Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 310249
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
849 PM CST FRI JAN 30 2015

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...A LARGE RIDGE OF HIGH PRESSURE OF 30.5 INCHES
CENTERED OVER THE OHIO VALLEY THIS EVENING...WILL MOVE TO THE
CAROLINA COAST SATURDAY NIGHT AS IT WEAKENS TO 30.3 INCHES. WEAK
LOW PRESSURE OF 30.0 INCHES OVER NORTHERN ONTARIO WILL MOVE TO
NEAR LAKE ONTARIO BY SATURDAY EVENING. A TRAILING COLD FRONT
WILL MOVE ACROSS THE LAKE SATURDAY AFTERNOON. WEAK LOW PRESSURE
WILL DEVELOP OVER THE CENTRAL PLAINS SATURDAY NIGHT THEN DEEPEN
TO 29.4 INCHES AS IT REACHES THE MID ATLANTIC MONDAY MORNING. A
LARGE AREA OF HIGH PRESSURE IS EXPECTED TO BUILD OUT OF CENTRAL
CANADA SUNDAY MORNING AND SPREAD ACROSS THE CENTRAL PLAINS SUNDAY
AND THEN ACROSS THE SOUTHERN LAKES AND OHIO VALLEY MONDAY.

LMZ261-362-364-366-563-565-567-669-868-870-310900-
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 SHEBOYGAN TO PORT WASHINGTON WI 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-
849 PM CST FRI JAN 30 2015

PORT WASHINGTON WI TO WHITEHALL MI NORTH

.REST OF TONIGHT...SOUTHWEST WINDS 10 TO 15 KT INCREASING TO 10
TO 20 KT. CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES 1 TO 3 FT
BUILDING TO 2 TO 4 FT.
.SATURDAY...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST EARLY IN
THE AFTERNOON...THEN NORTH 15 TO 25 KT LATE. CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY NIGHT...NORTHEAST WINDS 20 TO 25 KT. CHANCE OF SNOW.
WAVES BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT.
.SUNDAY...NORTHEAST WINDS TO 30 KT. CHANCE OF SNOW IN THE
MORNING...THEN SNOW IN THE AFTERNOON. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT BUILDING TO 8 TO 12 FT OCCASIONALLY TO 15
FT IN THE AFTERNOON.
.SUNDAY NIGHT...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT
AFTER MIDNIGHT. CHANCE OF SNOW. WAVES 10 TO 14 FT OCCASIONALLY
TO 18 FT.
.MONDAY...NORTHWEST WINDS 10 TO 20 KT BECOMING WEST. CHANCE OF
SNOW SHOWERS IN THE MORNING...THEN SLIGHT CHANCE OF SNOW SHOWERS
IN THE AFTERNOON. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT IN THE AFTERNOON.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW
SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO
7 FT OCCASIONALLY TO 9 FT OVERNIGHT.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KT. SNOW SHOWERS LIKELY.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.

$$

LMZ080-671-673-675-777-779-872-874-876-878-310900-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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 CST FRI JAN 30 2015

PORT WASHINGTON WI TO WHITEHALL MI SOUTH

...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY
EVENING...

.REST OF TONIGHT...SOUTHWEST WINDS 10 TO 15 KT INCREASING TO 10
TO 20 KT. WAVES 2 TO 4 FT.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST 10 TO 20 KT
EARLY IN THE AFTERNOON...THEN NORTHWEST 10 TO 15 KT LATE. SLIGHT
CHANCE OF SNOW. WAVES BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST AND
INCREASING TO 30 KT LATE. CHANCE OF SNOW IN THE EVENING...THEN
SNOW OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO
6 TO 9 FT OCCASIONALLY TO 11 FT OVERNIGHT.
.SUNDAY...NORTHEAST WINDS TO 30 KT INCREASING TO GALES TO 35 KT
IN THE AFTERNOON. SNOW. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT
BUILDING TO 10 TO 14 FT OCCASIONALLY TO 18 FT IN THE AFTERNOON.
.SUNDAY NIGHT...NORTHEAST GALES TO 35 KT DIMINISHING TO 30 KT IN
THE EVENING. SNOW SHOWERS LIKELY. WAVES 10 TO 14 FT OCCASIONALLY
TO 18 FT.
.MONDAY...NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO 15 KT
IN THE AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES 9 TO 13 FT
OCCASIONALLY TO 16 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT
IN THE AFTERNOON.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW
SHOWERS. WAVES 2 TO 4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO
9 FT OVERNIGHT.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.

$$
LMZ761-310900-
MAFOR 3104/
MICHIGAN NORTH 11510 12520 12620 11720 11830 11130. CHANCE OF
SNOW SHOWERS. WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT TONIGHT AND
TO 4 TO 6 FT OCCASIONALLY TO 8 FT SATURDAY.

MICHIGAN SOUTH 11510 12520 12530 11620 11710 11820. CHANCE OF
SNOW SATURDAY EVENING. WAVES 2 TO 4 FT TONIGHT...BUILDING TO 4
TO 6 FT OCCASIONALLY TO 8 FT SATURDAY...THEN SUBSIDING TO 3 TO
5 FT OCCASIONALLY TO 7 FT SATURDAY EVENING.

$$




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