Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 270746
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
246 AM CDT MON JUL 27 2015

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 OVER THE CENTRAL GREAT
LAKES WILL SLOWLY MOVE EAST TO NEW ENGLAND BY TUESDAY. LOW PRESSURE
OF 29.5 INCHES OVER WYOMING AND MONTANA WILL MOVE NORTHEAST ACROSS
MANITOBA TUESDAY...AND THEN TO HUDSON BAY WEDNESDAY AS IT DEEPENS
TO 29.1 INCHES. A TRAILING COLD FRONT FROM THIS LOW WILL SWEEP
ACROSS THE LAKE WEDNESDAY. HIGH PRESSURE OF 30.1 INCHES OVER THE
CENTRAL PLAINS WEDNESDAY WILL BUILD EAST INTO THE WESTERN LAKES ON
THURSDAY.

LMZ261-362-364-366-563-565-567-868-271400-
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 MON JUL 27 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTHWEST WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
.TONIGHT...SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTH. WAVES 1 TO
2 FT.
.TUESDAY...SOUTH WINDS 5 TO 10 KT INCREASING TO 10 TO 20 KT.
WAVES 1 TO 3 FT.
.TUESDAY NIGHT...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25
KT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN
SHOWERS AND THUNDERSTORMS LIKELY OVERNIGHT. WAVES 2 TO 4 FT.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20
KT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING. WAVES 3
TO 5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.THURSDAY...WEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 1 TO 3 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-271400-
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 MON JUL 27 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...EAST WINDS AROUND 10 KT BECOMING NORTHEAST. WAVES 1 TO 2
FT.
.TONIGHT...NORTHEAST WINDS AROUND 10 KT BECOMING SOUTHEAST. WAVES
1 TO 2 FT.
.TUESDAY...SOUTHEAST WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
WAVES 1 TO 2 FT.
.TUESDAY NIGHT...SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT BUILDING TO 2 TO 4 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST. CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE MORNING. WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
.THURSDAY...WEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 1 TO 3 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.

$$

LMZ761-271400-
MAFOR 2709/
MICHIGAN NORTH 15500 12400. WAVES 1 TO 2 FT.

MICHIGAN SOUTH 12200 13110 12210 11310. WAVES 1 TO 2 FT.

$$



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