Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 222059
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
259 PM CST SUN JAN 22 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 HEIGHT OF THE HIGHEST 1/3 OF THE WAVES...ALONG
WITH THE AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES
WHICH WILL OCCASIONALLY BE ENCOUNTERED.

.SYNOPSIS...A STRONG AREA OF LOW OF 29.3 INCHES WILL TRACK
EASTWARD ACROSS THE LOWER MISSISSIPPI VALLEY AND DEEPEN TO 29.1
INCHES AS IT REACHES THE MID ATLANTIC COAST BY MONDAY. A WEAK
HIGH PRESSURE RIDGE AROUND 29.6 INCHES WILL MOVE QUICKLY OVER THE
LAKE TUESDAY. LOW PRESSURE AROUND 29.3 INCHES IS THEN EXPECTED TO
APPROACH SOUTHERN LAKE MICHIGAN LATE TUESDAY NIGHT.

LMZ261-362-364-366-563-565-567-868-230415-
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-
259 PM CST SUN JAN 22 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CST MONDAY...

.TONIGHT...VARIABLE WINDS 5 TO 10 KT BECOMING NORTH AND
INCREASING TO 10 TO 15 KT. AREAS OF DENSE FOG. SLIGHT CHANCE OF
RAIN OVERNIGHT. WAVES 2 FT OR LESS.
.MONDAY...NORTH WINDS 10 TO 20 KT. AREAS OF DENSE FOG IN THE
MORNING...THEN PATCHY FOG IN THE AFTERNOON. CHANCE OF RAIN. WAVES
1 TO 2 FT.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. CHANCE OF RAIN...LIGHT FREEZING RAIN LIKELY WITH A CHANCE
OF SNOW IN THE EVENING...THEN CHANCE OF RAIN...SNOW AND LIGHT
FREEZING RAIN OVERNIGHT. WAVES 1 TO 2 FT.
.TUESDAY...NORTH WINDS 10 TO 15 KT BECOMING NORTHWEST LESS THAN
10 KT IN THE AFTERNOON. CHANCE OF RAIN AND LIGHT FREEZING RAIN IN
THE MORNING. WAVES 1 TO 2 FT.
.TUESDAY NIGHT...EAST WINDS 10 TO 15 KT. CHANCE OF RAIN...SNOW
AND LIGHT FREEZING RAIN IN THE EVENING...THEN RAIN...SNOW LIKELY
WITH A CHANCE OF LIGHT FREEZING RAIN OVERNIGHT. WAVES 1 TO 2 FT.
.WEDNESDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST. RAIN...
SNOW LIKELY WITH A CHANCE OF LIGHT FREEZING RAIN IN THE MORNING...
THEN CHANCE OF SNOW AND RAIN IN THE AFTERNOON. WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO
10 TO 20 KT. CHANCE OF SNOW. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 15 TO 25 KT.
CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-230415-
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-
259 PM CST SUN JAN 22 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CST MONDAY...

.TONIGHT...NORTH WINDS 10 TO 15 KT INCREASING TO 15 TO 20 KT THIS
EVENING. AREAS OF DENSE FOG. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT LATE.
.MONDAY...NORTH WINDS 15 TO 20 KT. PATCHY DENSE FOG IN THE
MORNING...THEN PATCHY FOG IN THE AFTERNOON. SLIGHT CHANCE OF RAIN
IN THE MORNING...THEN CHANCE OF RAIN IN THE AFTERNOON. WAVES 3 TO
5 FT OCCASIONALLY TO 7 FT.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST. WAVES
2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KT BACKING TO SOUTH. WAVES
1 TO 2 FT.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH. RAIN
LIKELY. WAVES 1 TO 3 FT.
.WEDNESDAY...WEST WINDS 15 TO 25 KT. CHANCE OF RAIN IN THE
MORNING...THEN CHANCE OF RAIN AND SNOW IN THE AFTERNOON. WAVES
2 TO 4 FT.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW
AND RAIN. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KT BECOMING WEST. CHANCE OF
SNOW SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KT BECOMING WEST. CHANCE OF
SNOW SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.

$$

LMZ761-230415-
MAFOR 2222/
MICHIGAN NORTH 11904 11804 11104 13814 12820. CHANCE OF RAIN
MONDAY. WAVES 2 FT OR LESS.

MICHIGAN SOUTH 12814 13824 11820 19824 12820. CHANCE OF RAIN
EARLY MONDAY AFTERNOON. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT TONIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
MONDAY.

$$


KJB

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE (ALL LOWER CASE)

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)


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