Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 241452
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
852 AM CST SAT JAN 24 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 29.2 INCHES OVER NORTHERN QUEBEC WILL
MERGE WITH ANOTHER STRONG AREA OF LOW PRESSURE OVER THE CANADIAN
MARITIMES TONIGHT. MEANWHILE...AN ASSOCIATED COLD FRONT CURRENTLY
ACROSS THE UPPER GREAT LAKES...WILL MOVE SOUTH DOWN LAKE MICHIGAN.
HIGH PRESSURE OF 30.2 INCHES WILL MOVE INTO NORTHWEST ONTARIO
BEHIND THE FRONT. ANOTHER LOW OF 29.7 INCHES WILL DROP QUICKLY
SOUTHEAST FROM THE NORTHERN PLAINS TO WESTERN ILLINOIS BY SUNDAY
MORNING...DEEPENING SLIGHTLY TO 29.6 INCHES AS IT CONTINUES TO
MOVE RAPIDLY SOUTHEAST OF THE OHIO RIVER BY SUNDAY EVENING. WEAK
HIGH PRESSURE RIDGING AVERAGING 30.2 INCHES WILL SPREAD ACROSS THE
WESTERN LAKES SUNDAY NIGHT...BEFORE A SLOWLY FILLING LOW OF 29.5
INCHES APPROACHES THE NORTHERN AND WESTERN GREAT LAKES EARLY
MONDAY.

LMZ261-362-364-366-563-565-242230-
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-
852 AM CST SAT JAN 24 2015

TWO RIVERS WI TO MANISTEE MI NORTH

.REST OF TODAY...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST BY
EARLY AFTERNOON...THEN BECOMING NORTH 15 TO 25 KT LATE. CHANCE OF
SNOW SHOWERS. WAVES 2 TO 4 FT.
.TONIGHT...NORTHEAST WINDS 15 TO 25 KT INCREASING TO 30 KT LATE.
SLIGHT CHANCE OF SNOW OVERNIGHT. WAVES 3 TO 6 FT OCCASIONALLY TO 8
FT.
.SUNDAY...NORTHEAST WINDS TO 30 KT EASING TO 15 TO 25 KT LATE.
CHANCE OF SNOW IN THE MORNING...THEN SLIGHT CHANCE OF SNOW IN THE
AFTERNOON. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.SUNDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT BECOMING SOUTHEAST 10
TO 15 KT OVERNIGHT. WAVES SUBSIDING TO 2 TO 4 FT.
.MONDAY...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT IN
THE AFTERNOON. SLIGHT CHANCE OF SNOW IN THE AFTERNOON. WAVES 1 TO
3 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT IN THE AFTERNOON.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHEAST 10 TO
15 KT OVERNIGHT. CHANCE OF SNOW. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT.
.TUESDAY...EAST WINDS 10 TO 15 KT BECOMING SOUTH IN THE
AFTERNOON. SLIGHT CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-242230-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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 PENTWATER TO MANISTEE MI 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-
852 AM CST SAT JAN 24 2015

TWO RIVERS WI TO MANISTEE MI SOUTH

.REST OF TODAY...WEST WINDS 15 TO 20 KT BECOMING NORTHWEST AND
DIMINISHING TO 10 TO 20 KT BY EARLY AFTERNOON. CHANCE OF SNOW
SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5
FT OCCASIONALLY TO 7 FT.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KT BECOMING NORTH LATE IN THE
EVENING...THEN BECOMING NORTHEAST AFTER MIDNIGHT AND INCREASING
TO 30 KT TOWARD MORNING. CHANCE OF SNOW. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.SUNDAY...NORTHEAST WINDS TO 30 KT. A FEW GALE FORCE GUSTS TO 35
KT POSSIBLE. SNOW LIKELY IN THE MORNING...THEN CHANCE OF SNOW IN
THE AFTERNOON. WAVES BUILDING TO 7 TO 10 FT OCCASIONALLY TO 13 FT
IN THE AFTERNOON.
.SUNDAY NIGHT...NORTHEAST WINDS TO 30 KT EARLY BECOMING EAST 10
TO 15 KT OVERNIGHT. CHANCE OF SNOW SHOWERS IN THE EVENING...THEN
SLIGHT CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT
OVERNIGHT.
.MONDAY...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT IN
THE AFTERNOON. SLIGHT CHANCE OF SNOW IN THE AFTERNOON. WAVES 2 TO
4 FT.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KT BECOMING WEST 10 TO 15 KT
OVERNIGHT. CHANCE OF SNOW. WAVES 2 TO 4 FT.
.TUESDAY...NORTH WINDS 10 TO 15 KT. SLIGHT CHANCE OF SNOW
SHOWERS. WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH 15 TO
25 KT IN THE AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

$$
LMZ761-242230-
MAFOR 2416/
MICHIGAN NORTH 11620 11720 11830 13130 12140. CHANCE OF SNOW.
WAVES 2 TO 4 FT THIS AFTERNOON...BUILDING TO 3 TO 6 FT
OCCASIONALLY TO 8 FT TONIGHT...AND TO 4 TO 7 FT OCCASIONALLY TO 9
FT SUNDAY MORNING.

MICHIGAN SOUTH 11620 13720 11820 11130 11140 11147. CHANCE OF SNOW
TONIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5
FT OCCASIONALLY TO 7 FT THIS AFTERNOON AND TONIGHT...THEN BUILDING
TO 4 TO 7 FT OCCASIONALLY TO 9 FT SUNDAY MORNING.

$$

KJB





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