Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 020155
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
855 PM CDT FRI MAY 1 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 30.1 INCHES OVER SOUTHERN LAKE
MICHIGAN AND ILLINOIS WILL SLOWLY MOVE EAST OVERNIGHT...REACHING
THE OHIO VALLEY ON SATURDAY. LOW PRESSURE OF 29.3 INCHES WILL MOVE
FROM THE SOUTHERN CANADIAN PRAIRIES SATURDAY AFTERNOON TO HUDSON
BAY BY SUNDAY. A COLD FRONT TRAILING FROM THIS LOW WILL MOVE
ACROSS THE WESTERN GREAT LAKES SUNDAY EVENING AND THEN SOUTH DOWN
THE LAKE SUNDAY NIGHT AND MONDAY. THE FRONT WILL THEN STALL JUST
SOUTH OF THE LAKE MONDAY NIGHT...BEFORE EVENTUALLY RETURNING
NORTHWARD AS A WARM FRONT MIDWEEK AS LOW PRESSURE ORGANIZES OVER THE
NORTHERN HIGH PLAINS.

LMZ261-362-364-366-563-565-567-868-020915-
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-
855 PM CDT FRI MAY 1 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

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

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-020915-
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-
855 PM CDT FRI MAY 1 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TONIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH 10 TO
20 KT. WAVES 2 TO 4 FT.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST.
WAVES 2 TO 4 FT.
.SUNDAY...SOUTH WINDS 15 TO 25 KT. WAVES 2 TO 4 FT BUILDING TO
3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT. SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.MONDAY...WEST WINDS 10 TO 20 KT BECOMING NORTH 10 TO 15 KT.
SHOWERS AND THUNDERSTORMS LIKELY. WAVES 2 TO 4 FT SUBSIDING TO
1 TO 3 FT.
.MONDAY NIGHT...NORTHEAST WINDS 10 TO 15 KT. CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.TUESDAY...EAST WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT.

$$
LMZ761-020915-
MAFOR 0204/
MICHIGAN NORTH 13520 12510 11420 11430 11530. WAVES 1 TO 3 FT
OVERNIGHT BUILDING TO 2 TO 4 FT SATURDAY AND TO 3 TO 5 FT
OCCASIONALLY TO 7 FT SATURDAY EVENING.

MICHIGAN SOUTH 14510 11510 13420. WAVES 1 TO 2 FT OVERNIGHT
BUILDING TO 2 TO 4 FT SATURDAY AND SATURDAY EVENING.

$$

RATZER


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