorms through midnight. Waves calm to 2 feet.

TUESDAY
Northwest winds 10 to 20 knots. Waves building to 1 to 3 feet.

TUESDAY NIGHT
Northwest winds 10 to 20 knots. Waves building to 2 to 4 feet.

WEDNESDAY
Northwest winds 15 to 25 knots. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet.

WEDNESDAY NIGHT
Northwest winds 10 to 20 knots. Waves subsiding to calm to 2 feet.

THURSDAY
Northwest winds 10 to 20 knots becoming west 5 to 15 knots by mid afternoon. Waves calm to 2 feet.

THURSDAY NIGHT
Southwest winds 5 to 15 knots. Waves calm to 2 feet.

FRIDAY
West winds 5 to 15 knots backing southwest. Waves calm to 2 feet.

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

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LSZ267-160345
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border
344 PM EDT Mon Jul 15 2024

DENSE FOG ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING

LATE THIS AFTERNOON
Northeast winds 5 to 15 knots. Patchy fog. A slight chance of showers. Waves calm to 2 feet.

TONIGHT
Northeast winds 10 to 20 knots backing northwest after midnight. Patchy dense fog through midnight. A chance of showers and thunderstorms through midnight. Waves calm to 2 feet.

TUESDAY
Northwest winds 10 to 20 knots backing west in the afternoon. Waves building to 1 to 3 feet.

TUESDAY NIGHT
West winds 10 to 20 knots veering northwest after midnight. Waves 1 to 3 feet.

WEDNESDAY
Northwest winds 10 to 20 knots increasing to 15 to 25 knots by mid afternoon. A slight chance of showers. Waves building to 2 to 4 feet.

WEDNESDAY NIGHT
Northwest winds 10 to 20 knots. Waves subsiding to calm to 2 feet.

THURSDAY
Northwest winds 10 to 20 knots backing west by mid afternoon. Waves calm to 2 feet.

THURSDAY NIGHT
West winds 5 to 15 knots backing southwest after midnight. Waves calm to 2 feet.

FRIDAY
West winds 5 to 15 knots backing southwest. Waves calm to 2 feet.

SATURDAY
Northwest winds 5 to 15 knots becoming northeast 10 to 20 knots. Waves calm to 2 feet.

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LSZ261-160345
MAFOR 1521/ Superior West 11310 11610 13710 12610 11620. A chance of showers this evening. Waves 1 to 3 feet.

Superior North Central 11210 11510 12610 11710 13610. A chance of showers this evening. Waves 2 feet or less.

Superior South Central 12110 15710. A chance of showers and thunderstorms this evening. Waves 2 feet or less.

Superior East 11100 11200 15710. A chance of showers and thunderstorms this evening. Waves 2 feet or less tonight. Waves 2 to 3 feet Tuesday.

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BW

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

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