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
000
FZUS63 KLOT 280744
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
244 AM CDT Fri Jul 28 2017

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...High pressure of 30.1 inches is centered just north of
Lake Superior early this morning. The high will settle over
northern Lake Michigan Saturday then shift to the south end of the
Lake Sunday. Low pressure of 29.8 inches will move across
northern Manitoba Monday to James Bay Tuesday. A trailing cold
front will sag south across Lake Michigan through the day
Wednesday.

LMZ261-362-364-366-563-565-567-868-281515-
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-
244 AM CDT Fri Jul 28 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Northeast winds 15 to 25 kt. Waves 3 to 5 ft building to
4 to 6 ft occasionally to 8 ft.
.TONIGHT...Northeast winds 15 to 25 kt diminishing to around 10
kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.SATURDAY...North winds 10 to 15 kt becoming northwest 10 to
20 kt. Waves 1 to 3 ft.
.SATURDAY NIGHT...Northwest winds 10 to 20 kt becoming west 5 to
10 kt overnight. Waves 1 to 3 ft.
.SUNDAY...West winds 5 to 10 kt becoming southwest 10 to 15 kt.
Waves 1 ft or less.
.SUNDAY NIGHT...Southwest winds 10 to 15 kt becoming west. Waves
1 ft or less.
.MONDAY...West winds 5 to 10 kt becoming southwest. Waves 1 ft or
less.
.TUESDAY...Southwest winds 10 to 20 kt. Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-281515-
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-
244 AM CDT Fri Jul 28 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Northeast winds 15 to 25 kt becoming north to 30 kt.
Waves 4 to 7 ft occasionally to 9 ft.
.TONIGHT...Northeast winds 15 to 25 kt. Waves 4 to 7 ft
occasionally to 9 ft.
.SATURDAY...Northeast winds 15 to 25 kt becoming north. Waves
3 to 5 ft.
.SATURDAY NIGHT...North winds 10 to 20 kt becoming northeast
10 to 15 kt. Waves 2 to 4 ft.
.SUNDAY...North winds 5 to 10 kt increasing to 10 to 15 kt. Waves
1 to 3 ft.
.SUNDAY NIGHT...Northwest winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 1 to 2 ft.
.MONDAY...North winds 5 to 10 kt. Waves 1 ft or less.
.TUESDAY...West winds 10 to 15 kt becoming southwest 10 to 20 kt.
Waves 1 to 2 ft.

$$

LMZ761-281515-
MAFOR 2809/
MICHIGAN NORTH 15130 11120 11110. Waves 3 to 5 feet building to 4
to 6 feet occasionally to 8 feet today. Waves 4 to 6 feet
occasionally to 8 feet subsiding to 2 to 4 feet tonight.

MICHIGAN SOUTH 13130 12840 13130. Waves 4 to 7 feet occasionally
to 9 feet.

$$

BMD

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.