Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 160754
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
254 AM CDT THU MAR 16 2017

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 OF THE HIGHEST 1/3 OF THE WAVE, ALONG WITH THE
AVERAGE HEIGHT OF THE HIGHEST 10% OF THE WAVES WHICH WILL
OCCASIONALLY BE ENCOUNTERED.

.SYNOPSIS...HIGH PRESSURE OF 30.4 INCHES OVER THE MID MISSISSIPPI
VALLEY WILL MOVE SOUTHEAST TO THE CAROLINA COAST FRIDAY. LOW
PRESSURE OF 29.7 INCHES WILL THEN DEVELOP ACROSS THE UPPER MIDWEST
AND WESTERN LAKES FRIDAY...DEEPENING TO 29.6 INCHES WHILE MOVING
EAST ON SATURDAY. HIGH PRESSURE OF 30.4 INCHES WILL SPREAD ACROSS
THE WESTERN LAKES AGAIN EARLY SUNDAY.

LMZ261-362-364-366-563-565-567-868-161400-
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-
254 AM CDT THU MAR 16 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...NORTHWEST WINDS 10 TO 15 KT BACKING TO SOUTHWEST 10 TO
20 KT. WAVES 1 TO 3 FT.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH TO 30 KT.
SNOW SHOWERS LIKELY OVERNIGHT. WAVES BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.FRIDAY...SOUTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT. SNOW
SHOWERS WITH A CHANCE OF RAIN SHOWERS. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.FRIDAY NIGHT...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST TO 30
KT. CHANCE OF RAIN OR SNOW. WAVES BUILDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.SATURDAY...NORTHWEST WINDS TO 30 KT. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.SUNDAY...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES 2 TO 4 FT.
.MONDAY...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST 10 TO 20 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-161400-
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-
254 AM CDT THU MAR 16 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT
THIS MORNING AND BECOMING SOUTHWEST THIS AFTERNOON. WAVES 3 TO
5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO 3 FT.
.TONIGHT...SOUTH WINDS 10 TO 20 KT INCREASING TO 30 KT. WINTRY
MIX LIKELY OVERNIGHT. WAVES BUILDING TO 4 TO 6 FT OCCASIONALLY
TO 8 FT.
.FRIDAY...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST 15 TO 25 KT
IN THE AFTERNOON. RAIN SHOWERS LIKELY IN THE MORNING...THEN
CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.FRIDAY NIGHT...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST TO 30
KT. OCCASIONAL GALE GUST TO 35 KT OVERNIGHT. WAVES BUILDING TO
5 TO 8 FT OCCASIONALLY TO 10 FT.
.SATURDAY...NORTHWEST WINDS TO 30 KT. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY...SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTH 15 TO 25 KT
IN THE AFTERNOON. WAVES 2 TO 4 FT.
.MONDAY...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST. WAVES 2 TO
4 FT.

$$

LMZ761-161400-
MAFOR 1609/
MICHIGAN NORTH 12710 11610 11510 12520 12437. WAVES 1 TO 3 FT
TODAY BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT TONIGHT.

MICHIGAN SOUTH 11730 11720 11620 11520 11420 11430 12437. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO 3 FT TODAY...
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT TONIGHT.

$$

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES



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