Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 290746
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
246 AM CDT WED MAR 29 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...HIGH PRESSURE OF 30.5 INCHES IS OVER HUDSON BAY WITH
RIDGING EXTENDING INTO THE CENTRAL GREAT LAKES WHICH WILL SHIFT TO
THE EASTERN LAKES TONIGHT. A 29.7 INCH LOW IS OVER OKLAHOMA EARLY
THIS MORNING AND WILL LIFT TO NORTHERN MISSOURI THURSDAY THEN TO
LAKE ERIE ON FRIDAY. A RIDGE AVERAGING 30.2 INCHES WILL BUILD
ACROSS THE CANADIAN PRAIRIES AND UPPER MIDWEST SATURDAY AND WILL
SHIFT TO THE CENTRAL GREAT LAKES ON SUNDAY. ANOTHER LOW OF 29.6
INCHES WILL LIFT FROM ARKANSAS MONDAY TO LAKE ERIE ON TUESDAY.

LMZ261-362-364-366-563-565-567-868-291530-
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-
246 AM CDT WED MAR 29 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING...

.TODAY...NORTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
AREAS OF FOG THIS MORNING. WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT.
.TONIGHT...NORTHEAST WINDS 15 TO 25 KT BECOMING EAST. CHANCE OF
RAIN AND SNOW OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.THURSDAY...EAST WINDS 15 TO 25 KT INCREASING TO 30 KT. RAIN WITH
A CHANCE OF SNOW. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY NIGHT...EAST WINDS TO 30 KT BECOMING NORTHEAST. RAIN
AND SNOW. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.FRIDAY...NORTHEAST WINDS TO 30 KT. CHANCE OF RAIN IN THE
MORNING. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.FRIDAY NIGHT...NORTHEAST WINDS TO 30 KT BECOMING NORTH 10 TO
20 KT OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING
TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO
15 KT. WAVES 1 TO 3 FT.
.SUNDAY...SOUTH WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT. WAVES
1 FT OR LESS.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-291530-
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-
246 AM CDT WED MAR 29 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING...

.TODAY...NORTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WIDESPREAD FOG THIS MORNING. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.TONIGHT...NORTHEAST WINDS 15 TO 25 KT BECOMING EAST TO 30 KT. A
FEW GALE FORCE GUSTS TO 35 KT POSSIBLE AFTER MIDNIGHT. CHANCE OF
RAIN IN THE EVENING...THEN RAIN LIKELY OVERNIGHT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT.
.THURSDAY...EAST WINDS TO 30 KT. A FEW GALE FORCE GUSTS TO 35 KT
IN THE MORNING. RAIN. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
.THURSDAY NIGHT...EAST WINDS TO 30 KT BECOMING NORTHEAST 15 TO
25 KT. RAIN LIKELY IN THE EVENING...THEN CHANCE OF RAIN
OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 4 TO
6 FT OCCASIONALLY TO 8 FT.
.FRIDAY...NORTHEAST WINDS TO 30 KT BECOMING NORTH. CHANCE OF
RAIN. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT BUILDING TO 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.FRIDAY NIGHT...NORTH WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT
OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 4 TO
6 FT OCCASIONALLY TO 8 FT.
.SATURDAY...NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT.
.SUNDAY...EAST WINDS 5 TO 10 KT BECOMING SOUTHEAST 10 TO 15 KT.
WAVES 1 FT OR LESS.

$$

LMZ761-291530-
MAFOR 2909/
MICHIGAN NORTH 12124 11123 13130 12230. CHANCE OF RAIN AND SNOW
OVERNIGHT. WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT TODAY. WAVES 3
TO 5 FT OCCASIONALLY TO 7 FT TONIGHT.


MICHIGAN SOUTH 12124 11123 13130 11240 11246 19256 . CHANCE OF
RAIN THIS EVENING. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT TODAY. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT TONIGHT.

$$

BMD

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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