Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 300149
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
849 PM 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 30.6 INCHES IS OVER HUDSON BAY WITH
RIDGING EXTENDING SOUTH INTO THE EASTERN GREAT LAKES. LOW
PRESSURE OF 29.6 INCHES OVER EASTERN KANSAS WILL MOVE NORTHEAST
TO NORTHERN MISSOURI BY THURSDAY MORNING...AND THEN TO NEAR LAKE
ERIE FRIDAY AFTERNOON. 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 TEXAS SUNDAY NIGHT TO THE MID ATLANTIC COAST
BY TUESDAY.

LMZ261-362-364-366-563-565-567-868-300800-
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-
849 PM CDT WED MAR 29 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...NORTHEAST WINDS 10 TO 20 KT BECOMING EAST
15 TO 25 KT. SLIGHT CHANCE OF RAIN SHOWERS THIS EVENING...THEN
CHANCE OF RAIN AND SNOW SHOWERS OVERNIGHT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.THURSDAY...EAST WINDS TO 30 KT BECOMING NORTHEAST. RAIN WITH A
CHANCE OF SNOW. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY NIGHT...NORTHEAST GALES TO 35 KT. RAIN AND SNOW LIKELY
IN THE EVENING...THEN CHANCE OF RAIN AND SNOW OVERNIGHT. WAVES
6 TO 9 FT OCCASIONALLY TO 11 FT.
.FRIDAY...NORTHEAST GALES TO 35 KT. WAVES 6 TO 9 FT OCCASIONALLY
TO 11 FT.
.FRIDAY NIGHT...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20
KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 2 TO 4 FT.
.SATURDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO 15
KT. WAVES 1 TO 3 FT.
.SATURDAY NIGHT...NORTH WINDS 5 TO 10 KT BECOMING NORTHEAST.
WAVES 1 FT OR LESS.
.SUNDAY...EAST WINDS 5 TO 10 KT BECOMING SOUTHEAST. WAVES 1 FT
OR LESS.
.MONDAY...EAST WINDS 10 TO 20 KT. WAVES 1 TO 2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-300800-
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-
849 PM CDT WED MAR 29 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...NORTHEAST WINDS TO 30 KT BECOMING EAST. RAIN.
SLIGHT CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT.
.THURSDAY...EAST WINDS TO 30 KT. OCCASIONAL GALE FORCE GUSTS TO
35 KT POSSIBLE. RAIN. CHANCE OF THUNDERSTORMS. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT.
.THURSDAY NIGHT...NORTHEAST WINDS TO 30 KT. RAIN LIKELY. CHANCE
OF THUNDERSTORMS IN THE EVENING. WAVES 6 TO 9 FT OCCASIONALLY TO
11 FT.
.FRIDAY...NORTH WINDS TO 30 KT. OCCASIONAL GALE FORCE GUSTS TO
35 KT POSSIBLE. CHANCE OF RAIN AND SNOW IN THE MORNING. WAVES 6
TO 9 FT OCCASIONALLY TO 11 FT.
.FRIDAY NIGHT...NORTH WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT
OVERNIGHT. WAVES 5 TO 8 FT OCCASIONALLY TO 10 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 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
.SATURDAY NIGHT...NORTH WINDS 5 TO 10 KT BECOMING NORTHEAST.
WAVES 1 TO 2 FT.
.SUNDAY...EAST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 1 TO 2 FT.
.MONDAY...EAST WINDS 10 TO 20 KT BECOMING NORTHEAST. CHANCE OF
RAIN. WAVES 1 TO 3 FT.

$$
LMZ761-300800-
MAFOR 3003/
MICHIGAN NORTH 11120 11230 11237 13246 11147 11157. CHANCE OF
RAIN AND SNOW SHOWERS OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT TONIGHT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT THURSDAY.

MICHIGAN SOUTH 11146 15246 11146. CHANCE OF THUNDERSTORMS
THURSDAY. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT BUILDING TO 6 TO 9
FT OCCASIONALLY TO 11 FT TONIGHT AND TO 7 TO 10 FT OCCASIONALLY
TO 13 FT THURSDAY.

$$

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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