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000
FZUS63 KLOT 201351
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
851 AM CDT Fri Jul 20 2018

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...Low pressure of 29.6 inches is over Southern
Wisconsin. This low will move across the southern third of Lake
Michigan tonight, then slowly move southeast to the upper Ohio
Valley through the weekend. A high pressure ridge averaging 30.1
inches will extend over the northern Great Plains this evening
and slowly shift over the Upper Midwest through the weekend.

LMZ261-362-364-366-563-565-202130-
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-
851 AM CDT Fri Jul 20 2018

TWO RIVERS WI TO MANISTEE MI NORTH...

.REST OF TODAY...Southeast winds 15 to 25 kt becoming east.
Chance of showers and slight chance of thunderstorms this morning,
then showers likely with a chance of thunderstorms this
afternoon. Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.TONIGHT...East winds 15 to 25 kt becoming northeast 10 to 20 kt.
Chance of showers and slight chance of thunderstorms. Waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.SATURDAY...Northeast winds 10 to 20 kt increasing to 15 to
25 kt. Chance of showers. Waves 3 to 5 ft.
.SATURDAY NIGHT...Northeast winds 15 to 25 kt diminishing to
10 to 20 kt. Chance of showers in the evening. Waves 4 to 6 ft
occasionally to 8 ft.
.SUNDAY...Northeast winds 10 to 20 kt. Waves 3 to 5 ft.
.SUNDAY NIGHT...North winds 10 to 15 kt. Waves 2 to 4 ft.
.MONDAY...North winds 5 to 10 kt. Waves 1 to 2 ft.
.TUESDAY...North winds 5 to 10 kt backing to west. Waves 1 to 2 ft.

$$

LMZ567-669-671-673-868-870-872-874-202130-
Lake Michigan from Two Rivers to Sheboygan WI 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 Pentwater to Manistee MI 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-
851 AM CDT Fri Jul 20 2018

TWO RIVERS WI TO MANISTEE MI SOUTH TO WIND POINT WI TO HOLLAND
MI...

.REST OF TODAY...Southeast winds 15 to 25 kt diminishing to 10 to
20 kt late in the afternoon. Chance of showers and slight chance
of thunderstorms this morning, then showers likely with a chance
of thunderstorms this afternoon. Waves 6 to 9 ft occasionally to
12 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.TONIGHT...East winds 10 to 20 kt backing to northeast. Chance of
waterspouts. Showers likely with a chance of thunderstorms. Waves
3 to 5 ft subsiding to 2 to 4 ft.
.SATURDAY...Northeast winds 10 to 20 kt becoming north 15 to
25 kt. Chance of waterspouts. Showers likely in the morning, then
chance of showers in the afternoon. Waves 3 to 5 ft.
.SATURDAY NIGHT...Northeast winds 15 to 25 kt diminishing to
10 to 20 kt. Chance of waterspouts. Chance of showers. Waves 3 to
5 ft.
.SUNDAY...Northeast winds 10 to 20 kt becoming north. Waves 3 to
5 ft.
.SUNDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 3 to 5 ft.
.MONDAY...North winds 10 to 15 kt. Waves 1 to 3 ft.
.TUESDAY...North winds 5 to 10 kt. Waves 1 to 2 ft.

$$

LMZ080-675-777-779-876-878-202130-
Lake Michigan from Michigan City IN to St. Joseph MI 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-
851 AM CDT Fri Jul 20 2018

WIND POINT WI TO HOLLAND MI SOUTH...

.REST OF TODAY...South winds to 30 kt becoming southwest 15 to
25 kt. Showers likely with a chance of thunderstorms. Waves 5 to
8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft.
.TONIGHT...Southwest winds 10 to 20 kt becoming west. Chance of
waterspouts. Showers likely with a chance of thunderstorms. Waves
3 to 5 ft subsiding to 2 to 4 ft.
.SATURDAY...Northwest winds 10 to 20 kt becoming north. Chance of
waterspouts. Showers likely in the morning, then chance of
showers in the afternoon. Waves 3 to 5 ft.
.SATURDAY NIGHT...Northeast winds 15 to 25 kt diminishing to
10 to 20 kt. Chance of waterspouts. Chance of showers. Waves 3 to
5 ft.
.SUNDAY...Northeast winds 10 to 20 kt. Waves 3 to 5 ft.
.SUNDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 3 to 5 ft.
.MONDAY...North winds 10 to 15 kt. Waves 1 to 3 ft.
.TUESDAY...North winds 5 to 10 kt. Waves 1 to 2 ft.

$$
LMZ761-202130-
MAFOR 2015/
MICHIGAN NORTH 11330 12236 11239 11220 12120 11126. Chance of
showers, then chance of thunderstorms late this morning. Chance of
thunderstorms late, then chance of showers late this evening.
Chance of showers Saturday morning. Waves 6 to 9 ft occasionally
to 12 ft subsiding to 4 to 6 ft occasionally to 8 ft this
afternoon. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft tonight. Waves 3 to 5 ft Saturday morning.

MICHIGAN CENTRAL 11330 12326 13226 12126. Chance of showers this
morning and chance of thunderstorms through tonight. Waves 6 to 9
ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to 8
ft this afternoon. Waves 3 to 5 ft subsiding to 2 to 4 ft
tonight. Waves 3 to 5 ft Saturday morning.

MICHIGAN SOUTH 11446 11436 11336 11526 13626 11726. Chance of
waterspouts tonight and Saturday morning. Chance of thunderstorms
through tonight. Waves 5 to 8 ft occasionally to 10 ft subsiding
to 4 to 6 ft occasionally to 8 ft this afternoon. Waves 3 to 5 ft
subsiding to 2 to 4 ft tonight. Waves 3 to 5 ft Saturday morning.


$$


JEE

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

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



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