997
FZUS63 KMKX 071358
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
858 AM CDT Tue May 7 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...

Breezy east to southeast winds will prevail over the open waters
today as a 29.1 inch low pressure lingers over the northern Great
Plains. Periods of showers and embedded thunderstorms will be
possible from late this morning through this evening. A few of
these storms could be strong with gusty winds and hail,
particularly later this afternoon and early this evening. Winds
will turn out of the northeast over the lake on Wednesday
afternoon and evening as a second area of 29.5 inch low pressure
passes south and southeast of the open waters. Additional periods
of showers and thunderstorms are possible from Wednesday evening
through Thursday, with conditions drying out Thursday night.
Northerly winds will persist through Friday morning, prior to
turning out of the southwest on Friday afternoon as a 29.7 inch
low pressure moves across Ontario. Gales are not anticipated
through the duration of the period.

LMZ261-362-364-366-563-565-567-868-072115-
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-
858 AM CDT Tue May 7 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...East winds 10 to 20 kt increasing to 15 to
25 kt. Chance of rain showers through mid morning, then rain
showers and slight chance of thunderstorms this afternoon. Waves
3 to 5 ft.
.TONIGHT...East winds 15 to 25 kt veering to southwest 10 to
20 kt. Rain showers likely with a chance of thunderstorms in the
evening, then chance of rain showers and thunderstorms overnight.
Waves 2 to 4 ft.
.WEDNESDAY...West winds 10 to 20 kt veering to north. Chance of
rain showers in the morning. Waves 2 to 4 ft subsiding to 1 to
3 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. Chance of
rain showers. Waves 4 to 6 ft occasionally to 8 ft building to
4 to 7 ft occasionally to 9 ft.
.THURSDAY NIGHT...North winds 10 to 20 kt. Waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft.
.FRIDAY...North winds 10 to 20 kt becoming west. Waves 2 to 4 ft.
.SATURDAY...West winds 10 to 15 kt becoming north 10 to 20 kt.
Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-072115-
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-
858 AM CDT Tue May 7 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Southeast winds 15 to 25 kt. Chance of showers
and slight chance of thunderstorms through mid morning, then
chance of showers and thunderstorms this afternoon. Waves 4 to
6 ft occasionally to 8 ft.
.TONIGHT...Southwest winds 10 to 20 kt diminishing to 10 to
15 kt. Slight chance of rain showers and thunderstorms in the
evening. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.WEDNESDAY...Southwest winds 10 to 15 kt backing to southeast
10 to 20 kt. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...Northeast winds 10 to 20 kt. Chance of rain
showers in the evening, then rain showers likely overnight. Waves
2 to 4 ft building to 3 to 5 ft.
.THURSDAY...North winds 15 to 25 kt. Rain showers likely in the
morning, then chance of rain showers in the afternoon. Waves 4 to
6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to
10 ft.
.THURSDAY NIGHT...North winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.FRIDAY...North winds 10 to 20 kt becoming northwest. Waves 3 to
5 ft.
.SATURDAY...West winds 10 to 20 kt becoming northwest. Chance of
showers. Waves 1 to 3 ft.

$$

LMZ761-072115-
MAFOR 0716/
MICHIGAN NORTH 13236 11336 11420 11520 11526 11626. A chance of
thunderstorms tonight. Waves 2 to 4 feet this afternoon. Waves 2
to 4 feet subsiding to 1 to 3 feet tonight. Waves 1 to 3 feet
Wednesday morning.

MICHIGAN SOUTH 11336 11330 11420 14510 11510. A chance of
thunderstorms this afternoon. Waves 3 to 5 feet this afternoon.
Waves 2 to 4 feet subsiding to 1 to 3 feet tonight. Waves 2 feet
or less Wednesday morning.

$$


Patterson

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

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