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NWS Forecast

FZUS63 KLOT 011946
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
246 PM CDT SUN MAY 1 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
HIGH PRESSURE OF 30.5 INCHES OVER NORTHERN QUEBEC WILL
CONTINUE TO DRIFT EAST TONIGHT AS AN AREA OF LOW PRESSURE OF 29.9
INCHES OVER THE MIDDLE MISSISSIPPI VALLEY MOVES ACROSS SOUTHERN
ILLINOIS AND INDIANA. THIS LOW WILL CONTINUE TO THE UPPER OHIO
RIVER VALLEY EARLY TOMORROW MORNING BEFORE EVENTUALLY MOVING OFF
OF THE NEW ENGLAND COAST TOMORROW NIGHT. BEHIND THE LOW...WEAK
HIGH PRESSURE RIDGING OF 30.0 INCHES WILL SETTLE ACROSS THE GREAT
LAKES REGION...BEFORE WEAKENING TO 29.9 INCHES ACROSS THE OHIO
VALLEY TUESDAY. LOW PRESSURE OF 29.6 INCHES WILL PUSH SOUTHEAST
ACROSS THE UPPER GREAT LAKES TUESDAY NIGHT WITH A COLD FRONT
PUSHING SOUTH OF LAKE MICHIGAN EARLY WEDNESDAY. THE LOW WILL
EVENTUALLY MERGE WITH ANOTHER LOW OFF THE MID ATLANTIC COAST
WEDNESDAY NIGHT...WHILE HIGH PRESSURE OF 30.2 INCHES PUSHES SOUTH
ACROSS THE PLAINS AND UPPER MIDWEST. THE HIGH WILL SPREAD ACROSS
THE MISSISSIPPI VALLEY BY EARLY FRIDAY...WITH WEAKER RIDGING
EXTENDING INTO THE WESTERN LAKES.

LMZ261-362-364-366-563-565-567-868-020330-
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-
246 PM CDT SUN MAY 1 2016

SHEBOYGAN WI TO PENTWATER MI NORTH

TONIGHT
NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH. WAVES 2 TO
4 FT.

MONDAY
NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO 15 KT.
WAVES 1 TO 3 FT.

MONDAY NIGHT
NORTHWEST WINDS 5 TO 10 KT BACKING TO SOUTHWEST
10 TO 15 KT. WAVES 1 TO 2 FT.

TUESDAY
SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
CHANCE OF SHOWERS IN THE AFTERNOON. WAVES 2 TO 4 FT.

TUESDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT VEERING TO NORTH
15 TO 25 KT. SHOWERS LIKELY IN THE EVENING...THEN CHANCE OF
SHOWERS OVERNIGHT. WAVES 2 TO 4 FT.

WEDNESDAY
NORTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS IN THE
MORNING. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

WEDNESDAY NIGHT
NORTH WINDS 15 TO 25 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.

THURSDAY
NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.

FRIDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST 10 TO 15 KT.
WAVES 1 TO 2 FT. 



LMZ080-669-671-673-675-777-779-870-872-874-876-878-020330-
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-
246 PM CDT SUN MAY 1 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH

TONIGHT
NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH. CHANCE OF
SHOWERS. WAVES 2 TO 4 FT.

MONDAY
NORTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.

MONDAY NIGHT
NORTH WINDS 10 TO 15 KT BECOMING NORTHWEST 5 TO
10 KT. WAVES 1 TO 3 FT SUBSIDING TO 1 TO 2 FT.

TUESDAY
WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO 20 KT.
WAVES 1 TO 2 FT BUILDING TO 1 TO 3 FT.

TUESDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST 15 TO
25 KT. CHANCE OF SHOWERS IN THE EVENING...THEN SHOWERS LIKELY
OVERNIGHT. WAVES 2 TO 4 FT.

WEDNESDAY
NORTH WINDS 15 TO 25 KT INCREASING TO 30 KT. CHANCE
OF SHOWERS IN THE MORNING. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.

WEDNESDAY NIGHT
NORTH WINDS TO 30 KT. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.

THURSDAY
NORTH WINDS 15 TO 25 KT. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT.

FRIDAY
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST. WAVES 1 TO
2 FT. 



LMZ761-020330-
MAFOR 0121/
MICHIGAN NORTH 12120 13820 13810. WAVES 2 TO 4 FT TONIGHT. WAVES
1 TO 3 FT MONDAY.

MICHIGAN SOUTH 12120 15820. CHANCE OF RAIN SHOWERS EARLY THIS
EVENING. WAVES 2 TO 4 FT.



KREIN