Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 221947
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
247 PM CDT SUN MAR 22 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 CENTERED OVER NORTHERN MANITOBA AND ONTARIO
EXTENDS SOUTHEAST INTO THE LOWER GREAT LAKES LATE THIS AFTERNOON.
THE HIGH WILL SHIFT SOUTHEAST MONDAY AND BE CENTERED OVER LAKE
ONTARIO AND THE ST. LAWRENCE VALLEY TUESDAY. THE HIGH WILL THEN
CONTINUE EAST AND OFF THE EAST COAST. LOW PRESSURE WILL DEVELOP IN
THE LEE OF THE ROCKIES TUESDAY THEN DEEPEN TO AROUND 29.4 INCHES AS
IT MOVES NORTHEAST ACROSS IOWA TUESDAY NIGHT AND ACROSS NORTHERN
LAKE MICHIGAN WEDNESDAY MORNING. THE LOW WILL THEN WEAKEN AS IT
MOVES INTO SOUTHERN QUEBEC THURSDAY MORNING. A SECOND LOW WILL THEN
MOVE NORTHEAST ACROSS THE OHIO VALLEY AND INTO NORTHERN NEW ENGLAND
THURSDAY. STRONG HIGH PRESSURE WILL THEN MOVE SOUTH FROM THE
CANADIAN PRAIRIES INTO THE CENTRAL PLAINS AND MID MISSISSIPPI RIVER
VALLEY INTO THE WEEKEND.

LMZ261-362-364-366-563-565-567-868-230345-
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-
247 PM CDT SUN MAR 22 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

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


$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-230345-
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-
247 PM CDT SUN MAR 22 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

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

$$

LMZ761-230345-
MAFOR 2222/
MICHIGAN NORTH 11720 11820 11120 12110 12210 11110. WAVES 2 TO 4
FT.

MICHIGAN SOUTH 14120 14220. CHANCE OF FLURRIES THIS EVENING THEN
A CHANCE OF SNOW OVERNIGHT AND MONDAY MORNING. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT TONIGHT SUBSIDING TO 1 TO 3 FT MONDAY.

$$


MDB


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