A storm tracking across the Southern U.S. will bring heavy to excessive rainfall over portions of west-central Texas into tonight then from central Texas through the central Gulf Coast on Friday. The Southeast U.S. will see heavier rain Saturday. While much of this rainfall will be beneficial to the drought, excessive rainfall may bring areas of flash and urban flooding. Read More >
FZUS63 KMQT 302016
GLFLS
Experimental Tabular Open Lake Forecast for Lake Superior
National Weather Service Negaunee MI
416 PM EDT Thu Apr 30 2026
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...Weak ridging persists between 30.0 and 30.1 inches through early
Saturday as a 30.3 inch high slowly shifts east from the Canadian
Prairies to northwest Ontario and Hudson Bay. Weak troughing of 29.8
inches moves over the lake Saturday night and deepens as low as 29.3
inches by Monday as a stronger low develops over the region.
LSZ162-010800-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 PM EDT Thu Apr 30 2026 /301 PM CDT Thu Apr 30 2026/
.LATE THIS AFTERNOON, Southwest winds 5 to 15 knots. A slight
chance of rain and snow showers. Waves calm to 2 feet.
.TONIGHT, West winds 5 to 15 knots veering north after midnight.
A slight chance of rain and snow showers through midnight. Waves
calm to 2 feet.
.FRIDAY, Northeast winds 5 to 15 knots veering east in the
afternoon, then veering south late. Waves calm to 2 feet.
.FRIDAY NIGHT, Southwest winds 5 to 15 knots veering west after
midnight. Waves calm to 2 feet.
.SATURDAY, Southwest winds 5 to 15 knots backing south by mid
afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT, South winds 5 to 15 knots veering west after
midnight. Waves calm to 2 feet.
.SUNDAY, West winds 10 to 20 knots. Waves calm to 2 feet.
.SUNDAY NIGHT, West winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. Waves building to 1 to 3 feet.
.MONDAY, West winds 15 to 25 knots becoming northwest 10 to
20 knots. A chance of rain showers. Waves building to 2 to
4 feet, then subsiding to calm to 2 feet.
.TUESDAY, West winds 10 to 20 knots becoming northwest 5 to
15 knots. A chance of rain showers. Waves calm to 2 feet.
LSZ162-010200-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
416 PM EDT Thu Apr 30 2026 /316 PM CDT Thu Apr 30 2026/
.Tonight...
Weather.............Mostly cloudy with a slight chance of snow
showers, then mostly cloudy after midnight.
Sfc winds...........Light and variable winds.
100-ft winds........Light and variable winds.
Sig waves...........2 feet or less.
.FRIDAY...
Weather.............Mostly sunny.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........1 to 3 feet.
.FRIDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Light and variable winds.
100-ft winds........Light and variable winds.
Sig waves...........2 feet or less.
.SATURDAY...
Weather.............Sunny.
Sfc winds...........Light and variable winds becoming southwest 5
to 10 knots in the afternoon.
100-ft winds........Light and variable winds becoming southwest 10
to 15 knots in the afternoon.
Sig waves...........1 to 3 feet.
.SATURDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Southeast 5 to 10 knots in the evening becoming
light and variable.
100-ft winds........Southeast 10 to 15 knots in the evening
becoming light and variable.
Sig waves...........1 to 3 feet.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...South winds 10 to 15 knots. Waves 4 to 6 feet.
.MONDAY...Breezy. Chance of showers. South winds 20 to 25 knots.
Waves 4 to 6 feet.
.TUESDAY...West winds 10 to 15 knots. Waves 4 to 6 feet.
$$
LSZ263-010200-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
416 PM EDT Thu Apr 30 2026
.Tonight...
Weather.............Mostly cloudy with a slight chance of snow
showers.
Sfc winds...........West 5 to 10 knots becoming northwest after
midnight.
100-ft winds........West 10 to 15 knots becoming northwest after
midnight.
Sig waves...........1 to 3 feet.
.FRIDAY...
Weather.............Mostly sunny.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FRIDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........Southwest 5 to 10 knots.
100-ft winds........Southwest 10 to 15 knots.
Sig waves...........1 to 3 feet.
.SATURDAY...
Weather.............Mostly sunny.
