Great Lakes Forecast
Issued by NWS

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251
FZUS63 KLOT 180746
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
246 AM CDT MON MAY 18 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...LOW PRESSURE OF 29.5 INCHES LIES OVER NORTHERN
MINNESOTA THIS MORNING AND WILL MOVE EAST ACROSS LAKE MICHIGAN
TODAY...THEN INTO QUEBEC OVERNIGHT. MEANWHILE...HIGH PRESSURE OF
30.5 INCHES OVER MANITOBA EARLY TODAY WILL BUILD INTO THE NORTHERN
PLAINS TONIGHT...THEN VERY SLOWLY BUILD EAST OVER THE WESTERN
GREAT LAKES BY FRIDAY.

LMZ261-362-364-366-563-565-567-669-868-870-181530-
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 SHEBOYGAN TO PORT WASHINGTON WI 5 NM OFFSHORE
TO MID LAKE-
LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID
LAKE-
246 AM CDT MON MAY 18 2015

PORT WASHINGTON WI TO WHITEHALL MI NORTH

...DENSE FOG ADVISORY IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON...

.TODAY...SOUTHWEST WINDS 15 TO 25 KT EASING TO 10 TO 20 KT. AREAS
OF DENSE FOG. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TONIGHT...WEST WINDS 15 TO 20 KT BECOMING NORTHWEST. WAVES 3 TO
5 FT OCCASIONALLY TO 7 FT.
.TUESDAY...NORTHWEST WINDS TO 30 KT BECOMING NORTH. WAVES 3 TO
5 FT OCCASIONALLY TO 7 FT.
.TUESDAY NIGHT...NORTH WINDS 15 TO 25 KT BECOMING NORTHWEST 10 TO
15 KT OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING
TO 1 TO 3 FT.
.WEDNESDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES
2 TO 4 FT.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST.
WAVES 2 TO 4 FT.
.THURSDAY...WEST WINDS 10 TO 15 KT BECOMING NORTHWEST. WAVES 1 TO
3 FT.
.FRIDAY...NORTH WINDS 10 TO 15 KT BECOMING NORTHEAST. WAVES 1 TO
3 FT.

$$

LMZ080-671-673-675-777-779-872-874-876-878-181530-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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 AM CDT MON MAY 18 2015

PORT WASHINGTON WI TO WHITEHALL MI SOUTH

.TODAY...SOUTHWEST WINDS 10 TO 20 KT EASING TO 10 TO 15 KT. WAVES
2 TO 4 FT.
.TONIGHT...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST 15 TO 25 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KT BECOMING NORTHEAST 10 TO
20 KT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO
4 FT.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.WEDNESDAY...NORTH WINDS 10 TO 15 KT BECOMING NORTHWEST. WAVES 1
TO 3 FT.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.THURSDAY...WEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 1 TO 3 FT.
.FRIDAY...NORTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.

$$

LMZ761-181530-
MAFOR 1810/
MICHIGAN NORTH 12534 11524 12520 13620. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.

MICHIGAN SOUTH 12520 13510 12620 11730. WAVES 2 TO 4 FT TODAY
BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT TONIGHT.

$$

BMD



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