Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 300803
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
303 AM CDT MON MAR 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 29.3 INCHES ACROSS WESTERN QUEBEC
WILL PULL FURTHER AWAY FROM THE AREA TODAY WHILE A WEAK HIGH
PRESSURE RIDGE OF 30.0 INCHES MOVES OVER THE LAKE DURING MIDDAY.
LOW PRESSURE OF 29.7 INCHES WILL QUICKLY RACE FROM THE UPPER
PLAINS THIS AFTERNOON ACROSS THE FAR SOUTHERN PART OF LAKE
MICHIGAN OVERNIGHT AND TO NEAR LAKE ERIE BY TUESDAY MORNING. A
RIDGE OF HIGH PRESSURE OF 30.1 INCHES WILL THEN MOVE OVER THE LAKE
LATE TUESDAY INTO TUESDAY NIGHT. A LARGE LOW PRESSURE SYSTEM WITH
A CENTRAL PRESSURE NEAR 29.2 INCHES WILL DEVELOP ACROSS SOUTHERN
CANADA WEDNESDAY AFTERNOON AND REACH WESTERN ONTARIO WEDNESDAY
NIGHT. THIS WILL BRING A COLD FRONT ACROSS LAKE EARLY ON THURSDAY.


LMZ261-362-364-366-563-565-567-868-301530-
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-
303 AM CDT MON MAR 30 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...WEST WINDS 10 TO 20 KT BECOMING VARIABLE AROUND 10 KT BY
EARLY AFTERNOON. SLIGHT CHANCE OF SNOW SHOWERS THIS
MORNING...THEN SLIGHT CHANCE OF RAIN LATE THIS AFTERNOON. WAVES 3
TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO 3 FT BY EARLY
AFTERNOON.
.TONIGHT...EAST WINDS 10 TO 15 KT BECOMING NORTHEAST 15 TO 25 KT.
SNOW OR RAIN LIKELY IN THE EVENING...THEN SNOW LIKELY OVERNIGHT.
WAVES 2 TO 4 FT.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH 10 TO
15 KT. CHANCE OF SNOW OR RAIN IN THE MORNING. WAVES 2 TO 4 FT.
.TUESDAY NIGHT...EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST. WAVES
1 TO 3 FT.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KT INCREASING TO 30 KT. WAVES 2
TO 4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.WEDNESDAY NIGHT...SOUTH WINDS TO 30 KT. OCCASIONAL GALE FORCE
GUSTS. CHANCE OF SHOWERS. WAVES BUILDING TO 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.THURSDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST. SHOWERS
LIKELY. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.FRIDAY...NORTH WINDS 15 TO 25 KT. WAVES 2 TO 4 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-301530-
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-
303 AM CDT MON MAR 30 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...WEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT...THEN
BECOMING SOUTHWEST 10 TO 15 KT EARLY THIS AFTERNOON. SLIGHT
CHANCE OF RAIN THIS AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT SUBSIDING TO 1 TO 3 FT.
.TONIGHT...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT...
THEN VEERING TO NORTHWEST AFTER MIDNIGHT. CHANCE OF RAIN IN THE
EVENING...THEN CHANCE OF RAIN OR SNOW OVERNIGHT. WAVES BUILDING
TO 2 TO 4 FT.
.TUESDAY...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
WAVES 2 TO 4 FT.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 15 KT BECOMING EAST. WAVES
1 TO 3 FT.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH 15 TO
25 KT. WAVES BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.WEDNESDAY NIGHT...SOUTH WINDS TO 30 KT. CHANCE OF SHOWERS. WAVES
4 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY...SOUTHWEST WINDS TO 30 KT BECOMING WEST 10 TO 20 KT IN
THE AFTERNOON. SHOWERS LIKELY. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT.
.FRIDAY...NORTH WINDS 15 TO 25 KT. WAVES 3 TO 5 FT OCCASIONALLYTO
7 FT.

$$

LMZ761-301530-
MAFOR 3010/
MICHIGAN NORTH 13620 12900 11210 11227 11137. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO 3 FT BY EARLY AFTERNOON.
WAVES 2 TO 4 FT TONIGHT.

MICHIGAN SOUTH 11630 12620 12510 11420 11430 11530. CHANCE OF
RAIN IN THE EVENING...THEN CHANCE OF RAIN OR SNOW OVERNIGHT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO 3 FT
TODAY. WAVES BUILDING TO 2 TO 4 FT TONIGHT.

$$

MTF


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