Great Lakes Forecast
Issued by NWS

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708
FZUS63 KLOT 250152
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
852 PM CDT FRI MAR 24 2017

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 OF THE HIGHEST 1/3 OF THE WAVE, ALONG WITH THE
AVERAGE HEIGHT OF THE HIGHEST 10% OF THE WAVES WHICH WILL
OCCASIONALLY BE ENCOUNTERED.

.SYNOPSIS...A COLD FRONT HAS PUSHED SOUTH OF THE LAKE EARLY THIS
EVENING...AND WILL BECOME STATIONARY OVERNIGHT AS LOW PRESSURE OF
29.5 INCHES OVER THE SOUTHERN PLAINS SLOWLY MOVES EAST. THE LOW
WILL REACH THE MID MISSISSIPPI VALLEY SATURDAY AFTERNOON WHILE
WEAKENING TO 29.7 INCHES. THIS LOW WILL VERY SLOWLY TRACK
NORTHEAST ACROSS NORTHERN ILLINOIS ON SUNDAY AND CENTRAL LAKE
MICHIGAN SUNDAY NIGHT. A SECOND AREA OF LOW PRESSURE OF 29.6
INCHES IS EXPECTED TO DEVELOP OVER THE SOUTH HIGH PLAINS SUNDAY
MORNING TRACK EAST TO THE MIDDLE MISSISSIPPI VALLEY MONDAY
AFTERNOON.

LMZ261-362-364-366-563-565-567-868-250930-
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-
852 PM CDT FRI MAR 24 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...NORTHEAST WINDS TO 30 KT. RAIN SHOWERS LIKELY
ESPECIALLY THIS EVENING. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY...NORTHEAST WINDS TO 30 KT BECOMING EAST. CHANCE OF
RAIN SHOWERS AND SLIGHT CHANCE OF LIGHT FREEZING RAIN IN THE
MORNING...THEN CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
5 TO 8 FT OCCASIONALLY TO 10 FT.
.SATURDAY NIGHT...EAST WINDS TO 30 KT. RAIN. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO
8 FT.
.SUNDAY...EAST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT. RAIN IN
THE MORNING...THEN RAIN LIKELY IN THE AFTERNOON. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO 4 FT.
.SUNDAY NIGHT...NORTHEAST WINDS 10 TO 20 KT BACKING TO NORTHWEST
10 TO 15 KT. RAIN LIKELY IN THE EVENING...THEN CHANCE OF RAIN
OVERNIGHT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
.MONDAY...NORTHWEST WINDS 10 TO 15 KT. CHANCE OF RAIN IN THE
MORNING. WAVES 1 TO 2 FT.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KT. WAVES 1 TO 2 FT BUILDING
TO 2 TO 4 FT.
.TUESDAY...NORTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-250930-
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-
852 PM CDT FRI MAR 24 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...NORTH WINDS TO 30 KT BECOMING NORTHEAST. AREAS
OF FOG. RAIN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS
OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 5 TO
7 FT OCCASIONALLY TO 9 FT.
.SATURDAY...EAST WINDS TO 30 KT. AREAS OF FOG. RAIN SHOWERS.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.SATURDAY NIGHT...EAST WINDS TO 30 KT. AREAS OF FOG. RAIN IN THE
EVENING...THEN RAIN LIKELY OVERNIGHT. WAVES 5 TO 8 FT OCCASIONALLY
TO 10 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.SUNDAY...SOUTHEAST WINDS TO 30 KT BECOMING SOUTH 10 TO 20 KT IN
THE AFTERNOON. AREAS OF FOG. RAIN. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT SUBSIDING TO 2 TO 4 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST. AREAS
OF FOG IN THE EVENING. CHANCE OF RAIN IN THE EVENING. WAVES 1 TO
3 FT.
.MONDAY...WEST WINDS 10 TO 15 KT BECOMING NORTH. CHANCE OF RAIN
IN THE AFTERNOON. WAVES 1 TO 2 FT.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT. CHANCE OF RAIN. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.TUESDAY...NORTH WINDS 15 TO 25 KT. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.

$$
LMZ761-250930-
MAFOR 2503/
MICHIGAN NORTH 12146 12140 13240 11246. CHANCE OF RAIN SHOWERS
SATURDAY. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 6
FT OCCASIONALLY TO 8 FT OVERNIGHT AND TO 5 TO 8 FT OCCASIONALLY
TO 10 FT SATURDAY AND SATURDAY EVENING.


MICHIGAN SOUTH 11846 11146 11136 14246 11256. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT OVERNIGHT BUILDING TO 5 TO 8 FT OCCASIONALLY
TO 10 FT SATURDAY AND SATURDAY EVENING.


$$

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES



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