Great Lakes Forecast
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000
FZUS63 KLOT 200113
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
813 PM CDT MON SEP 19 2016

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...HIGH PRESSURE OF 30.0 INCHES OVER THE OHIO VALLEY WILL
REMAIN IN PLACE INTO TUESDAY. LOW PRESSURE OF 29.2 INCHES IS OVER
NORTHWEST HUDSON BAY...WITH AN ASSOCIATED COLD FRONT EXTENDING
SOUTHWEST TO A WEAKER LOW OF 29.9 INCHES OVER SOUTHERN IOWA. THE COLD
FRONT WILL MOVE ACROSS LAKE MICHIGAN TONIGHT AND DISSIPATE
TUESDAY AS HIGH PRESSURE ACROSS THE MIDDLE AND UPPER MISSISSIPPI
VALLEY MERGES WITH THE HIGH PRESSURE OVER THE OHIO VALLEY. WEAK
HIGH PRESSURE WILL SPREAD EAST ACROSS THE GREAT LAKES TO NEW
ENGLAND BY WEDNESDAY. ANOTHER LOW IS EXPECTED TO DEVELOP OVER THE
CENTRAL PLAINS BY MID WEEK...WITH A WARM FRONT EXTENDING EAST
ACROSS THE UPPER MIDWEST.

LMZ261-362-364-366-563-565-567-868-200930-
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-
813 PM CDT MON SEP 19 2016

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST
10 TO 20 KT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TUESDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES 2 TO
4 FT.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH 10 TO
15 KT. WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHEAST. CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 15 KT. SHOWERS LIKELY. WAVES
1 TO 3 FT.
.THURSDAY...SOUTHEAST WINDS 10 TO 20 KT BACKING TO NORTHEAST
10 TO 15 KT. CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
.THURSDAY NIGHT...NORTHEAST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KT. CHANCE OF SHOWERS. WAVES
2 TO 4 FT.
.SATURDAY...NORTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-200930-
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-
813 PM CDT MON SEP 19 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...SOUTH WINDS 10 TO 20 KT QUICKLY BECOMING
NORTHWEST...THEN VEERING TO NORTH 10 TO 15 KT. CHANCE OF SHOWERS
AND THUNDERSTORMS THIS EVENING. WAVES 2 TO 4 FT SUBSIDING TO 1 TO
2 FT.
.TUESDAY...NORTHEAST WINDS 10 TO 15 KT VEERING TO SOUTHEAST 5 TO
10 KT. WAVES 1 TO 3 FT.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 2 TO 4 FT.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.THURSDAY...SOUTH WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 3 FT.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KT BECOMING EAST 10 TO
15 KT. CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
.FRIDAY...NORTHEAST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
.SATURDAY...EAST WINDS 10 TO 20 KT BECOMING NORTHEAST. WAVES 2 TO
4 FT.

$$
LMZ761-200930-
MAFOR 2003/
MICHIGAN NORTH 11530 14620 13520. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT TONIGHT. WAVES 2 TO 4 FT TUESDAY AND TUESDAY EVENING.

MICHIGAN SOUTH 10820 11720 11710 12810 11210 13300. WAVES 2 TO 4
FT OVERNIGHT. WAVES 1 TO 3 FT TUESDAY AND TUESDAY EVENING.

$$

KMD

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE (ALL LOWER CASE)

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)



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