Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 170847
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
247 AM CST FRI FEB 17 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 RIDGING OF 30.1 INCHES OVER THE EASTERN
GREAT LAKES AND UPPER OHIO VALLEY WILL CONTINUE TO MOVE EAST
TODAY...AS LOW PRESSURE OF 29.2 INCHES MOVES ACROSS SASKATCHEWAN
AND MANITOBA FRIDAY AND TO JAMES BAY SATURDAY EVENING. ANOTHER
RIDGE AVERAGING 30.0 INCHES WILL BUILD ACROSS THE NORTHERN PLAINS
SATURDAY AND MOVE EAST TO THE EASTERN GREAT LAKES AND UPPER OHIO
VALLEY LATE SUNDAY. A 29.5 INCH LOW WILL LIFT FROM THE CENTRAL
PLAINS EARLY MONDAY TO THE NORTHERN REGION OF ONTARIO TUESDAY.

LMZ261-362-364-366-563-565-171630-
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-
247 AM CST FRI FEB 17 2017

TWO RIVERS WI TO MANISTEE MI NORTH...

.TODAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH THIS MORNING.
WAVES 2 TO 4 FT.
.TONIGHT...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES 2 TO
4 FT.
.SATURDAY...WEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 1 TO 3 FT.
.SUNDAY...NORTHWEST WINDS 10 TO 15 KT DIMINISHING TO 5 TO 10 KT.
WAVES 1 TO 2 FT.
.SUNDAY NIGHT...EAST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT BUILDING
TO 2 TO 4 FT.
.TUESDAY...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST 10 TO 20 KT IN
THE AFTERNOON. RAIN LIKELY. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-171630-
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-
247 AM CST FRI FEB 17 2017

TWO RIVERS WI TO MANISTEE MI SOUTH...

.TODAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH THIS MORNING.
WAVES 2 TO 4 FT.
.TONIGHT...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST 15 TO
25 KT. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7
FT.
.SATURDAY...WEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT SUBSIDING TO
1 TO 3 FT.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO
15 KT. WAVES 1 TO 2 FT.
.SUNDAY...WEST WINDS 5 TO 10 KT VEERING TO NORTHEAST. WAVES 1 TO
2 FT.
.SUNDAY NIGHT...EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST 10 TO
20 KT. WAVES 1 TO 2 FT.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES 2 TO 4 FT.
.TUESDAY...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST 10 TO 20 KT IN
THE AFTERNOON. RAIN LIKELY. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
SUBSIDING TO 2 TO 4 FT.

$$

LMZ761-171630-
MAFOR 1710/
MICHIGAN NORTH 11320 14420 11420 12520. WAVES 2 TO 4 FT.

MICHIGAN SOUTH 11320 14420 11420 12530. WAVES 2 TO 4 FT TODAY.
WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT
TONIGHT.

$$


KJB

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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