Great Lakes Forecast
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FZUS63 KMKX 110154
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
854 PM CDT Mon May 10 2021

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...

Weak low pressure around 30.0 inches over east central Iowa into
northwest Illinois will move southward tonight and weaken.
Meanwhile high pressure of 30.4 inches currently over northern
Minnesota will slowly push southward tonight.

High pressure will linger across the region Tuesday into Friday.
Winds will be light and variable under the high Tuesday into the
rest of the week.

&&

LMZ261-362-364-366-563-565-567-868-111300-
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-
854 PM CDT Mon May 10 2021

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Northwest winds 10 to 20 kt. Waves 2 to 4 ft.
.TUESDAY...Northwest winds 10 to 20 kt. Waves 2 to 4 ft subsiding
to 1 to 3 ft.
.TUESDAY NIGHT...West winds 10 to 15 kt becoming northwest 5 to
10 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft.
.WEDNESDAY...West winds 5 to 10 kt becoming southwest 10 to
15 kt. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 kt diminishing to
5 to 10 kt. Waves 1 to 2 ft.
.THURSDAY...Southwest winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 2 ft.
.THURSDAY NIGHT...Southwest winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 1 to 2 ft.
.FRIDAY...Southwest winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 3 ft.
.SATURDAY...Southwest winds 5 to 10 kt. Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-111300-
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-
854 PM CDT Mon May 10 2021

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...North winds 10 to 15 kt. Waves 1 to 3 ft.
.TUESDAY...North winds 10 to 20 kt. Waves 2 to 4 ft.
.TUESDAY NIGHT...Northwest winds 10 to 20 kt becoming north 5 to
10 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.WEDNESDAY...North winds 5 to 10 kt. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 kt becoming west.
Waves 1 ft or less.
.THURSDAY...Southwest winds 5 to 10 kt becoming south. Waves 1 ft
or less.
.THURSDAY NIGHT...South winds 5 to 10 kt becoming southwest.
Waves 1 to 2 ft.
.FRIDAY...Southwest winds 5 to 10 kt becoming south. Waves 1 to
2 ft.
.SATURDAY...South winds 5 to 10 kt. Waves 1 to 2 ft.

$$

LMZ761-111300-
MAFOR 1103/
MICHIGAN NORTH 14720 11720 11820 11720 11610. Waves 1 to 3 feet
building to 2 to 4 feet overnight. Waves 2 to 4 feet subsiding to
1 to 3 feet Tuesday. Waves 2 feet or less Tuesday evening.

MICHIGAN SOUTH 13810 14820 11720. Waves 1 to 3 feet overnight.
Waves 1 to 3 feet building to 2 to 4 feet Tuesday. Waves 2 to 4
feet subsiding to 1 to 3 feet Tuesday evening.

$$


Stumpf

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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