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000
FZUS63 KMKX 091927
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
227 PM CDT Tue Apr 9 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...

Generally westerly winds prevail across the open waters in the wake
of a cold front early this afternoon. Winds will gradually shift out
of the southwest from tonight through Wednesday as a broad area of
29.8 inch low pressure forms along the US-Canadian border, though
gusts are expected to remain at and below 20 knots. A second,
stronger area of low pressure will develop over the southern Great
Plains on Wednesday, deepening to near 29.4 inches as it
approaches the Ohio River early Thursday morning. The approach of
the feature will result in a northeasterly wind shift across Lake
Michigan, with gusts between 20 and 30 knots anticipated by
Thursday afternoon. Readings will increase further Thursday night
into Friday as the surface low deepens to near 28.9 inches over
Lake Huron. Widespread gusts exceeding 30 knots are expected
during this time period, with embedded gales possible on Friday
morning, afternoon, and evening. Trends will continue to be
monitored over the coming forecasts, with headlines possible
should confidence continue to increase. Gusts will begin to
decrease late Friday night into Saturday morning.

LMZ261-362-364-366-563-565-567-868-100315-
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-
227 PM CDT Tue Apr 9 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Southwest winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 1 to 3 ft.
.WEDNESDAY...Southwest winds 10 to 15 kt becoming south. Waves
1 to 3 ft.
.WEDNESDAY NIGHT...South winds 10 to 15 kt backing to east 5 to
10 kt. Chance of rain showers overnight. Waves 1 to 3 ft.
.THURSDAY...Northeast winds 15 to 25 kt becoming north to 30 kt.
Rain showers likely in the morning, then rain showers in the
afternoon. Waves 2 to 4 ft building to 4 to 7 ft occasionally to
9 ft.
.THURSDAY NIGHT...North gales to 35 kt becoming northwest gales
to 45 kt overnight. Rain showers in the evening, then rain
showers likely overnight. Waves 6 to 9 ft occasionally to 12 ft
building to 8 to 12 ft occasionally to 16 ft.
.FRIDAY...Northwest gales to 45 kt. Chance of rain showers. Waves
10 to 14 ft occasionally to 18 ft subsiding to 8 to 11 ft
occasionally to 14 ft.
.FRIDAY NIGHT...Northwest gales to 35 kt diminishing to 30 kt.
Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.SATURDAY...West winds 15 to 25 kt becoming southwest 10 to
20 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.SUNDAY...South winds 10 to 20 kt becoming southwest. Waves 2 to
4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-100315-
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-
227 PM CDT Tue Apr 9 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Southwest winds 10 to 15 kt diminishing to 5 to 10 kt.
Waves 1 to 3 ft subsiding to 1 to 2 ft.
.WEDNESDAY...South winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 3 ft.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 kt becoming northeast
10 to 20 kt. Rain showers likely overnight. Waves 1 to 3 ft.
.THURSDAY...Northeast winds to 30 kt becoming north. Rain
showers. Waves 4 to 6 ft occasionally to 8 ft building to 6 to
9 ft occasionally to 12 ft.
.THURSDAY NIGHT...Northwest gales to 35 kt increasing to gales to
45 kt overnight. Rain showers. Waves 8 to 12 ft occasionally to
16 ft building to 10 to 14 ft occasionally to 18 ft.
.FRIDAY...Northwest gales to 45 kt diminishing to gales to 40 kt.
Chance of rain showers. Waves 12 to 16 ft occasionally to 21 ft.
.FRIDAY NIGHT...Northwest winds to 30 kt becoming west 15 to
25 kt. Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.SATURDAY...West winds 10 to 20 kt becoming south. Waves 3 to
5 ft.
.SUNDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 2 to 4 ft.

$$

LMZ761-100315-
MAFOR 0922/
MICHIGAN NORTH 11520 14510 11500 11510 11410. Waves 1 to 3 feet
tonight. Waves 2 feet or less Wednesday.

MICHIGAN SOUTH 11510 11600 12500 12400 12410. Waves 1 to 3 feet
tonight. Waves 2 feet or less Wednesday.

$$


Quigley

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

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