Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 261446 CCA
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
946 AM CDT FRI MAY 26 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...LOW PRESSURE OF 29.4 INCHES OVER NEW ENGLAND WILL
MOVE OVER THE ATLANTIC TODAY WHILE A WEAK RIDGE AVERAGING 29.8
INCHES OVER LAKE MICHIGAN WILL SHIFT TO THE EASTERN GREAT LAKES.
A WEAK LOW OF 29.7 INCHES WILL MOVE ACROSS THE MID MISSISSIPPI
VALLEY TODAY AND THEN INTO THE OHIO VALLEY TONIGHT INTO SATURDAY
MORNING. LOW PRESSURE OF 29.7 INCHES WILL DEVELOP OVER THE
SOUTHERN PLAINS SATURDAY AND LIFT TO MICHIGAN EARLY SUNDAY.
MEANWHILE...ANOTHER LOW OF 29.5 INCHES WILL MOVE EAST ACROSS THE
CANADIAN PRAIRIES OVER THE WEEKEND. THE TWO LOWS WILL MERGE OVER
ONTARIO LATE SUNDAY THEN SLOWLY LIFT TO JAMES BAY MONDAY NIGHT
INTO TUESDAY.

LMZ261-362-364-366-563-565-567-868-262130-
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-
946 AM CDT FRI MAY 26 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT SATURDAY...

.REST OF TODAY...SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTHWEST 10
TO 15 KT. AREAS OF DENSE FOG. WAVES 1 FT OR LESS.
.TONIGHT...SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTH. SLIGHT
CHANCE OF RAIN SHOWERS IN THE EVENING. AREAS OF DENSE FOG. WAVES
1 FT OR LESS.
.SATURDAY...SOUTH WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
AREAS OF DENSE FOG IN THE MORNING. WAVES 1 FT OR LESS.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KT BECOMING NORTHEAST.
CHANCE OF RAIN SHOWERS OVERNIGHT. WAVES 1 FT OR LESS.
.SUNDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. CHANCE
OF RAIN SHOWERS. WAVES 1 FT OR LESS.
.SUNDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 1 TO 2 FT.
.MONDAY...WEST WINDS 10 TO 20 KT. CHANCE OF RAIN SHOWERS. WAVES
1 TO 3 FT.
.TUESDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. CHANCE OF
RAIN SHOWERS. WAVES 1 TO 3 FT.

$$

LMZ669-671-673-675-870-872-874-876-262130-
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 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-
946 AM CDT FRI MAY 26 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH TO WINTHROP HARBOR IL TO SOUTH
HAVEN MI...

...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT SATURDAY...

.REST OF TODAY...VARIABLE WINDS 5 TO 10 KT. AREAS OF DENSE FOG.
CHANCE OF SHOWERS THIS AFTERNOON. WAVES 1 TO 2 FT.
.TONIGHT...EAST WINDS 10 TO 15 KT BECOMING NORTHEAST 5 TO 10 KT.
CHANCE OF SHOWERS IN THE EVENING. AREAS OF DENSE FOG. WAVES 1 TO
2 FT.
.SATURDAY...EAST WINDS 5 TO 10 KT BECOMING SOUTHEAST IN THE
AFTERNOON. AREAS OF DENSE FOG IN THE MORNING. WAVES 1 FT OR LESS.
.SATURDAY NIGHT...EAST WINDS 5 TO 10 KT BECOMING SOUTHEAST 10 TO
15 KT. CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 FT
OR LESS.
.SUNDAY...WEST WINDS 10 TO 15 KT. CHANCE OF SHOWERS. WAVES 1 FT
OR LESS.
.SUNDAY NIGHT...WEST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 1 TO 2 FT BUILDING TO 1 TO 3 FT.
.MONDAY...WEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS. WAVES 1 TO
3 FT.
.TUESDAY...WEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$

LMZ080-777-779-878-262130-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO
MID LAKE-
946 AM CDT FRI MAY 26 2017

WINTHROP HARBOR IL TO SOUTH HAVEN MI SOUTH...

.REST OF TODAY...NORTHEAST WINDS 5 TO 10 KT BECOMING VARIABLE LATE
THIS MORNING...THEN BECOMING NORTHEAST 10 TO 15 KT LATE. AREAS OF
FOG. SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON.
WAVES 1 TO 3 FT.
.TONIGHT...NORTHEAST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. AREAS
OF FOG. WAVES 1 TO 3 FT.
.SATURDAY...NORTHEAST WINDS AROUND 10 KT. AREAS OF FOG IN THE
MORNING. WAVES 1 TO 2 FT.
.SATURDAY NIGHT...EAST WINDS 5 TO 10 KT BECOMING SOUTHEAST 10 TO
15 KT. CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 FT
OR LESS.
.SUNDAY...WEST WINDS 10 TO 15 KT. CHANCE OF SHOWERS. WAVES 1 FT
OR LESS.
.SUNDAY NIGHT...WEST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 1 TO 2 FT BUILDING TO 1 TO 3 FT.
.MONDAY...WEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS. WAVES 1 TO
3 FT.
.TUESDAY...WEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$
LMZ761-262130-
MAFOR 2615/
MICHIGAN NORTH 11504 12514 11504 14404. WAVES 1 FOOT OR LESS.

MICHIGAN SOUTH 10104 11904 11914 11114 11216 19214 13114 11104.
CHANCE OF SHOWERS TODAY. WAVES 1 TO 3 FT TODAY AND TONIGHT. WAVES
1 TO 2 FT SATURDAY MORNING.


$$


JEE

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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