Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 301450
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
850 AM 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...LOW PRESSURE OF 29.8 INCHES STRETCHING FROM SOUTHERN
QUEBEC THROUGH EASTERN NEW ENGLAND... WILL MOVE OFF THE ATLANTIC
COAST THIS EVENING AND THEN DEEPEN TO 29.1 INCHES BY SATURDAY
MORNING IN THE GULF OF MAINE. A LARGE RIDGE OF HIGH PRESSURE OF
30.6 INCHES EXTENDING FROM LAKE SUPERIOR TO THE SOUTHERN
PLAINS...WILL SETTLE OVER THE OHIO VALLEY FRIDAY NIGHT. WEAK LOW
PRESSURE OF 30.0 INCHES WILL MOVE ACROSS THE NORTHERN LAKES ON
SATURDAY...DRAGGING A COLD FRONT SOUTH ACROSS THE LAKE SATURDAY
AFTERNOON. A LARGE AREA OF HIGH PRESSURE IS EXPECTED TO BUILD OUT
OF CENTRAL CANADA SUNDAY MORNING AND SPREAD ACROSS THE CENTRAL
PLAINS AND UPPER GREAT LAKES SUNDAY AFTERNOON AND SUNDAY NIGHT
WHILE LOW PRESSURE OF 29.9 INCHES DEVELOPS OVER THE LOWER OHIO
VALLEY AND TRACKS EAST TO THE MID ATLANTIC REGION BY MONDAY
MORNING AND DEEPENS TO 29.5 INCHES.

LMZ261-362-364-366-563-565-567-868-302230-
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-
850 AM CST FRI JAN 30 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TODAY...NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT AND THEN BECOMING WEST THIS AFTERNOON. SCATTERED SNOW
SHOWERS. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT SUBSIDING TO 3 TO
5 FT OCCASIONALLY TO 7 FT LATE THIS AFTERNOON.
.TONIGHT...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO 20 KT
FROM LATE EVENING ON. SCATTERED FLURRIES IN THE EVENING...THEN
CHANCE OF SNOW OVERNIGHT. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT OVERNIGHT.
.SATURDAY...WEST WINDS 15 TO 25 KT VEERING TO NORTHWEST.
SCATTERED SNOW SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY NIGHT...NORTH WINDS TO 30 KT. SLIGHT CHANCE OF SNOW IN
THE EVENING...THEN CHANCE OF SNOW OVERNIGHT. WAVES 6 TO 9 FT
OCCASIONALLY TO 11 FT.
.SUNDAY...NORTHEAST WINDS TO 30 KT. CHANCE OF SNOW. WAVES 7 TO
10 FT OCCASIONALLY TO 13 FT.
.SUNDAY NIGHT...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT
OVERNIGHT. CHANCE OF SNOW SHOWERS. WAVES 7 TO 10 FT OCCASIONALLY
TO 13 FT SUBSIDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT OVERNIGHT.
.MONDAY...NORTHWEST WINDS 15 TO 25 KT BECOMING WEST. SLIGHT
CHANCE OF SNOW SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT IN THE AFTERNOON.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KT. SNOW SHOWERS LIKELY.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-302230-
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-
850 AM CST FRI JAN 30 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TODAY...NORTH WINDS 15 TO 25 KT BECOMING WEST 10 TO 15 KT
LATE. SCATTERED SNOW SHOWERS. WAVES 8 TO 11 FT OCCASIONALLY TO 14
FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT LATE THIS
AFTERNOON.
.TONIGHT...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 15 TO 25 KT.
SCATTERED FLURRIES IN THE EVENING...THEN SLIGHT CHANCE OF SNOW
OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST EARLY IN
THE AFTERNOON...THEN BECOMING NORTHWEST 10 TO 20 KT LATE. ISOLATED
SNOW SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT. CHANCE OF SNOW.
WAVES BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT OVERNIGHT.
.SUNDAY...NORTHEAST WINDS TO 30 KT. SNOW LIKELY. WAVES 8 TO 11 FT
OCCASIONALLY TO 14 FT.
.SUNDAY NIGHT...NORTHEAST WINDS TO 30 KT. CHANCE OF SNOW SHOWERS.
WAVES 8 TO 12 FT OCCASIONALLY TO 15 FT.
.MONDAY...NORTHWEST WINDS 15 TO 25 KT BECOMING WEST. SLIGHT
CHANCE OF SNOW SHOWERS. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT IN THE AFTERNOON.
.TUESDAY...SOUTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT IN
THE AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.

$$
LMZ761-302230-
MAFOR 3016/
MICHIGAN NORTH 11820 11710 12610 13520 11630. CHANCE OF SNOW
SHOWERS. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT SUBSIDING TO 3 TO
5 FT OCCASIONALLY TO 7 FT LATE THIS AFTERNOON. WAVES 2 TO 4 FT
BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT TONIGHT AND TO 4 TO 6
FT OCCASIONALLY TO 8 FT SATURDAY.

MICHIGAN SOUTH 10830 11820 11710 12610 12520 12530. CHANCE OF SNOW.
WAVES 8 TO 11 FT OCCASIONALLY TO 14 FT SUBSIDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT LATE THIS AFTERNOON. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT TONIGHT BUILDING TO 4 TO 7 FT OCCASIONALLY TO
9 FT SATURDAY MORNING.

$$

RC





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