Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 010150
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
850 PM CDT SUN AUG 31 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...LOW PRESSURE OF 29.5 INCHES OVER FAR NORTHWEST
MINNESOTA WILL MOVE NORTHEAST THROUGH ONTARIO TONIGHT...WITH A
TRAILING COLD FRONT MOVING ACROSS LAKE MICHIGAN MONDAY AND MONDAY
NIGHT AS THE LOW DEEPENS TO 29.3 INCHES NORTH OF THE LAKES. THE
LOW WILL CONTINUE TO MOVE NORTHEAST ACROSS JAMES BAY MONDAY
NIGHT...WHILE THE COLD FRONT CLEARS THE SOUTH END OF THE LAKE AND
A WEAK AREA OF HIGH PRESSURE OF 30.0 INCHES MOVES ACROSS ILLINOIS
AND INDIANA. THE HIGH WILL CONTINUE TO DRIFT INTO THE UPPER OHIO
VALLEY AND EASTERN LAKES BY TUESDAY NIGHT...AS ANOTHER LOW OF 29.6
INCHES DEVELOPS OVER THE NORTHERN PLAINS. THIS LOW WILL ALSO MOVE
NORTHEAST INTO ONTARIO WEDNESDAY AND THURSDAY...WITH ANOTHER COLD
FRONT TRAILING ACROSS LAKE MICHIGAN THURSDAY NIGHT INTO EARLY
FRIDAY.

LMZ261-362-364-366-563-565-567-868-011015-
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-
850 PM CDT SUN AUG 31 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TONIGHT...SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTH 15
TO 25 KT OVERNIGHT. AREAS OF DENSE FOG. WAVES 2 FT OR LESS
BUILDING TO 2 TO 4 FT OVERNIGHT.
.MONDAY...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST 15 TO 25 KT. A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING. SHOWERS AND
THUNDERSTORMS LIKELY IN THE AFTERNOON. WAVES BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.MONDAY NIGHT...WEST WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT SUBSIDING TO 2 TO 4 FT OVERNIGHT.
.TUESDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES 1 TO
2 FT.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KT. WAVES BUILDING TO 3 TO
5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY NIGHT...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.THURSDAY...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.FRIDAY...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-011015-
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-
850 PM CDT SUN AUG 31 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TONIGHT...SOUTHEAST WINDS AROUND 10 KT BECOMING SOUTH 10 TO 20
KT OVERNIGHT. AREAS OF FOG DENSE NORTH OF MILWAUKEE THIS EVENING.
WAVES 2 FT OR LESS BUILDING TO 2 TO 4 FT LATE.
.MONDAY...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST IN THE AFTERNOON.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING. SHOWERS AND
THUNDERSTORMS LIKELY LATE. WAVES BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT VEERING TO NORTHWEST 10 TO
15 KT. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT SUBSIDING TO 1 TO 3 FT LATE.
.TUESDAY...WEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.WEDNESDAY NIGHT...SOUTH WINDS 15 TO 25 KT. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FT.
.THURSDAY...SOUTH WINDS 15 TO 25 KT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.FRIDAY...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FT.

$$
LMZ761-011015-
MAFOR 0103/
MICHIGAN NORTH 11314 11324 11433 12440 11539 12630. AREAS OF FOG
OVERNIGHT. SHOWERS AND THUNDERSTORMS LIKELY MONDAY AFTERNOON.
WAVES 2 FT OR LESS THIS EVENING BUILDING TO 2 TO 4 FT OVERNIGHT
AND TO 4 TO 6 FT OCCASIONALLY TO 8 FT MONDAY.

MICHIGAN SOUTH 11304 11410 11420 12430 12530 11520. AREAS OF FOG
LATE THIS EVENING. CHANCE OF SHOWERS AND THUNDERSTORMS MONDAY AND
MONDAY EVENING. WAVES 2 FT OR LESS BUILDING TO 2 TO 4 FT OVERNIGHT
AND TO 4 TO 6 FT OCCASIONALLY TO 8 FT MONDAY.

$$

KMD







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