NZUS99 KDTX 212106
GLFLHT
Experimental Tabular Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
506 PM EDT Thu May 21 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...High pressure, 30.40 inches, will continue to slowly shift from the
northern Great Lakes to the eastern Great Lakes through Friday.
Northeast wind veers east and strengthen into Saturday as low
pressure tracks in from the Mid-Mississippi Valley.
LHZ361-220200-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
506 PM EDT Thu May 21 2026
.Tonight...
Weather.............Mostly clear.
Sfc winds...........East 5 to 10 knots.
100-ft winds........East 10 to 15 knots.
Sig waves...........1 to 3 feet.
.FRIDAY...
Weather.............Mostly sunny.
Sfc winds...........East 15 to 20 knots.
100-ft winds........East 20 to 25 knots.
Sig waves...........2 to 4 feet building to 3 to 5 feet in the
afternoon.
Ocnl waves..........Around 7 feet in the afternoon.
.FRIDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........East 20 to 25 knots.
100-ft winds........East to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 8 feet.
.SATURDAY...
Weather.............Partly sunny with chance of showers, then
mostly cloudy with showers likely in the
afternoon.
Sfc winds...........East to 30 knots.
100-ft winds........East gales to 35 knots.
Sig waves...........8 to 12 feet.
Ocnl waves..........Around 14 feet.
.SATURDAY NIGHT...
Weather.............Mostly cloudy with showers likely, then mostly
cloudy with chance of showers after midnight.
Sfc winds...........East to 30 knots decreasing to 15 to 20 knots
after midnight.
100-ft winds........East gales to 35 knots decreasing to 20 to 25
knots after midnight.
Sig waves...........8 to 12 feet.
Ocnl waves..........Around 13 feet.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Chance of showers in the morning. North winds 5 to
10 knots. Waves 4 to 6 feet.
.MONDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.
.TUESDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.
$$
LHZ362-363-220200-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond
5NM off shore-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
506 PM EDT Thu May 21 2026
.Tonight...
Weather.............Partly cloudy.
Sfc winds...........Northeast 10 to 15 knots.
100-ft winds........Northeast 15 to 20 knots.
Sig waves...........2 to 4 feet.
.FRIDAY...
Weather.............Mostly sunny.
Sfc winds...........East 15 to 20 knots.
100-ft winds........East 20 to 25 knots.
Sig waves...........2 to 4 feet building to 3 to 5 feet in the
afternoon.
Ocnl waves..........Around 6 feet in the afternoon.
.FRIDAY NIGHT...
Weather.............Mostly cloudy, then chance of showers after
midnight.
Sfc winds...........East 20 to 25 knots.
100-ft winds........East to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 8 feet.
.SATURDAY...
Weather.............Showers likely.
Sfc winds...........East to 30 knots.
100-ft winds........East gales to 35 knots.
Sig waves...........8 to 12 feet.
Ocnl waves..........Around 13 feet.
.SATURDAY NIGHT...
Weather.............Mostly cloudy with showers likely, then mostly
cloudy after midnight.
Sfc winds...........East 20 to 25 knots decreasing to 10 to 15
knots after midnight.
100-ft winds........East to 30 knots decreasing to 15 to 20 knots
after midnight.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 13 feet.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Chance of showers in the morning. North winds 5 to
10 knots. Waves 4 to 6 feet.
.MONDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.
.TUESDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.
$$
LHZ462>464-220200-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
506 PM EDT Thu May 21 2026
.Tonight...
Weather.............Partly cloudy.
Sfc winds...........North 15 to 20 knots becoming northeast 10 to
15 knots after midnight.
100-ft winds........North 20 to 25 knots becoming northeast 15 to
20 knots after midnight.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
.FRIDAY...
Weather.............Partly sunny.
Sfc winds...........East 10 to 15 knots.
100-ft winds........East 15 to 20 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 5 feet.
.FRIDAY NIGHT...
Weather.............Cloudy, then chance of showers after midnight.
Sfc winds...........East 20 to 25 knots.
100-ft winds........East to 30 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
.SATURDAY...
Weather.............Showers likely, then showers in the afternoon.
Sfc winds...........East to 30 knots.
100-ft winds........East gales to 35 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 11 feet.
.SATURDAY NIGHT...
Weather.............Showers, then cloudy after midnight.
Sfc winds...........East 20 to 25 knots decreasing to 10 to 15
knots after midnight.
100-ft winds........East to 30 knots decreasing to 15 to 20 knots
after midnight.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 9 feet.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Chance of showers in the morning. North winds 5 to
10 knots. Waves 4 to 6 feet.
.MONDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.
.TUESDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.
$$
LHZ461-220200-
MAFOR 2121/
HURON NORTH 11700 11800 12100 11200 13210. Waves 2 feet or
less tonight. Waves 1 to 3 feet Friday.
HURON SOUTH 13110 13200 12110. Waves 1 to 3 feet.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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