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National Weather Service Marine Forecast FZUS63 KMQT

FZUS63 KMQT 020236
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
936 PM EST Fri Mar 1 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 29.5 inch low over the Manitoba-Ontario border tracks east, weakening to 29.7 inches as it moves into northern Ontario this evening. As the low continues northeast toward James Bay tonight, a 29.8 inch trough sets up over western Lake Superior, passing over the lake through Saturday morning. A 29.2 inch low develops over the Northern Plains Saturday night, moving northeast toward Manitoba on Sunday. The low then continues northeast through northern Ontario Sunday night and Monday, reaching Hudson Bay Monday night. 30.0 inch ridging extending from the Northern Plains builds in behind the low Monday night. High pressure will continue into northern Ontario, pushing a 30.3 inch ridge across the Upper Great Lakes Tuesday into Wednesday.

LSZ162-021045
Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM
936 PM EST Fri Mar 1 2024 /836 PM CST Fri Mar 1 2024/

REST OF TONIGHT
Southwest winds 10 to 20 knots diminishing to 5 to 15 knots late. Waves calm to 2 feet building to 1 to 3 feet, then subsiding to calm to 2 feet.

SATURDAY
North winds 5 to 15 knots veering east by late morning, then increasing to 10 to 20 knots by mid afternoon. Waves building to 2 to 4 feet.

SATURDAY NIGHT
East winds 10 to 20 knots. Waves building to 3 to 6 feet occasionally to 8 feet.

SUNDAY
East winds 15 to 25 knots. A chance of rain showers. Waves 3 to 6 feet occasionally to 8 feet.

SUNDAY NIGHT
Southwest winds 20 to 30 knots. A few gale force gusts to 35 knots possible in the evening. A chance of rain showers in the evening. Waves building to 4 to 7 feet occasionally to 9 feet.

MONDAY
Southwest winds 15 to 25 knots. A chance of rain and snow. Waves subsiding to 3 to 6 feet occasionally to 8 feet, then building to 4 to 7 feet occasionally to 9 feet.

MONDAY NIGHT
West winds 15 to 25 knots. Waves subsiding to 1 to 3 feet.

TUESDAY
West winds 15 to 25 knots veering northeast. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet.

WEDNESDAY
East winds 15 to 25 knots diminishing to 10 to 20 knots. Waves subsiding to calm to 2 feet.

Note, wave height forecasts are for ice free areas.


LSZ263-021045
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
936 PM EST Fri Mar 1 2024

REST OF TONIGHT
Southwest winds 10 to 20 knots diminishing to 5 to 15 knots late. Waves 2 to 4 feet subsiding to 1 to 3 feet.

SATURDAY
Southwest winds 5 to 15 knots backing northeast by late morning, then becoming east 10 to 20 knots by mid afternoon. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet.

SATURDAY NIGHT
East winds 10 to 20 knots diminishing to 5 to 15 knots by midnight, then becoming southeast 10 to 20 knots late. Waves building to 2 to 4 feet.

SUNDAY
Southeast winds 10 to 20 knots increasing to 15 to 25 knots in the afternoon. A slight chance of rain showers. Waves building to 4 to 7 feet occasionally to 9 feet.

SUNDAY NIGHT
South winds to 20 to 30 knots with occasional gale force gusts to 35 knots becoming southwest 20 to 30 knots after midnight. A chance of rain showers in the evening. Waves building to 5 to 8 feet occasionally to 10 feet.

MONDAY
Southwest winds 20 to 30 knots diminishing to 15 to 25 knots in the afternoon. A chance of rain and snow. Waves subsiding to 3 to 6 feet occasionally to 8 feet.

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

TUESDAY
West winds 10 to 20 knots veering northeast. Waves 1 to 3 feet.

WEDNESDAY
East winds 10 to 20 knots veering southeast. Waves 1 to 3 feet.

Note, wave height forecasts are for ice free areas.


LSZ264-021045
Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border
936 PM EST Fri Mar 1 2024

REST OF TONIGHT
South winds 15 to 25 knots veering southwest by midnight, then diminishing to 10 to 20 knots late. Waves 3 to 6 feet occasionally to 8 feet subsiding to 2 to 4 feet.

SATURDAY
West winds 5 to 15 knots veering north by late morning, then veering east by mid afternoon. Waves subsiding to calm to 2 feet.

SATURDAY NIGHT
East winds 10 to 20 knots veering southeast by midnight, then increasing to 15 to 25 knots late. Waves building to 3 to 6 feet occasionally to 8 feet.

SUNDAY
Southeast winds 20 to 30 knots. A slight chance of rain showers. Waves building to 6 to 9 feet occasionally to 11 feet.

SUNDAY NIGHT
Southeast winds 20 to 30 knots with occasional gale force gusts to 35 knots veering southwest after midnight. A chance of rain showers. Waves building to 7 to 10 feet occasionally to 13 feet.

MONDAY
Southwest winds 20 to 30 knots diminishing to 15 to 25 knots in the afternoon. A chance of rain and snow. Waves subsiding to 3 to 6 feet occasionally to 8 feet.

MONDAY NIGHT
West winds 10 to 20 knots. Waves subsiding to 2 to 4 feet.

TUESDAY
Northwest winds 10 to 20 knots veering north. Waves subsiding to 1 to 3 feet, then building to 2 to 4 feet.

WEDNESDAY
East winds 10 to 20 knots veering southeast. Waves 1 to 3 feet.

Note, wave height forecasts are for ice free areas.


