220
FZUS63 KDTX 170738
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
338 AM EDT Mon Aug 17 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...An area of low pressure, 29.80 inches, is tracking
east across Ontario this afternoon and will pull 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. High pressure, 30.20
inches, builds in behind the front for Monday and most of
Tuesday.

LHZ361-171545-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
338 AM EDT Mon Aug 17 2026

.TODAY...Northwest winds 5 to 10 knots backing to the west in the
afternoon. Waves 1 to 3 feet.
.TONIGHT...West winds 5 to 10 knots early in the evening becoming
light and variable...then becoming southwest 5 to 10 knots early
in the morning. Waves 2 feet or less.
.TUESDAY...Southwest winds 10 to 15 knots veering to the west
early in the afternoon. A chance of showers and thunderstorms in
the afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. A chance of showers. Waves 1 to
3 feet.
.WEDNESDAY...Northwest winds 5 to 10 knots increasing to 10 to
15 knots late in the morning...then decreasing to 5 to 10 knots
late in the evening. Waves 1 to 3 feet.
.THURSDAY...Northwest winds 5 to 10 knots backing to the west
early in the evening...then veering to the west 5 to 10 knots by
midnight. Waves 2 feet or less.
.FRIDAY...South winds 5 to 10 knots. A chance of showers by
midnight. Waves 2 feet or less.


$$

LHZ362-363-171545-
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-
338 AM EDT Mon Aug 17 2026

.TODAY...Northwest winds 10 to 15 knots. Waves 3 to 5 feet
subsiding to 1 to 3 feet in the afternoon.
.TONIGHT...Light and variable winds becoming southwest 5 to
10 knots early in the morning. Waves 2 feet or less.
.TUESDAY...Southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. A chance of showers
in the afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...South winds 5 to 10 knots veering to the west by
midnight...then becoming northwest 10 to 15 knots after midnight.
A chance of showers and thunderstorms in the evening...then a
chance of showers after midnight. Waves 1 to 3 feet.
.WEDNESDAY...Northwest winds 5 to 10 knots. Waves 1 to 3 feet.
.THURSDAY...Northwest winds 5 to 10 knots veering to the east by
midnight. Waves 2 feet or less.
.FRIDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
. Waves 1 to 3 feet.


$$

LHZ462>464-171545-
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-
338 AM EDT Mon Aug 17 2026

.TODAY...North winds 10 to 15 knots decreasing to 5 to 10 knots
late in the afternoon. Waves 3 to 5 feet subsiding to 2 to 4 feet
late in the afternoon.
.TONIGHT...North winds 5 to 10 knots early in the evening
becoming light and variable. Waves 2 feet or less.
.TUESDAY...Southwest winds 5 to 10 knots. Waves 2 feet or less.
.TUESDAY NIGHT...South winds 5 to 10 knots becoming west 10 to
15 knots in the late evening and overnight. Showers and a chance
of thunderstorms in the evening...then showers likely after
midnight. Waves 1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 15 knots becoming north 5 to
10 knots late in the morning...then veering to the northeast late
in the evening. Waves 2 feet or less.
.THURSDAY...North winds 5 to 10 knots veering to the northeast by
midnight. Waves 2 feet or less.
.FRIDAY...Southeast winds 5 to 10 knots becoming south 10 to
15 knots by midnight. Waves 2 feet or less.


$$

LHZ461-171545-
MAFOR 1709/
HURON NORTH 12800 14700 11600 11500. Waves 1 to 3 feet.

HURON SOUTH 11810 14800 11800 11700 11500. Waves 3 to 5 feet
subsiding to 1 to 3 feet today. Waves 2 feet or less tonight.

$$

KDK

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)