FZUS63 KMQT 230845
GLFLS
Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
345 AM EST Mon Dec 23 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 29.9 inch low pressure system replaces a 30.7 inch
high pressure as it tracks into western Wisconsin this morning
while weakening to 30.0 inches. As the low approaches Lower
Michigan, it continues to fill further to 30.1 inches this
evening. This low pressure system exits into the Lower Great Lakes
Tuesday morning while ridging builds to 30.3 inches over Lake
Superior. Ridging continues over the Upper Great Lakes through at
least Thursday. Low pressure at 29.6 inches moves out of the
central Plains Friday as the pressure averages 29.9 inches over
Lake Superior.
LSZ162-231645-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
345 AM EST Mon Dec 23 2024 /245 AM CST Mon Dec 23 2024/
.EARLY THIS MORNING...North winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...Northeast winds 10 to 20 knots increasing to 15 to
25 knots by late morning, then diminishing to 10 to 20 knots by
mid afternoon. Waves building to 2 to 4 feet.
.TONIGHT...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then veering east late. Waves subsiding to
calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots veering southwest by late
morning, then increasing to 10 to 20 knots by mid afternoon.
Waves calm to 2 feet.
.TUESDAY NIGHT...Southwest winds 10 to 20 knots. Waves calm to
2 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. Waves calm to
2 feet.
.WEDNESDAY NIGHT...Southwest winds 10 to 20 knots. Waves calm to
2 feet.
.THURSDAY...South winds 10 to 20 knots. Waves calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots. A chance of rain
showers. Waves calm to 2 feet.
Note, wave height forecasts are for ice free areas.
$$
LSZ263-231645-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
345 AM EST Mon Dec 23 2024
.EARLY THIS MORNING...North winds 5 to 15 knots. Waves 1 to
3 feet subsiding to calm to 2 feet.
.TODAY...Northeast winds 10 to 20 knots. A slight chance of snow
showers in the morning. Waves building to 2 to 4 feet.
.TONIGHT...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots by midnight. Waves subsiding to 1 to 3 feet.
.TUESDAY...South winds 5 to 15 knots veering southwest by mid
afternoon. Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT...Southwest winds 10 to 20 knots. Waves building
to 1 to 3 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves subsiding to
calm to 2 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...South winds 10 to 20 knots diminishing to 5 to
15 knots. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.
.FRIDAY...Southeast winds 5 to 15 knots. A chance of rain
showers. Waves building to 1 to 3 feet.
Note, wave height forecasts are for ice free areas.
$$
LSZ264-231645-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
345 AM EST Mon Dec 23 2024
.EARLY THIS MORNING...North winds 5 to 15 knots. A slight chance
of snow showers. Waves 2 to 4 feet.
.TODAY...North winds 10 to 20 knots. A slight chance of snow
showers in the morning. Waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet.
.TONIGHT...North winds 10 to 20 knots veering northeast by
midnight, then diminishing to 5 to 15 knots late. Waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 1 to
3 feet.
.TUESDAY...Northeast winds less than 10 knots becoming south 5 to
15 knots. Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT...Southwest winds 5 to 15 knots. Waves building to
1 to 3 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves subsiding to
calm to 2 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots backing south
after midnight. Waves building to 1 to 3 feet.
.THURSDAY...South winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots. A chance of rain
showers. Waves building to 2 to 4 feet.
Note, wave height forecasts are for ice free areas.
$$
LSZ265-231645-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
345 AM EST Mon Dec 23 2024
.EARLY THIS MORNING...Southwest winds 10 to 20 knots. Waves 1 to
3 feet subsiding to calm to 2 feet.
.TODAY...West winds 5 to 15 knots becoming north 10 to 20 knots
by late morning, then increasing to 15 to 25 knots by mid
afternoon. A slight chance of rain and snow showers in the
afternoon. Waves building to 3 to 5 feet occasionally to 7 feet.
.TONIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. Waves subsiding to 2 to 4 feet.
.TUESDAY...North winds 5 to 15 knots backing southwest by late
morning, then backing south by mid afternoon. Waves subsiding to
calm to 2 feet.
.TUESDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...South winds 5 to 15 knots increasing to 10 to
20 knots after midnight. Waves calm to 2 feet.
.THURSDAY...South winds 10 to 20 knots. Waves calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots. A chance of rain
showers. Waves calm to 2 feet.
Note, wave height forecasts are for ice free areas.
$$
LSZ266-231645-
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-
345 AM EST Mon Dec 23 2024
.EARLY THIS MORNING...Southwest winds 15 to 25 knots. A slight
chance of snow showers. Waves 4 to 7 feet occasionally to 9 feet
subsiding to 3 to 6 feet occasionally to 8 feet.
.TODAY...Southwest winds 10 to 20 knots veering north. A slight
chance of snow showers. A slight chance of rain showers in the
afternoon. Waves subsiding to 1 to 3 feet, then building to 3 to
5 feet occasionally to 7 feet.
.TONIGHT...North winds 20 to 30 knots diminishing to 15 to
25 knots by midnight, then becoming northeast 10 to 20 knots
late. Waves subsiding to 2 to 4 feet.
.TUESDAY...Northeast winds 5 to 15 knots veering east by late
morning, then veering south by mid afternoon. Waves subsiding to
calm to 2 feet.
.TUESDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots. Waves calm to
2 feet.
.THURSDAY...South winds 10 to 20 knots. Waves building to 1 to
3 feet.
.FRIDAY...Southeast winds 10 to 20 knots increasing to 15 to
25 knots. A chance of rain showers. Waves building to 2 to
4 feet.
Note, wave height forecasts are for ice free areas.
$$
LSZ267-231645-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
345 AM EST Mon Dec 23 2024
.EARLY THIS MORNING...Southwest winds 15 to 25 knots. A chance of
snow showers, possibly mixed with rain. Waves 4 to 7 feet
occasionally to 9 feet subsiding to 3 to 6 feet occasionally to
8 feet.
.TODAY...Southwest winds 10 to 20 knots veering west by late
morning, then veering north by mid afternoon. A slight chance of
rain and snow showers. Waves subsiding to calm to 2 feet, then
building to 1 to 3 feet.
.TONIGHT...North winds 10 to 20 knots veering northeast by
midnight. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 3 feet.
.TUESDAY...Northeast winds 5 to 15 knots veering southeast by
late morning, then veering south by mid afternoon. Waves
subsiding to calm to 2 feet.
.TUESDAY NIGHT...South winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots backing south in the
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots. Waves calm to
2 feet.
.THURSDAY...South winds 10 to 20 knots. Waves building to 1 to
3 feet.
.FRIDAY...Southeast winds 15 to 25 knots. A chance of rain
showers. Waves building to 2 to 4 feet.
Note, wave height forecasts are for ice free areas.
$$
LSZ261-231645-
MAFOR 2310/
Superior West 11810 14120 11120 12110. Waves 1 to 3 feet building
to 2 to 4 feet today then subsiding to 1 to 3 feet tonight.
Superior North Central 11610 14820 12120 11110. Waves 2 to 4 feet
subsiding to 1 to 3 feet, then building to 2 to 4 feet today
through tonight.
Superior South Central 11520 11600 11810 12820 11830 11820 11810.
Waves 2 to 4 feet subsiding to 2 feet or less, then building to 2
to 4 feet today. Waves 3 to 5 feet tonight.
Superior East 11530 11520 11610 12820 11830 11130 11120. Waves 4
to 7 feet subsiding to 1 to 3 feet today. Waves 2 to 4 feet
building to 3 to 5 feet tonight.
$$
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
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