Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 171428
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
828 AM CST TUE JAN 17 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 29.8 INCHES OVER SOUTHWEST MICHIGAN WILL
CONTINUE TO TRACK NORTHEAST ACROSS THE CENTRAL GREAT LAKES...AND
THEN WILL BEGIN TO SLOWLY FILL AS IT MOVES TO THE EASTERN LAKES
THROUGH THIS EVENING. HIGH PRESSURE OF 30.2 INCHES WILL THEN BUILD
ACROSS THE MID MISSISSIPPI VALLEY TONIGHT...AND TO THE MID
ATLANTIC COAST THURSDAY. LOW PRESSURE WILL GRADUALLY ORGANIZE
ACROSS THE PLAINS THURSDAY...EVENTUALLY MOVING INTO THE OHIO
VALLEY FRIDAY.

LMZ261-362-364-366-563-565-567-868-172215-
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-
828 AM CST TUE JAN 17 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...NORTHEAST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. AREAS OF FOG THROUGH MID MORNING. CHANCE OF SHOWERS...SNOW
SHOWERS AND SLIGHT CHANCE OF LIGHT FREEZING RAIN THROUGH MID
MORNING...THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF LIGHT
FREEZING RAIN THIS AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY TO
7 FT SUBSIDING TO 2 TO 4 FT.
.TONIGHT...NORTH WINDS 10 TO 15 KT BACKING TO WEST. WAVES 2 TO 4
FT.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 30 KT.
WAVES 1 TO 3 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 2 TO 4 FT.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTHEAST.
WAVES 1 TO 3 FT.
.FRIDAY...EAST WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO 15 KT.
WAVES 1 TO 2 FT.
.SATURDAY...EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST. WAVES 1 TO
2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-172215-
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-
828 AM CST TUE JAN 17 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...NORTHWEST WINDS 10 TO 20 KT. AREAS OF FOG
THROUGH MID MORNING. CHANCE OF SHOWERS THROUGH MID MORNING...THEN
SLIGHT CHANCE OF SHOWERS THIS AFTERNOON. WAVES 2 TO 4 FT.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KT BECOMING WEST LATE. SLIGHT
CHANCE OF DRIZZLE. WAVES 2 TO 4 FT.
.WEDNESDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO
20 KT. WAVES 2 TO 4 FT.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH 10 TO
15 KT. WAVES 1 TO 3 FT.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KT BECOMING EAST 10 TO
15 KT. WAVES 1 TO 2 FT.
.FRIDAY...NORTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHEAST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 1 TO 3 FT.

$$
LMZ761-172215-
MAFOR 1716/
MICHIGAN NORTH 11133 12120 12810 12610 11520. CHANCE OF RAIN AND
SNOW SHOWERS LATE THIS MORNING...THEN CHANCE OF RAIN SHOWERS THIS
AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO
4 FT TODAY. WAVES 2 TO 4 FT TONIGHT. WAVES 1 TO 3 FT WEDNESDAY
MORNING.

MICHIGAN SOUTH 11723 14720 11720 11620 11610. CHANCE OF RAIN
SHOWERS LATE THIS MORNING. WAVES 2 TO 4 FT.

$$


JEE

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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