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NWS Forecast

FZUS63 KLOT 311346
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
846 AM CDT FRI JUL 31 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
STRONG LOW PRESSURE OF 29.2 INCHES WILL REMAIN NEARLY
STATIONARY OVER HUDSON BAY THROUGH SATURDAY NIGHT AS IT SLOWLY
WEAKENS. HIGH PRESSURE OF 30.2 INCHES OVER THE CENTRAL PLAINS WILL
SLOWLY SPREAD EAST ACROSS THE OHIO AND TENNESSEE VALLEYS TODAY. A
TROUGH OF LOW PRESSURE AVERAGING 29.8 INCHES AND AN ASSOCIATED
WEAK COLD FRONT WILL MOVE ACROSS THE LAKE THROUGH TONIGHT.

LMZ261-362-364-366-563-565-567-868-312215-
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-
846 AM CDT FRI JUL 31 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

REST OF TODAY
WEST WINDS 10 TO 20 KT. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS THIS AFTERNOON. WAVES 2 TO 4 FT.

TONIGHT
NORTHWEST WINDS 10 TO 20 KT. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 2 TO 4 FT.

SATURDAY
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO
15 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.

SATURDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 10 TO
15 KT. WAVES 1 TO 2 FT.

SUNDAY
SOUTHWEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 3 FT.

SUNDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO
15 KT. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.

MONDAY
NORTHWEST WINDS 10 TO 20 KT BECOMING NORTH. CHANCE OF
SHOWERS. WAVES 1 TO 3 FT.

TUESDAY
NORTHWEST WINDS 10 TO 20 KT BECOMING NORTH. WAVES 1 TO
3 FT. 



LMZ080-669-671-673-675-777-779-870-872-874-876-878-312215-
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-
846 AM CDT FRI JUL 31 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

REST OF TODAY
WEST WINDS 10 TO 20 KT. A FEW GUSTS TO 25 KT THIS
AFTERNOON. WAVES 2 TO 4 FT.

TONIGHT
WEST WINDS 10 TO 20 KT BECOMING NORTHWEST. WAVES 2 TO
4 FT.

SATURDAY
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO
15 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2 FT.

SATURDAY NIGHT
WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST.
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.

SUNDAY
SOUTHWEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 3 FT.

SUNDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 3 FT.

MONDAY
WEST WINDS 10 TO 20 KT BECOMING NORTHWEST. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.

TUESDAY
NORTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT. 


LMZ761-312215-
MAFOR 3115/
MICHIGAN NORTH 13620 15720. WAVES 2 TO 4 FT.

MICHIGAN SOUTH 11620 12620 19630 12620 13720. WAVES 2 TO 4 FT.



JEE