Sfc winds...........Southwest 5 to 10 knots.
100-ft winds........Southwest 10 to 15 knots.
Sig waves...........1 to 3 feet.
.SATURDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...South winds 10 to 15 knots. Waves 4 to 6 feet.
.MONDAY...Breezy. Chance of showers. South winds 20 to 25 knots.
Waves 4 to 6 feet.
.TUESDAY...West winds 10 to 15 knots. Waves 4 to 6 feet.
$$
LSZ264-010200-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
416 PM EDT Thu Apr 30 2026
.Tonight...
Weather.............Mostly cloudy.
Sfc winds...........West 5 to 10 knots becoming northwest 10 to 15
knots after midnight.
100-ft winds........West 10 to 15 knots becoming northwest 15 to 20
knots after midnight.
Sig waves...........2 to 4 feet.
.FRIDAY...
Weather.............Mostly sunny.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FRIDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet.
.SATURDAY...
Weather.............Sunny.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........1 to 3 feet.
.SATURDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...South winds 10 to 15 knots. Waves 4 to 6 feet.
.MONDAY...Breezy. Chance of showers. South winds 20 to 25 knots.
Waves 4 to 6 feet.
.TUESDAY...West winds 10 to 15 knots. Waves 4 to 6 feet.
$$
LSZ265-010200-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
416 PM EDT Thu Apr 30 2026
.Tonight...
Weather.............Partly cloudy.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FRIDAY...
Weather.............Mostly sunny.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FRIDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........North 5 to 10 knots becoming northwest 10 to 15
knots after midnight.
100-ft winds........North 10 to 15 knots becoming northwest 15 to
20 knots after midnight.
Sig waves...........2 to 4 feet.
.SATURDAY...
Weather.............Sunny.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........1 to 3 feet.
.SATURDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........East 5 to 10 knots becoming south 10 to 15
knots after midnight.
100-ft winds........East 10 to 15 knots becoming south 15 to 20
knots after midnight.
Sig waves...........1 to 3 feet.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...South winds 10 to 15 knots. Waves 4 to 6 feet.
.MONDAY...Breezy. Chance of showers. South winds 20 to 25 knots.
Waves 4 to 6 feet.
.TUESDAY...West winds 10 to 15 knots. Waves 4 to 6 feet.
$$
LSZ266-010200-
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-
416 PM EDT Thu Apr 30 2026
.Tonight...
Weather.............Partly cloudy.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FRIDAY...
Weather.............Mostly sunny.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FRIDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet.
.SATURDAY...
Weather.............Sunny.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........2 to 4 feet.
.SATURDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........East 5 to 10 knots becoming south 10 to 15
knots after midnight.
100-ft winds........East 10 to 15 knots becoming south 15 to 20
knots after midnight.
Sig waves...........2 to 4 feet.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...South winds 10 to 15 knots. Waves 4 to 6 feet.
.MONDAY...Breezy. Chance of showers. South winds 20 to 25 knots.
Waves 4 to 6 feet.
.TUESDAY...West winds 10 to 15 knots. Waves 4 to 6 feet.
$$
LSZ267-010200-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
416 PM EDT Thu Apr 30 2026
.Tonight...
Weather.............Partly cloudy, then mostly cloudy with a slight
chance of snow showers after midnight.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FRIDAY...
Weather.............Mostly sunny.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FRIDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet.
.SATURDAY...
Weather.............Sunny.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
.SATURDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........West 5 to 10 knots becoming south after
midnight.
100-ft winds........West 10 to 15 knots becoming south after
midnight.
Sig waves...........2 to 4 feet.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...South winds 10 to 15 knots. Waves 4 to 6 feet.
.MONDAY...Breezy. Chance of showers. South winds 20 to 25 knots.
Waves 4 to 6 feet.
.TUESDAY...West winds 10 to 15 knots. Waves 4 to 6 feet.
$$
LSZ261-010200-
MAFOR 3021/
Superior West 11500 11600 12800 13100 11300. Waves 1 foot or
less.
Superior North Central 11700 12710 14810 11810. Waves 1 to 2
feet.
Superior South Central 12810 12710 13810 11820. Waves 2 feet or
less.
Superior East 12710 12810 12800 11810 11710. Waves 1 to 2 feet.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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