Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 040743
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
243 AM CDT WED MAY 4 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...LOW PRESSURE OF 29.6 INCHES LIES OVER MICHIGAN EARLY
THIS MORNING AND WILL MOVE EAST TO THE UPPER OHIO VALLEY BY THIS
EVENING...THEN MERGE WITH ANOTHER LOW ALONG THE MID ATLANTIC COAST
TONIGHT. MEANWHILE...HIGH PRESSURE OF 30.1 INCHES STRETCHES FROM
MANITOBA INTO THE DAKOTAS EARLY THIS MORNING AND WILL MOVE ACROSS
LAKE MICHIGAN ON THURSDAY...THEN TO THE OHIO VALLEY FRIDAY.
ANOTHER LOW OF 29.6 INCHES WILL MOVE ACROSS SOUTHERN MANITOBA
THURSDAY TO QUEBEC LATE FRIDAY NIGHT...WITH A TRAILING COLD FRONT
MOVING ACROSS LAKE MICHIGAN INTO EARLY SATURDAY. A 30.0 INCH HIGH
WILL BUILD ACROSS THE CANADIAN PRAIRIES OVER THE WEEKEND THEN MOVE
INTO THE GREAT LAKES EARLY NEXT WEEK.

LMZ261-362-364-366-563-565-041515-
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-
243 AM CDT WED MAY 4 2016

TWO RIVERS WI TO MANISTEE MI NORTH

.TODAY...NORTH WINDS TO 30 KT. CHANCE OF SHOWERS. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.TONIGHT...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT. WAVES
5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.THURSDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO
15 KT...THEN BACKING TO SOUTHWEST LATE. WAVES 2 TO 4 FT SUBSIDING
TO 1 TO 3 FT.
.THURSDAY NIGHT...SOUTH WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.FRIDAY...SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT BUILDING TO
2 TO 4 FT.
.FRIDAY NIGHT...SOUTH WINDS 10 TO 20 KT VEERING TO WEST. CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FT.
.SATURDAY...NORTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS. WAVES
2 TO 4 FT.
.SUNDAY...WEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-041515-
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-
243 AM CDT WED MAY 4 2016

TWO RIVERS WI TO MANISTEE MI SOUTH

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.TODAY...SOUTHWEST WINDS 15 TO 25 KT EARLY THIS MORNING VEERING TO
NORTH AND INCREASING TO GALES TO 35 KT. SLIGHT CHANCE OF SHOWERS.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 8 TO 12 FT
OCCASIONALLY TO 15 FT.
.TONIGHT...NORTH GALES TO 35 KT DIMINISHING TO 30 KT LATE. SLIGHT
CHANCE OF SHOWERS IN THE EVENING. WAVES 8 TO 12 FT OCCASIONALLY
TO 15 FT SUBSIDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT.
.THURSDAY...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 15 KT BECOMING SOUTHWEST.
WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH. WAVES 2 TO
4 FT.
.FRIDAY NIGHT...SOUTH WINDS 10 TO 20 KT BECOMING WEST. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FT.
.SATURDAY...NORTHWEST WINDS TO 30 KT BECOMING NORTH. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SUNDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES 1 TO
3 FT.

$$

LMZ761-041515-
MAFOR 0409/
MICHIGAN NORTH...15840 12830. CHANCE OF SHOWERS TODAY. WAVES 5 TO
8 FT OCCASIONALLY TO 10 FT TODAY SUBSIDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT TONIGHT.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...10539 16850. WAVES 3 TO
5 FT OCCASIONALLY TO 7 FT BUILDING TO 8 TO 12 FT OCCASIONALLY TO
15 FT TODAY. WAVES 8 TO 12 FT OCCASIONALLY TO 15 FT SUBSIDING TO 6
TO 9 FT OCCASIONALLY TO 11 FT TONIGHT.

$$

BMD


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