Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 121348
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
848 AM CDT FRI SEP 12 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...HIGH PRESSURE OF 30.6 INCHES IS CENTERED OVER THE
NORTHERN PLAINS WITH RIDGING EXTENDING INTO THE GREAT LAKES. THE
HIGH WILL MOVE OVER THE MID MISSOURI VALLEY TONIGHT WHILE LOW
PRESSURE OF 29.9 INCHES DEVELOPS OVER THE UPPER OHIO VALLEY AND
LIFTS INTO THE EASTERN GREAT LAKES BY SATURDAY AFTERNOON. THE HIGH
WILL THEN BUILD OVER THE EASTERN GREAT LAKES BY SUNDAY. MEANWHILE
ANOTHER LOW OF 29.9 INCHES WILL MOVE EAST ACROSS THE CANADIAN
PRAIRIES SUNDAY MERGING WITH A DEEPER LOW OVER HUDSON BAY AND
DRAGGING A COLD FRONT ACROSS LAKE MICHIGAN ON MONDAY. HIGH
PRESSURE OF 30.2 INCHES WILL BUILD IN BEHIND THE FRONT AND REMAIN
OVER THE GREAT LAKES THROUGH MIDWEEK.

LMZ261-362-364-366-563-565-567-868-122200-
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-
848 AM CDT FRI SEP 12 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TODAY...NORTHEAST WINDS 10 TO 15 KT. SLIGHT CHANCE OF
RAIN EARLY THIS AFTERNOON. SHOWERS LATE. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.TONIGHT...NORTHEAST WINDS 10 TO 15 KT. SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. SLIGHT CHANCE OF
WATERSPOUTS OVERNIGHT. WAVES SUBSIDING TO 2 TO 4 FT.
.SATURDAY...NORTH WINDS 10 TO 15 KT BACKING TO WEST LESS THAN
10 KT. SLIGHT CHANCE OF SHOWERS IN THE MORNING. WAVES 1 TO 3 FT.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.SUNDAY...SOUTHWEST WINDS 15 TO 20 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT. CHANCE OF SHOWERS.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.MONDAY...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST. CHANCE OF
SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.TUESDAY...WEST WINDS 10 TO 15 KT. WAVES 2 TO 4 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-122200-
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-
848 AM CDT FRI SEP 12 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TODAY...NORTH WINDS 10 TO 20 KT. SCATTERED SHOWERS THIS
MORNING...THEN SHOWERS WITH A CHANCE OF RAIN THIS AFTERNOON.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.TONIGHT...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST AND
INCREASING TO 30 KT WITH A FEW GALES TO 35 POSSIBLE. SHOWERS IN
THE EVENING...THEN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
OVERNIGHT. SLIGHT CHANCE OF WATERSPOUTS OVERNIGHT. WAVES BUILDING
TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
.SATURDAY...NORTH WINDS 15 TO 25 KT DIMINISHING TO 5 TO 10 KT
LATE. CHANCE OF SHOWERS IN THE MORNING. WAVES 6 TO 9 FT
OCCASIONALLY TO 11 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY NIGHT...WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST. WAVES
SUBSIDING TO 1 TO 3 FT.
.SUNDAY...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT. SLIGHT CHANCE OF
SHOWERS. WAVES 2 TO 4 FT.
.MONDAY...WEST WINDS 10 TO 15 KT BECOMING NORTHWEST 10 TO 20 KT.
CHANCE OF SHOWERS. WAVES 2 TO 4 FT.
.TUESDAY...NORTH WINDS 10 TO 15 KT. WAVES 2 TO 4 FT.

$$
LMZ761-122200-
MAFOR 1215/
MICHIGAN NORTH 11110 15116 11810. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT THIS AFTERNOON SUBSIDING TO 2 TO 4 FT TONIGHT AND SATURDAY
MORNING.

MICHIGAN SOUTH 13820 11826 11736 12746 19759 11830. WAVES 4 TO 6
FT OCCASIONALLY TO 8 FT...BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10
FT TONIGHT. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT SATURDAY
MORNING.

$$

KREIN




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