670
FZUS63 KMKX 150743
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
243 AM CDT Mon Jul 15 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...

Ongoing rain showers will push east of the southern half of the
open waters through daybreak, giving way to a break in shower and
thunderstorm activity through late morning and early afternoon.
Pockets are expected to develop through sunrise, particularly
across the northern half of the open waters. Don`t currently
anticipate widespread visibility reductions below one mile, so
have thus held off on any marine dense fog advisories in the
overnight forecast update. Will nevertheless monitor trends
through sunrise and make adjustments if necessary. Additional
shower and thunderstorm chances enter the forecast late this
afternoon and evening as a cold front crosses the lake. A few
storms could be strong to severe with large hail and gusty winds,
particularly over the southern third of the open waters. Winds
will turn out of the northwest behind the front on Tuesday, with
gusts between 15-20 knots possible through sunset.

LMZ261-362-364-366-563-565-567-868-151515-
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-
243 AM CDT Mon Jul 15 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...West winds 5 to 10 kt becoming southwest late this
morning, then increasing to 10 to 20 kt early this afternoon
becoming south late. Patchy fog this morning. Waves 1 to 2 ft.
.TONIGHT...South winds 10 to 20 kt veering to northwest. Chance
of showers and thunderstorms. Waves 1 to 3 ft.
.TUESDAY...Northwest winds 10 to 20 kt backing to southwest.
Waves 1 to 3 ft.
.TUESDAY NIGHT...West winds 10 to 20 kt becoming northwest 10 to
15 kt. Waves 1 to 2 ft.
.WEDNESDAY...Northwest winds 10 to 20 kt becoming north 15 to
25 kt. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...North winds 10 to 20 kt. Waves 1 to 3 ft.
.THURSDAY...North winds 10 to 15 kt becoming northwest 10 to
20 kt. Waves 1 to 3 ft.
.FRIDAY...Southwest winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-151515-
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-
243 AM CDT Mon Jul 15 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt.
Waves 1 to 3 ft.
.TONIGHT...South winds 10 to 20 kt becoming west. Showers likely
with a chance of thunderstorms in the evening, then chance of
thunderstorms and slight chance of showers overnight. Waves 1 to
3 ft.
.TUESDAY...West winds 10 to 20 kt becoming north. Waves 2 to
4 ft.
.TUESDAY NIGHT...Northwest winds 10 to 15 kt. Waves 1 to 3 ft.
.WEDNESDAY...North winds 10 to 20 kt. Waves 1 to 3 ft building to
2 to 4 ft.
.WEDNESDAY NIGHT...North winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 2 to 4 ft.
.THURSDAY...North winds 10 to 20 kt. Waves 1 to 3 ft.
.FRIDAY...Northwest winds 5 to 10 kt backing to south 10 to
15 kt. Waves 1 to 2 ft.

$$

LMZ761-151515-
MAFOR 1510/
MICHIGAN NORTH 11600 11500 11510 12420 12520 11710. A chance of
showers and thunderstorms tonight. Waves 2 feet or less.

MICHIGAN SOUTH 13510 12420 12526 11520. A chance of thunderstorms
tonight. Waves 2 feet or less today. Waves 1 to 3 feet tonight.

$$


Quigley

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

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