LSZ265-021045
Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore
936 PM EST Fri Mar 1 2024

REST OF TONIGHT
South winds 15 to 25 knots diminishing to 10 to 20 knots by midnight. Waves 2 to 4 feet subsiding to calm to 2 feet.

SATURDAY
Southwest winds 5 to 15 knots backing south by late morning, then becoming east 10 to 20 knots by mid afternoon. Waves calm to 2 feet.

SATURDAY NIGHT
Southeast winds 15 to 25 knots. Waves building to 3 to 5 feet occasionally to 7 feet.

SUNDAY
Southeast winds 20 to 30 knots. Waves building to 4 to 7 feet occasionally to 9 feet.

SUNDAY NIGHT
South winds 20 to 30 knots becoming southwest 15 to 25 knots after midnight. A chance of rain showers. Waves subsiding to 2 to 4 feet.

MONDAY
Southwest winds 10 to 20 knots. A chance of rain. A chance of snow in the afternoon. Waves subsiding to calm to 2 feet.

MONDAY NIGHT
West winds 10 to 20 knots. A chance of rain in the evening. Waves calm to 2 feet.

TUESDAY
Northwest winds 15 to 25 knots veering north. Waves building to 1 to 3 feet.

WEDNESDAY
East winds 15 to 25 knots becoming southeast 10 to 20 knots. Waves 1 to 3 feet.

Note, wave height forecasts are for ice free areas.


LSZ266-021045
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
936 PM EST Fri Mar 1 2024

REST OF TONIGHT
South winds 20 to 30 knots diminishing to 15 to 25 knots late. Waves 5 to 8 feet occasionally to 10 feet subsiding to 3 to 5 feet occasionally to 7 feet.

SATURDAY
Southwest winds 10 to 20 knots becoming south 5 to 15 knots. Waves subsiding to calm to 2 feet.

SATURDAY NIGHT
Southeast winds 10 to 20 knots increasing to 15 to 25 knots by midnight. Waves building to 3 to 6 feet occasionally to 8 feet.

SUNDAY
Southeast winds 20 to 30 knots with occasional gale force gusts to 35 knots. Waves building to 6 to 9 feet occasionally to 11 feet.

SUNDAY NIGHT
South winds 20 to 30 knots with occasional gale force gusts to 35 knots veering southwest after midnight. A chance of rain showers. Waves building to 6 to 10 feet occasionally to 13 feet.

MONDAY
Southwest winds 15 to 25 knots diminishing to 10 to 20 knots in the afternoon. A chance of rain. A chance of snow in the afternoon. Waves subsiding to 3 to 5 feet occasionally to 7 feet.

MONDAY NIGHT
West winds 10 to 20 knots becoming northwest 15 to 25 knots after midnight. A chance of snow in the evening. A chance of rain. Waves subsiding to 2 to 4 feet.

TUESDAY
Northwest winds 15 to 25 knots veering north. Waves 2 to 4 feet.

WEDNESDAY
East winds 15 to 25 knots veering southeast. Waves subsiding to 1 to 3 feet.

Note, wave height forecasts are for ice free areas.


LSZ267-021045
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border
936 PM EST Fri Mar 1 2024

REST OF TONIGHT
South winds 20 to 30 knots diminishing to 15 to 25 knots by midnight, then veering southwest late. Waves 4 to 7 feet occasionally to 9 feet subsiding to 3 to 5 feet occasionally to 7 feet.

SATURDAY
Southwest winds 10 to 20 knots backing south. Waves subsiding to calm to 2 feet.

SATURDAY NIGHT
Southeast winds 10 to 20 knots increasing to 15 to 25 knots by midnight. Waves building to 3 to 5 feet occasionally to 7 feet.

SUNDAY
Southeast winds 20 to 30 knots. A few gale force gusts to 35 knots in the afternoon. Waves building to 6 to 9 feet occasionally to 11 feet.

SUNDAY NIGHT
Southeast winds 20 to 30 knots with occasional gale force gusts to 35 knots becoming south 20 to 30 knots after midnight. A chance of rain showers. Waves building to 7 to 10 feet occasionally to 13 feet, then subsiding to 3 to 6 feet occasionally to 8 feet.

MONDAY
South winds 10 to 20 knots backing north in the afternoon. A chance of rain in the morning, then rain likely in the afternoon. Waves subsiding to calm to 2 feet.

MONDAY NIGHT
Northwest winds 10 to 20 knots increasing to 15 to 25 knots after midnight. A chance of rain. Waves building to 1 to 3 feet.

TUESDAY
Northwest winds 15 to 25 knots veering north. Waves building to 2 to 4 feet.

WEDNESDAY
Northeast winds 15 to 25 knots veering southeast. Waves subsiding to calm to 2 feet.

Note, wave height forecasts are for ice free areas.


LSZ261-021045
MAFOR 0204/ Superior West 11530 11520 11510 11500 11210 11220 12230. Waves 1 to 3 feet overnight and Saturday. Waves 3 to 6 feet Saturday evening.

Superior North Central 11530 12520 11610 11710 11110 11210 11320. Waves 3 to 5 feet overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet Saturday. Waves 1 to 3 feet Saturday evening.

Superior South Central 11430 12420 12410 11310 12320. Waves 3 to 5 feet subsiding to 2 to 4 feet overnight. Waves 1 to 3 feet Saturday. Waves 1 to 3 feet building to 2 to 4 feet Saturday evening.

Superior East 11540 12530 11520 11510 11410 11310 11320. Waves 4 to 7 feet subsiding to 3 to 6 feet overnight. Waves 3 to 5 feet subsiding to 1 to 3 feet Saturday. Waves 1 to 3 feet Saturday evening.


Voss

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

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