Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
783
FZUS63 KLOT 140751
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
251 AM CDT Sat Jul 14 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...A trough of low pressure averaging 30.0 inches will
weaken over the lake today. A 29.8 inch trough and associated cold
front will move across the Dakotas through tonight and the lake
Monday. A 30.1 inch high will build over the Northern Plains
Monday night and then over the lake Tuesday night and Wednesday.

LMZ261-362-364-366-563-565-567-868-141515-
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-
251 AM CDT Sat Jul 14 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY THROUGH SUNDAY...Variable winds less than 10 kt. Waves
less than 1 ft.
.SUNDAY NIGHT...Variable winds less than 10 kt becoming
southwest around 10 kt. Chance of showers and thunderstorms
overnight. Waves 1 ft or less.
.MONDAY...Northwest winds 10 to 15 kt becoming west. Waves 1 ft
or less.
.MONDAY NIGHT...North winds 15 to 25 kt. Waves 1 to 3 ft building
to 2 to 4 ft.
.TUESDAY...North winds 10 to 20 kt becoming northwest. Waves 2 to
4 ft.
.WEDNESDAY...West winds 10 to 15 kt becoming southwest. Waves
1 ft or less.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-141515-
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-
251 AM CDT Sat Jul 14 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...South winds less than 10 kt becoming variable this
afternoon. Chance of showers and thunderstorms this morning, then
scattered showers and thunderstorms this afternoon. Waves 1 ft or
less.
.TONIGHT...Variable winds less than 10 kt becoming south late.
Isolated showers and thunderstorms in the evening. Waves 1 ft or
less.
.SUNDAY...Southeast winds 5 to 10 kt becoming east. Waves 1 ft or
less.
.SUNDAY NIGHT...Southeast winds 10 to 15 kt veering to southwest.
Chance of showers and thunderstorms overnight. Waves 1 ft or
less.
.MONDAY...Northwest winds 10 to 15 kt. Chance of showers and
thunderstorms in the morning. Waves 1 to 2 ft.
.MONDAY NIGHT...Northwest winds 15 to 25 kt becoming north. Waves
1 to 3 ft building to 3 to 5 ft.
.TUESDAY...North winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt becoming east. Waves
1 to 3 ft.

$$

LMZ761-141515-
MAFOR 1409/
MICHIGAN NORTH 16900. Waves less than 1 ft.

MICHIGAN SOUTH 12400 15900. Chance of showers and thunderstorms,
especially this afternoon. Waves 1 ft or less.

$$

- Izzi

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

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



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.