Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 120244
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
844 PM CST WED JAN 11 2017

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...LOW PRESSURE OF 28.8 INCHES REMAINS OVER HUDSON
BAY...WITH A TRAILING COLD FRONT EXTENDING THROUGH THE EASTERN
GREAT LAKES TO THE SOUTHERN PLAINS. WHILE THE MAIN LOW WILL
REMAIN NEARLY STATIONARY...THE COLD FRONT WILL PUSH SOUTH INTO
THE OHIO VALLEY BY THURSDAY AFTERNOON AS ANOTHER WEAK LOW OF
29.8 INCHES APPROACHES LAKE SUPERIOR AND STRONG HIGH PRESSURE OF
30.6 INCHES BUILDS IN THE NORTHERN AND CENTRAL PLAINS. THE HIGH
WILL BUILD EAST...BECOMING CENTERED OVER THE GREAT LAKES FRIDAY
EVENING AT 30.9 INCHES. THE CENTER OF THE HIGH WILL PUSH EAST TO
NEW ENGLAND BY SATURDAY AFTERNOON...BUT A RIDGE AXIS WILL STILL
EXTEND WEST ACROSS THE GREAT LAKES...KEEPING HIGH PRESSURE THE
DOMINANT FEATURE OVER THE LAKES INTO EARLY NEXT WEEK. LOW PRESSURE
OF 29.7 INCHES IS EXPECTED TO DEVELOP OVER THE SOUTH HIGH PLAINS
BY SUNDAY NIGHT AND THEN SLOWLY LIFT NORTHEAST TO THE MIDDLE
MISSISSIPPI VALLEY BY MONDAY NIGHT INTO TUESDAY MORNING. THE LOW
MAY TRACK ACROSS LAKE MICHIGAN TUESDAY AFTERNOON OR EVENING.

LMZ261-362-364-366-563-565-120900-
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-
844 PM CST WED JAN 11 2017

TWO RIVERS WI TO MANISTEE MI NORTH...

.REST OF TONIGHT...NORTH WINDS TO 30 KT DIMINISHING TO 10 TO 20
KT. SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE AND SNOW. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT.
.THURSDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST LATE IN
THE MORNING...THEN BECOMING WEST EARLY IN THE AFTERNOON
INCREASING TO 30 KT LATE. CHANCE OF SNOW IN THE MORNING. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT.
.THURSDAY NIGHT...WEST WINDS TO 30 KT BECOMING NORTHWEST.
FREEZING SPRAY. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING
TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 15 KT
IN THE AFTERNOON. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING
TO 1 TO 3 FT.
.FRIDAY NIGHT...WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST 10 TO
20 KT OVERNIGHT. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST. WAVES 1 TO
3 FT.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO
15 KT. WAVES 1 TO 3 FT.
.SUNDAY...WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST 10 TO 15 KT.
WAVES 1 TO 2 FT.
.MONDAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH 5 TO 10 KT.
WAVES 1 TO 3 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-120900-
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-
844 PM CST WED JAN 11 2017

TWO RIVERS WI TO MANISTEE MI SOUTH...

.REST OF TONIGHT...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 25
KT. PATCHY FOG THIS EVENING. RAIN THIS EVENING...CHANCE OF LIGHT
FREEZING DRIZZLE AND RAIN OVERNIGHT. WAVES 5 TO 7 FT OCCASIONALLY
TO 9 FT.
.THURSDAY...NORTH WINDS 15 TO 25 KT BECOMING NORTHWEST TO 30 KT.
CHANCE OF SNOW...LIGHT FREEZING RAIN AND LIGHT FREEZING DRIZZLE
IN THE MORNING. WAVES 5 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY NIGHT...WEST WINDS TO 30 KT BECOMING NORTHWEST.
FREEZING SPRAY. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.FRIDAY...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 15 KT IN
THE AFTERNOON. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO
3 TO 5 FT OCCASIONALLY TO 7 FT.
.FRIDAY NIGHT...EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST. WAVES
2 TO 4 FT.
.SATURDAY...SOUTH WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES
1 TO 2 FT.
.SATURDAY NIGHT...NORTHWEST WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
.SUNDAY...NORTH WINDS LESS THAN 10 KT BECOMING NORTHEAST. WAVES
1 FT OR LESS.
.MONDAY...SOUTHEAST WINDS 10 TO 15 KT BECOMING EAST. CHANCE OF
RAIN AND SNOW. WAVES 1 TO 2 FT.

$$
LMZ761-120900-
MAFOR 1204/
MICHIGAN NORTH 11840 12830 11820 11720 11630 12640. CHANCE OF
SNOW THURSDAY MORNING. FREEZING SPRAY THURSDAY EVENING. WAVES 4
TO 7 FT OCCASIONALLY TO 9 FT TONIGHT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT THURSDAY. WAVES 5 TO 8 FT OCCASIONALLY TO
10 FT THURSDAY EVENING.

MICHIGAN SOUTH 12840 12830 12730 11740 11640. PATCHY FOG THIS
EVENING. RAIN THIS EVENING. CHANCE OF LIGHT FREEZING DRIZZLE AND
RAIN OVERNIGHT. CHANCE OF SNOW...LIGHT FREEZING RAIN AND LIGHT
FREEZING DRIZZLE THURSDAY MORNING. FREEZING SPRAY THURSDAY
EVENING. WAVES 5 TO 7 FT OCCASIONALLY TO 9 FT.

$$

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE (ALL LOWER CASE)

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)



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