Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 241957
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
257 PM CDT THU JUL 24 2014

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 30.2 INCHES LIES ACROSS THE GREAT LAKES
REGION THIS AFTERNOON. THE HIGH WILL MOVE TO THE MID ATLANTIC COAST
BY SATURDAY WHILE TWO AREAS OF LOW PRESSURE DEVELOP TO OUR WEST. THE
FIRST LOW OF 29.7 INCHES WILL DEVELOP OVER THE NORTHERN PLAINS
THURSDAY NIGHT...THEN MOVE INTO THE WESTERN LAKES LATE FRIDAY AND
DISSIPATE. MEANWHILE...A SECOND LOW OF 29.6 INCHES WILL DROP INTO THE
CANADIAN PRAIRIES FRIDAY...THEN MOVE INTO THE CENTRAL GREAT LAKES
REGION SUNDAY. A COLD FRONT WILL MOVE ACROSS THE LAKE BEHIND THIS
FRONT AND HIGH PRESSURE OF 30.2 INCHES WILL BUILD ACROSS THE
CENTRAL AND NORTHERN PLAINS MONDAY...THEN EXPAND EASTWARD ON TUESDAY.

LMZ261-362-364-366-563-565-250400-
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-
257 PM CDT THU JUL 24 2014

TWO RIVERS WI TO MANISTEE MI NORTH

.TONIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH 15 TO 25 KT.
WAVES 2 TO 4 FT...BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT LATE.
.FRIDAY NIGHT...SOUTH 15 TO 25 KT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN CHANCE OF SHOWERS AND
THUNDERSTORMS OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 TO 4 FT.
.SATURDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KT. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.SUNDAY...WEST WINDS 10 TO 15 KT BECOMING NORTHWEST 15 TO 25 KT.
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FT.
.SUNDAY NIGHT...NORTH WINDS TO 30 KT. CHANCE OF SHOWERS. WAVES
4 TO 7 FT OCCASIONALLY TO 9 FT.
.MONDAY...NORTH WINDS 15 TO 25 KT. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT.
.TUESDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. SLIGHT
CHANCE OF SHOWERS. WAVES 1 TO 2 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-250400-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 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 PENTWATER TO MANISTEE MI 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-
257 PM CDT THU JUL 24 2014

TWO RIVERS WI TO MANISTEE MI SOUTH

.TONIGHT...VARIABLE WINDS 5 TO 10 KT BECOMING SOUTH 10 TO 15 KT.
WAVES 1 TO 3 FT.
.FRIDAY...SOUTH WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT IN THE
AFTERNOON. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. WAVES 1 TO 3 FT INCREASING TO 2 TO 4 FT IN THE
AFTERNOON.
.FRIDAY NIGHT...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN SHOWERS AND THUNDERSTORMS
LIKELY OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KT. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.
.SUNDAY...WEST WINDS 10 TO 15 KT BECOMING NORTHWEST 15 TO 25 KT.
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FT
BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY NIGHT...NORTH WINDS TO 30 KT. CHANCE OF SHOWERS. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 7 FT OCCASIONALLY
TO 9 FT OVERNIGHT.
.MONDAY...NORTH WINDS TO 30 KT. WAVES 5 TO 8 FT OCCASIONALLY TO
10 FT.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING WEST. SLIGHT
CHANCE OF SHOWERS. WAVES SUBSIDING TO 2 TO 4 FT.

$$

LMZ761-250400-
MAFOR 2421/
MICHIGAN NORTH 11500 14510 12520 11430. WAVES 1 TO 3 FT TONIGHT
AND EARLY FRIDAY BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT LATE.

MICHIGAN SOUTH 10700 12900 12400 13410 11420. WAVES 1 TO 3 FT
TONIGHT. WAVES 1 TO 3 FT FRIDAY MORNING INCREASING TO 2 TO 4 FT
FRIDAY AFTERNOON.

$$

KMD







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