Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 200830 CCA
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
322 AM CDT MON MAY 20 2013

CORRECTED TYPO IN SYNOPSIS...SHORTENED MAFOR.

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN

.SYNOPSIS...LOW PRESSURE OF 29.4 INCHES...ACROSS THE PLAINS WILL
REMAIN NEARLY STATIONARY OVER THE EASTERN DAKOTAS AND WEST
CENTRAL MINNESOTA TODAY WHILE A WARM FRONT CONTINUES NORTHWARD
FROM CENTRAL LAKE MICHIGAN TO NORTHERN LAKE MICHIGAN WHERE IT WILL
BECOMES STATIONARY BY THIS EVENING. THE LOW WILL MOVE SLOWLY EAST
ACROSS THE UPPER MIDWEST TUESDAY AND TUESDAY NIGHT...FILLING TO
29.6 INCHES...AN CROSS LAKE MICHIGAN WEDNESDAY MORNING...WEAKENING
FURTHER TO 29.8 INCHES AS IT MOVES FURTHER EAST AND INTO THE LOWER
LAKES REGION BY WEDNESDAY NIGHT. A LARGE AREA OF HIGH PRESSURE OF
30.5 INCHES WILL GRADUALLY BUILD SOUTH-SOUTHEAST ACROSS SOUTH
CENTRAL CANADA...THE UPPER MIDWEST...THE MISSISSIPPI VALLEY AND
THE UPPER GREAT LAKES TO THE OHIO VALLEY WEDNESDAY NIGHT THROUGH
FRIDAY.

//

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.


LMZ261-362-364-563-201545-
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
322 AM CDT MON MAY 20 2013

STURGEON BAY WI TO POINT BETSIE MI NORTH

.TODAY...SOUTHEAST WINDS 10 TO 20 KT. PATCHY DENSE FOG. SHOWERS
AND THUNDERSTORMS THIS MORNING....WITH MORE SHOWERS AND
THUNDERSTORMS LIKELY THIS AFTERNOON. WAVES 1 TO 3 FT.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KT. PATCHY DENSE FOG. SHOWERS
AND THUNDERSTORMS LIKELY. WAVES 1 TO 3 FT.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KT. PATCHY DENSE FOG. SHOWERS
AND THUNDERSTORMS LIKELY. WAVES 1 TO 2 FT.
.TUESDAY NIGHT...EAST WINDS 10 TO 15 KT BECOMING NORTHEAST.
SHOWERS AND THUNDERSTORMS LIKELY. WAVES 1 TO 2 FT.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KT. SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 1 TO 2 FT.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT. SHOWERS LIKELY.
WAVES 2 TO 4 FT OCCASIONALLY TO 6 FT.
.THURSDAY...NORTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS. WAVES
3 TO 5 FT OCCASIONALLY TO 8 FT.
.FRIDAY...NORTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.


$$

LMZ366-565-567-669-671-673-675-868-870-872-874-201545-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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 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 PENTWATER TO MANISTEE MI 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-
322 AM CDT MON MAY 20 2013

STURGEON BAY WI TO POINT BETSIE MI SOUTH TO WINTHROP HARBOR IL TO
SOUTH HAVEN MI

.TODAY...SOUTH WINDS 15 TO 25 KT. PATCHY DENSE FOG. SHOWERS AND
THUNDERSTORMS THIS MORNING...THEN MORE SHOWERS AND THUNDERSTORMS
LIKELY LATE. WAVES 1 TO 3 FT.
.TONIGHT...SOUTH WINDS 10 TO 20 KT. PATCHY DENSE FOG. SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 1 TO 3 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT. PATCHY DENSE FOG. SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 1 TO 3 FT.
.TUESDAY NIGHT...SOUTH WINDS 10 TO 20 KT. SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 1 TO 3 FT.
.WEDNESDAY...NORTH WINDS 10 TO 20 KT. SHOWERS AND THUNDERSTORMS
LIKELY. WAVES 1 TO 2 FT.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 TO 4 FT OCCASIONALLY TO 6 FT.
.THURSDAY...NORTH WINDS TO 30 KT. CHANCE OF SHOWERS. WAVES 4 TO
6 FT OCCASIONALLY TO 9 FT.
.FRIDAY...NORTH WINDS 15 TO 25 KT. WAVES 3 TO 5 FT OCCASIONALLY
TO 8 FT.


$$

LMZ080-777-779-876-878-201545-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-
322 AM CDT MON MAY 20 2013

WINTHROP HARBOR IL TO SOUTH HAVEN MI SOUTH

.TODAY...SOUTH WINDS 15 TO 25 KT. PATCHY DENSE FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH EARLY AFTERNOON...THEN SHOWERS
AND THUNDERSTORMS LIKELY LATE. WAVES 1 TO 3 FT.
.TONIGHT...SOUTH WINDS 15 TO 25 KT. PATCHY DENSE FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN SHOWERS AND
THUNDERSTORMS LIKELY OVERNIGHT. WAVES 1 TO 3 FT.
.TUESDAY...SOUTH WINDS 15 TO 25 KT. PATCHY DENSE FOG. SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 1 TO 3 FT.
.TUESDAY NIGHT...SOUTH WINDS 10 TO 20 KT. SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING NORTHWEST.
SHOWERS AND THUNDERSTORMS LIKELY. WAVES 1 TO 2 FT.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT.
.THURSDAY...NORTH WINDS TO 30 KT. CHANCE OF SHOWERS. WAVES 4 TO
6 FT OCCASIONALLY TO 9 FT.
.FRIDAY...NORTH WINDS 15 TO 25 KT. WAVES 3 TO 5 FT OCCASIONALLY
TO 8 FT.


$$

LMZ761-201545-
MAFOR 2009/
MICHIGAN NORTH 11320 15329 11329 PATCHY DENSE FOG.
WAVES 1 TO 3 FT.

MICHIGAN SOUTH 11330 13430 14439 PATCHY DENSE FOG.
WAVES 1 TO 3 FT.


$$








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