Great Lakes Forecast
Issued by NWS

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218
FZUS63 KLOT 110859
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
259 AM CST SUN DEC 11 2016

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 29.7 INCHES WILL LIFT NORTHEAST FROM
THE CENTRAL PLAINS TO THE WESTERN GREAT LAKES REGION BY THIS
EVENING. THE LOW WILL PASS ACROSS NORTHERN LAKE MICHIGAN THIS
EVENING...TRAILING A COLD FRONT ACROSS THE LAKE DURING THE NIGHT.
HIGH PRESSURE OF 30.2 INCHES WILL SPREAD FROM THE PLAINS TO THE
OHIO VALLEY ON MONDAY...WHILE A SHARP COLD FRONT IN A TROUGH
AVERAGING 29.9 INCHES APPROACHES THE LAKES. THIS FRONT WILL MOVE
ACROSS THE LAKE LATE MONDAY NIGHT. HIGH PRESSURE OF 30.4 INCHES
WILL THEN BUILD FROM THE NORTHERN PLAINS TO THE MIDWEST THROUGH
MID WEEK.

LMZ261-362-364-366-563-565-111630-
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-
259 AM CST SUN DEC 11 2016

TWO RIVERS WI TO MANISTEE MI NORTH...

.TODAY...SOUTHWEST WINDS 5 TO 10 KT EARLY...BECOMING SOUTHEAST
AND INCREASING TO 30 KT BY LATE MORNING. SNOW. WAVES 2 TO 4 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.TONIGHT...SOUTHEAST WINDS 15 TO 25 KT VEERING TO WEST TO 30 KT.
SNOW IN THE EVENING...THEN CHANCE OF SNOW OVERNIGHT. WAVES 4 TO 6
FT OCCASIONALLY TO 8 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9
FT.
.MONDAY...NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT
LATE IN THE MORNING...THEN BECOMING WEST 10 TO 20 KT IN THE
AFTERNOON. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 2 TO
4 FT.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST TO
30 KT. CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.TUESDAY...WEST WINDS TO 30 KT. CHANCE OF SNOW SHOWERS IN THE
MORNING. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.TUESDAY NIGHT...WEST GALES TO 35 KT INCREASING TO GALES TO
40 KT. CHANCE OF SNOW SHOWERS. WAVES 7 TO 10 FT OCCASIONALLY TO
13 FT.
.WEDNESDAY...WEST GALES TO 40 KT DIMINISHING TO GALES TO 35 KT.
CHANCE OF FREEZING SPRAY. CHANCE OF SNOW SHOWERS. WAVES 7 TO 10
FT OCCASIONALLY TO 13 FT.
.THURSDAY...NORTHWEST WINDS TO 30 KT. FREEZING SPRAY LIKELY.
WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-111630-
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-
259 AM CST SUN DEC 11 2016

TWO RIVERS WI TO MANISTEE MI SOUTH...

.TODAY...SOUTHEAST WINDS 15 TO 20 KT INCREASING TO 30 KT AND
BECOMING SOUTH THIS MORNING...THEN EASING TO 15 TO 25 KT TOWARD
EVENING. SNOW. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 5
TO 8 FT OCCASIONALLY TO 10 FT THIS MORNING.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST LATE IN THE
EVENING...AND INCREASING TO 30 KT AFTER MIDNIGHT. SNOW AND RAIN
MAINLY IN THE EVENING. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.MONDAY...WEST WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT. WAVES
4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST. CHANCE
OF SNOW SHOWERS OVERNIGHT. WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.TUESDAY...NORTHWEST WINDS TO 30 KT BECOMING WEST. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT.
.TUESDAY NIGHT...WEST WINDS TO 30 KT INCREASING TO GALES TO
35 KT. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT.
.WEDNESDAY...WEST GALES TO 35 KT. CHANCE OF FREEZING SPRAY. WAVES
7 TO 10 FT OCCASIONALLY TO 13 FT.
.THURSDAY...NORTHWEST WINDS TO 30 KT. FREEZING SPRAY LIKELY. WAVES
7 TO 10 FT OCCASIONALLY TO 13 FT.

$$

LMZ761-111630-
MAFOR 1110/
MICHIGAN NORTH 11337 13347 11337 11437 11527 11630. SNOW TAPERING
TO SNOW SHOWERS TONIGHT. WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT TODAY. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
TONIGHT.

MICHIGAN SOUTH 13447 12437 11527 11626 11630. SNOW...MIXING WITH
RAIN FAR SOUTH THIS EVENING BEFORE ENDING. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT
TODAY...THEN SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT TONIGHT.

$$


RATZER

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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