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NWS Forecast

FZUS63 KLOT 271935
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
235 PM CDT MON APR 27 2015

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 AVERAGING 30.2 INCHES WILL EXPAND OVER
MUCH OF THE NORTHERN UNITED STATES BY TUESDAY...AND REMAIN
DOMINANT OVER THE GREAT LAKES REGION FOR MUCH OF THE WEEK.
MEANWHILE...LOW PRESSURE AVERAGING 29.6 INCHES WILL MOVE EAST
ALONG THE GULF COAST THROUGH THURSDAY....THEN NORTHEAST ALONG THE
ATLANTIC COAST FRIDAY.

LMZ261-362-364-366-563-565-567-868-280415-
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-
235 PM CDT MON APR 27 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

TONIGHT
NORTH WINDS 10 TO 20 KT DIMINISHING TO 5 TO 10 KT.
WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.

TUESDAY
NORTH WINDS 5 TO 10 KT BECOMING WEST 10 TO 15 KT.
WAVES 1 TO 2 FT.

TUESDAY NIGHT
WEST WINDS 5 TO 10 KT BECOMING NORTH. WAVES 1 FT
OR LESS.

WEDNESDAY
NORTH WINDS 10 TO 20 KT. WAVES 1 TO 2 FT BUILDING TO
1 TO 3 FT.

WEDNESDAY NIGHT
NORTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.

THURSDAY
NORTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.

THURSDAY NIGHT
NORTH WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. WAVES 1 TO 3 FT.

FRIDAY
NORTHWEST WINDS 10 TO 15 KT BACKING TO SOUTHWEST. WAVES
1 TO 2 FT.

SATURDAY
SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. 



LMZ080-669-671-673-675-777-779-870-872-874-876-878-280415-
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-
235 PM CDT MON APR 27 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

TONIGHT
NORTH WINDS 10 TO 20 KT DIMINISHING TO 5 TO 10 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT.

TUESDAY
NORTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.

TUESDAY NIGHT
NORTH WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.

WEDNESDAY
NORTH WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 1 TO 3 FT.

WEDNESDAY NIGHT
NORTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

THURSDAY
NORTH WINDS 15 TO 25 KT. WAVES 2 TO 4 FT BUILDING TO
3 TO 5 FT OCCASIONALLY TO 7 FT.

THURSDAY NIGHT
NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO
15 KT OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

FRIDAY
NORTH WINDS 10 TO 15 KT BECOMING NORTHWEST. WAVES 1 TO
3 FT.

SATURDAY
SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. 



LMZ761-280415-
MAFOR 2722/
MICHIGAN NORTH 11820 12810 14800 11710. WAVES 2 TO 4 FT TONIGHT
SUBSIDING TO 1 TO 2 FT EARLY TUESDAY.

MICHIGAN SOUTH 12820 11810 12800 13810. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO 3 FT BY TUESDAY MORNING.



KMD