Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 221952
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
252 PM CDT FRI MAY 22 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 CENTERED ACROSS LAKE
MICHIGAN WILL MOVE TO THE ATLANTIC COAST ON SATURDAY. 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.

LMZ261-362-364-366-563-565-567-868-230330-
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-
252 PM CDT FRI MAY 22 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TONIGHT...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHWEST 10 TO 20 KT
BY DAYBREAK. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT. WAVES BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO
10 TO 15 KT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO
1 TO 3 FT.
.SUNDAY...SOUTH WINDS 10 TO 15 KT. CHANCE OF SHOWERS. PATCHY FOG
IN THE AFTERNOON. WAVES 1 TO 2 FT.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH 15 TO
25 KT. AREAS OF FOG. SHOWERS WITH A CHANCE OF THUNDERSTORMS.
WAVES BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.MONDAY...SOUTH WINDS 15 TO 25 KT INCREASING TO 30 KT THEN EASING
TO 15 TO 25 KT LATE. AREAS OF FOG. SHOWERS WITH A CHANCE OF
THUNDERSTORMS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KT. AREAS OF FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TUESDAY...SOUTH WINDS 15 TO 25 KT. AREAS OF FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 10 KT. AREAS OF FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-230330-
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-
252 PM CDT FRI MAY 22 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TONIGHT...NORTHEAST WINDS 10 TO 15 KT BECOMING EAST 5 TO 10 KT
THEN VEERING TO SOUTH. WAVES 1 TO 3 FT.
.SATURDAY...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHEAST 10 TO
20 KT. WAVES 1 TO 3 FT.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTH 5 TO
10 KT. WAVES 1 TO 3 FT.
.SUNDAY...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHEAST 10 TO 20 KT
IN THE AFTERNOON. CHANCE OF SHOWERS IN THE MORNING... THEN
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
PATCHY FOG IN THE AFTERNOON. WAVES 1 TO 2 FT BUILDING TO 1 TO
3 FT.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH 15 TO
25 KT. AREAS OF FOG. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING...THEN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS
OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.MONDAY...SOUTH WINDS 15 TO 25 KT. AREAS OF FOG. SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KT. AREAS OF FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
SUBSIDING TO 2 TO 4 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT. AREAS OF FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FT.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTH. AREAS OF
FOG. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.

$$

LMZ761-230330-
MAFOR 2222/
MICHIGAN NORTH 13400 11410 11510 19520 12520 11530. WAVES 1 TO 2
FT TONIGHT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT ON SATURDAY.

MICHIGAN SOUTH 11110 11200 11300 12400 12410 11310 19320. WAVES 1
TO 3 FT.

$$


RC



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