Great Lakes Forecast
Issued by NWS

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590
FZUS63 KDTX 161347
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
947 AM EDT Sun Aug 16 2026

For waters beyond five nautical miles off shore on Lake Huron

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 of 30.20 inches moves over the Northeast
through today as low pressure of 29.6 inches moves east across
Ontario. As the low tracks east, it will push a cold front across
the central Great Lakes region late this evening. This cold front
brings in a 6-8 hour bout of 20-25 knot northwest winds tonight
into early Monday morning and chances for thunderstorms this
afternoon and evening.

LHZ361-162200-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
947 AM EDT Sun Aug 16 2026

.REST OF TODAY...South winds 5 to 10 knots veering to the west
late in the afternoon. Showers likely and a chance of
thunderstorms late in the morning...then a chance of showers in
the afternoon. Waves 1 to 3 feet.
.TONIGHT...Northwest winds 10 to 15 knots increasing to 15 to
20 knots by midnight...then decreasing to 10 to 15 knots early in
the morning. Waves 3 to 5 feet.
.MONDAY...Northwest winds 5 to 10 knots backing to the west early
in the afternoon. Waves 2 to 4 feet subsiding to 2 feet or less
in the late morning and afternoon.
.MONDAY NIGHT...West winds 5 to 10 knots early in the evening
becoming light and variable...then becoming south 5 to 10 knots
after midnight. Waves 2 feet or less.
.TUESDAY...Southwest winds 10 to 15 knots veering to the
northwest late in the afternoon. A chance of thunderstorms late
in the morning. A chance of showers late in the morning. Waves
1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and early afternoon...then
increasing to 10 to 15 knots early in the evening becoming
northwest 5 to 10 knots by midnight. Waves 1 to 3 feet building
to 2 to 4 feet .
.THURSDAY...Northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming northwest 5 to
10 knots by midnight. Waves 2 feet or less.


$$

LHZ362-363-162200-
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-
947 AM EDT Sun Aug 16 2026

.REST OF TODAY...South winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. A chance of showers in the afternoon.
Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon.
.TONIGHT...West winds 5 to 10 knots becoming northwest 15 to
20 knots in the late evening and overnight. A chance of showers
in the evening. Waves 2 to 4 feet building to 4 to 6 feet in the
late evening and overnight. Waves occasionally around 8 feet.
.MONDAY...Northwest winds 10 to 15 knots becoming north 5 to
10 knots in the late morning and afternoon. Waves 3 to 5 feet
subsiding to 2 to 4 feet early in the afternoon.
.MONDAY NIGHT...Light and variable winds becoming southwest 5 to
10 knots after midnight. Waves 2 feet or less.
.TUESDAY...Southwest winds 5 to 10 knots increasing to 10 to
15 knots late in the morning...then veering to the northwest late
in the evening. A chance of showers. A chance of thunderstorms
late in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet
late in the evening.
.WEDNESDAY...Northwest winds 10 to 15 knots decreasing to 5 to
10 knots. A chance of showers early in the morning. Waves 2 to
4 feet subsiding to 1 to 3 feet in the late morning and early
afternoon...then building to 2 to 4 feet .
.THURSDAY...Northwest winds 5 to 10 knots veering to the east by
midnight. Waves 2 feet or less.


$$

LHZ462>464-162200-
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-
947 AM EDT Sun Aug 16 2026

.REST OF TODAY...Southeast winds 10 to 15 knots becoming south
5 to 10 knots in the afternoon. A chance of showers in the
afternoon. Waves 1 to 3 feet.
.TONIGHT...North winds 5 to 10 knots becoming northwest 10 to
15 knots late in the evening...then increasing to 15 to 20 knots
after midnight. A chance of showers. Waves 1 to 3 feet building
to 4 to 6 feet after midnight. Waves occasionally around 8 feet.
.MONDAY...Northwest winds 10 to 15 knots. Waves 3 to 5 feet.
.MONDAY NIGHT...Light and variable winds. Waves 1 to 3 feet.
.TUESDAY...Southwest winds 5 to 10 knots becoming south 10 to
15 knots late in the afternoon...then veering to the west late in
the evening. Showers likely and a chance of thunderstorms late in
the afternoon. Rain showers likely late in the evening. Waves
1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 15 knots. Showers likely early
in the morning. Waves 1 to 3 feet.
.THURSDAY...Northwest winds 5 to 10 knots veering to the
northeast by midnight. Waves 2 feet or less.


$$

LHZ461-162200-
MAFOR 1615/
HURON NORTH 11410 11400 11616 13720 11810 11800. Waves 1 to
3 feet this afternoon. Waves 1 to 3 feet building to 3 to 5 feet
tonight. Waves 1 to 3 feet Monday morning.

HURON SOUTH 12400 11500 11710 12720 12810. A chance of
showers this evening. Waves 1 to 3 feet this afternoon. Waves 2
feet or less building to 3 to 5 feet tonight. Waves 3 to 5 feet
subsiding to 2 to 4 feet Monday morning.

$$

SS

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftable (all lower case)

Graphical marine forecasts are available online at
weather.gov/greatlakes (all lower case)