Great Lakes Forecast
Issued by NWS

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526
FZUS63 KLOT 110231
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
831 PM CST SAT DEC 10 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...A 30.5 INCH HIGH PRESSURE RIDGE CENTERED OVER THE
OHIO VALLEY WILL SPREAD OVER THE EAST COAST TONIGHT AND THEN MOVE
OFFSHORE SUNDAY NIGHT. A 29.7 INCH LOW WILL FORM OVER THE SOUTHERN
PLAINS SUNDAY MORNING AND PASS OVER LAKE MICHIGAN SUNDAY NIGHT.
THE LOW WILL THEN TRACK OVER THE EASTERN GREAT LAKES ON ITS WAY TO
NEW ENGLAND MONDAY. A 30.2 INCH HIGH WILL BUILD ACROSS THE CENTRAL
PLAINS SUNDAY NIGHT THEN MOVE EAST ACROSS THE OHIO VALLEY MONDAY.
MEANWHILE...A 29.5 INCH LOW WILL DEVELOP OVER HUDSON BAY MONDAY
WITH A COLD FRONT PUSHING ACROSS LAKE MICHIGAN MONDAY NIGHT. HIGH
PRESSURE OF 30.6 INCHES WILL BUILD ACROSS THE PLAINS AGAIN ON
TUESDAY THEN SPREAD EAST ACROSS THE MIDWEST WEDNESDAY.

LMZ261-362-364-366-563-565-110900-
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-
831 PM CST SAT DEC 10 2016

TWO RIVERS WI TO MANISTEE MI NORTH...

.REST OF TONIGHT...WEST WINDS 10 TO 15 KT BECOMING SOUTH 10 TO
20 KT. CHANCE OF SNOW. WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT.
.SUNDAY...SOUTHEAST WINDS TO 30 KT. SNOW. WAVES BUILDING TO 4 TO
7 FT OCCASIONALLY TO 9 FT.
.SUNDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KT VEERING TO NORTHWEST
TO 30 KT. SNOW LIKELY IN THE EVENING...THEN CHANCE OF SNOW
OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.MONDAY...NORTHWEST WINDS TO 30 KT BECOMING WEST 10 TO 20 KT IN
THE AFTERNOON. 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 TO 30
KT. CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES 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...WEST WINDS TO 30 KT. FREEZING SPRAY LIKELY. CHANCE OF
SNOW SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO
4 TO 7 FT OCCASIONALLY TO 9 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-110900-
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-
831 PM CST SAT DEC 10 2016

TWO RIVERS WI TO MANISTEE MI SOUTH...

.REST OF TONIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH
15 TO 25 KT. SNOW. WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.SUNDAY...SOUTH WINDS TO 30 KT. SNOW. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS TO 30 KT BECOMING WEST. SNOW
LIKELY IN THE EVENING. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.MONDAY...WEST WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT IN THE
AFTERNOON. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 4
TO 6 FT OCCASIONALLY TO 8 FT.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST TO 30
KT OVERNIGHT. CHANCE OF SNOW SHOWERS. 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. CHANCE OF SNOW SHOWERS. WAVES 6 TO 9 FT OCCASIONALLY TO 11
FT.
.WEDNESDAY...WEST GALES TO 35 KT INCREASING TO GALES TO 40 KT.
CHANCE OF FREEZING SPRAY. CHANCE OF SNOW SHOWERS. WAVES 7 TO 10
FT OCCASIONALLY TO 13 FT.
.THURSDAY...NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT.
FREEZING SPRAY LIKELY. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.

$$
LMZ761-110900-
MAFOR 1104/
MICHIGAN NORTH 11610 11510 19420 11327 13347 11337 11437.
CHANCE OF SNOW OVERNIGHT. WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT
TONIGHT AND TO 4 TO 7 FT OCCASIONALLY TO 9 FT SUNDAY. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT SUNDAY EVENING.

MICHIGAN SOUTH 11527 12437 14447 11547. WAVES 2 TO 4 FT BUILDING
TO 4 TO 6 FT OCCASIONALLY TO 8 FT TONIGHT. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUNDAY AND SUNDAY EVENING.

$$

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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