Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 241440
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
840 AM CST WED DEC 24 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 29.5 INCHES OVER SOUTHERN INDIANA
WILL MOVE INTO NORTHWEST OHIO WITH A PRESSURE OF 29.2 INCHES BY
LATE AFTERNOON. THE LOW WILL THEN REACH GEORGIAN BAY EARLY TONIGHT
WITH A PRESSURE OF 28.9 INCHES. HIGH PRESSURE WILL MOVE ALONG THE
GULF COAST INTO THURSDAY WITH A RIDGE AXIS AVERAGING ABOUT 30.0
INCHES CROSSING LAKE MICHIGAN. THE HIGH WILL THEN SHIFT EAST WITH
WEAK LOW PRESSURE STRETCHING FROM THE TEXAS PANHANDLE TO LAKE
SUPERIOR BY FRIDAY...BEFORE A MORE CONSOLIDATED SURFACE LOW MOVES
ACROSS THE WESTERN LAKES OVER THE WEEKEND.

LMZ261-362-364-366-563-565-567-868-242100-
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-
840 AM CST WED DEC 24 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

...GALE WARNING IN EFFECT FROM 3 PM CST THIS AFTERNOON THROUGH
LATE TONIGHT...

.REST OF TODAY...NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH TO 30
KT LATE. OCCASIONAL GALES TO 35 KT LATE. CHANCE OF RAIN THROUGH
MID MORNING...THEN RAIN WITH SNOW LIKELY THIS AFTERNOON. WAVES 1
TO 2 FT BUILDING TO 3 TO 6 FT OCCASIONALLY TO 8 FT THIS AFTERNOON.
.TONIGHT...NORTHWEST GALES TO 35 KT. SNOW IN THE EVENING...THEN
CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES 7 TO 10 FT OCCASIONALLY TO
13 FT.
.THURSDAY...WEST WINDS TO 30 KT BECOMING SOUTHWEST 15 TO 25 KT.
SLIGHT CHANCE OF DRIZZLE OR FLURRIES IN THE MORNING. WAVES 6 TO 9
FT OCCASIONALLY TO 11 FT SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7
FT IN THE AFTERNOON.
.THURSDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KT. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST. CHANCE
OF RAIN OR SNOW. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KT. SNOW SHOWERS LIKELY.
WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT IN THE AFTERNOON.
.SUNDAY...NORTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SNOW
SHOWERS. WAVES 2 TO 4 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-242100-
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-
840 AM CST WED DEC 24 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

...GALE WARNING IN EFFECT FROM 3 PM CST THIS AFTERNOON THROUGH
LATE TONIGHT...

.REST OF TODAY...NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH AND
INCREASING TO 30 KT THIS AFTERNOON. OCCASIONAL GALES TO 35 KT LATE
THIS AFTERNOON. RAIN AND SNOW. WAVES 1 TO 3 FT BUILDING TO 4 TO 6
FT OCCASIONALLY TO 8 FT THIS AFTERNOON.
.TONIGHT...NORTHWEST GALES TO 35 KT BECOMING WEST TO 30 KT LATE.
SNOW IN THE EVENING...THEN CHANCE OF SNOW SHOWERS OVERNIGHT.
WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
.THURSDAY...SOUTHWEST WINDS 20 TO 25 KT. SLIGHT CHANCE OF DRIZZLE
OR FLURRIES IN THE MORNING. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT IN THE AFTERNOON.
.THURSDAY NIGHT...SOUTH WINDS 20 TO 25 KT. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT OVERNIGHT.
.FRIDAY...SOUTH WINDS 15 TO 25 KT. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT.
.FRIDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT EASING TO 15 TO 20 KT.
CHANCE OF RAIN OR DRIZZLE OR SNOW. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT.
.SATURDAY...WEST WINDS 15 TO 25 KT. CHANCE OF RAIN OR SNOW. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY...NORTHWEST WINDS 10 TO 15 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.

$$
LMZ761-242100-
MAFOR 2416/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11120 11137 11847 13757
11750 11640. CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES 1 TO 2 FT
BUILDING TO 3 TO 6 FT OCCASIONALLY TO 8 FT THIS AFTERNOON AND TO 7
TO 10 FT OCCASIONALLY TO 13 FT TONIGHT.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...11126 11137 11847 13757
11640 11540. CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES 1 TO 3 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT THIS AFTERNOON AND TO
7 TO 10 FT OCCASIONALLY TO 13 FT TONIGHT.

$$





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