Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 030746
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
246 AM CDT TUE MAY 3 2016

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...HIGH PRESSURE OF 30.0 INCHES LIES OVER LAKE MICHIGAN
EARLY THIS MORNING AND WILL DRIFT TO THE OHIO VALLEY THIS EVENING.
LOW PRESSURE OF 29.6 INCHES LIES OVER HUDSON BAY THIS MORNING
AND WILL MOVE SOUTH ACROSS MICHIGAN TONIGHT WITH A TRAILING COLD
FRONT PUSHING ACROSS LAKE MICHIGAN. THE LOW WILL MERGE WITH
ANOTHER LOW OFF THE MID ATLANTIC COAST WEDNESDAY NIGHT. A RIDGE OF
HIGH PRESSURE AVERAGING 30.0 INCHES WILL BUILD ACROSS LAKE
MICHIGAN THURSDAY. LOW PRESSURE OF 29.7 INCHES WILL MOVE ACROSS
SOUTHERN MANITOBA THURSDAY NIGHT AND INTO QUEBEC BY SATURDAY WITH
A TRAILING COLD FRONT PUSHING SOUTH ACROSS LAKE MICHIGAN.

LMZ261-362-364-366-563-565-567-868-031530-
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-
246 AM CDT TUE MAY 3 2016

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTHWEST WINDS AROUND 10 KT INCREASING TO 15 TO 25 KT.
CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON. WAVES 1 TO 3
FT BUILDING TO 2 TO 4 FT.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING NORTHWEST LATE IN
THE EVENING...THEN BECOMING NORTH TO 30 KT LATE. SHOWERS WITH A
CHANCE OF THUNDERSTORMS IN THE EVENING...THEN CHANCE OF SHOWERS
OVERNIGHT. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7
FT.
.WEDNESDAY...NORTH WINDS TO 30 KT. WAVES 5 TO 8 FT OCCASIONALLY
TO 10 FT.
.WEDNESDAY NIGHT...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY...NORTH WINDS 10 TO 20 KT BACKING TO WEST 10 TO 15 KT.
WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.FRIDAY...SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
WAVES 1 TO 2 FT.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KT BECOMING NORTH. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-031530-
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-
246 AM CDT TUE MAY 3 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...WEST WINDS AROUND 10 KT BECOMING SOUTHWEST 10 TO 20 KT BY
EARLY THIS AFTERNOON. WAVES 2 TO 4 FT.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KT VEERING TO NORTHWEST 15 TO
25 KT. SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE EVENING...
THEN CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 2 TO
4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY...NORTH WINDS TO 30 KT. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT.
.WEDNESDAY NIGHT...NORTH WINDS TO 30 KT. WAVES 6 TO 9 FT
OCCASIONALLY TO 11 FT.
.THURSDAY...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.THURSDAY NIGHT...WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST. WAVES
1 TO 3 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.SATURDAY...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FT.

$$

LMZ761-031530-
MAFOR 0309/
MICHIGAN NORTH 11500 11510 11520 12536 11526 19720 11720 11830.
CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON. CHANCE OF
THUNDERSTORMS THIS EVENING. CHANCE OF SHOWERS OVERNIGHT. WAVES 1
TO 3 FT BUILDING TO 2 TO 4 FT TODAY...THEN TO 3 TO 5 FT
OCCASIONALLY TO 7 FT TONIGHT.

MICHIGAN SOUTH 11600 12510 12520 12526 11526 19730. CHANCE OF
THUNDERSTORMS TONIGHT. WAVES 2 TO 4 FT TODAY BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT TONIGHT.

$$

BMD



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