Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 210743
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
243 AM CDT SAT MAY 21 2016

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 29.9 INCHES OVER THE UPPER OHIO RIVER
VALLEY THIS MORNING WILL CONSOLIDATE WITH AN EAST COAST LOW OVER
THE MID-ATLANTIC THIS AFTERNOON INTO TONIGHT. MEANWHILE...HIGH
PRESSURE OF 30.2 INCHES CENTERED ACROSS MINNESOTA AND IOWA TODAY
AND TONIGHT WILL SHIFT SLOWLY EASTWARD ON SUNDAY. THIS HIGH WILL
EASE EAST OF LAKE MICHIGAN BY MONDAY MORNING WHILE LOW PRESSURE OF
29.3 INCHES DEVELOPS ACROSS THE SOUTHERN CANADIAN PRAIRIES. THIS
LOW WILL SLOWLY MOVE EAST AND WEAKEN WHILE LOW PRESSURE OF 29.6
INCHES DEVELOPS ACROSS THE CENTRAL PLAINS BY TUESDAY NIGHT.


LMZ261-362-364-366-563-565-567-868-211515-
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-
243 AM CDT SAT MAY 21 2016

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...NORTHWEST WINDS 5 TO 10 KT BECOMING WEST 10 TO 15 KT BY
EARLY THIS AFTERNOON. WAVES 1 TO 2 FT.
.TONIGHT...WEST WINDS 10 TO 15 KT BECOMING NORTHWEST LATE IN THE
EVENING...THEN NORTH AFTER MIDNIGHT. WAVES 1 TO 2 FT.
.SUNDAY...NORTHEAST WINDS 5 TO 10 KT BECOMING VARIABLE IN THE
AFTERNOON. WAVES 1 TO 2 FT.
.SUNDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KT BECOMING SOUTH 10 TO 15
KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
.MONDAY...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES BUILDING TO 2 TO 4 FT.
.MONDAY NIGHT...SOUTH WINDS 15 TO 20 KT. WAVES 2 TO 4 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 TO 4 FT.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KT BECOMING SOUTHEAST. CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-211515-
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-
243 AM CDT SAT MAY 21 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...NORTH WINDS 10 TO 15 KT BECOMING NORTHWEST 10 TO 20 KT IN
THE EARLY AFTERNOON. WAVES 1 TO 3 FT.
.TONIGHT...NORTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.SUNDAY...NORTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.SUNDAY NIGHT...VARIABLE WINDS 5 TO 10 KT BECOMING SOUTH AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
.MONDAY...SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 3 FT.

$$

LMZ761-211515-
MAFOR 2109/
MICHIGAN NORTH 13700 13610 11710 11810. WAVES 1 TO 2 FT.

MICHIGAN SOUTH 13810 12720 13710. WAVES 1 TO 3 FT.

$$

MTF



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