Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 271954
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
254 PM CDT WED MAY 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...WEAK HIGH PRESSURE RIDGING OF 30.1 INCHES OVER THE
SOUTHEASTERN STATES WILL REMAIN LARGELY STATIONARY INTO THE
WEEKEND. LOW PRESSURE OF 29.8 INCHES OVER WESTERN NORTH DAKOTA
WILL MOVE NORTHEAST TO NEAR HUDSON BAY BY FRIDAY MORNING...THEN
CONTINUE EAST INTO QUEBEC BY SATURDAY MORNING 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.

LMZ261-362-364-366-563-565-567-868-280315-
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-
254 PM CDT WED MAY 27 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TONIGHT...SOUTHWEST WINDS 10 TO 15 KT. ISOLATED SHOWERS AND
THUNDERSTORMS THIS EVENING. PATCHY FOG. WAVES 1 TO 3 FT.
.THURSDAY...SOUTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.THURSDAY NIGHT...SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.FRIDAY...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING...THEN SHOWERS AND THUNDERSTORMS
LIKELY IN THE AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY 7 FT.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KT BECOMING NORTH TO 30 KT
OVERNIGHT. SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE
EVENING...THEN SHOWERS LIKELY OVERNIGHT. WAVES 1 TO 3 FT BUILDING
TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...NORTH WINDS TO 30 KT. CHANCE OF SHOWERS IN THE
MORNING. WAVES BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KT BECOMING NORTHEAST
10 TO 20 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 15 KT INCREASING TO 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 2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-280315-
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-
254 PM CDT WED MAY 27 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TONIGHT...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 5 TO 10 KT.
PATCHY FOG OVERNIGHT. WAVES 1 TO 3 FT.
.THURSDAY...SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTH LATE IN THE
MORNING...THEN INCREASING 10 TO 20 KT IN THE AFTERNOON BECOMING
SOUTHEAST LATE. WAVES 1 TO 3 FT.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.FRIDAY...SOUTH WINDS 15 TO 20 KT. SHOWERS AND THUNDERSTORMS
LIKELY...MAINLY IN THE AFTERNOON. WAVES 2 TO 4 FT.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT SHIFTING TO NORTH TO
30 KT OVERNIGHT. SHOWERS AND THUNDERSTORMS IN THE EVENING. WAVES
2 TO 4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.SATURDAY...NORTH GALES TO 35 KT. CHANCE OF SHOWERS IN THE
MORNING. WAVES 7 TO 10 FT OCCASIONALLY TO 13 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 SUBSIDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KT. WAVES SUBSIDING TO 3 TO 5
FT OCCASIONALLY TO 7 FT.
.MONDAY...NORTHEAST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 1 TO 3 FT.

$$

LMZ761-280315-
MAFOR 2722/
MICHIGAN NORTH 13513 12513 13410. WAVES 1 TO 3 FT.

MICHIGAN SOUTH 10610 15500 11410 11420. WAVES 1 TO 3 FT.

$$

IZZI



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