Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 110250
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
850 PM CST TUE JAN 10 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...DEEP LOW PRESSURE OF 28.9 INCHES EAST OF LAKE
SUPERIOR WILL DEEPEN TO 28.8 INCHES AS IT MOVES TO EASTERN HUDSON
BAY WEDNESDAY. ANOTHER TROUGH OF LOW PRESSURE AT 29.7 INCHES WILL
MOVE FROM THE CENTRAL PLAINS TO THE CENTRAL GREAT LAKES WEDNESDAY.
AS THIS TROUGH MOVES SOUTH OF LAKE MICHIGAN WEDNESDAY NIGHT...
ANOTHER COLD FRONT WILL MOVE SOUTHEAST INTO THE GREAT LAKES
THURSDAY CROSSING LAKE MICHIGAN THURSDAY NIGHT. A STRONG AREA OF
HIGH PRESSURE AT 30.9 INCHES THEN BUILDS ACROSS THE GREAT LAKES
FRIDAY INTO SATURDAY...PERSISTING INTO SUNDAY.

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-
850 PM CST TUE JAN 10 2017

TWO RIVERS WI TO MANISTEE MI NORTH...

...GALE WARNING IN EFFECT UNTIL 5 AM CST WEDNESDAY...

.REST OF TONIGHT...WEST GALES TO 45 KT DIMINISHING TO 30 KT BY
MORNING. CHANCE OF SNOW THIS EVENING...THEN SLIGHT CHANCE OF SNOW
OVERNIGHT. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT SUBSIDING TO 8
TO 12 FT OCCASIONALLY TO 15 FT.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING NORTHWEST.
CHANCE OF SNOW IN THE MORNING...THEN SNOW LIKELY WITH A CHANCE OF
LIGHT FREEZING RAIN IN THE AFTERNOON. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KT. CHANCE OF SNOW IN THE
EVENING...THEN CHANCE OF LIGHT FREEZING RAIN OVERNIGHT. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY...NORTH WINDS 10 TO 15 KT BECOMING WEST TO 30 KT IN THE
AFTERNOON. CHANCE OF SNOW IN THE MORNING. WAVES 2 TO 4 FT
BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.THURSDAY NIGHT...WEST WINDS TO 30 KT BECOMING NORTHWEST 15 TO
25 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 4 TO
6 FT OCCASIONALLY TO 8 FT.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2 FT.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 10 TO
15 KT. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING WEST. CHANCE OF
SNOW. WAVES 1 TO 2 FT.
.SUNDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES 1 TO
2 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-
850 PM CST TUE JAN 10 2017

TWO RIVERS WI TO MANISTEE MI SOUTH...

...GALE WARNING IN EFFECT UNTIL 3 AM CST WEDNESDAY...

.REST OF TONIGHT...WEST GALES TO 45 KT BECOMING SOUTHWEST TO 30
KT OVERNIGHT. SLIGHT CHANCE OF SNOW THIS EVENING. WAVES 12 TO 16
FT OCCASIONALLY TO 20 FT SUBSIDING TO 7 TO 10 FT OCCASIONALLY TO
13 FT.
.WEDNESDAY...SOUTH WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT IN
THE AFTERNOON. CHANCE OF RAIN...LIGHT FREEZING RAIN AND LIGHT
SLEET IN THE AFTERNOON. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KT BECOMING NORTH.
RAIN...LIGHT FREEZING RAIN LIKELY WITH A CHANCE OF LIGHT SLEET IN
THE EVENING...THEN CHANCE OF LIGHT FREEZING RAIN...RAIN AND SNOW
OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST 15 TO 25
KT. CHANCE OF LIGHT FREEZING RAIN AND SNOW IN THE MORNING. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KT. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.FRIDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST 10 TO 15 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT.
.FRIDAY NIGHT...EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST. WAVES
1 TO 3 FT.
.SATURDAY...SOUTHEAST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. WAVES 1 TO 2 FT.
.SUNDAY...EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST. WAVES 1 TO
2 FT.

$$

LMZ761-110900-
MAFOR 1104/
MICHIGAN NORTH...GALE WARNING IN EFFECT...12660 11650 13530
11630 19720 11820. CHANCE OF SNOW THIS EVENING. CHANCE OF SNOW
WEDNESDAY MORNING...THEN SNOW LIKELY WITH A CHANCE OF LIGHT
FREEZING RAIN WEDNESDAY AFTERNOON. WAVES 10 TO 14 FT
OCCASIONALLY TO 18 FT SUBSIDING TO 8 TO 12 FT OCCASIONALLY TO
15 FT TONIGHT AND TO 5 TO 8 FT OCCASIONALLY TO 10 FT WEDNESDAY.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...11660 11550 11540
13440 11430 19420 11820. CHANCE OF RAIN...LIGHT FREEZING RAIN AND
LIGHT SLEET IN THE AFTERNOON. WAVES 12 TO 16 FT OCCASIONALLY TO
20 FT SUBSIDING TO 7 TO 10 FT OCCASIONALLY TO 13 FT TONIGHT AND
TO 5 TO 8 FT OCCASIONALLY TO 10 FT WEDNESDAY.

$$

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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