FZUS63 KMQT 171415
GLFLS
Experimental Tabular Open Lake Forecast for Lake Superior
National Weather Service Negaunee MI
1015 AM EDT Wed Jul 17 2024
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 30.2 inch high pressure over southern Manitoba/North
Dakota sags southeast into the the Minnesota/Wisconsin/Iowa area
by Thursday morning. The high weakens to 30.1 inches as it slips
south of Lake Superior Thursday night. Behind the ridging, weak
30.0 inch troughing pushes over the lake Friday into Saturday.
More broad 30.2 inch high pressure ridging extends across much of
the Upper Midwest and Upper Great Lakes Sunday. This is quickly
followed by an additional weak trough at 30.0 inches that drops
south across the Upper Great Lakes Sunday night and Monday.
LSZ162-172200-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
947 AM EDT Wed Jul 17 2024 /847 AM CDT Wed Jul 17 2024/
.REST OF TODAY, North winds 10 to 20 knots backing west in the
afternoon, then diminishing to 5 to 15 knots late. Waves 1 to
3 feet subsiding to calm to 2 feet.
.TONIGHT, West winds 5 to 15 knots veering northwest after
midnight. Waves calm to 2 feet.
.THURSDAY, West winds 5 to 15 knots backing southwest in the
afternoon, then increasing to 10 to 20 knots late. Waves calm to
2 feet.
.THURSDAY NIGHT, Southwest winds 10 to 20 knots veering west
after midnight. Waves calm to 2 feet.
.FRIDAY, Southwest winds 10 to 20 knots. Waves building to 1 to
3 feet.
.FRIDAY NIGHT, Southwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.SATURDAY, East winds 5 to 15 knots backing northeast. Waves
calm to 2 feet.
.SUNDAY, Northeast winds 5 to 15 knots backing west. Waves calm
to 2 feet.
LSZ162-172000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1015 AM EDT Wed Jul 17 2024 /915 AM CDT Wed Jul 17 2024/
.This Afternoon...
Weather.............Mostly sunny.
Sfc winds...........North 10 to 15 knots becoming west 5 to 10
knots in the afternoon.
100-ft winds........North 15 to 20 knots becoming west 10 to 15
knots in the afternoon.
Sig waves...........2 to 4 feet.
.TONIGHT...
Weather.............Mostly clear.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........1 to 3 feet.
.THURSDAY...
Weather.............Sunny.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet.
.THURSDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...South winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
.SUNDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
$$
LSZ263-172000-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
1015 AM EDT Wed Jul 17 2024
.This Afternoon...
Weather.............Mostly sunny.
Sfc winds...........North 15 to 20 knots.
100-ft winds........North 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
.TONIGHT...
Weather.............Mostly clear.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
.THURSDAY...
Weather.............Sunny.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet.
.THURSDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...South winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
.SUNDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
$$
LSZ264-172000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1015 AM EDT Wed Jul 17 2024
.This Afternoon...
Weather.............Partly sunny.
Sfc winds...........North 20 to 25 knots decreasing to 10 to 15
knots in the afternoon.
100-ft winds........North to 30 knots decreasing to 15 to 20 knots
in the afternoon.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 7 feet.
.TONIGHT...
Weather.............Mostly clear.
Sfc winds...........Northwest 10 to 15 knots becoming west 5 to 10
knots after midnight.
100-ft winds........Northwest 15 to 20 knots becoming west 10 to 15
knots after midnight.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet in the evening.
.THURSDAY...
Weather.............Sunny.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
.THURSDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...South winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
.SUNDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
$$
LSZ265-172000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1015 AM EDT Wed Jul 17 2024
.This Afternoon...
Weather.............Mostly cloudy with a slight chance of showers,
then partly sunny in the afternoon.
Sfc winds...........Northwest 20 to 25 knots.
100-ft winds........Northwest to 30 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
.TONIGHT...
Weather.............Mostly clear.
Sfc winds...........North 10 to 15 knots becoming west after
midnight.
100-ft winds........North 15 to 20 knots becoming west after
midnight.
Sig waves...........4 to 6 feet subsiding to 2 to 4 feet after
midnight.
Ocnl waves..........Around 8 feet in the evening.
.THURSDAY...
Weather.............Sunny.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........1 to 3 feet.
.THURSDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........Light and variable winds becoming southwest 5
to 10 knots after midnight.
100-ft winds........Light and variable winds becoming southwest 10
to 15 knots after midnight.
Sig waves...........2 feet or less.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...South winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
.SUNDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
$$
LSZ266-172000-
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-
1015 AM EDT Wed Jul 17 2024
.This Afternoon...
Weather.............Mostly cloudy with a slight chance of showers,
then partly sunny in the afternoon.
Sfc winds...........Northwest 20 to 25 knots.
100-ft winds........Northwest to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 8 feet.
.TONIGHT...
Weather.............Mostly clear.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........5 to 7 feet subsiding to 3 to 5 feet after
midnight.
Ocnl waves..........Around 9 feet subsiding to around 5 feet after
midnight.
.THURSDAY...
Weather.............Sunny.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........2 to 4 feet.
.THURSDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........Southwest 5 to 10 knots.
100-ft winds........Southwest 10 to 15 knots.
Sig waves...........2 to 4 feet.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...South winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
.SUNDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
$$
LSZ267-172000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1015 AM EDT Wed Jul 17 2024
.This Afternoon...
Weather.............Partly sunny with a slight chance of showers,
then partly sunny in the afternoon.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........3 to 5 feet building to 5 to 7 feet in the
afternoon.
Ocnl waves..........Around 6 feet building to around 9 feet in the
afternoon.
.TONIGHT...
Weather.............Mostly clear.
Sfc winds...........Northwest 15 to 20 knots decreasing to 5 to 10
knots after midnight.
100-ft winds........Northwest 20 to 25 knots decreasing to 10 to 15
knots after midnight.
Sig waves...........5 to 7 feet subsiding to 3 to 5 feet after
midnight.
Ocnl waves..........Around 9 feet subsiding to around 5 feet after
midnight.
.THURSDAY...
Weather.............Sunny.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........2 to 4 feet.
.THURSDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........1 to 3 feet.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...South winds 10 to 15 knots. Waves 3 to 5 feet.
.SATURDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
.SUNDAY...North winds 5 to 10 knots. Waves 2 to 4 feet.
$$
LSZ261-172000-
MAFOR 1715/
Superior West 11720 13610 11600 12700 11600. Waves 1 to 3 feet.
Superior North Central 11830 12720 12610 12700 11600. Waves 3 to
5 feet subsiding to 2 to 4 feet this afternoon. Waves 1 to 3 feet
tonight and Thursday morning.
Superior South Central 12830 11820 14710 11600. Waves 3 to 6 feet
this afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet
tonight. Waves 1 to 2 feet Thursday morning.
Superior East 13730 11720 12710 12700. Waves 2 to 4 feet building
to 3 to 5 feet this afternoon. Waves 3 to 5 feet subsiding to 2
to 4 feet tonight. Waves 1 to 2 feet Thursday morning.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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