Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 270800
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 AM CDT MON OCT 27 2014

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...A BROAD AREA OF HIGH PRESSURE OF 30.0 INCHES EXTENDS
FROM THE EASTERN OHIO VALLEY INTO SOUTHERN QUEBEC...AND IT WILL
MOVE OVER THE SOUTHEAST ATLANTIC COAST LATER THIS MORNING. A 29.4
INCH LOW STRETCHES FROM WESTERN ONTARIO THROUGH THE CENTRAL
PLAINS...AND IT WILL FILL TO 29.6 INCHES AS IT MOVES OVER THE
CENTRAL PORTIONS OF LAKE MICHIGAN TONIGHT. A COUPLE OF COLD
FRONTS WILL MOVE OVER THE LAKE TUESDAY AND WEDNESDAY AS THE LOW
DEEPENS TO 29.2 INCHES AND MOVES OVER NORTHWEST ONTARIO WEDNESDAY.
HIGH PRESSURE OF 30.2 INCHES SPREADS OVER THE LAKE WEDNESDAY
AFTERNOON AND EVENING. A WEAK SURFACE TROUGH AVERAGING 29.9 INCHES
PASSES OVER THE LAKE THURSDAY NIGHT AS A LARGE 30.5 INCH HIGH
BUILDS OVER THE PLAINS AND MOVES OVER THE LAKE SATURDAY.

LMZ261-362-364-366-563-565-567-868-271515-
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-
300 AM CDT MON OCT 27 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTHEAST WINDS 15 TO 25 KT BECOMING SOUTH WINDS TO 30
KT. SHOWERS WITH THUNDERSTORMS LIKELY THIS MORNING...THEN CHANCE
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.TONIGHT...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING...THEN
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 4
TO 6 FT OCCASIONALLY TO 8 FT.
.TUESDAY...WEST WINDS 15 TO 25 KT INCREASING TO 30 KT. SLIGHT
CHANCE OF SHOWERS IN THE MORNING...THEN CHANCE OF SHOWERS IN THE
AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 6
FT OCCASIONALLY TO 8 FT.
.TUESDAY NIGHT...WEST WINDS TO 30 KT. CHANCE OF SHOWERS. WAVES
5 TO 8 FT OCCASIONALLY TO 10 FT.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT IN THE AFTERNOON. CHANCE OF SHOWERS. WAVES SUBSIDING TO 3 TO
5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY NIGHT...NORTHWEST WINDS 5 TO 10 KT. WAVES SUBSIDING TO
1 TO 3 FT.
.THURSDAY...WEST WINDS 5 TO 10 KT. SLIGHT CHANCE OF SHOWERS.
WAVES 1 TO 3 FT.
.FRIDAY...NORTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
SLIGHT CHANCE OF SHOWERS. WAVES BUILDING TO 3 TO 5 FT OCCASIONALLY
TO 7 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-271515-
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-
300 AM CDT MON OCT 27 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...SOUTHEAST WINDS 15 TO 25 KT BECOMING SOUTH. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THIS MORNING. WAVES 4
TO 6 FT OCCASIONALLY TO 8 FT.
.TONIGHT...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST TO 30 KT.
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE
EVENING...THEN SHOWERS WITH THUNDERSTORMS LIKELY OVERNIGHT. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT.
.TUESDAY...WEST WINDS TO 30 KT. WAVES BUILDING TO 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.TUESDAY NIGHT...WEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT
AFTER MIDNIGHT. WAVES SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT
LATE.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT IN THE AFTERNOON. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT
SUBSIDING TO 2 TO 4 FT IN THE AFTERNOON.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT OVERNIGHT. WAVES 1 TO 3 FT.
.THURSDAY...WEST WINDS 5 TO 10 KT. WAVES 1 TO 3 FT.
.FRIDAY...NORTH WINDS 15 TO 25 KT. SLIGHT CHANCE OF SHOWERS.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

$$

LMZ761-271515-
MAFOR 2709/
MICHIGAN NORTH 12339 12440 12430 12536. A CHANCE OF THUNDERSTORMS
TONIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 6
FT OCCASIONALLY TO 8 FT TODAY. WAVES 4 TO 6 FT OCCASIONALLY TO 8
FT TONIGHT.

MICHIGAN SOUTH 12330 12430 12436 12549. CHANCE OF SHOWERS EARLY
THIS MORNING. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT TODAY. WAVES 4
TO 6 FT OCCASIONALLY TO 8 FT TONIGHT.

$$

BEACHLER





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