Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 290744
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
244 AM CDT MON SEP 29 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...BROAD HIGH PRESSURE OF 30.1 INCHES IS SETTLING SOUTHWARD
ACROSS THE OHIO VALLEY AND SOUTHEAST U.S. WHILE A WEAK LOW OF 30.0
INCHES MOVES EASTWARD ACROSS THE UPPER PENINSULA OF MICHIGAN AND
NORTHERN LAKE MICHIGAN. A SHARP COLD FRONT TRAILS THE LOW AND WILL
MOVE SOUTHWARD DOWN THE LAKE TODAY TURNING WINDS NORTH TO
NORTHEASTERLY. HIGH PRESSURE OF 30.5 INCHES OVER NORTHERN ONTARIO
WILL WEAKEN TO AROUND 30.2 INCHES INTO TONIGHT AS IT SETTLES
SOUTHWARD SENDING A RIDGE AXIS ACROSS THE LAKE. THE HIGH WILL
FURTHER WEAKEN TUESDAY AS LOW PRESSURE OF 29.3 INCHES MOVES
NORTHWARD FROM THE CENTRAL HIGH PLAINS TO NORTHERN MANITOBA BY
WEDNESDAY NIGHT. ANOTHER LOW PRESSURE SYSTEM WILL DEVELOP ACROSS
THE SOUTHERN HIGH PLAINS THURSDAY AND CROSS LAKE MICHIGAN THURSDAY
NIGHT OR FRIDAY MORNING.

LMZ261-362-364-366-563-565-567-868-291545-
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-
244 AM CDT MON SEP 29 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING NORTHWEST TO 30 KT THIS
MORNING...TURNING NORTH THIS AFTERNOON. SHOWERS LIKELY THIS
MORNING...THEN CHANCE OF SHOWERS THIS AFTERNOON. WAVES 1 TO 3 FT
EARLY THIS MORNING BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.TONIGHT...NORTH WINDS TO 30 KT EASING TO 15 TO 20 KT TOWARD
DAYBREAK. SLIGHT CHANCE OF SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY
TO 10 FT.
.TUESDAY...NORTHEAST WINDS 15 TO 20 KT DIMINISHING TO 10 TO 15 KT
DURING THE AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO
7 FT.
.TUESDAY NIGHT...EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST. WAVES
SUBSIDING TO 1 TO 3 FT OVERNIGHT.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS.
WAVES 2 TO 4 FT.
.THURSDAY...SOUTH WINDS 10 TO 20 KT. SHOWERS AND THUNDERSTORMS
LIKELY. WAVES 2 TO 4 FT.
.FRIDAY...WEST WINDS 15 TO 25 KT INCREASING TO 30 KT. CHANCE OF
SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.


$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-291545-
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-
244 AM CDT MON SEP 29 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...SOUTHWEST WINDS AROUND 10 KT VEERING TO NORTH 20 TO 25 KT
LATE THIS AFTERNOON. PATCHY FOG THROUGH MID MORNING. CHANCE OF
SHOWERS THIS AFTERNOON. WAVES 1 TO 2 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT LATE THIS AFTERNOON.
.TONIGHT...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 20 KT LATE.
CHANCE OF SHOWERS THROUGH EARLY EVENING...THEN SLIGHT CHANCE OF
SHOWERS FROM LATE EVENING ON. WAVES BUILDING TO 5 TO 8 FT
OCCASIONALLY TO 10 FT THIS EVENING.
.TUESDAY...NORTH WINDS 15 TO 20 KT DIMINISHING TO 10 TO 15 KT. WAVES
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT LATE IN THE AFTERNOON.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 15 KT BECOMING SOUTHEAST.
WAVES SUBSIDING TO 1 TO 3 FT OVERNIGHT.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KT. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 2 TO 4 FT.
.THURSDAY...SOUTH WINDS 10 TO 20 KT. SHOWERS AND THUNDERSTORMS
LIKELY. WAVES 2 TO 4 FT.
.FRIDAY...WEST WINDS TO 30 KT. CHANCE OF SHOWERS. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.

$$

LMZ761-291545-
MAFOR 2909/
MICHIGAN NORTH 11520 11736 19630 12746 13840 11830. CHANCE OF
SHOWERS THIS AFTERNOON AND A SLIGHT CHANCE TONIGHT. WAVES 1 TO 3
FT THIS MORNING BUILDING TO 4 T 7 FT OCCASIONALLY TO 9 FT THIS
AFTERNOON AND TO 5 TO 8 FT OCCASIONALLY TO 10 FT THIS EVENING.

MICHIGAN SOUTH 14510 11830 19840 12840 11830. PATCHY FOG THROUGH
MID MORNING. CHANCE OF SHOWERS THIS AFTERNOON AND EARLY THIS
EVENING. SLIGHT CHANCE OF SHOWERS FROM LATE EVENING ON. WAVES 1 TO
2 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT LATE THIS
AFTERNOON AND TO 5 TO 8 FT OCCASIONALLY TO 10 FT THIS EVENING.

$$

MDB




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