Great Lakes Forecast
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FZUS63 KMKX 122008
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
308 PM CDT Wed Jun 12 2019

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...

A broad area of low pressure of 29.9 inches over eastern Wisconsin
and Illinois will deepen to 29.7 inches over northern Indiana
this evening. The low will further strengthen to 29.6 inches as it
reaches southern Ontario early Thursday afternoon. Northerly
winds will pick up behind the low late this afternoon and evening
and continue into Thursday. Northerly gales are expected across
the southern half of the lake. These winds will build high waves
in the south.

Winds will ease later Thursday into Thursday night as high
pressure passes by to the south. Southerly winds will then pick
back up later Friday into Friday night ahead of another
approaching low.

LMZ261-362-364-366-563-565-567-868-130315-
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-
308 PM CDT Wed Jun 12 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...North winds 10 to 20 kt increasing to 30 kt. Numerous
showers with isolated thunderstorms this evening, then scattered
showers overnight. Waves 1 to 3 ft building to 4 to 6 ft
occasionally to 8 ft.
.THURSDAY...North winds to 30 kt diminishing to 15 to 25 kt.
Isolated showers in the morning. Waves 4 to 6 ft occasionally to
8 ft.
.THURSDAY NIGHT...Northwest winds 10 to 20 kt becoming west.
Waves 2 to 4 ft subsiding to 1 to 3 ft.
.FRIDAY...Southwest winds 10 to 20 kt increasing to gales to
35 kt in the afternoon. Chance of showers. Waves 2 to 4 ft
building to 4 to 6 ft occasionally to 8 ft.
.FRIDAY NIGHT...Southwest winds to 30 kt diminishing to 15 to
25 kt. Showers likely. Waves 4 to 7 ft occasionally to 9 ft.
.SATURDAY...Southwest winds 15 to 25 kt becoming south 10 to
20 kt. Showers likely. Waves 4 to 6 ft occasionally to 8 ft.
.SATURDAY NIGHT...Southeast winds 10 to 20 kt becoming northeast
10 to 15 kt. Chance of showers and thunderstorms. Waves 2 to 4 ft
subsiding to 1 to 3 ft.
.SUNDAY...North winds 10 to 20 kt. Waves 1 to 2 ft.
.MONDAY...North winds 5 to 10 kt becoming west. Waves 1 ft or
less.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-130315-
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-
308 PM CDT Wed Jun 12 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT FROM 1 AM CDT THURSDAY THROUGH THURSDAY
AFTERNOON...

.TONIGHT...North winds 10 to 15 kt increasing to gales to 35 kt.
Periods of showers with isolated thunderstorms this evening, then
periods of showers overnight. Waves 1 to 2 ft building to 6 to
9 ft occasionally to 12 ft.
.THURSDAY...North gales to 35 kt becoming northwest. Scattered
showers in the morning, then isolated showers in the afternoon.
Waves 7 to 10 ft occasionally to 13 ft.
.THURSDAY NIGHT...Northwest winds 15 to 25 kt becoming west 10 to
20 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 2 to
4 ft.
.FRIDAY...Southwest winds 10 to 20 kt increasing to 30 kt in the
afternoon. Waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft.
.FRIDAY NIGHT...Southwest winds to 30 kt. Chance of showers.
Waves 4 to 7 ft occasionally to 9 ft.
.SATURDAY...Southwest winds 15 to 25 kt diminishing to 10 to
20 kt. Showers likely with a chance of thunderstorms. Waves 4 to
6 ft occasionally to 8 ft.
.SATURDAY NIGHT...South winds 10 to 20 kt becoming southwest
10 to 15 kt. Showers likely with a chance of thunderstorms. Waves
2 to 4 ft subsiding to 1 to 3 ft.
.SUNDAY...Northwest winds 10 to 20 kt becoming north. Waves 1 to
3 ft.
.MONDAY...North winds 5 to 10 kt increasing to 10 to 15 kt. Waves
1 to 2 ft.

$$

LMZ761-130315-
MAFOR 1221/
MICHIGAN NORTH 11816 11836 12846 14840. Scattered showers
Thursday morning. Waves 1 to 3 ft building to 4 to 6 ft
occasionally to 8 ft tonight. Waves 4 to 7 ft occasionally to 9
ft Thursday.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...11616 13846 11856
13850. Scattered showers Thursday morning. Waves 1 to 3 ft
building to 6 to 9 ft occasionally to 12 ft tonight. Waves 8 to
11 ft occasionally to 14 ft Thursday.

$$


Gehring

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

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


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