188
FZUS63 KMKX 191958
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
258 PM CDT Sat Oct 19 2024

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan.

Waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.SYNOPSIS...

Current high pressure of 30.6 inches over the northeast US will
gradually weaken, sliding southeast through this weekend. Breezy
south-southwesterly winds are expected. Gusty conditions are
expected across the northern half today into Sunday as low
pressure of 29.6 inches moves from Western Canada into the Hudson
Bay region impinging on the high pressure now around 30.4 inches
in the eastern US. Showers possible across the far northern
portions of the lake late tonight into Sunday.

Monday, a developing low of 29.6 inches in the western US will
gradually impinge and weaken the high in the east and pushing the
high out by Tuesday evening with a front expected to slide through
as the low slides northeast through the Hudson Bay area. Better
chance for showers comes Tuesday night into Wednesday.

LMZ261-362-364-366-563-565-567-868-200315-
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and north of a line from Charlevoix MI to South
Fox Island 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid
Lake-
258 PM CDT Sat Oct 19 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...South winds to 30 kt becoming southwest 15 to 25 kt.
Waves 4 to 7 ft occasionally to 9 ft.
.SUNDAY...Southwest winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 3 to 5 ft.
.SUNDAY NIGHT...Southwest winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 4 to 6 ft occasionally to 8 ft.
.MONDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt.
Waves 2 to 4 ft.
.MONDAY NIGHT...South winds 10 to 20 kt becoming southwest. Waves
2 to 4 ft.
.TUESDAY...South winds 15 to 25 kt increasing to 30 kt. Waves
3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.TUESDAY NIGHT...South winds to 30 kt becoming west. Chance of
showers. Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY...Northwest winds 15 to 25 kt. Showers likely. Waves
3 to 5 ft.
.THURSDAY...Northwest winds 10 to 20 kt becoming west. Waves 2 to
4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-200315-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
258 PM CDT Sat Oct 19 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...South winds 10 to 20 kt becoming southwest. Waves 2 to
4 ft.
.SUNDAY...Southwest winds 10 to 20 kt. Waves 3 to 5 ft.
.SUNDAY NIGHT...Southwest winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 3 to 5 ft.
.MONDAY...Southwest winds 10 to 20 kt becoming south. Waves 2 to
4 ft.
.MONDAY NIGHT...South winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 2 to 4 ft.
.TUESDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.TUESDAY NIGHT...South winds 15 to 25 kt becoming southwest 10 to
20 kt. Waves 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY...Northwest winds 10 to 20 kt increasing to 15 to
25 kt. Chance of showers. Waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft.
.THURSDAY...North winds 10 to 20 kt becoming west 10 to 15 kt.
Waves 3 to 5 ft subsiding to 2 to 4 ft.

$$

LMZ761-200315-
MAFOR 1922/
MICHIGAN NORTH 11440 11540 15530. Waves 3 to 6 feet tonight.
Waves 2 to 4 feet building to 3 to 5 feet Sunday.

MICHIGAN SOUTH 12420 15520. Waves 2 to 4 feet subsiding to 1 to 3
feet tonight. Waves 1 to 3 feet building to 2 to 4 feet Sunday.

$$


Patterson

Experimental modernized open lake forecast is available online at
weather.gov/mkx/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes