Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 231948
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
248 PM CDT MON MAR 23 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...HIGH PRESSURE OF 30.5 INCHES OVER EASTERN ONTARIO AND
MUCH OF THE GREAT LAKES WILL MOVE SOUTHEAST TO NEW ENGLAND BY
TUESDAY EVENING. LOW PRESSURE WILL BE DEVELOPING ACROSS THE HIGH
PLAINS INTO TUESDAY WITH ONE LOW OF 29.5 INCHES MOVING INTO THE
DAKOTAS AND MINNESOTA INTO WEDNESDAY WHILE ANOTHER LOW OF AROUND
29.7 INCHES MOVES ACROSS CENTRAL OR SOUTHERN LAKE MICHIGAN EARLY
WEDNESDAY. A COLD FRONT WILL CROSS THE LAKE LATER WEDNESDAY WHILE
HIGH PRESSURE OF 30.5 INCHES MOVES FROM CENTRAL CANADA TO THE
WESTERN GREAT LAKES THROUGH LATE WEEK.

LMZ261-362-364-366-563-565-567-868-240345-
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-
248 PM CDT MON MAR 23 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TONIGHT...NORTHEAST WINDS 10 TO 20 KT VEERING TO SOUTHEAST 10 TO
15 KT. WAVES 1 TO 3 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHEAST 10 TO
15 KT. WAVES 1 TO 3 FT.
.TUESDAY NIGHT...EAST WINDS 10 TO 20 KT INCREASING TO 20 TO 25 KT.
CHANCE OF FREEZING RAIN IN THE EVENING...THEN FREEZING RAIN AND
SHOWERS OVERNIGHT. WAVES 1 TO 3 FT BUILDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST. RAIN IN
THE MORNING...THEN CHANCE OF SHOWERS IN THE AFTERNOON. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO
7 FT.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING
NORTHWEST. CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FT.
.THURSDAY...NORTH WINDS 10 TO 20 KT INCREASING TO 30 KT IN THE
AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FT BUILDING TO
3 TO 5 FT OCCASIONALLY TO 7 FT.
.THURSDAY NIGHT...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.FRIDAY...NORTH WINDS 15 TO 25 KT. WAVES 5 TO 8 FT OCCASIONALLY
TO 10 FT SUBSIDING TO 3 YO 5 FT OCCASIONALLY TO 7 FT OVERNIGHT.
.SATURDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO
20 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.


$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-240345-
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-
248 PM CDT MON MAR 23 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TONIGHT...NORTHEAST WINDS 10 TO 15 KT VEERING TO SOUTHEAST 10 TO
20 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.TUESDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KT INCREASING TO 30 KT
LATE IN THE EVENING...THEN BECOMING SOUTH LATE. SHOWERS WITH
POSSIBLE FREEZING RAIN AND THUNDERSTORMS LIKELY. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
.WEDNESDAY...SOUTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 20 KT
THROUGH THE AFTERNOON. CHANCE OF RAIN IN THE MORNING. WAVES 5 TO
8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO
7 FT.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KT. CHANCE OF RAIN AND
SNOW SHOWERS. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KT BECOMING NORTH TO 30 KT.
CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.THURSDAY NIGHT...NORTH WINDS TO 30 KT. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.FRIDAY...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 20 KT
OVERNIGHT. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT SUBSIDING TO 3
TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING WEST 10 TO
20 KT. WAVES SUBSIDING TO 2 TO 4 FT.

$$

LMZ761-240345-
MAFOR 2322/
MICHIGAN NORTH 11210 12120 11210 11310 12420 11310. WAVES 1 TO 3
FT.

MICHIGAN SOUTH 11120 19210 12110 11220 14320. WAVES 2 TO 4 FT
SUBSIDING TO 1 TO 3 FT TONIGHT. WAVES 2 TO 4 FT TUESDAY.

$$

MDB


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