394
FZUS63 KMKX 210157
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
857 PM CDT Thu Jun 20 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...

Patchy dense fog lingers across southwest portions of Lake
Michigan into early Friday morning.

Expect light northerly winds over Lake Michigan overnight as high
pressure around 30.3 inches meanders over Lake Superior with a
stalled frontal boundary sitting across northern IL. Expecting
lighter winds to persist through Friday, but will increase and
shift southerly overnight Friday into Saturday as low pressure
around 29.6 inches develops across the Plains and lifts across the
Upper Midwest through the day Saturday. Then expecting a cold
front to push across the Lake later Saturday as the low lifts to
the northeast and winds turn more west- northwesterly for the end
of the weekend.

LMZ261-362-364-366-563-565-567-868-210915-
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-
857 PM CDT Thu Jun 20 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...North winds 10 to 15 kt becoming northeast
5 to 10 kt. Slight chance of showers through early evening, then
chance of showers overnight. Waves 1 to 3 ft subsiding to 1 to
2 ft.
.FRIDAY...Northeast winds 5 to 10 kt becoming north 10 to 15 kt.
Slight chance of showers in the morning, then chance of showers
in the afternoon. Waves 1 to 2 ft.
.FRIDAY NIGHT...Northeast winds 5 to 10 kt becoming east. Chance
of showers and thunderstorms. Waves 1 to 2 ft.
.SATURDAY...Southeast winds 10 to 20 kt becoming south 15 to
25 kt. Showers with a chance of thunderstorms. Waves 1 to 3 ft
building to 3 to 5 ft.
.SATURDAY NIGHT...Southwest winds 15 to 25 kt becoming west 10 to
20 kt. Showers with a chance of thunderstorms in the evening,
then chance of showers overnight. Waves 3 to 5 ft.
.SUNDAY...Northwest winds 15 to 25 kt becoming west. Waves 2 to
4 ft.
.SUNDAY NIGHT...Northwest winds 10 to 20 kt. Waves 1 to 3 ft.
.MONDAY...Northwest winds 10 to 15 kt backing to southwest 10 to
20 kt. Waves 1 to 2 ft.
.TUESDAY...South winds 10 to 20 kt becoming southwest 15 to
25 kt. Chance of showers. Waves 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-210915-
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-
857 PM CDT Thu Jun 20 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...North winds 10 to 15 kt diminishing to 5 to
10 kt. Slight chance of showers and thunderstorms through early
evening, then slight chance of showers overnight. Waves 2 to 4 ft
subsiding to 1 to 3 ft.
.FRIDAY...North winds 5 to 10 kt veering to northeast. Slight
chance of showers and thunderstorms. Waves 1 to 2 ft.
.FRIDAY NIGHT...Northeast winds 5 to 10 kt veering to south.
Waves 1 ft or less.
.SATURDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Chance of showers. Waves 1 to 3 ft building to 3 to 5 ft.
.SATURDAY NIGHT...Southwest winds 15 to 25 kt becoming west.
Showers with a chance of thunderstorms. Waves 3 to 5 ft.
.SUNDAY...West winds 10 to 20 kt becoming northwest. Waves 3 to
5 ft subsiding to 2 to 4 ft.
.SUNDAY NIGHT...Northwest winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 1 to 3 ft.
.MONDAY...Northwest winds 10 to 20 kt backing to southwest. Waves
1 to 3 ft.
.TUESDAY...South winds 10 to 20 kt becoming southwest. Chance of
showers. Waves 2 to 4 ft.

$$

LMZ761-210915-
MAFOR 2104/
MICHIGAN NORTH 12110 12100 11110 11810 11110 11100. A chance of
showers overnight and Friday afternoon. A chance of showers and
thunderstorms Friday evening. Waves 2 feet or less.

MICHIGAN SOUTH 13800 11700 11800 11110 12100. Waves 1 to 3 feet
overnight. Waves 2 feet or less Friday and Friday evening.

$$


Sheppard

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

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