Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 120149
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
849 PM CDT FRI APR 11 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 29.6 INCHES WILL DEVELOP ACROSS THE
NORTHERN PLAINS TONIGHT AND MOVE OVER CENTRAL SECTIONS OF THE
LAKE SATURDAY NIGHT...WHILE LEAVING A TRAILING COLD FRONT DRAPED
ACROSS THE SOUTHERN PART OF THE LAKE ON SUNDAY. A SECOND LOW
AROUND 29.5 INCHES WILL MOVE ALONG THIS BOUNDARY...FROM THE
SOUTHERN PLAINS SUNDAY AFTERNOON TO AROUND FAR SOUTHERN LAKE
MICHIGAN BY LATE SUNDAY NIGHT. THIS LOW WILL THEN ADVANCE TO
WESTERN QUEBEC BY MONDAY EVENING...POTENTIALLY LEADING TO A PERIOD
OF NORTHERLY GALES FOR THE LAKE SUNDAY NIGHT INTO MONDAY. HIGH
PRESSURE OF 30.2 INCHES WILL BUILD OVER THE LAKE DURING MIDWEEK.

LMZ261-362-364-563-120800-
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
849 PM CDT FRI APR 11 2014

STURGEON BAY WI TO POINT BETSIE MI NORTH

.REST OF TONIGHT...SOUTHWEST WINDS 10 TO 15 KT BECOMING VARIABLE
5 TO 10 KT AFTER MIDNIGHT THEN EAST TOWARD MORNING. WAVES 1 TO 3
FT.
.SATURDAY...EAST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT IN
THE AFTERNOON. CHANCE OF SHOWERS IN THE MORNING...THEN SHOWERS
WITH A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES BUILDING
TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KT BACKING TO NORTH 10 TO
15 KT. SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO 2 TO 4 FT.
.SUNDAY...NORTH WINDS 10 TO 20 KT INCREASING TO 20 TO 25 KT IN
THE AFTERNOON. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
MORNING...THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY NIGHT...NORTH WINDS TO 30 KT. CHANCE OF SHOWERS IN THE
EVENING...THEN RAIN OR SNOW LIKELY OVERNIGHT. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.MONDAY...NORTH WINDS TO 30 KT EASING TO 20 TO 25 KT IN THE
AFTERNOON. CHANCE OF RAIN OR SNOW IN THE MORNING...THEN CHANCE OF
RAIN IN THE AFTERNOON. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KT. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.TUESDAY...NORTH WINDS 10 TO 20 KT BECOMING EAST TUESDAY NIGHT.
SLIGHT CHANCE OF SNOW. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KT. SLIGHT CHANCE OF SNOW.
WAVES 2 TO 4 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ366-565-567-669-868-870-120800-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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 SHEBOYGAN TO PORT WASHINGTON WI 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-
849 PM CDT FRI APR 11 2014

STURGEON BAY WI TO POINT BETSIE MI SOUTH TO PORT WASHINGTON WI TO
WHITEHALL MI

.REST OF TONIGHT...VARIABLE WINDS AROUND 10 KT BECOMING EAST
OVERNIGHT. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT
AND BECOMING SOUTH IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS
THROUGH MID MORNING...THEN CHANCE OF SHOWERS LATE IN THE MORNING.
SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY NIGHT...SOUTHWEST WINDS 15 TO 20 KT VEERING TO
NORTHWEST 10 TO 15 KT. SHOWERS AND THUNDERSTORMS. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.SUNDAY...NORTH WINDS 10 TO 20 KT INCREASING TO 30 KT LATE. SHOWERS
AND THUNDERSTORMS LIKELY IN THE MORNING...THEN CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE AFTERNOON. WAVES BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT LATE.
.SUNDAY NIGHT...NORTH WINDS TO 30 KT INCREASING TO GALES TO 40 KT
AFTER MIDNIGHT. SHOWERS LIKELY IN THE EVENING...THEN RAIN OR SNOW
OVERNIGHT. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT BUILDING TO 8 TO
12 FT OCCASIONALLY TO 15 FT OVERNIGHT.
.MONDAY...NORTH GALES TO 35 KT EASING TO 30 KT IN THE AFTERNOON.
CHANCE OF RAIN OR SNOW IN THE MORNING...THEN CHANCE OF RAIN IN THE
AFTERNOON. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT.
.MONDAY NIGHT...NORTH WINDS 15 TO 25 KT EASING TO 10 TO 20 KT.
WAVES SUBSIDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
.TUESDAY...NORTH WINDS 10 TO 20 KT. SLIGHT CHANCE OF SNOW. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ080-671-673-675-777-779-872-874-876-878-120800-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-
849 PM CDT FRI APR 11 2014

PORT WASHINGTON WI TO WHITEHALL MI SOUTH

.REST OF TONIGHT...SOUTH WINDS 10 TO 15 KT BECOMING EAST 5 TO 10
KT OVERNIGHT. WAVES 1 TO 3 FT.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH AND
INCREASING TO 30 KT IN THE AFTERNOON. CHANCE OF SHOWERS AND
THUNDERSTORMS...MAINLY IN THE AFTERNOON. WAVES BUILDING TO 3 TO 5
FT OCCASIONALLY TO 7 FT.
.SATURDAY NIGHT...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST 15 TO
25 KT. SHOWERS AND THUNDERSTORMS LIKELY. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING NORTH. SHOWERS AND
THUNDERSTORMS. WAVES 2 TO 4 FT.
.SUNDAY NIGHT...NORTH WINDS TO 30 KT INCREASING TO GALES TO 40 KT
OVERNIGHT. SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE
EVENING...THEN SHOWERS AND RAIN OR SNOW OVERNIGHT. WAVES BUILDING
TO 8 TO 12 FT OCCASIONALLY TO 15 FT.
.MONDAY...NORTH GALES TO 35 KT EASING TO 30 KT IN THE AFTERNOON.
RAIN OR SNOW LIKELY IN THE MORNING...THEN RAIN LIKELY IN THE
AFTERNOON. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT.
.MONDAY NIGHT...NORTH WINDS 15 TO 25 KT EASING TO 10 TO 20 KT.
WAVES SUBSIDING TO 7 TO 10 FT OCCASIONALLY TO 13 FT.
.TUESDAY...NORTH WINDS 10 TO 20 KT. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$
LMZ761-120800-
MAFOR 1203/
MICHIGAN NORTH 11510 11900 11210 11226 14236. CHANCE OF
THUNDERSTORMS SATURDAY AFTERNOON AND SATURDAY EVENING. WAVES 1 TO
3 FT TONIGHT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT SATURDAY.

MICHIGAN SOUTH 11410 11310 11210 11320 11330 12440 11449. CHANCE
OF SHOWERS AND THUNDERSTORMS SATURDAY AFTERNOON. WAVES 1 TO 3 FT
TONIGHT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT SATURDAY AND
TO 4 TO 6 FT OCCASIONALLY TO 8 FT SATURDAY EVENING.

$$





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