Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 191356
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
856 AM CDT FRI AUG 19 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 MIDDLE ATLANTIC REGION WILL MOVE SLOWLY SOUTHEAST THIS
EVENING. LOW PRESSURE OF 29.6 INCHES ACROSS THE MID MISSOURI
VALLEY WILL DEEPEN 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.

LMZ261-362-364-366-563-565-567-868-192115-
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-
856 AM CDT FRI AUG 19 2016

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KT. NUMEROUS SHOWERS
AND THUNDERSTORMS THIS MORNING...THEN CHANCE OF SHOWERS AND
THUNDERSTORMS THIS AFTERNOON. WAVES 2 TO 4 FT.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KT DIMINISHING TO 5 TO 10 KT
AFTER MIDNIGHT BACKING TO SOUTHEAST LATE. SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
SUBSIDING TO 2 TO 4 FT.
.SATURDAY...SOUTHEAST 10 TO 20 KT INCREASING TO 15 TO 25 KT EARLY
IN THE AFTERNOON BECOMING SOUTH TO 30 KT LATE. SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT OCCASIONALLY
TO 7 FT.
.SATURDAY NIGHT...SOUTHWEST WINDS TO 30 KT BECOMING WEST.
OCCASIONAL GALE FORCE GUSTS TO 35 KT. CHANCE OF SHOWERS. WAVES 4
TO 6 FT OCCASIONALLY TO 8 FT BUILDING TO 5 TO 8 FT OCCASIONALLY
TO 10 FT.
.SUNDAY...WEST WINDS TO 30 KT. CHANCE OF SHOWERS IN THE MORNING.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.SUNDAY NIGHT...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. WAVES SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.MONDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO 20 KT.
WAVES 2 TO 4 FT.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-192115-
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-
856 AM CDT FRI AUG 19 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH.
NUMEROUS SHOWERS AND THUNDERSTORMS THIS MORNING...THEN CHANCE OF
SHOWERS AND THUNDERSTORMS THIS AFTERNOON. WAVES 2 TO 4 FT.
.TONIGHT...SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 2 TO 4 FT.
.SATURDAY...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST TO 30 KT.
SHOWERS AND THUNDERSTORMS LIKELY IN THE MORNING...THEN SHOWERS
AND THUNDERSTORMS IN THE AFTERNOON. WAVES 2 TO 4 FT BUILDING TO 4
TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY NIGHT...WEST WINDS TO 30 KT. OCCASIONAL GALE FORCE GUSTS
TO 35 KT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
WAVES BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT.
.SUNDAY...WEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT. WAVES
6 TO 9 FT OCCASIONALLY TO 11 FT SUBSIDING TO 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.MONDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES 2 TO 4
FT.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH. WAVES 2 TO
4 FT.

$$
LMZ761-192115-
MAFOR 1915/
MICHIGAN NORTH 11529 12520 11519 11619 11509 11409 11419.
SCATTERED SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND AGAIN LATE
TONIGHT. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7
FT THEN BRIEFLY SUBSIDING TO 1 TO 3 FT SATURDAY MORNING.

MICHIGAN SOUTH 11529 15420 11429. CHANCE OF SHOWERS AND
THUNDERSTORMS LATE THIS AFTERNOON AND AGAIN OVERNIGHT. WAVES 2 TO
4 FT.

$$

KMD



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