Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 250125
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
825 PM CDT TUE MAR 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 OF 29.6 INCHES OVER THE NORTHERN PLAINS WILL MOVE
EAST THROUGH THE UPPER MIDWEST TONIGHT WHILE A SECOND LOW
PRESSURE SYSTEM OF 29.7 INCHES OVER THE CENTRAL PLAINS LIFTS
NORTHEAST TO SOUTHERN LAKE MICHIGAN. THESE TWO LOW PRESSURE
SYSTEMS WILL MERGE WEDNESDAY...THEN MOVE NORTHEAST TO QUEBEC
WEDNESDAY NIGHT. ANOTHER AREA OF LOW PRESSURE OF 29.7 INCHES OVER
THE SOUTHERN PLAINS WILL LIFT NORTHEAST THROUGH THE MID
MISSISSIPPI AND OHIO VALLEYS WEDNESDAY NIGHT INTO THURSDAY...THEN
TO NEW ENGLAND THURSDAY EVENING. HIGH PRESSURE OF 30.5 INCHES WILL
THEN MOVE FROM CENTRAL CANADA TO THE WESTERN GREAT LAKES THROUGH
LATE WEEK.

LMZ261-362-364-366-563-565-567-868-250930-
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-
825 PM CDT TUE MAR 24 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TONIGHT...EAST 10 TO 20 KT INCREASING TO 15 TO 25 KT. SLIGHT
SNOW OR RAIN OVERNIGHT. WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.WEDNESDAY...SOUTHEAST WINDS 15 TO 25 KT BECOMING SOUTH LATE IN
THE MORNING...THEN BECOMING SOUTHWEST TO 30 KT IN THE AFTERNOON.
RAIN IN THE MORNING. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.WEDNESDAY NIGHT...SOUTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT LATE IN THE EVENING...THEN BECOMING NORTHWEST 10 TO 20 KT
LATE. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY...NORTH WINDS 15 TO 25 KT INCREASING TO 30 KT. CHANCE
OF RAIN AND SNOW SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
.THURSDAY NIGHT...NORTH WINDS TO 30 KT. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT.
.FRIDAY...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT. WAVES
7 TO 10 FT OCCASIONALLY TO 13 FT.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO
5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...NORTHWEST WINDS 5 TO 10 KT BECOMING SOUTHWEST 10 TO
20 KT IN THE AFTERNOON. WAVES 2 TO 4 FT.
.SUNDAY...SOUTHWEST GALES TO 35 KT DIMINISHING TO 30 KT IN THE
AFTERNOON. RAIN OR SNOW LIKELY. WAVES 8 TO 11 FT OCCASIONALLY TO
14 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-250930-
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-
825 PM CDT TUE MAR 24 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TONIGHT...EAST WINDS 10 TO 20 KT BECOMING SOUTHEAST TO 30 KT
LATE THIS EVENING...THEN BECOMING SOUTH 15 TO 25 KT LATE. A FEW
GALE FORCE GUSTS TO 35 KT POSSIBLE. RAIN AND ISOLATED
THUNDERSTORMS DEVELOPING. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST 15 TO
25 KT. CHANCE OF RAIN EARLY IN THE MORNING. WAVES 5 TO 8 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY NIGHT...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST 15
TO 25 KT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KT BECOMING NORTH TO 30 KT.
CHANCE OF SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING
TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY NIGHT...NORTH WINDS TO 30 KT. CHANCE OF SNOW AND
SHOWERS IN THE EVENING...THEN CHANCE OF SNOW SHOWERS OVERNIGHT.
WAVES BUILDING TO 7 TO 10 FT OCCASIONALLY TO 13 FT.
.FRIDAY...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT. WAVES
7 TO 10 FT OCCASIONALLY TO 13 FT.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO
7 FT OCCASIONALLY TO 9 FT.
.SATURDAY...NORTH WINDS 10 TO 15 KT BACKING TO SOUTHWEST. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO 3 FT.
.SUNDAY...SOUTHWEST GALES TO 35 KT DIMINISHING TO 30 KT IN THE
AFTERNOON. CHANCE OF RAIN OR SNOW. WAVES 8 TO 11 FT OCCASIONALLY
TO 14 FT.

$$
LMZ761-250930-
MAFOR 2504/
MICHIGAN NORTH 11220 12237 11337 11437 13540. WAVES 2 TO 4 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT OVERNIGHT AND
CONTINUING WEDNESDAY.

MICHIGAN SOUTH 10220 12347 19357 11437 12520 13630. WAVES 3 TO 5
FT OCCASIONALLY TO 7 FT BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11
FT...SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT WEDNESDAY.

$$


IZZI


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