445
FZUS63 KMKX 250603
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
103 AM CDT Tue Jun 25 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...

Modest south winds will develop this evening, becoming breezy
late tonight into Tuesday morning as low pressure around 29.2
inches moves across northern Ontario. A line of thunderstorms
with very gusty winds will move across Lake Michigan late tonight
through early Tuesday morning. West winds on Tuesday will then
shift to northerly on Wednesday following the passage of a cold
front. High pressure around 30.0 inches will move across the lake
Wednesday night through Friday morning, bringing pleasant
weather.

LMZ261-362-251500-
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-
103 AM CDT Tue Jun 25 2024

ROCK ISLAND PASSAGE TO CHARLEVOIX MI NORTH...

.REST OF TONIGHT...South winds 10 to 20 kt increasing to 30 kt.
Showers likely with a chance of thunderstorms overnight. Waves
1 to 3 ft building to 4 to 6 ft occasionally to 8 ft.
.TUESDAY...South winds to 30 kt becoming southwest 15 to 25 kt
late in the morning, then diminishing to 10 to 20 kt early in the
afternoon becoming southwest 10 to 20 kt late. Chance of showers
and thunderstorms in the morning. Waves 4 to 6 ft occasionally to
8 ft subsiding to 3 to 5 ft.
.TUESDAY NIGHT...West winds 10 to 20 kt veering to north. Waves
2 to 4 ft subsiding to 1 to 3 ft.
.WEDNESDAY...North winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 2 to 4 ft.
.WEDNESDAY NIGHT...North winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 2 to 4 ft subsiding to 1 to 2 ft.
.THURSDAY...North winds 5 to 10 kt backing to southwest 10 to
15 kt. Waves 1 to 2 ft.
.THURSDAY NIGHT...South winds 5 to 10 kt becoming southeast 10 to
20 kt. Waves 1 to 2 ft.
.FRIDAY...South winds 15 to 25 kt. Chance of showers. Waves 3 to
5 ft building to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...Southwest winds 10 to 20 kt becoming west 15 to
25 kt. Waves 3 to 5 ft.

$$

LMZ364-366-563-565-567-868-251500-
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-
103 AM CDT Tue Jun 25 2024

ROCK ISLAND PASSAGE TO CHARLEVOIX MI SOUTH TO SHEBOYGAN WI TO
PENTWATER MI...

...SEVERE THUNDERSTORM WATCH 455 IN EFFECT UNTIL 8 AM CDT THIS
MORNING...

.REST OF TONIGHT...South winds 10 to 20 kt increasing to 30 kt.
Showers likely with a chance of thunderstorms overnight. Waves
1 to 3 ft building to 4 to 6 ft occasionally to 8 ft.
.TUESDAY...South winds to 30 kt becoming southwest 15 to 25 kt
late in the morning, then diminishing to 10 to 20 kt early in the
afternoon becoming southwest 10 to 20 kt late. Chance of showers
and thunderstorms in the morning. Waves 4 to 6 ft occasionally to
8 ft subsiding to 3 to 5 ft.
.TUESDAY NIGHT...West winds 10 to 20 kt veering to north. Waves
2 to 4 ft subsiding to 1 to 3 ft.
.WEDNESDAY...North winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 2 to 4 ft.
.WEDNESDAY NIGHT...North winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 2 to 4 ft subsiding to 1 to 2 ft.
.THURSDAY...North winds 5 to 10 kt backing to southwest 10 to
15 kt. Waves 1 to 2 ft.
.THURSDAY NIGHT...South winds 5 to 10 kt becoming southeast 10 to
20 kt. Waves 1 to 2 ft.
.FRIDAY...South winds 15 to 25 kt. Chance of showers. Waves 3 to
5 ft building to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...Southwest winds 10 to 20 kt becoming west 15 to
25 kt. Waves 3 to 5 ft.

$$

LMZ669-671-870-872-874-251500-
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 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-
103 AM CDT Tue Jun 25 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH TO NORTH POINT LIGHT WI TO
GRAND HAVEN MI...

...SEVERE THUNDERSTORM WATCH 455 IN EFFECT UNTIL 8 AM CDT THIS
MORNING...

.REST OF TONIGHT...Southeast winds 10 to 20 kt becoming south to
30 kt overnight. Showers likely with a chance of thunderstorms
overnight. Waves 1 to 2 ft building to 4 to 6 ft occasionally to
8 ft.
.TUESDAY...South winds to 30 kt becoming southwest late in the
morning, then becoming southwest to 30 kt early in the afternoon
becoming west 10 to 20 kt late. Chance of showers and
thunderstorms in the morning. Waves 4 to 7 ft occasionally to
9 ft subsiding to 3 to 5 ft.
.TUESDAY NIGHT...West winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.WEDNESDAY...North winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 2 to 4 ft building to 3 to 5 ft.
.WEDNESDAY NIGHT...North winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.THURSDAY...Northeast winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 3 ft.
.THURSDAY NIGHT...East winds 10 to 15 kt becoming southeast 10 to
20 kt. Waves 1 to 2 ft.
.FRIDAY...South winds 15 to 25 kt. Chance of showers. Waves 3 to
5 ft building to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...Southwest winds 10 to 20 kt becoming west. Chance of
showers. Waves 3 to 5 ft.

$$

LMZ080-673-675-777-779-876-878-251500-
Lake Michigan from Michigan City IN to St. Joseph MI 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 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-
103 AM CDT Tue Jun 25 2024

NORTH POINT LIGHT WI TO GRAND HAVEN MI SOUTH...

.REST OF TONIGHT...Southeast winds 10 to 20 kt becoming south to
30 kt overnight. Showers likely with a chance of thunderstorms
overnight. Waves 1 to 2 ft building to 4 to 6 ft occasionally to
8 ft.
.TUESDAY...South winds to 30 kt becoming southwest late in the
morning, then becoming southwest to 30 kt early in the afternoon
becoming west 10 to 20 kt late. Chance of showers and
thunderstorms in the morning. Waves 4 to 7 ft occasionally to
9 ft subsiding to 3 to 5 ft.
.TUESDAY NIGHT...West winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.WEDNESDAY...North winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 2 to 4 ft building to 3 to 5 ft.
.WEDNESDAY NIGHT...North winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.THURSDAY...Northeast winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 3 ft.
.THURSDAY NIGHT...East winds 10 to 15 kt becoming southeast 10 to
20 kt. Waves 1 to 2 ft.
.FRIDAY...South winds 15 to 25 kt. Chance of showers. Waves 3 to
5 ft building to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...Southwest winds 10 to 20 kt becoming west. Chance of
showers. Waves 3 to 5 ft.

$$
LMZ761-251500-
MAFOR 2510 AMD/
MICHIGAN NORTH...SEVERE THUNDERSTORM WATCH IN EFFECT...11440
13530 11620 11610 11720 11820. A chance of showers and
thunderstorms this morning. Waves 3 to 6 feet building to 4 to 7
feet, then subsiding to 3 to 6 feet today. Waves 2 to 4 feet
subsiding to 1 to 3 feet tonight.

MICHIGAN SOUTH...SEVERE THUNDERSTORM WATCH IN EFFECT...11440
11540 11530 11620 14610. A chance of showers and thunderstorms
this morning. Waves 3 to 6 feet building to 5 to 8 feet, then
subsiding to 3 to 5 feet today. Waves 2 to 4 feet subsiding to 1
to 3 feet tonight.

$$


WFO MKX

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

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