Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 280158
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
858 PM CDT TUE SEP 27 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 29.5 INCHES OVER EASTERN LAKE
SUPERIOR WILL MOVE SOUTH ACROSS LAKE MICHIGAN TONIGHT AND THEN TO
THE MID ATLANTIC REGION WEDNESDAY NIGHT WHILE WEAKENING. HIGH
PRESSURE OF 30.4 INCHES WILL BUILD ACROSS ONTARIO AND THE UPPER
MIDWEST WEDNESDAY NIGHT INTO THURSDAY AND REMAIN STATIONARY... AS
THE LOW OVER THE MID ATLANTIC MOVES BACK WEST ACROSS THE SOUTHERN
LAKES REGION FRIDAY INTO SATURDAY AT 30.0 INCHES.

LMZ261-362-364-366-563-565-567-868-280930-
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-
858 PM CDT TUE SEP 27 2016

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...WEST WINDS 10 TO 20 KT BECOMING VARIABLE LESS
THAN 10 KT LATE THIS EVENING...THEN BECOMING EAST 10 TO 20 KT
LATE. CHANCE OF WATERSPOUTS THIS EVENING...THEN WATERSPOUTS
LIKELY OVERNIGHT. SHOWERS LIKELY WITH SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 3 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO
2 TO 4 FT.
.WEDNESDAY...EAST WINDS 10 TO 20 KT BECOMING NORTHEAST 15 TO
25 KT. WATERSPOUTS LIKELY. SCATTERED SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING...THEN SCATTERED SHOWERS IN THE
AFTERNOON. WAVES 2 TO 4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO
9 FT.
.WEDNESDAY NIGHT THROUGH FRIDAY...NORTHEAST WINDS 20 TO 25 KT
WITH GUSTS TO AROUND 30 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 8 FT.
.FRIDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. CHANCE OF SHOWERS. WAVES 2 TO 4 FT.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KT. CHANCE OF SHOWERS. WAVES
1 TO 3 FT.
.SUNDAY...NORTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-280930-
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-
858 PM CDT TUE SEP 27 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT FROM WEDNESDAY EVENING THROUGH LATE
WEDNESDAY NIGHT...

.REST OF TONIGHT...NORTH WINDS 10 TO 20 KT. SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS OVERNIGHT. CHANCE OF WATERSPOUTS
OVERNIGHT. WAVES 3 TO 6 FT OCCASIONALLY TO 8 FT.
.WEDNESDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST TO 30 KT.
WATERSPOUTS LIKELY. SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
WAVES 2 TO 4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.WEDNESDAY NIGHT...NORTHEAST WINDS TO 30 KT. WATERSPOUTS LIKELY.
SHOWERS. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
.THURSDAY...NORTHEAST WINDS TO 30 KT. SCATTERED SHOWERS. WAVES 6 TO
10 FT OCCASIONALLY TO 13 FT.
.FRIDAY NIGHT...NORTHEAST WINDS TO 30 KT DIMINISHING TO 10 TO
20 KT OVERNIGHT. CHANCE OF SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...NORTHEAST WINDS 10 TO 15 KT. CHANCE OF SHOWERS. WAVES
2 TO 4 FT.
.SUNDAY...NORTH WINDS 10 TO 15 KT. CHANCE OF SHOWERS. WAVES 1 TO
2 FT.

$$

LMZ761-280930-
MAFOR 2803/
MICHIGAN NORTH 10626 11906 11216 13126 13136. CHANCE OF
WATERSPOUTS THIS EVENING...WATERSPOUTS LIKELY LATE TONIGHT AND
WEDNESDAY. WAVES 3 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO
4 FT TONIGHT THEN BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT
WEDNESDAY.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...15826 12146 CHANCE OF
WATERSPOUTS TONIGHT. WATERSPOUTS LIKELY WEDNESDAY. WAVES 3 TO 6 FT
OCCASIONALLY TO 8 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT
WEDNESDAY AFTERNOON.

$$

IZZI

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE (ALL LOWER CASE)

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)



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