Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 110749
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
249 AM CDT SAT APR 11 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 OF 30.3 INCHES WILL MOVE FROM CENTRAL
ILLINOIS THIS MORNING TO THE APPALACHIANS BY EVENING. A COLD FRONT
AVERAGING 29.7 INCHES EXTENDING FROM A MUCH DEEPER LOW ACROSS
HUDSON BAY...WILL MOVE ACROSS THE LAKE ON MONDAY. ANOTHER HIGH
PRESSURE OF 30.3 INCHES WILL THEN MOVE OVER THE LAKE ON
TUESDAY AND TO THE EASTERN GREAT LAKES BY WEDNESDAY. A TROUGH OF
LOW PRESSURE IS EXPECTED TO MOVE OVER THE LAKE LATE IN THE WEEK.


LMZ261-362-364-366-563-565-567-868-111530-
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 SAT APR 11 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST THIS
MORNING...THEN BECOMING SOUTH 10 TO 20 KT EARLY THIS AFTERNOON.
WAVES 1 TO 3 FT.
.TONIGHT...SOUTH WINDS 15 TO 20 KT. WAVES 2 TO 4 FT.
.SUNDAY...SOUTH WINDS 15 TO 25 KT INCREASING TO 30 KT BY LATE
MORNING. WAVES BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
.SUNDAY NIGHT...SOUTH WINDS TO 30 KT. SHOWERS LIKELY WITH A
CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 5 TO 8 FT OCCASIONALLY
TO 10 FT.
.MONDAY...SOUTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT.
CHANCE OF SHOWERS IN THE MORNING. WAVES SUBSIDING TO 2 TO 4 FT.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST. WAVES
2 TO 4 FT.
.TUESDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES 1 TO
3 FT.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-111530-
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 SAT APR 11 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...WEST WINDS 10 TO 15 KT BACKING TO SOUTH BY EARLY
AFTERNOON. WAVES 1 TO 3 FT.
.TONIGHT...SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
.SUNDAY...SOUTH WINDS 15 TO 25 KT. WAVES BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.SUNDAY NIGHT...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST 20 TO 25
KT LATE. CHANCE OF SHOWERS IN THE EVENING...THEN SHOWERS LIKELY
WITH A CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.MONDAY...WEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
CHANCE OF SHOWERS IN THE MORNING. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING SOUTH BY TUESDAY
NIGHT. WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$

LMZ761-111530-
MAFOR 1110/
MICHIGAN NORTH 12600 11500 14420 11420. WAVES 1 TO 3 FT TODAY
BUILDING TO 2 TO 4 FT TONIGHT.

MICHIGAN SOUTH 12610 11510 12410 13420. WAVES 1 TO 3 FT.

$$

MTF


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