Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 220840
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
240 AM CST SUN FEB 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...A SPRAWLING AREA OF HIGH PRESSURE OF 31.0 INCHES WILL
MOVE INTO THE NORTHERN PLAINS THIS MORNING...THEN CONTINUE
SOUTHEAST TO THE MIDWEST BY EARLY MONDAY MORNING. THE HIGH WILL
GRADUALLY WEAKEN TO 30.5 INCHES AS IT MOVES SOUTHEASTWARD AND
SHOULD EXTEND FROM THE MID ATLANTIC WEST TO THE SOUTHERN PLAINS BY
TUESDAY MORNING. LOW PRESSURE OF 29.7 INCHES WILL DEVELOP OF
NORTHWEST TERRITORIES OF CANADA TONIGHT THEN MOVE SOUTHEAST TO
ONTARIO BY TUESDAY MORNING...DEEPENING TO 29.3 INCHES ALONG THE
WAY. THE LOW WILL TRACK EAST INTO QUEBEC BY TUESDAY NIGHT WITH A
TRAILING COLD FRONT MOVING SOUTH DOWN THE LAKE LATE TUESDAY
AFTERNOON AND TUESDAY EVENING. ANOTHER LARGE HIGH OF 30.9 INCHES
MOVING SOUTHEAST FROM THE CANADIAN PRAIRIES WEDNESDAY AFTERNOON
INTO THE NORTHERN PLAINS WEDNESDAY NIGHT AND THURSDAY.

LMZ261-362-364-563-221815-
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
240 AM CST SUN FEB 22 2015

STURGEON BAY WI TO POINT BETSIE MI NORTH

...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON...

.TODAY...NORTHWEST WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT
FROM LATE MORNING ON. SCATTERED SNOW SHOWERS. WAVES 2 TO 4 FT.
.TONIGHT...NORTHWEST WINDS DIMINISHING TO 10 TO 15 KT BECOMING
WEST. CHANCE OF SNOW SHOWERS.
.MONDAY...WEST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT LATE
IN THE MORNING...THEN BECOMING SOUTHWEST AND INCREASING TO 30 KT
BY EVENING.
.MONDAY NIGHT...SOUTHWEST GALES TO 40 KT. SNOW SHOWERS LIKELY.
.TUESDAY...SOUTHWEST GALES TO 35 KT BECOMING WEST TO 30 KT IN THE
AFTERNOON. SNOW SHOWERS.
.TUESDAY NIGHT...NORTHWEST WINDS TO 30 KT. SNOW SHOWERS.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
.THURSDAY...NORTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SNOW

WAVES OMITTED DUE TO EXTENSIVE ICE COVERAGE

$$

LMZ366-565-567-669-671-868-870-872-221815-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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 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 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-
240 AM CST SUN FEB 22 2015

STURGEON BAY WI TO POINT BETSIE MI SOUTH TO NORTH POINT LIGHT WI
TO GRAND HAVEN MI

...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON...
...HEAVY FREEZING SPRAY WATCH IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON...

.TODAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST 15 TO 25 KT
FROM LATE MORNING ON. SNOW SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT
LATE. CHANCE OF SNOW SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY TO
9 FT.
.MONDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST 15 TO 25 KT
EARLY IN THE AFTERNOON...THEN INCREASING TO 30 KT LATE. CHANCE OF
SNOW SHOWERS IN THE MORNING. FREEZING SPRAY LATE. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT BUILDING TO 6 TO 9 OCCASIONALLY TO 11 FT LATE.
.MONDAY NIGHT...SOUTHWEST GALES TO 40 KT. HEAVY FREEZING SPRAY.
CHANCE OF SNOW SHOWERS. WAVES 8 TO 12 FT OCCASIONALLY TO 15 FT
BUILDING TO 10 TO 14 FT OCCASIONALLY TO 18 FT OVERNIGHT.
.TUESDAY...SOUTHWEST GALES TO 40 KT BECOMING WEST GALES TO 35 KT.
HEAVY FREEZING SPRAY. CHANCE OF SNOW SHOWERS. WAVES 10 TO 14 FT
OCCASIONALLY TO 18 FT.
.TUESDAY NIGHT...NORTHWEST WINDS TO 30 KT. FREEZING SPRAY. CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 6 TO 9 FT OCCASIONALLY TO 11
FT OVERNIGHT.
.WEDNESDAY...NORTH WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO
15 KT IN THE AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ080-673-675-777-779-874-876-878-221815-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-
240 AM CST SUN FEB 22 2015

NORTH POINT LIGHT WI TO GRAND HAVEN MI SOUTH

...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON...
...HEAVY FREEZING SPRAY WATCH IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON...

.TODAY...NORTHWEST WINDS 15 TO 25 KT INCREASING TO 30 KT THIS
AFTERNOON. SNOW SHOWERS. WAVES 3 TO 6 FT OCCASIONALLY TO 8 FT
BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT THIS AFTERNOON.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KT. SNOW SHOWERS LIKELY.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.MONDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST 15 TO 25 KT
IN THE AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.MONDAY NIGHT...SOUTHWEST WINDS TO 30 KT INCREASING TO GALES TO
40 KT. HEAVY FREEZING SPRAY. CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 8 TO 12 FT OCCASIONALLY TO 15 FT OVERNIGHT.
.TUESDAY...SOUTHWEST GALES TO 40 KT BECOMING WEST. HEAVY FREEZING
SPRAY. CHANCE OF SNOW SHOWERS. WAVES 10 TO 14 FT OCCASIONALLY TO
18 FT.
.TUESDAY NIGHT...WEST WINDS TO 30 KT BECOMING NORTHWEST. FREEZING
SPRAY. CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 6 TO 9 FT
OCCASIONALLY TO 11 FT OVERNIGHT.
.WEDNESDAY...NORTH WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT IN THE
AFTERNOON.
.THURSDAY...NORTH WINDS 10 TO 15 KT BECOMING NORTHWEST. WAVES 2 TO
4 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ761-221815-
MAFOR 2210/
MICHIGAN NORTH 11710 11720 13730 11720 11710 11610. CHANCE OF
SNOW SHOWERS.

MICHIGAN CENTRAL 12827 13737 13730. CHANCE OF SNOW SHOWERS
TONIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.

MICHIGAN SOUTH 13737 12747 13737. WAVES 3 TO 6 FT OCCASIONALLY TO
8 FT BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT THIS AFTERNOON
AND CONTINUING TONIGHT.

$$

IZZI







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