615
FZUS63 KMKX 070144
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
844 PM CDT Mon May 6 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...

High pressure of 30.1 inches continues to influence the Great
Lakes region tonight, with light northeasterly to easterly winds.
Winds will increase and become southeasterly by Tuesday morning,
mainly over the southern half of the lake, as low pressure of
29.0 inches across the Great Plains lifts towards the Great
Lakes. Showers and thunderstorms are expected across the open
waters late Tuesday morning through Tuesday afternoon.

Winds turn southwesterly Tuesday night as the low pressure moves
eastward, before becoming northeasterly Wednesday afternoon as
another area of low pressure of 29.5 inches lifts into Illinois.
Additional showers and thunderstorms are possible Wednesday
afternoon into Thursday, mainly across the southern half of the
lake, as the second area of low pressure moves eastward, into the
Ohio Valley. High pressure then builds in briefly on Friday
before another low pushes eastward across southern Ontario this
weekend.

LMZ261-362-364-366-563-565-567-868-070915-
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-
844 PM CDT Mon May 6 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Northeast winds 10 to 15 kt becoming southeast
10 to 20 kt. Waves 2 to 4 ft.
.TUESDAY...East winds 15 to 25 kt. Rain showers likely with a
chance of thunderstorms in the afternoon. Waves 3 to 5 ft.
.TUESDAY NIGHT...East winds 15 to 25 kt becoming southeast late
in the evening, then becoming east 10 to 20 kt after midnight
veering to southwest 10 to 15 kt late. Chance of rain showers and
thunderstorms in the evening, then chance of rain showers
overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.WEDNESDAY...West winds 10 to 15 kt becoming northwest 10 to
20 kt. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...North winds 10 to 20 kt becoming northeast.
Chance of rain showers overnight. Waves 1 to 3 ft building to
3 to 5 ft.
.THURSDAY...Northeast winds 15 to 25 kt becoming north to 30 kt.
Chance of rain showers in the morning. Waves 4 to 7 ft
occasionally to 9 ft.
.THURSDAY NIGHT...North winds to 30 kt diminishing to 15 to
25 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft.
.FRIDAY...North winds 10 to 20 kt becoming west. Waves 2 to 4 ft.
.SATURDAY...West winds 10 to 20 kt becoming northwest. Waves 1 to
3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-070915-
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-
844 PM CDT Mon May 6 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Northeast winds 10 to 15 kt becoming southeast
10 to 20 kt. Waves 2 to 4 ft.
.TUESDAY...Southeast winds 15 to 25 kt diminishing to 10 to
20 kt. Rain showers and slight chance of thunderstorms in the
morning, then chance of rain showers and thunderstorms in the
afternoon. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft.
.TUESDAY NIGHT...South winds 10 to 15 kt becoming southwest.
Waves 2 to 4 ft subsiding to 1 to 3 ft.
.WEDNESDAY...Southwest winds 10 to 15 kt backing to southeast.
Waves 1 to 3 ft.
.WEDNESDAY NIGHT...Northeast winds 10 to 20 kt. Showers likely.
Waves 1 to 3 ft building to 3 to 5 ft.
.THURSDAY...Northeast winds to 30 kt becoming north. Showers
likely in the morning, then chance of showers in the afternoon.
Waves 4 to 7 ft occasionally to 9 ft building to 6 to 9 ft
occasionally to 12 ft.
.THURSDAY NIGHT...North winds to 30 kt diminishing to 15 to
25 kt. Waves 6 to 9 ft occasionally to 12 ft.
.FRIDAY...Northwest winds 10 to 20 kt. Waves 4 to 6 ft
occasionally to 8 ft.
.SATURDAY...West winds 10 to 20 kt becoming northwest. Chance of
showers. Waves 1 to 3 ft.

$$

LMZ761-070915-
MAFOR 0704/
MICHIGAN NORTH 11220 12320 11230 13236 11330. A chance of
thunderstorms Tuesday afternoon and Tuesday evening. Waves 1 to 3
feet overnight. Waves 2 to 4 feet Tuesday and Tuesday evening.

MICHIGAN SOUTH 11220 11320 12330 12336 11410 11510. A chance of
thunderstorms Tuesday afternoon. Waves 1 to 3 feet overnight.
Waves 3 to 5 feet subsiding to 2 to 4 feet Tuesday. Waves 1 to 3
feet Tuesday evening.

$$


MH

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

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