Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 181948
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
248 PM CDT MON AUG 18 2014

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 EASTERN ONTARIO
AND WESTERN QUEBEC WILL STEADILY MOVE EASTWARD THROUGH TONIGHT. LOW
PRESSURE OF AROUND 29.7 INCHES STRETCHED FROM EASTERN MANITOBA TO
EASTERN MINNESOTA SLOWLY MOVES EAST TO LAKE HURON BY WEDNESDAY AND
WEAKENS. WEAK HIGH PRESSURE OF AROUND 30.1 INCHES WILL MOVE ACROSS
LAKE MICHIGAN THROUGH LATE WEEK WHILE A SERIES OF LOW PRESSURE
SYSTEMS MOVE FROM THE CENTRAL HIGH PLAINS NORTHEASTWARD TO TO THE
UPPER MISSISSIPPI RIVER VALLEY AND WESTERN ONTARIO.

LMZ261-362-364-366-563-565-190415-
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-
248 PM CDT MON AUG 18 2014

TWO RIVERS WI TO MANISTEE MI NORTH

.TONIGHT...SOUTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
SHOWERS AND THUNDERSTORMS LIKELY THIS EVENING...THEN SHOWERS AND
THUNDERSTORMS OVERNIGHT. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT AND
BECOMING SOUTHEAST LATE. SHOWERS AND THUNDERSTORMS LIKELY. WAVES
SUBSIDING TO 1 TO 3 FT.
.TUESDAY NIGHT...SOUTH WINDS 10 TO 15 KT VEERING TO NORTH 5 TO
10 KT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING... THEN
CHANCE OF SHOWERS OVERNIGHT. WAVES 1 TO 3 FT.
.WEDNESDAY...NORTHWEST WINDS 5 TO 10 KT BECOMING NORTH. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.WEDNESDAY NIGHT...NORTHEAST WINDS 5 TO 10 KT. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO 2 FT.
.THURSDAY...EAST WINDS 5 TO 10 KT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KT. CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.FRIDAY...EAST WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHEAST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 2 FT.


$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-190415-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 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 PENTWATER TO MANISTEE MI 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-
248 PM CDT MON AUG 18 2014

TWO RIVERS WI TO MANISTEE MI SOUTH

.TONIGHT...SOUTH WINDS 1O TO 20 KT INCREASING TO 15 TO 25 KT.
SHOWERS AND THUNDERSTORMS LIKELY THIS EVENING...THEN SHOWERS AND
THUNDERSTORMS OVERNIGHT. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 15 KT.
SHOWERS AND THUNDERSTORMS LIKELY. WAVES SUBSIDING TO 1 TO 3 FT.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT BECOMING NORTHWEST.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING... THEN SLIGHT
CHANCE OF SHOWERS OVERNIGHT. WAVES 1 TO 3 FT.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING VARIABLE 5 TO 10
KT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KT. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN CHANCE OF SHOWERS
AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO 2 FT.
.THURSDAY...SOUTHEAST WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KT. CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.FRIDAY...SOUTH WINDS 10 TO 15 KT BECOMING SOUTHEAST. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHEAST WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT.

$$

LMZ761-190415-
MAFOR 1821/
MICHIGAN NORTH 11320 11329 13339 19439 12429 11419 19319. WAVES 1
TO 3 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT TONIGHT. WAVES
SUBSIDING TO 1 TO 3 FT TUESDAY.

MICHIGAN SOUTH 10400 11410 12429 12439 11539 11529 11519. WAVES 1
TO 3 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT TONIGHT. WAVES
SUBSIDING TO 1 TO 3 FT TUESDAY.

$$

MDB




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