Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 080749
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
249 AM CDT TUE JUL 8 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 29.5 INCHES OVER NORTHERN LAKE
MICHIGAN WILL PUSH AN ASSOCIATED COLD FRONT ACROSS THE LAKE EARLY
THIS MORNING. THIS LOW WILL SHIFT NORTHEASTWARD ACROSS LAKE HURON
BY MIDDAY TODAY...THEN CONTINUE NORTHEASTWARD AND MERGE WITH A
SECOND AREA OF LOW PRESSURE ACROSS QUEBEC...WHILE DEEPENING TO
29.3 INCHES BY WEDNESDAY MORNING. ANOTHER WEAK COLD FRONTAL TROUGH
WILL CROSS LAKE MICHIGAN THROUGH EARLY WEDNESDAY...BEFORE HIGH
PRESSURE AVERAGING 30.1 INCHES SPREADS EAST FROM THE MID MISSOURI
VALLEY TO THE WESTERN GREAT LAKES LATE WEDNESDAY NIGHT AND
THURSDAY. THE HIGH WILL BUILD SLIGHTLY TO 30.2 INCHES AS IT DRIFTS
EAST ACROSS THE CENTRAL GREAT LAKES REGION THURSDAY.

LMZ261-362-364-366-563-565-567-868-081545-
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-
249 AM CDT TUE JUL 8 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTH WINDS 10 TO 20 KT QUICKLY SHIFTING OUT OF THE
NORTHWEST EARLY THIS MORNING. SHOWERS AND THUNDERSTORMS LIKELY
THROUGH MID MORNING... THEN CHANCE OF SHOWERS AND THUNDERSTORMS
LATE THIS MORNING AND THIS AFTERNOON. WAVES 2 TO 3 FT.
.TONIGHT...NORTHWEST WINDS 10 TO 15 KT BECOMING WEST 5 TO 10 KT.
CHANCE OF SHOWERS. WAVES 1 TO 2 FT.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KT. CHANCE OF SHOWERS IN
THE MORNING...THEN SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
WAVES 1 TO 2 FT.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 10 KT. WAVES LESS THAN 2 FT.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.THURSDAY NIGHT...SOUTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.FRIDAY...SOUTH WINDS 10 TO 20 KT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 TO 4 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-081545-
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-
249 AM CDT TUE JUL 8 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...SOUTH WINDS 10 TO 20 KT QUICKLY BECOMING WEST 15 TO 20 KT
EARLY THIS MORNING...THEN BECOMING NORTHWEST AND EASING TO 10 TO 15
KT IN THE AFTERNOON. SHOWERS AND THUNDERSTORMS THROUGH MID
MORNING. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT THIS AFTERNOON.
.TONIGHT...NORTHWEST WINDS 10 TO 15 KT BECOMING WEST. SLIGHT
CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH. WAVES
1 TO 2 FT.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 10 KT BECOMING EAST. WAVES
1 TO 2 FT.
.THURSDAY...SOUTHEAST WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.FRIDAY...SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 3 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 3 FT.

$$

LMZ761-081545-
MAFOR 0809/
MICHIGAN NORTH 10420 11529 11729 13720 11710 12600. SHOWERS AND
THUNDERSTORMS LIKELY EARLY THIS MORNING. CHANCE OF SHOWERS
TONIGHT. WAVES 2 TO 3 FT TODAY. WAVES 1 TO 2 FT TONIGHT.

MICHIGAN SOUTH 10420 11529 12620 11720 12710 12610. SHOWERS AND
THUNDERSTORMS LIKELY EARLY THIS MORNING. WAVES 2 TO 4 FT SUBSIDING
TO 1 TO 3 FT TODAY AND TONIGHT.

$$

KJB







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