Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 130750
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
250 AM 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...A COLD FRONT EXTENDING SOUTHWARD FROM LOW PRESSURE OVER
HUDSON BAY WILL SWEEP ACROSS LAKE MICHIGAN THIS MORNING AND TURN
WINDS FROM SOUTH TO WEST. HIGH PRESSURE OF AROUND 30.3 INCHES WILL
MOVE FROM THE SOUTHERN HIGH 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
RESULTANT30.4 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 WITH ANOTHER HIGH PRESSURE SYSTEM BUILDING IN FOR
SATURDAY.

LMZ261-362-364-366-563-565-567-868-131530-
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-
250 AM CDT MON APR 13 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTH WINDS 15 TO 25 KT BECOMING WEST BY MIDDAY. CHANCE
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THIS MORNING...THEN
SLIGHT CHANCE OF SHOWERS THIS AFTERNOON. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.TONIGHT...WEST WINDS 10 TO 20 KT. WAVES SUBSIDING TO 2 TO 4 FT.
.TUESDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES 1 TO
3 FT.
.TUESDAY NIGHT...SOUTH WINDS 10 TO 15 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 2 FT.
.THURSDAY...SOUTHEAST WINDS 5 TO 10 KT BECOMING SOUTH. CHANCE OF
SHOWERS. WAVES 1 TO 2 FT.
.FRIDAY...SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
WAVES 1 TO 2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-131530-
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-
250 AM CDT MON APR 13 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...SOUTH WINDS 20 TO 25 KT BECOMING WEST 15 TO 25 KT.
SHOWERS LIKELY WITH SLIGHT CHANCE OF THUNDERSTORMS THIS MORNING.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TONIGHT...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO 15 KT.
WAVES 2 TO 4 FT.
.TUESDAY...NORTHWEST WINDS 5 TO 10 KT BECOMING SOUTHWEST. WAVES
1 TO 3 FT.
.TUESDAY NIGHT...EAST WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
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. CHANCE OF SHOWERS.
WAVES 1 TO 3 FT.
.THURSDAY...SOUTHEAST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
.FRIDAY...NORTHWEST WINDS 5 TO 10 KT BECOMING SOUTHWEST. WAVES
1 TO 2 FT.

$$

LMZ761-131530-
MAFOR 1310/
MICHIGAN NORTH 11436 11536 11530 12630 11520 12620. CHANCE OF
RAIN SHOWERS EARLY THIS MORNING. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT TODAY. WAVES 3
TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT TONIGHT.

MICHIGAN SOUTH 11436 11536 11636 12630 12620 11710. THUNDERSTORMS
POSSIBLE THIS MORNING. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT TODAY
AND 2 TO 4 FT TONIGHT.

$$

MDB


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