Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 140118
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
818 PM CDT MON APR 13 2015

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 AROUND 30.2 INCHES WILL MOVE FROM THE CENTRAL
PLAINS TO THE WESTERN GREAT LAKES BY TUESDAY MORNING. THE HIGH
WILL THEN MERGE WITH ANOTHER HIGH WHICH WILL BE MOVING INTO
ONTARIO FROM THE NORTHWEST WITH THE RESULTANT 30.4 INCH HIGH
STEADILY MOVING EAST ACROSS NEW ENGLAND BY THURSDAY MORNING THEN
OUT TO THE ATLANTIC BY THURSDAY NIGHT. SEVERAL LOW PRESSURE
SYSTEMS LOOK TO MOVE NORTH OF LAKE MICHIGAN THURSDAY AND FRIDAY. A
COLD FRONT WILL MOVE DOWN THE LAKE FRIDAY NIGHT AHEAD OF A 30.2
INCH HIGH THAT WILL BUILD OVER THE LAKE SATURDAY.

LMZ261-362-364-366-563-565-567-868-140930-
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-
818 PM CDT MON APR 13 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TONIGHT...WEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15
KT. WAVES 2 TO 4 FT.
.TUESDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES 1 TO
3 FT.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHEAST. WAVES
1 TO 2 FT.
.WEDNESDAY...SOUTHEAST WINDS 5 TO 10 KT BECOMING EAST. WAVES 1 TO
2 FT.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST.
WAVES 1 TO 3 FT.
.THURSDAY...SOUTHEAST WINDS 5 TO 10 KT BECOMING SOUTH. WAVES 1 TO
2 FT.
.THURSDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
.FRIDAY...SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
WAVES 1 TO 2 FT.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KT BECOMING NORTH 10 TO
15 KT. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-140930-
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-
818 PM CDT MON APR 13 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TONIGHT...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST 10
TO 15 KT OVERNIGHT. WAVES 2 TO 4 FT.
.TUESDAY...NORTHWEST WINDS 5 TO 10 KT BECOMING VARIABLE IN THE
AFTERNOON. WAVES 1 TO 3 FT.
.TUESDAY NIGHT...VARIABLE WINDS 5 TO 10 KT BECOMING EAST IN THE
EVENING. WAVES 1 TO 2 FT.
.WEDNESDAY...EAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
.THURSDAY...SOUTHEAST WINDS 5 TO 10 KT. CHANCE OF SHOWERS. WAVES
1 TO 2 FT.
.THURSDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KT BECOMING WEST. WAVES
1 TO 2 FT.
.FRIDAY...NORTHWEST WINDS 5 TO 10 KT BECOMING SOUTHWEST. WAVES
1 TO 2 FT.
.SATURDAY...NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 1 TO 3 FT.

$$
LMZ761-140930-
MAFOR 1404/
MICHIGAN NORTH 11620 14610 12510 11400. WAVES 2 TO 4 FT
OVERNIGHT...SUBSIDING TO 1 TO 3 FT TUESDAY AND TUESDAY EVENING.

MICHIGAN SOUTH 11620 12710 12700 13900. WAVES 2 TO 4 FT
OVERNIGHT...SUBSIDING TO 1 TO 3 FT TUESDAY AND TUESDAY EVENING.

$$


KJB


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