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000
FZUS63 KMKX 090747
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
247 AM 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...

An area of low pressure around 29.8 inches over southwestern
Ontario continues to weaken as weak high pressure around 30.0
inches in the central Great Plains noses into the area, leading to
light winds tonight. Winds shift southwesterly today as a weak
cold front lifts across the lake. Weak high pressure will then
pass to the south and east of Lake Michigan for Wednesday,
supporting a continuation of light southerly winds. Strengthening
low pressure is then expected to track from the Lower Mississippi
Valley into the Lower Great Lakes from Wednesday night through
Thursday night. The potential continues to increase for northerly
gales over Lake Michigan late Thursday into Friday.

LMZ261-362-364-366-563-565-567-868-091530-
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-
247 AM CDT Tue Apr 9 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Southeast winds 10 to 15 kt veering to southwest 10 to
20 kt. Slight chance of rain showers this morning. Waves 1 to
3 ft.
.TONIGHT...Southwest winds 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. 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 1 to 3 ft building to 3 to 5 ft.
.THURSDAY NIGHT...North gales to 35 kt becoming northwest gales
to 45 kt. Rain showers. Waves 4 to 6 ft occasionally to 8 ft
building to 5 to 8 ft occasionally to 10 ft.
.FRIDAY...Northwest gales to 45 kt. Chance of rain showers. Waves
5 to 8 ft occasionally to 10 ft.
.SATURDAY...West winds 15 to 25 kt becoming southwest 10 to
20 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-091530-
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-
247 AM CDT Tue Apr 9 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Southwest winds 10 to 20 kt. Waves 2 to 4 ft.
.TONIGHT...Southwest winds 5 to 10 kt. Waves 1 to 3 ft.
.WEDNESDAY...South winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 3 ft.
.WEDNESDAY NIGHT...East winds 10 to 15 kt becoming northeast
10 to 20 kt. Chance of rain showers in the evening, then rain
showers likely overnight. Waves 1 to 2 ft.
.THURSDAY...Northeast winds to 30 kt becoming north. Rain
showers. Waves 2 to 4 ft building to 5 to 8 ft occasionally to
10 ft.
.THURSDAY NIGHT...Northwest gales to 35 kt increasing to gales to
45 kt. Rain showers. Waves 6 to 9 ft occasionally to 12 ft.
.FRIDAY...Northwest gales to 45 kt diminishing to gales to 40 kt.
Chance of rain showers. Waves 6 to 9 ft occasionally to 12 ft.
.SATURDAY...West winds 10 to 20 kt becoming south. Waves 3 to
5 ft subsiding to 2 to 4 ft.

$$

LMZ761-091530-
MAFOR 0910/
MICHIGAN NORTH 11310 11410 11620 11520 14510. A chance of rain
showers early this morning. Waves 1 to 3 feet today. Waves 2 feet
or less tonight.

MICHIGAN SOUTH 12520 11620 11520 11510 11600 12500. Waves 1 to 3
feet today. Waves 2 feet or less tonight.

$$


MH

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

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