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000
FZUS63 KMKX 112000
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
300 PM CDT Thu Apr 11 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...

A low pressure system over Ohio will track northeastward, deepening
to around 28.9 inches and passing Toronto Friday morning.
Northwesterly gales develop over the open waters late tonight (all
open waters included in Gale Warning), with gusts to around 40
kts. The strongest winds and waves will be towards the east side
of the lake, as well as the northern third of the lake.

Winds will gradually weaken later Friday night into the weekend
as the low tracks northeast into Quebec. A small ridge of high
pressure traverses Lake Michigan on Saturday, allowing gentle
winds (around 15 kts) to back from northwesterly to southerly. A
weak low pressure around 29.6 inches crosses the lake Sunday
morning, veering winds to the north (roughly 15 kts or less)
Sunday afternoon.

LMZ261-362-364-366-563-565-567-868-120330-
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-
300 PM CDT Thu Apr 11 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...

.TONIGHT...North winds 15 to 25 kt becoming northwest to 30 kt
after midnight, then increasing to gales to 35 kt late. Rain
showers this evening, then rain showers likely overnight. Waves
2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.
.FRIDAY...Northwest gales to 40 kt increasing to gales to 45 kt.
Chance of rain showers in the morning, then slight chance of rain
showers in the afternoon. Waves 6 to 9 ft occasionally to 12 ft
building to 8 to 12 ft occasionally to 16 ft.
.FRIDAY NIGHT...Northwest gales to 40 kt diminishing to 30 kt.
Waves 8 to 11 ft occasionally to 14 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.SATURDAY...Northwest winds to 30 kt becoming southwest 10 to
20 kt in the afternoon. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 2 to 4 ft.
.SATURDAY NIGHT...South winds 10 to 20 kt. Chance of rain showers
in the evening, then rain showers likely overnight. Waves 3 to
5 ft.
.SUNDAY...West winds 10 to 15 kt veering to north 10 to 20 kt.
Waves 3 to 5 ft.
.SUNDAY NIGHT...North winds 10 to 15 kt becoming northeast. Waves
1 to 3 ft.
.MONDAY...Southeast winds 10 to 15 kt. Waves 1 to 3 ft.
.TUESDAY...Southeast winds to 30 kt increasing to gales to 35 kt.
Rain showers. Waves 7 to 10 ft occasionally to 13 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-120330-
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-
300 PM CDT Thu Apr 11 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...

.TONIGHT...North winds to 30 kt becoming northwest gales to
35 kt. Chance of rain showers. Waves 4 to 7 ft occasionally to
9 ft building to 5 to 8 ft occasionally to 10 ft.
.FRIDAY...Northwest gales to 40 kt diminishing to gales to 35 kt.
Chance of rain showers in the morning. Waves 7 to 10 ft
occasionally to 13 ft building to 8 to 12 ft occasionally to
16 ft, then subsiding to 8 to 11 ft occasionally to 14 ft.
.FRIDAY NIGHT...Northwest winds to 30 kt. Waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 7 ft occasionally to
9 ft.
.SATURDAY...West winds 15 to 25 kt backing to south 10 to 20 kt.
Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.SATURDAY NIGHT...South winds 10 to 20 kt. Chance of rain
showers. Waves 3 to 5 ft.
.SUNDAY...Southwest winds 10 to 20 kt veering to north. Waves
3 to 5 ft.
.SUNDAY NIGHT...North winds 10 to 15 kt becoming northeast. Waves
2 to 4 ft subsiding to 1 to 2 ft.
.MONDAY...East winds 10 to 15 kt increasing to 10 to 20 kt. Waves
1 to 3 ft.
.TUESDAY...Southeast winds to 30 kt increasing to gales to 35 kt.
Showers. Waves 7 to 10 ft occasionally to 13 ft.

$$

LMZ761-120330-
MAFOR 1122/
MICHIGAN NORTH...GALE WARNING IN EFFECT...12836 11746 11756 12750
12760. Waves 1 to 3 feet building to 3 to 6 feet tonight. Waves 5
to 8 feet building to 8 to 11 feet Friday.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...11840 12740 11746
14750. Waves 3 to 6 feet building to 4 to 7 feet tonight. Waves 6
to 9 feet building to 9 to 12 feet, then subsiding to 7 to 10
feet Friday.

$$


Sheppard

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

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