Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 282055
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
255 PM 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 EASTERN GREAT LAKES THIS AFTERNOON WILL MOVE EASTWARD
TO THE ATLANTIC COAST BY THURSDAY MORNING. MEANWHILE...LOW
PRESSURE OF 29.7 INCHES ACROSS THE CENTRAL MISSOURI VALLEY WILL
BROADEN SOME AS IT MOVES TO THE UPPER MISSISSIPPI RIVER VALLEY
TONIGHT AND OVER LAKE MICHIGAN BY EARLY FRIDAY MORNING. 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.


LMZ261-362-364-366-563-565-567-868-290430-
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-
255 PM CST WED JAN 28 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE THURSDAY NIGHT...

.TONIGHT...SOUTH WINDS 20 TO 25 KT INCREASING TO 30 KT BY EARLY
EVENING...THEN DIMINISHING TO 15 TO 25 KT LATE. SNOW AND SLEET
LIKELY...MAINLY AFTER MIDNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9
FT BUILDING TO 8 TO 11 FT OCCASIONALLY TO 14 FT.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KT VEERING TO NORTHWEST
15 TO 25 KT LATE IN THE MORNING...THEN INCREASING TO GALES TO 40
KT EARLY IN THE AFTERNOON. SNOW LIKELY IN THE MORNING...THEN
CHANCE OF SNOW SHOWERS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN
THE AFTERNOON. WAVES 8 TO 12 FT OCCASIONALLY TO 15 FT.
.THURSDAY NIGHT...NORTH GALES TO 40 KT DIMINISHING TO 30 KT LATE.
HEAVY FREEZING SPRAY. CHANCE OF SNOW SHOWERS. WAVES 10 TO 14 FT
OCCASIONALLY TO 18 FT.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT
IN THE AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 4 TO
6 FT OCCASIONALLY TO 8 FT IN THE AFTERNOON.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST OVERNIGHT.
SLIGHT CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FT.
.SATURDAY...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST. SLIGHT
CHANCE OF SNOW. WAVES 2 TO 4 FT.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KT. SLIGHT CHANCE OF SNOW.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT OVERNIGHT.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KT. CHANCE OF SNOW. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT.
.MONDAY...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-290430-
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-
255 PM CST WED JAN 28 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.TONIGHT...SOUTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT 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 5 TO 8 FT OCCASIONALLY TO 10 FT BUILDING TO 8 TO
11 FT OCCASIONALLY TO 14 FT.
.THURSDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING NORTHWEST LATE
IN THE MORNING...THEN INCREASING TO GALES TO 40 KT IN THE
AFTERNOON. SNOW LIKELY WITH A CHANCE OF RAIN OR LIGHT SLEET IN
THE MORNING...THEN CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES
8 TO 12 FT OCCASIONALLY TO 15 FT.
.THURSDAY NIGHT...NORTH GALES TO 35 KT DIMINISHING TO 30 KT LATE.
FREEZING SPRAY. SNOW SHOWERS LIKELY. 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 IN THE AFTERNOON.
.FRIDAY NIGHT...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO
20 KT OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING
TO 2 TO 4 FT OVERNIGHT.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST 10 TO 20 KT
IN THE AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KT BECOMING NORTHEAST.
CHANCE OF SNOW. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO
4 TO 7 FT OCCASIONALLY TO 9 FT OVERNIGHT.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KT. SNOW LIKELY. WAVES 5 TO
8 FT OCCASIONALLY TO 10 FT.
.MONDAY...NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT IN
THE AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.

$$

LMZ761-290430-
MAFOR 2822/
MICHIGAN NORTH...GALE WARNING IN EFFECT...
10430 12440 12447 11427 11537 19637 11747 19757 11750.  FREEZING
SPRAY THURSDAY AFTERNOON. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
BUILDING TO 8 TO 11 FT OCCASIONALLY TO 14 FT TONIGHT...AND TO 8
TO 12 FT OCCASIONALLY TO 15 FT THURSDAY.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...
11440 12440 19450 11446 11437 11537 19637 11740 19750 11750. WAVES
5 TO 8 FT OCCASIONALLY TO 10 FT BUILDING TO 8 TO 11 FT
OCCASIONALLY TO 14 FT TONIGHT...AND TO 8 TO 12 FT OCCASIONALLY TO
15 FT THURSDAY.

$$

KJB





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