Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 170237
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
837 PM CST MON JAN 16 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 29.7 INCHES OVER NORTHEAST MISSOURI
WILL TRACK NORTHEAST ACROSS SOUTHERN LAKE MICHIGAN EARLY TUESDAY
MORNING...THEN WILL BEGIN TO SLOWLY FILL AS IT MOVES TO THE
EASTERN LAKES THROUGH TUESDAY AFTERNOON. HIGH PRESSURE OF 30.2
INCHES WILL THEN BUILD ACROSS THE MID MISSISSIPPI VALLEY TUESDAY
NIGHT...AND TO THE MID ATLANTIC COAST THURSDAY. LOW PRESSURE WILL
GRADUALLY ORGANIZE ACROSS THE PLAINS THURSDAY...EVENTUALLY MOVING
INTO THE OHIO VALLEY FRIDAY.

LMZ261-362-364-366-563-565-567-868-171030-
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-
837 PM CST MON JAN 16 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...EAST WINDS 5 TO 10 KT INCREASING TO 15 TO 25 KT
AFTER MIDNIGHT. FOG DEVELOPING OVERNIGHT. A MIX OF RAIN...FREEZING
RAIN AND SNOW OVERNIGHT. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT BY MORNING.
.TUESDAY...NORTHEAST WINDS 20 TO 25 KT DIMINISHING TO 10 TO 20
KT BY EARLY AFTERNOON. AREAS OF FOG IN THE MORNING. RAIN AND
SNOW LIKELY IN THE MORNING...THEN A CHANCE OF RAIN AND SNOW IN
THE AFTERNOON. WAVES 3 TO 6 FT OCCASIONALLY TO 8 FT.
.TUESDAY NIGHT...NORTH WINDS 10 TO 15 KT BACKING TO WEST 10 TO
20 KT. WAVES 2 TO 4 FT.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KT INCREASING TO 30 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.WEDNESDAY NIGHT...SOUTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH
10 TO 15 KT. WAVES 2 TO 4 FT.
.FRIDAY...SOUTHEAST WINDS 10 TO 15 KT BECOMING EAST. WAVES 1 TO
2 FT.
.SATURDAY...EAST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-171030-
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-
837 PM CST MON JAN 16 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...EAST WINDS 15 TO 20 KT BECOMING SOUTHEAST AT
10 TO 20 KT TOWARD MORNING. WIDESPREAD FOG. PERIODS OF RAIN AND
A SLIGHT CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KT BACKING TO NORTHWEST BY
EARLY AFTERNOON. AREAS OF FOG IN THE MORNING...SOME MAY BE DENSE.
RAIN LIKELY...MAINLY IN THE MORNING. WAVES 2 TO 4 FT BUILDING TO
3 TO 5 FT OCCASIONALLY TO 7 FT IN THE AFTERNOON.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT BECOMING WEST. WAVES
SUBSIDING TO 2 TO 4 FT.
.WEDNESDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES
2 TO 4 FT.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.THURSDAY NIGHT...SOUTH WINDS 10 TO 15 KT BECOMING SOUTHEAST.
WAVES 1 TO 3 FT.
.FRIDAY...NORTHEAST WINDS 10 TO 15 KT. CHANCE OF RAIN. WAVES 1 TO
3 FT.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$
LMZ761-171030-
MAFOR 1704/
MICHIGAN NORTH 10210 12226 13137 11120 11820 11810. RAIN...FREEZING
RAIN AND SNOW. AREAS OF FOG. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT BY MORNING. WAVES 3 TO 6 FT OCCASIONALLY TO 8
FT TUESDAY. WAVES SUBSIDING TO 2 TO 4 FT TUESDAY EVENING.

MICHIGAN SOUTH 12226 11226 19326 11826 11723 13720. AREAS OF FOG.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT OVERNIGHT SUBSIDING TO 2 TO
4 FT TUESDAY THEN BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT AGAIN
TUESDAY AFTERNOON AND EARLY 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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