Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 310723
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
223 AM CDT THU JUL 31 2014

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...LOW PRESSURE OF 29.8 INCHES OVER EASTERN ONTARIO WILL
STEER A WEAK COOL FRONT SOUTHWARD INTO THE NORTHERN PART OF THE
LAKE TONIGHT. THIS FRONT WILL BASICALLY WASH OUT EARLY FRIDAY.
ANOTHER WEAK COOL FRONT WILL MOVE SOUTH OVER THE LAKE EARLY
SATURDAY WITH HIGH PRESSURE AROUND 30.1 INCHES MOVING OVER THE
LAKE SATURDAY NIGHT AND EARLY SUNDAY. LOW PRESSURE AROUND 29.7
INCHES IS EXPECTED TO DEVELOP OVER THE NORTHERN TO CENTRAL PLAINS
DURING TUESDAY AND APPROACH THE GREAT LAKES DURING THE MIDDLE OF
NEXT WEEK.

LMZ261-362-364-366-563-565-567-868-311545-
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-
223 AM CDT THU JUL 31 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH BY EARLY
AFTERNOON. ISOLATED SHOWERS. WAVES 1 TO 2 FT.
.TONIGHT...SOUTHWEST WINDS 10 TO 15 KT BECOMING VARIABLE 5 TO 10
KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
.FRIDAY...SOUTH WINDS 5 TO 10 KT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES AROUND 1 FT.
.FRIDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KT BACKING NORTHEAST
OVERNIGHT. SLIGHT CHANCE OF SHOWERS. WAVES AROUND 1 FT.
.SATURDAY...NORTHEAST WINDS 5 TO 10 KT. WAVES AROUND 1 FT.
.SATURDAY NIGHT...VARIABLE WINDS 5 TO 10 KT BECOMING SOUTHWEST.
WAVES 1 FT OR LESS.
.SUNDAY...SOUTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS.
WAVES 1 TO 3 FT.
.MONDAY...NORTHWEST WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO 15
KT MONDAY NIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO
2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-311545-
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-
223 AM CDT THU JUL 31 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH BY EARLY
AFTERNOON. SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS THIS
AFTERNOON. WAVES 1 TO 2 FT.
.TONIGHT...SOUTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF
SHOWERS. WAVES 1 TO 2 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH 5 TO 10 KT IN
THE AFTERNOON. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
1 TO 2 FT.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 10 KT. SLIGHT CHANCE OF SHOWERS.
WAVES AROUND 1 FT.
.SATURDAY...EAST WINDS 5 TO 10 KT BECOMING NORTH. SLIGHT CHANCE
OF SHOWERS IN THE MORNING...THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FT.
.SATURDAY NIGHT...NORTH WINDS AROUND 10 KT. WAVES 1 TO 2 FT.
.SUNDAY...VARIABLE WINDS 5 TO 10 KT BECOMING SOUTHWEST 10 TO 15 KT
SUNDAY NIGHT. WAVES 1 TO 2 FT.
.MONDAY...WEST WINDS 5 TO 10 KT BECOMING SOUTH. CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 2 FT.

$$

LMZ761-311545-
MAFOR 3109/
MICHIGAN NORTH 13510 12410 12510 11900. WAVES 1 TO 2 FT.

MICHIGAN SOUTH 13510 12410 13510. SCATTERED SHOWERS WITH ISOLATED
THUNDERSTORMS THIS AFTERNOON. WAVES 1 TO 2 FT.

$$

MTF






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