Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 171927
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
227 PM CDT FRI OCT 17 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...LOW PRESSURE OF 29.2 INCHES LIES JUST SOUTH OF JAMES
BAY WHILE HIGH PRESSURE OF 30.4 INCHES IS CENTERED OVER NORTHERN
MANITOBA. THE HIGH WILL BUILD SOUTH TOWARDS THE OHIO VALLEY OVER
THE WEEKEND WHILE ANOTHER LOW OF 29.7 INCHES MOVES OVER MANITOBA.
THIS LOW WILL MOVE OVER LAKE MICHIGAN ON MONDAY. ANOTHER HIGH OF
30.3 INCHES WILL BUILD OVER THE ONTARIO AND SLOWLY SHIFT EAST INTO
QUEBEC THROUGH THE MIDDLE OF NEXT WEEK WITH RIDGING INFLUENCING
THE GREAT LAKES.

LMZ261-362-364-366-563-565-567-868-180430-
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-
227 PM CDT FRI OCT 17 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

...GALE WARNING IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH
SATURDAY AFTERNOON...

.TONIGHT...NORTHWEST WINDS TO 30 KT INCREASING TO GALES TO 35 KT
THEN BECOMING NORTH. SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
BUILDING TO 8 TO 12 FT OCCASIONALLY TO 15 FT.
.SATURDAY...NORTH GALES TO 35 KT DIMINISHING TO 30 KT. SCATTERED
SHOWERS IN THE MORNING. WAVES 8 TO 12 FT OCCASIONALLY TO 15 FT.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KT BECOMING NORTHWEST
10 TO 15 KT OVERNIGHT. WAVES SUBSIDING TO 4 TO 7 FT OCCASIONALLY
TO 9 FT OVERNIGHT.
.SUNDAY...WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST 15 TO 20 KT IN
THE AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON. WAVES
2 TO 4 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT. SHOWERS LIKELY.
WAVES BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT FROM LATE
EVENING ON.
.MONDAY...WEST WINDS 10 TO 15 KT BECOMING NORTHWEST 10 TO 20 KT.
CHANCE OF SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING
TO 1 TO 3 FT LATE.
.MONDAY NIGHT...NORTH WINDS 15 TO 25 KT. SLIGHT CHANCE OF
SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.WEDNESDAY...SOUTHEAST WINDS 5 TO 10 KT. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-180430-
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-
227 PM CDT FRI OCT 17 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

...GALE WARNING IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH
SATURDAY AFTERNOON...

.TONIGHT...NORTHWEST WINDS TO 30 KT INCREASING TO GALES TO 35 KT.
SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT BUILDING TO 8 TO 12
FT OCCASIONALLY TO 15 FT.
.SATURDAY...NORTH GALES TO 35 KT EASING TO 30 KT. SHOWERS IN THE
MORNING...THEN ISOLATED SHOWERS IN THE AFTERNOON. WAVES 8 TO 12
FT OCCASIONALLY TO 15 FT.
.SATURDAY NIGHT...NORTH WINDS 15 TO 20 KT BECOMING NORTHWEST LESS
THAN 10 KT LATE. WAVES SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8
FT.
.SUNDAY...SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 15 TO 20 KT IN
THE AFTERNOON. WAVES 2 TO 4 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT. CHANCE OF SHOWERS.
WAVES BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT FROM LATE
EVENING ON.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING NORTHWEST 10 TO
20 KT. CHANCE OF SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.MONDAY NIGHT...NORTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT OVERNIGHT.
.TUESDAY...NORTH WINDS 15 TO 25 KT. WAVES 3 TO 5 FT OCCASIONALLY
TO 7 FT.
.WEDNESDAY...EAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.

$$

LMZ761-180430-
MAFOR 1721/
MICHIGAN NORTH...GALE WARNING IN EFFECT...
11746 11756 13856 12850 11840. SCATTERED RAIN SHOWERS SATURDAY.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT BUILDING TO 8 TO 12 FT
OCCASIONALLY TO 15 FT TONIGHT AND CONTINUING SATURDAY.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...
11740 14756 12856 11840.  WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
BUILDING TO 8 TO 12 FT OCCASIONALLY TO 15 FT TONIGHT AND
CONTINUING SATURDAY.

$$

BMD





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