Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 240759
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
259 AM 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...LOW PRESSURE OF 29.6 INCHES OVER HUDSON BAY WILL
SHIFT TO THE EAST TODAY WHILE A COLD FRONT GRADUALLY SHIFTS SOUTH
DOWN THE LAKE...LIKELY STALLING OUT NEAR THE SOUTHERN END OF THE
LAKE EARLY SATURDAY MORNING. DEVELOPING LOW PRESSURE OF 29.3
INCHES OVER THE CENTRAL PLAINS WILL SLOWLY MOVE EAST TODAY AND
TONIGHT...AND THEN REACH THE MID MISSISSIPPI VALLEY SATURDAY WHILE
WEAKENING TO 29.7 INCHES. THIS LOW WILL CONTINUE TO WEAKEN AS IT
MOVES OVER NORTHERN ILLINOIS SUNDAY. A SECOND AREA OF LOW PRESSURE
AT 29.8 INCHES THEN QUICKLY MOVES NORTHEAST INTO MISSOURI BY
MONDAY MORNING AND THEN TO NORTHERN INDIANA TUESDAY MORNING.

LMZ261-362-364-366-563-565-567-868-241530-
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-
259 AM CDT FRI MAR 24 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST 10 TO 15 KT
THIS MORNING...THEN BECOMING NORTH 15 TO 25 KT THIS AFTERNOON.
RAIN SHOWERS AND SLIGHT CHANCE OF LIGHT FREEZING RAIN THIS
MORNING...THEN RAIN SHOWERS THIS AFTERNOON. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT.
.TONIGHT...NORTHEAST WINDS 15 TO 25 KT INCREASING TO 30 KT. RAIN
SHOWERS WITH POSSIBLE SNOW SHOWERS AND FREEZING RAIN IN THE
EVENING...THEN RAIN SHOWERS, CHANCE OF SNOW SHOWERS AND LIGHT
FREEZING RAIN OVERNIGHT. WAVES BUILDING 4 TO 6 FT OCCASIONALLY TO
8 FT.
.SATURDAY...NORTHEAST WINDS TO 30 KT BECOMING EAST. CHANCE OF
RAIN SHOWERS IN THE MORNING...THEN CHANCE OF RAIN SHOWERS AND
LIGHT FREEZING RAIN IN THE AFTERNOON. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.SATURDAY NIGHT...EAST WINDS TO 30 KT. RAIN SHOWERS WITH A CHANCE
OF LIGHT FREEZING RAIN IN THE EVENING...THEN RAIN SHOWERS AND
LIGHT FREEZING RAIN OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO
9 FT.
.SUNDAY...EAST WINDS 15 TO 25 KT. RAIN SHOWERS LIKELY. WAVES 2 TO
4 FT.
.SUNDAY NIGHT...EAST WINDS 10 TO 20 KT BACKING TO NORTHWEST 10 TO
15 KT. CHANCE OF RAIN SHOWERS AND LIGHT FREEZING RAIN. WAVES 1 TO
3 FT.
.MONDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH. CHANCE OF
LIGHT FREEZING RAIN. WAVES 1 TO 2 FT.
.TUESDAY...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-241530-
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-
259 AM CDT FRI MAR 24 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...SOUTH WINDS 15 TO 25 KT VEERING TO NORTHWEST. OCCASIONAL
GUSTS TO 30 KT. SLIGHT CHANCE OF RAIN SHOWERS. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.TONIGHT...NORTH WINDS 15 TO 25 KT BECOMING NORTHEAST. AREAS OF
FOG. RAIN SHOWERS LIKELY WITH SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING...THEN RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY...EAST WINDS TO 30 KT. AREAS OF FOG. RAIN SHOWERS.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.SATURDAY NIGHT...EAST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT.
AREAS OF FOG. RAIN SHOWERS IN THE EVENING...THEN RAIN SHOWERS
LIKELY OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.SUNDAY...SOUTHEAST WINDS 15 TO 25 KT BECOMING SOUTH 10 TO 15 KT
IN THE AFTERNOON. AREAS OF FOG. RAIN SHOWERS LIKELY IN THE
MORNING...THEN CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO 3 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT BECOMING WEST. AREAS
OF FOG. WAVES 1 TO 2 FT.
.MONDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH. WAVES 1 TO
3 FT.
.TUESDAY...NORTH WINDS 15 TO 25 KT. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT.

$$

LMZ761-241530-
MAFOR 2409/
MICHIGAN NORTH 11426 11516 11616 11826 11836 13136. CHANCE OF
SNOW SHOWERS TONIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
SUBSIDING TO 2 TO 4 FT TODAY. WAVES BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT TONIGHT.

MICHIGAN SOUTH 11430 12530 11540 11730 11836 12136. WAVES 3 TO 5
FT OCCASIONALLY TO 7 FT TODAY. WAVES 4 TO 6 FT OCCASIONALLY TO 8
FT TONIGHT.

$$


RODRIGUEZ

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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