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NWS Forecast

FZUS63 KLOT 181327
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
827 AM CDT FRI APR 18 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
HIGH PRESSURE OF 30.4 INCHES...CENTERED OVER THE
MISSISSIPPI RIVER VALLEY EARLY THIS MORNING...WILL BUILD OVER THE
LAKES REGION TODAY. LOW PRESSURE OF 29.7 INCHES WILL MOVE FROM
NORTH DAKOTA SATURDAY MORNING TO NORTHERN ONTARIO BY SUNDAY
AFTERNOON. THIS WILL STEER A COLD FRONT INTO THE NORTHERN HALF OF
THE LAKE...WHICH WILL STALL THROUGH MONDAY MORNING. LOW PRESSURE
OF 29.7 INCHES WILL MOVE ACROSS THE SOUTHERN GREAT LAKES ON MONDAY
AFTERNOON GUIDING THE FRONT EASTWARD AND TURNING WINDS NORTHERLY
ACROSS THE LAKE.

LMZ261-362-364-366-563-565-567-868-182145-
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-
827 AM CDT FRI APR 18 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

REST OF TODAY
NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH IN THE
AFTERNOON. WAVES 1 TO 2 FT.

TONIGHT
NORTHEAST WINDS 10 TO 15 KT BECOMING EAST LATE. WAVES
1 TO 2 FT.

SATURDAY
SOUTHEAST WINDS 10 TO 15 KT INCREASING TO 15 TO 20 KT.
SLIGHT CHANCE OF RAIN IN THE AFTERNOON. WAVES 1 TO 3 FT.

SATURDAY NIGHT
SOUTH WINDS 20 TO 25 KT. RAIN...MAINLY
OVERNIGHT. WAVES BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.

SUNDAY
SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT
IN THE AFTERNOON. RAIN LIKELY...MAINLY IN THE MORNING. WAVES 5 TO
8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 2 TO 4 FT LATE.

SUNDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KT BACKING TO NORTHEAST.
CHANCE OF SHOWERS. WAVES 1 TO 3 FT.

MONDAY
NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH. CHANCE OF
SHOWERS. WAVES 1 TO 3 FT.

TUESDAY
NORTH WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. 

WAVE FORECAST IS FOR ICE FREE AREAS



LMZ080-669-671-673-675-777-779-870-872-874-876-878-182145-
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-
827 AM CDT FRI APR 18 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

REST OF TODAY
NORTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT BUILDING
TO 2 TO 4 FT.

TONIGHT
NORTHEAST WINDS 10 TO 20 KT BECOMING EAST AFTER
MIDNIGHT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.

SATURDAY
EAST WINDS 10 TO 20 KT BECOMING SOUTHEAST FROM LATE
MORNING ON. WAVES 1 TO 3 FT.

SATURDAY NIGHT
SOUTHEAST WINDS 15 TO 25 KT BECOMING SOUTH FROM
LATE EVENING ON. SLIGHT CHANCE OF RAIN OVERNIGHT. WAVES BUILDING
TO 3 TO 5 FT OCCASIONALLY TO 7 FT.

SUNDAY
SOUTH WINDS 15 TO 25 KT. CHANCE OF RAIN...MAINLY IN THE
MORNING. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS. WAVES
1 TO 3 FT.

MONDAY
SOUTHWEST WINDS 10 TO 20 KT BECOMING NORTHWEST BY MONDAY
NIGHT. CHANCE OF SHOWERS. WAVES 1 TO 3 FT.

TUESDAY
NORTH WINDS 15 TO 20 KT. WAVES 1 TO 3 FT.

WAVE FORECAST IS FOR ICE FREE AREAS


LMZ761-182145-
MAFOR 1815/
MICHIGAN NORTH 12710 11810 13110 11210 11310. WAVES 1 TO 2 FT.

MICHIGAN SOUTH 10810 13820 12120 13220. WAVES 1 TO 3 FT BUILDING
TO 2 TO 4 FT THIS AFTERNOON AND TONIGHT...THEN SUBSIDING TO 1 TO 3
FT BY SATURDAY MORNING.



KJB