Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 190114
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
814 PM CDT THU AUG 18 2016

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 RIDGE OF HIGH PRESSURE AVERAGING 30.0 INCHES ACROSS
THE OHIO RIVER VALLEY AND EASTERN GREAT LAKES WILL MOVE SLOWLY
SOUTHEAST INTO FRIDAY. MEANWHILE...LOW PRESSURE OF 29.7 INCHES
ACROSS THE WESTERN CORN BELT WILL MOVE TO NORTHERN LAKE MICHIGAN
BY MIDDAY FRIDAY AND SLOWLY WEAKEN AS IT DOES SO. ANOTHER STRONGER
LOW PRESSURE OF 29.6 INCHES ACROSS THE MID MISSOURI VALLEY FRIDAY
NIGHT WILL STRENGTHEN TO 29.3 INCHES AS IT MOVES TO THE UPPER
PENINSULA OF MICHIGAN BY SATURDAY EVENING. A FAIRLY STOUT COLD
FRONT BEHIND THE LOW WILL PUSH ACROSS THE LAKE SATURDAY NIGHT.
HIGH PRESSURE OF 30.1 WILL SET UP EAST OF LAKE MICHIGAN EARLY NEXT
WEEK.


LMZ261-362-364-366-563-565-567-868-190915-
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-
814 PM CDT THU AUG 18 2016

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS OVERNIGHT. WAVES 2 TO 4 FT.
.FRIDAY...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST BY EARLY
AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FT.
.FRIDAY NIGHT...WEST WINDS 10 TO 15 KT VEERING TO NORTHEAST.
SHOWERS AND THUNDERSTORMS LIKELY. WAVES 1 TO 3 FT.
.SATURDAY...EAST WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT IN
THE AFTERNOON. SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 2 TO
4 FT.
.SATURDAY NIGHT...NORTHWEST WINDS TO 30 KT. SHOWERS LIKELY IN THE
EVENING...THEN CHANCE OF SHOWERS OVERNIGHT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.SUNDAY...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
CHANCE OF SHOWERS IN THE MORNING. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 1 TO 3 FT.
.MONDAY...WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST. WAVES 1 TO
2 FT.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-190915-
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-
814 PM CDT THU AUG 18 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST
LATE. CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1
TO 3 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 TO 4 FT.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 2 TO 4 FT.
.SATURDAY...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST 15 TO
25 KT. SHOWERS AND THUNDERSTORMS LIKELY IN THE MORNING...THEN
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 2 TO 4 FT.
.SATURDAY NIGHT...NORTHWEST WINDS TO 30 KT. CHANCE OF SHOWERS.
WAVES BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SUNDAY...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
CHANCE OF SHOWERS IN THE MORNING. WAVES 3 TO 6 FT OCCASIONALLY TO
8 FT SUBSIDING TO 2 TO 4 FT LATE IN THE DAY.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 15 KT. WAVES 2 TO 4 FT.
.MONDAY...NORTHWEST WINDS 5 TO 10 KT BECOMING WEST. WAVES 1 TO
2 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$
LMZ761-190915-
MAFOR 1903/
MICHIGAN NORTH 14420 11420 12520 11619. CHANCE OF SHOWERS AND
THUNDERSTORMS OVERNIGHT THROUGH FRIDAY. WAVES 2 TO 4 FT TONIGHT
AND FRIDAY...SUBSIDING TO 1 TO 3 FT FRIDAY EVENING.

MICHIGAN SOUTH 12420 15520. CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES 1 TO 3 FT TONIGHT BUILDING TO 2 TO 4 FT FRIDAY MORNING.

$$

MTF



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