Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 022039
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
239 PM CST MON MAR 2 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...LARGE HIGH PRESSURE OF 30.5 INCHES OVER THE SOUTHERN
LAKES AND OHIO VALLEY WILL MOVE EAST TO NEW ENGLAND AND THE MID
ATLANTIC TUESDAY MORNING. LOW PRESSURE OF 29.5 INCHES WILL DEVELOP
WITHIN A TROUGH OVER EASTERN NEBRASKA TONIGHT. THIS LOW WILL
WEAKEN BRIEFLY AS IT MOVES NORTHEAST ACROSS WISCONSIN AND NORTHERN
LAKE MICHIGAN ON TUESDAY...BEFORE DEEPENING AGAIN AND EVENTUALLY
MERGING WITH ANOTHER LOW AT 29.1 INCHES NEAR JAMES BAY BY
WEDNESDAY MORNING. HIGH PRESSURE OF 30.5 INCHES WILL SLOWLY BUILD
SOUTHEAST ACROSS THE NORTHERN PLAINS AND EVENTUALLY INTO THE LOWER
OHIO VALLEY THROUGH THURSDAY. THE HIGH WILL DRIFT SOUTHEAST OF THE
OHIO RIVER FRIDAY WHILE A TROUGH OF LOW PRESSURE AVERAGING 30.1
INCHES MOVES ACROSS ONTARIO AND THE NORTHERN LAKES.

LMZ261-362-364-366-563-565-567-868-030300-
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-
239 PM CST MON MAR 2 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TONIGHT...SOUTH WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT.
CHANCE OF SNOW OVERNIGHT. WAVES 1 TO 2 FT BUILDING TO 2 TO 4 FT.
.TUESDAY...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST. SNOW. WAVES
BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT.
.TUESDAY NIGHT...WEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.WEDNESDAY...WEST WINDS TO 30 KT. FREEZING SPRAY. CHANCE OF SNOW
SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10
TO 20 KT. CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.THURSDAY...WEST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT OCCASIONALLY
TO 7 FT.
.THURSDAY NIGHT...SOUTHWEST WINDS INCREASING TO 15 TO 25 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.FRIDAY...SOUTHWEST WINDS TO 30 KT. SLIGHT CHANCE OF SNOW
SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.SATURDAY...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST. SLIGHT
CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

WAVE FORECAST IS FOR ICE FREE AREAS.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-030300-
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-
239 PM CST MON MAR 2 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TONIGHT...SOUTH WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT.
CHANCE OF SNOW OVERNIGHT. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT OVERNIGHT.
.TUESDAY...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST LATE. A FEW
GALE FORCE GUSTS TO 35 KT POSSIBLE. SNOW...MIXING WITH FREEZING
RAIN AND SLEET. CHANCE OF RAIN IN THE AFTERNOON. WAVES BUILDING
TO 7 TO 10 FT OCCASIONALLY TO 13 FT.
.TUESDAY NIGHT...WEST WINDS TO 30 KT BECOMING NORTHWEST. CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 5 TO 8 FT OCCASIONALLY TO 10
FT.
.WEDNESDAY...WEST WINDS TO 30 KT. FREEZING SPRAY. SLIGHT CHANCE
OF SNOW SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.WEDNESDAY NIGHT...NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT OVERNIGHT. CHANCE OF SNOW SHOWERS. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.THURSDAY...WEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.FRIDAY...SOUTHWEST WINDS TO 30 KT. SLIGHT CHANCE OF SNOW
SHOWERS. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT.
.SATURDAY...WEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
SLIGHT CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7
FT.

WAVE FORECAST IS FOR ICE FREE AREAS.

$$

LMZ761-030300-
MAFOR 0222/
MICHIGAN NORTH 12410 11420 12430 12447 11547. WAVES 1 TO 2 FT
BUILDING TO 2 TO 4 TONIGHT AND TO 6 TO 9 FT OCCASIONALLY TO 11
FT TUESDAY.

MICHIGAN SOUTH 11410 12420 12430 12447 11547. CHANCE OF SNOW
LATE TONIGHT. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT OCCASIONALLY
TO 7 FT OVERNIGHT AND TO 7 TO 10 FT OCCASIONALLY TO 13 FT
TUESDAY.

$$




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