Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 270750
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
250 AM CDT SAT AUG 27 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...WEAK HIGH PRESSURE OF 30.2 INCHES DRAPED OVER THE GREAT
LAKES WILL MOVE EAST TO NORTHERN NEW ENGLAND TODAY...WHILE WEAK
LOW PRESSURE OF 29.9 INCHES CROSSES CENTRAL LAKE MICHIGAN THIS
AFTERNOON. DEVELOPING LOW PRESSURE OVER THE NORTHERN CANADIAN
ROCKIES WILL MOVE TO NORTH CENTRAL CANADA INTO SUNDAY AT 29.6
INCHES. HIGH PRESSURE OF 30.2 INCHES WILL THEN SPREAD ACROSS THE
GREAT LAKES EARLY NEXT WEEK AS THE CANADIAN LOW CONTINUES EAST TO
NORTHEAST QUEBEC WEDNESDAY. THIS LOW WILL SEND A COLD FRONT ACROSS
THE NORTHERN HALF OF THE LAKE MID WEEK. THE HIGH WILL SHIFT EAST
OF THE LAKE FRIDAY.

LMZ261-362-364-366-563-565-567-868-271530-
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-
250 AM CDT SAT AUG 27 2016

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...SOUTHEAST WINDS 10 TO 15 KT BECOMING EAST. SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 1 TO 3 FT.
.TONIGHT...EAST WINDS 10 TO 20 KT VEERING TO NORTHWEST 10 TO 15
KT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO 3
FT.
.SUNDAY...NORTHWEST WINDS 5 TO 10 KT BECOMING SOUTHWEST. WAVES
1 TO 2 FT.
.SUNDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KT DIMINISHING TO LESS
THAN 10 KT. WAVES 1 FT OR LESS.
.MONDAY...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHWEST. WAVES 1 TO
2 FT.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 3 FT.
.TUESDAY...WEST WINDS 10 TO 15 KT BECOMING NORTHWEST. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.WEDNESDAY...NORTH WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-271530-
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-
250 AM CDT SAT AUG 27 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.
.TONIGHT...SOUTH WINDS 10 TO 20 KT VEERING TO NORTHWEST 10 TO
15 KT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING... THEN
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO
3 FT.
.SUNDAY...NORTHWEST WINDS 5 TO 10 KT BECOMING NORTHEAST. WAVES
1 TO 2 FT.
.SUNDAY NIGHT...NORTHEAST WINDS 5 TO 10 KT BECOMING EAST. WAVES
1 FT OR LESS.
.MONDAY...SOUTHEAST WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
.MONDAY NIGHT...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHWEST. CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.TUESDAY...WEST WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
.WEDNESDAY...NORTH WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 1 TO 3 FT.

$$

LMZ761-271530-
MAFOR 2709/
MICHIGAN NORTH 11310 11319 12219 12210 12710. CHANCE OF SHOWERS
AND THUNDERSTORMS EARLY THIS MORNING. CHANCE OF SHOWERS AND
THUNDERSTORMS LATE TONIGHT. WAVES 1 TO 3 FT.

MICHIGAN SOUTH 11210 11329 11320 13420 11510 11610. CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY THIS MORNING. CHANCE OF SHOWERS
AND THUNDERSTORMS TODAY. CHANCE OF SHOWERS AND THUNDERSTORMS LATE
TONIGHT. WAVES 1 TO 3 FT.

$$


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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