Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 231353
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
853 AM CDT SAT MAY 23 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 30.5 INCHES CENTERED OVER THE
EASTERN GREAT LAKES WILL CONTINUE TO DRIFT EAST TOWARDS THE MIDDLE
ATLANTIC REGION THIS AFTERNOON. LOW PRESSURE OF 29.5 INCHES WILL
MOVE FROM THE CENTRAL PLAINS ON MEMORIAL DAY TO NEAR LAKE SUPERIOR
BY TUESDAY...LIKELY BRINGING A COLD FRONT ACROSS THE LAKE SOMETIME
ON OR NEAR TUESDAY. ANOTHER LOW PRESSURE SYSTEM COULD PASS NEAR
THE SOUTHERN PORTION OF THE LAKE ON WEDNESDAY.

LMZ261-362-364-366-563-565-567-868-232130-
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-
853 AM CDT SAT MAY 23 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH 15 TO 25 KT.
WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TONIGHT...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST 10 TO
15 KT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO
4 FT.
.SUNDAY...SOUTH WINDS 10 TO 15 KT. PATCHY FOG IN THE AFTERNOON.
WAVES 1 TO 3 FT.
.SUNDAY NIGHT...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHEAST 15 TO
25 KT. AREAS OF FOG. SHOWERS IN THE EVENING...THEN SHOWERS WITH A
CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 1 TO 3 FT BUILDING TO
3 TO 5 FT OCCASIONALLY TO 7 FT.
.MONDAY...SOUTH WINDS 15 TO 25 KT INCREASING TO 30 KT. SHOWERS
LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE MORNING. AREAS OF
FOG. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KT. AREAS OF FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TUESDAY...SOUTH WINDS 15 TO 25 KT. AREAS OF FOG. CHANCE OF
SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. AREAS OF FOG. CHANCE OF SHOWERS. WAVES 1 TO 3 FT.


$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-232130-
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-
853 AM CDT SAT MAY 23 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...SOUTH WINDS 10 TO 15 KT BECOMING SOUTHEAST 10 TO 20 KT.
WAVES 1 TO 3 FT.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH 10 TO
15 KT. WAVES 1 TO 3 FT.
.SUNDAY...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHEAST 10 TO 20 KT.
PATCHY FOG IN THE AFTERNOON. CHANCE OF SHOWERS IN THE AFTERNOON.
WAVES 1 TO 3 FT.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH 15 TO
25 KT. AREAS OF FOG. SHOWERS LIKELY WITH A CHANCE OF
THUNDERSTORMS IN THE EVENING...THEN CHANCE OF SHOWERS AND
THUNDERSTORMS OVERNIGHT. WAVES 2 TO 4 FT.
.MONDAY...SOUTH WINDS 15 TO 25 KT. SHOWERS LIKELY WITH A CHANCE
OF THUNDERSTORMS IN THE MORNING. AREAS OF FOG. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KT. AREAS OF FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO 2 TO 4 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT. AREAS OF FOG. CHANCE OF
SHOWERS. WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. AREAS OF FOG. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
1 TO 3 FT.

$$
LMZ761-232130-
MAFOR 2316/
MICHIGAN NORTH 11520 12430 11420 12520 11510 11410. WAVES 1 TO 3
FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT THIS AFTERNOON.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT
TONIGHT. WAVES 1 TO 3 FT SUNDAY MORNING.

MICHIGAN SOUTH 11410 13310 13410 11400. WAVES 1 TO 3 FT.

$$

MDB



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