Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 011354
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
854 AM CDT SAT AUG 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...A 29.2 INCH LOW OVER HUDSON BAY WILL REMAIN
STATIONARY THROUGH SUNDAY AS IT SLOWLY WEAKENS TO 29.5 INCHES.
MEANWHILE...A 30.2 INCH HIGH IS CENTERED OVER THE NORTHERN PLAINS
BUT EXTENDS THROUGH THE OHIO VALLEY. THE HIGH WILL SLOWLY SHIFT
EAST WHILE A TROUGH AVERAGING 29.6 INCHES ASSOCIATED WITH A COLD
FRONT SWINGS OVER THE LAKE SUNDAY AFTERNOON AND NIGHT. A 30.0 INCH
HIGH WILL THEN SPREAD OVER THE WESTERN GREAT LAKES MONDAY EVENING
AND SHIFT EAST OF THE LAKE MID NEXT WEEK.

LMZ261-362-364-366-563-565-567-868-012130-
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 AM CDT SAT AUG 1 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TODAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST 10 TO
15 KT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON.
WAVES 1 TO 3 FT.
.TONIGHT...SOUTHWEST WINDS 10 TO 15 KT INCREASING TO 15 TO 20 KT.
CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES BUILDING TO 2
TO 4 FT.
.SUNDAY...SOUTHWEST WINDS 15 TO 20 KT BECOMING WEST 10 TO 20 KT
BY EARLY EVENING. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 2 TO
4 FT.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. CHANCE OF SHOWERS IN THE EVENING. WAVES 2 TO 4 FT.
.MONDAY...NORTHWEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 1 TO 3 FT.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. WAVES 1 TO 2 FT.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH. WAVES 1 TO
2 FT.
.WEDNESDAY...NORTH WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-012130-
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 AM CDT SAT AUG 1 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TODAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES
1 TO 3 FT.
.TONIGHT...SOUTH WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO
20 KT. CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO
3 FT.
.SUNDAY...SOUTHWEST WINDS 15 TO 20 KT INCREASING TO 20 TO 25 KT
WITH GUSTS TO 30 KT POSSIBLE. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST 10 TO
15 KT OVERNIGHT. SHOWERS AND THUNDERSTORMS LIKELY IN THE
EVENING...THEN CHANCE OF SHOWERS OVERNIGHT. WAVES SUBSIDING TO 2
TO 4 FT.
.MONDAY...NORTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
.TUESDAY...NORTHWEST WINDS 5 TO 10 KT BECOMING NORTH 10 TO 15 KT.
WAVES 1 FT OR LESS.
.WEDNESDAY...NORTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.

$$
LMZ761-012130-
MAFOR 0115/
MICHIGAN NORTH 10620 11610 11510 11510 19520 11510 14520. CHANCE
OF SHOWERS AND THUNDERSTORMS LATE TONIGHT AND SUNDAY MORNING.
WAVES 1 TO 3 FT TODAY BUILDING TO 2 TO 4 FT TONIGHT AND CONTINUING
SUNDAY.

MICHIGAN SOUTH 12610 11510 11410 12510 12520. CHANCE OF SHOWERS
AND THUNDERSTORMS LATE TONIGHT. CHANCE OF SHOWERS AND
THUNDERSTORMS SUNDAY MORNING. WAVES 1 TO 3 FT THIS AFTERNOON AND
TONIGHT BUILDING TO 2 TO 4 FT SUNDAY MORNING.

$$

RC


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