Great Lakes Forecast
Issued by NWS

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693
FZUS63 KLOT 300742
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
242 AM CDT SAT APR 30 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 WILL REMAIN NORTH OF THE
LAKES TODAY. FARTHER SOUTH...LOW PRESSURE OF 29.6 INCHES OVER THE
SOUTHERN PLAINS EARLY THIS MORNING WILL LIFT NORTHEAST ACROSS
MISSOURI TODAY AND EVENTUALLY ACROSS SOUTHEASTERN ILLINOIS TONIGHT
WHILE FILLING TO 29.8 INCHES. THE LOW WILL THEN MOVE ACROSS THE
UPPER OHIO VALLEY BY LATE SUNDAY. HIGH PRESSURE OF 30.2 INCHES
WILL THEN SETTLE ACROSS THE NORTHERN AND CENTRAL GREAT LAKES
REGION ON MONDAY. THE HIGH PRESSURE RIDGE WILL WEAKEN TO 30.0
INCHES ON TUESDAY WHILE PUSHING SOUTH INTO THE OHIO VALLEY. LOW
PRESSURE OF 29.4 INCHES WILL MOVE SOUTHEAST ACROSS ONTARIO INTO
SOUTHWEST QUEBEC TUESDAY NIGHT...AS A TRAILING COLD FRONT PUSHES
SOUTH ACROSS THE WESTERN LAKES.

LMZ261-362-364-366-563-565-567-868-301515-
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-
242 AM CDT SAT APR 30 2016

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...EAST WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO 15 KT
LATE THIS MORNING...THEN INCREASING TO 15 TO 25 KT THIS AFTERNOON.
SLIGHT CHANCE OF SHOWERS THIS AFTERNOON. WAVES 1 TO 2 FT BUILDING
TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TONIGHT...NORTHEAST WINDS 15 TO 25 KT. CHANCE OF SHOWERS. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KT. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT.
.MONDAY...NORTHWEST WINDS 10 TO 15 KT BACKING TO SOUTHWEST. WAVES
1 TO 3 FT.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 10 TO
15 KT. WAVES 1 TO 2 FT.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
.WEDNESDAY...NORTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-301515-
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-
242 AM CDT SAT APR 30 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...EAST WINDS 10 TO 20 KT BECOMING NORTHEAST 15 TO 25 KT.
CHANCE OF SHOWERS THIS MORNING...THEN SHOWERS THIS AFTERNOON.
WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TONIGHT...NORTHEAST WINDS 15 TO 25 KT. SHOWERS IN THE EVENING...
THEN CHANCE OF SHOWERS OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KT BECOMING NORTH. CHANCE OF
SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KT. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO 4 FT.
.MONDAY...NORTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 10 TO
15 KT. WAVES 1 TO 2 FT.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
CHANCE OF SHOWERS LATE. WAVES 1 TO 3 FT.
.WEDNESDAY...NORTH WINDS 10 TO 20 KT. SLIGHT CHANCE OF SHOWERS.
WAVES 2 TO 4 FT.

$$

LMZ761-301515-
MAFOR 3009/
MICHIGAN NORTH 11210 11200 11110 11120 14130. CHANCE OF SHOWERS
TONIGHT. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7
FT TODAY. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT TONIGHT.

MICHIGAN SOUTH 11210 12220 19136 14136 11130. WAVES 2 TO 4 FT
BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT TODAY. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT TONIGHT.

$$



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