Great Lakes Forecast
Issued by NWS

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411
FZUS63 KLOT 151950
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
250 PM CDT FRI MAY 15 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 WEAKENING 29.9 INCH LOW IS FILLING JUST NORTH OF
LAKE MICHIGAN THIS AFTERNOON...WHILE A 29.7 INCH LOW IS IN PLACE
ACROSS THE FRONT RANGE OF THE ROCKIES. THIS LOW WILL DEEPEN TO
29.5 INCHES AS IT LIFTS ACROSS THE DAKOTAS SATURDAY NIGHT. THE LOW
WILL MOVE EAST ACROSS LAKE SUPERIOR ON MONDAY DRAGGING A COLD
FRONT ACROSS LAKE MICHIGAN. A 30.5 INCH HIGH WILL BUILD ACROSS THE
CANADIAN PRAIRIES MONDAY...THEN EXTENDING INTO THE UPPER MIDWEST
AND WESTERN GREAT LAKES BY MIDWEEK.

LMZ261-362-364-366-563-565-567-868-160330-
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 PM CDT FRI MAY 15 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TONIGHT...VARIABLE WINDS LESS THAN 10 KT BECOMING SOUTHEAST.
AREAS OF DENSE FOG. WAVES 1 TO 2 FT.
.SATURDAY...EAST WINDS 5 TO 10 KT BECOMING NORTHEAST. AREAS OF
DENSE FOG. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 TO 2 FT.
.SATURDAY NIGHT...EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST.
AREAS OF DENSE FOG. WAVES 1 TO 2 FT.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH. AREAS OF
DENSE FOG. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY NIGHT...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. AREAS OF DENSE FOG. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST 15 TO
25 KT. WAVES 2 TO 4 FT.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KT BECOMING NORTH. WAVES 3 TO
5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO
20 KT. WAVES 2 TO 4 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-160330-
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 PM CDT FRI MAY 15 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TONIGHT...SOUTH WINDS LESS THAN 10 KT BECOMING SOUTHEAST. AREAS
OF DENSE FOG. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
OVERNIGHT. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHEAST WINDS AROUND 10 KT. AREAS OF DENSE FOG.
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTH
10 TO 20 KT. AREAS OF DENSE FOG. WAVES 1 TO 3 FT.
.SUNDAY...SOUTH WINDS 10 TO 20 KT. AREAS OF DENSE FOG. CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 2 TO 4 FT
BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY NIGHT...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. AREAS OF
DENSE FOG. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST. WAVES
2 TO 4 FT.
.TUESDAY...NORTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.WEDNESDAY...NORTH WINDS 10 TO 15 KT BECOMING WEST. WAVES 1 TO
3 FT.

$$

LMZ761-160330-
MAFOR 1522/
MICHIGAN NORTH 12903 13304 13204. WAVES 1 TO 2 FT.

MICHIGAN SOUTH 11403 15304 11314. CHANCE OF SHOWERS AND
THUNDERSTORMS SATURDAY. WAVES 1 TO 2 FT.

$$

BMD



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