Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 281447
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
847 AM CST WED JAN 28 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 30.4 INCHES CENTERED OVER THE OHIO
VALLEY AND CENTRAL GREAT LAKES THIS MORNING WILL MOVE EASTWARD
TO THE ATLANTIC COAST BY THURSDAY MORNING. MEANWHILE...LOW
PRESSURE OF 29.7 INCHES ACROSS THE NORTHERN PLAINS THIS MORNING
WILL BROADEN SOME AS IT MOVES TO THE UPPER MISSISSIPPI RIVER
VALLEY BY THIS EVENING AND OVER LAKE MICHIGAN LATE TONIGHT. THIS
LOW WILL THEN BEGIN TO CONSOLIDATE AND DEEPEN TO 29.6 INCHES ON
THURSDAY AS IT MOVES TO THE EASTERN GREAT LAKES. STRONG CANADIAN
HIGH PRESSURE OF 30.6 INCHES WILL BUILD INTO THE GREAT LAKES BY
FRIDAY AFTERNOON. ANOTHER COLD FRONT WILL SAG SOUTHWARD ACROSS THE
LAKE ON SATURDAY AFTERNOON AND NIGHT BRINGING A PERIOD OF
NORTHERLY WINDS FOR THE LATTER HALF OF THE WEEKEND INTO EARLY NEXT
WEEK.

LMZ261-362-364-366-563-565-282315-
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-
847 AM CST WED JAN 28 2015

TWO RIVERS WI TO MANISTEE MI NORTH

...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...

.REST OF TODAY...SOUTH WINDS 10 TO 20 KT INCREASING TO 30 KT THIS
AFTERNOON. CHANCE OF SNOW THIS AFTERNOON. WAVES 2 TO 4 FT BUILDING
TO 4 TO 7 FT OCCASIONALLY TO 9 FT BY LATE THIS AFTERNOON.
.TONIGHT...SOUTH WINDS TO 30 KT BECOMING SOUTHWEST 15 TO 25 KT LATE.
SNOW AND SLEET LIKELY...MAINLY AFTER MIDNIGHT. WAVES BUILDING TO
7 TO 10 FT OCCASIONALLY TO 13 FT BY LATE EVENING.
.THURSDAY...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST TO 30 KT
LATE IN THE MORNING...THEN INCREASING TO GALES TO 40 KT EARLY IN
THE AFTERNOON. SNOW LIKELY. WAVES 8 TO 11 FT OCCASIONALLY TO 14
FT IN THE AFTERNOON.
.THURSDAY NIGHT...NORTH GALES TO 40 KT EASING TO 30 KT LATE.
FREEZING SPRAY LIKELY. CHANCE OF SNOW SHOWERS. WAVES 8 TO 12 FT
OCCASIONALLY TO 15 FT.
.FRIDAY...NORTH WINDS 10 TO 20 KT BECOMING WEST 10 TO 15 KT IN
THE AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 4 TO 6
FT OCCASIONALLY TO 8 FT.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. SLIGHT
CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FT OVERNIGHT.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING NORTH 15 TO 25 KT
SATURDAY NIGHT. CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KT. CHANCE OF SNOW. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-282315-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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 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-
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-
847 AM CST WED JAN 28 2015

TWO RIVERS WI TO MANISTEE MI SOUTH

...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...

.REST OF TODAY...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT
BY MIDDAY...THEN TO 30 KT THIS AFTERNOON. WAVES 2 TO 4 FT
BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT THIS AFTERNOON.
.TONIGHT...SOUTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT AND
BECOMING SOUTHWEST LATE. OCCASIONAL GALE FORCE GUSTS TO 35 KT
THIS EVENING. CHANCE OF RAIN OR DRIZZLE LATE THIS EVENING...THEN A
WINTRY MIX LIKELY AFTER MIDNIGHT. WAVES BUILDING TO 8 TO 11 FT
OCCASIONALLY TO 14 FT THIS EVENING.
.THURSDAY...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST TO 30 KT
LATE IN THE MORNING...THEN INCREASING TO GALES TO 40 KT EARLY IN
THE AFTERNOON. WINTRY MIX LIKELY IN THE MORNING WITH A CHANCE OF
SNOW SHOWERS IN THE AFTERNOON. WAVES 8 TO 11 FT OCCASIONALLY TO
14 FT.
.THURSDAY NIGHT...NORTHWEST GALES TO 40 KT BECOMING NORTH GALES TO
35 KT LATE IN THE EVENING...THEN EASING TO 15 TO 25 KT LATE.
FREEZING SPRAY LIKELY. CHANCE OF SNOW SHOWERS. WAVES 10 TO 14 FT
OCCASIONALLY TO 18 FT.
.FRIDAY...NORTH WINDS 15 TO 25 KT BECOMING NORTHWEST 10 TO 15 KT
IN THE AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 6 TO
9 FT OCCASIONALLY TO 11 FT.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT. WAVES SUBSIDING TO 2
TO 4 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 15 TO 25
KT...THEN BECOMING SOUTHEAST DURING SATURDAY NIGHT. SLIGHT CHANCE
OF SNOW SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY...EAST WINDS 15 TO 25 KT BECOMING NORTHEAST TO 30 KT.
CHANCE OF SNOW. WAVES BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.

$$
LMZ761-282315-
MAFOR 2816/
MICHIGAN NORTH 11420 11430 19440 13440 11447 11537 11627. WAVES 2
TO 4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT THIS
AFTERNOON...AND TO 7 TO 10 FT OCCASIONALLY TO 13 FT TONIGHT AND
THURSDAY MORNING.

MICHIGAN SOUTH 11420 19430 11430 19440 11440 12440 19450 11446
11537 11637. WAVES 2 TO 4 FT BUILDING TO 5 TO 8 FT OCCASIONALLY
TO 10 FT THIS AFTERNOON...AND TO 8 TO 11 FT OCCASIONALLY TO 14 FT
TONIGHT AND THURSDAY MORNING.

$$

KJB






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