Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 281351
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
851 AM CDT THU MAY 28 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...A RIDGE OF HIGH PRESSURE AVERAGING 30.3 INCHES
CENTERED OVER THE CENTRAL GREAT LAKES WILL SLIDE EAST THIS
AFTERNOON...REACHING NEW ENGLAND BY LATE TONIGHT. A LOW PRESSURE
OF 29.8 INCHES OVER THE UPPER PLAINS WILL MOVE NORTHEAST TO NEAR
HUDSON BAY BY FRIDAY MORNING...THEN CONTINUE EAST INTO QUEBEC BY
SATURDAY MORNING WHILE DEEPENING SLIGHTLY TO 29.6 INCHES. A COLD
FRONT TRAILING THIS LOW WILL MOVE SOUTH ACROSS THE LAKE FRIDAY
NIGHT AS UNSEASONABLY STRONG HIGH PRESSURE OF 30.5 BUILDS SOUTH
INTO THE NORTHERN PLAINS IN THE WAKE OF THIS FRONT FRIDAY NIGHT
INTO SATURDAY. THE HIGH WILL EVENTUALLY MOVE EAST INTO THE
NORTHERN LAKES REGION SUNDAY.

LMZ261-362-364-366-563-565-567-868-282130-
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-
851 AM CDT THU MAY 28 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TODAY...VARIABLE WINDS 5 TO 10 KT BECOMING SOUTHEAST 10
TO 15 KT EARLY THIS AFTERNOON...THEN INCREASING TO 10 TO 20 KT
LATE THIS AFTERNOON. WAVES 1 TO 2 FT.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH. WAVES 1 TO
3 FT.
.FRIDAY...SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING...THEN SHOWERS AND THUNDERSTORMS
LIKELY IN THE AFTERNOON. WAVES 2 TO 4 FT.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT VEERING TO NORTH TO
30 KT OVERNIGHT. SHOWERS WITH THUNDERSTORMS LIKELY IN THE
EVENING...THEN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS
OVERNIGHT. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7
FT.
.SATURDAY...NORTH WINDS TO 30 KT. CHANCE OF SHOWERS IN THE
MORNING. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.SATURDAY NIGHT...NORTH WINDS TO 30 KT BECOMING NORTHEAST 15 TO
25 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO
5 FT OCCASIONALLY TO 7 FT.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.MONDAY...EAST WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO 15 KT.
WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-282130-
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-
851 AM CDT THU MAY 28 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TODAY...SOUTH WINDS 5 TO 10 KT INCREASING TO 10 TO 20 KT
LATE IN THE DAY. WAVES 1 TO 3 FT.
.TONIGHT...SOUTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.FRIDAY...SOUTH WINDS 10 TO 20 KT. SHOWERS AND THUNDERSTORMS
LIKELY IN THE AFTERNOON. WAVES 2 TO 4 FT.
.FRIDAY NIGHT...SOUTH WINDS 10 TO 20 KT BECOMING WEST TO 30 KT
OVERNIGHT. SHOWERS WITH THUNDERSTORMS LIKELY IN THE EVENING...
THEN SHOWERS WITH A CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 1 TO
3 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY...NORTH GALES TO 35 KT. SHOWERS LIKELY WITH A CHANCE OF
THUNDERSTORMS IN THE MORNING. WAVES 6 TO 9 FT OCCASIONALLY TO 11
FT BUILDING TO 8 TO 11 FT OCCASIONALLY TO 14 FT.
.SATURDAY NIGHT...NORTH WINDS TO 30 KT BECOMING NORTHEAST 15 TO
25 KT. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT SUBSIDING TO 5 TO 8
FT OCCASIONALLY TO 10 FT.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.MONDAY...NORTHEAST WINDS 10 TO 15 KT. WAVES 2 TO 4 FT.

$$
LMZ761-282130-
MAFOR 2816/
MICHIGAN NORTH 11900 11310 13320 13420. WAVES 1 TO 3 FT THROUGH
TONIGHT...THEN BUILDING TO 2 TO 4 FT FRIDAY MORNING.

MICHIGAN SOUTH 11400 11410 11420 14410 11420. WAVES 1 TO 3 FT.

$$

MTF


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