Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 290154
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
854 PM CDT TUE JUL 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...HIGH PRESSURE OF 30.0 INCHES OVER THE EASTERN LAKES
WILL SLOWLY MOVE EAST TONIGHT. DEEP LOW PRESSURE OF 29.2 INCHES
OVER SOUTHWEST MANITOBA WILL MOVE NORTHEAST TO HUDSON BAY BY
WEDNESDAY EVENING...WHILE DEEPENING TO 29.1 INCHES. A TRAILING
COLD FRONT FROM THIS LOW WILL MOVE ACROSS THE LAKE EARLY
WEDNESDAY. HIGH PRESSURE OF 30.1 INCHES WILL BUILD ACROSS THE
CENTRAL PLAINS WEDNESDAY NIGHT AND THEN ACROSS THE OHIO VALLEY
THURSDAY NIGHT INTO FRIDAY. A WEAK TROUGH OF LOW PRESSURE
AVERAGING 29.8 INCHES AND AN ASSOCIATED WEAK COLD FRONT WILL MOVE
ACROSS LAKE MICHIGAN FRIDAY.

LMZ261-362-364-366-563-565-567-868-290930-
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-
854 PM CDT TUE JUL 28 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TONIGHT...SOUTH WINDS 10 TO 15 KT INCREASING TO 15 TO
25 KT. SCATTERED SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO 2
FT BUILDING TO 2 TO 4 FT.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST WINDS 10 TO
20 KT. SCATTERED SHOWERS AND THUNDERSTORMS IN THE MORNING. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.THURSDAY...WEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
.FRIDAY...WEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 1 TO 3 FT.
.FRIDAY NIGHT...WEST WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
WAVES 1 TO 2 FT.
.SATURDAY...WEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.SUNDAY...SOUTHWEST WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 TO 4 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-290930-
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-
854 PM CDT TUE JUL 28 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TONIGHT...SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTH 10
TO 20 KT. SCATTERED SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1
TO 3 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST. SCATTERED
SHOWERS AND THUNDERSTORMS IN THE MORNING. WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 1 TO 3 FT.
.THURSDAY...WEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
.THURSDAY NIGHT...WEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.FRIDAY...WEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.FRIDAY NIGHT...WEST WINDS 10 TO 15 KT BECOMING NORTHWEST 10 TO
20 KT. WAVES 1 TO 2 FT.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO
15 KT. WAVES 1 TO 3 FT.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 TO 4 FT.

$$
LMZ761-290930-
MAFOR 2903/
MICHIGAN NORTH 11410 11420 11430 11530 12520 19530 12620.
SCATTERED SHOWERS AND THUNDERSTORMS OVERNIGHT AND WEDNESDAY
MORNING. WAVES 1 TO 2 FT BUILDING TO 2 TO 4 FT OVERNIGHT AND TO 3
TO 5 FT OCCASIONALLY TO 7 FT WEDNESDAY MORNING AND THEN SUBSIDING
TO 2 TO 4 FT WEDNESDAY EVENING.

MICHIGAN SOUTH 11310 11410 11420 11520 13620 11610. SCATTERED
SHOWERS AND THUNDERSTORMS OVERNIGHT AND WEDNESDAY MORNING. WAVES
1 TO 3 FT.

$$

RC


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