Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 140236
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
836 PM CST MON FEB 13 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 OF THE HIGHEST 1/3 OF THE WAVE, ALONG WITH THE
AVERAGE HEIGHT OF THE HIGHEST 10% OF THE WAVES WHICH WILL
OCCASIONALLY BE ENCOUNTERED.

.SYNOPSIS...LOW PRESSURE OF 29.4 INCHES OVER NORTHERN ONTARIO WILL
MOVE SOUTHEAST TO SOUTHEASTERN ONTARIO BY TUESDAY AFTERNOON. A
COLD FRONT TRAILING FROM THIS LOW WILL MOVE ACROSS THE LAKE
TUESDAY AFTERNOON. THE LOW WILL DEEPEN AS IT SLOWLY MOVES TO THE
NEW ENGLAND COAST WEDNESDAY NIGHT. A WEAK HIGH PRESSURE AVERAGING
29.7 INCHES WILL PASS OVER THE LAKE WEDNESDAY NIGHT INTO EARLY
THURSDAY.

LMZ261-362-364-366-563-565-567-868-140345-
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-
836 PM CST MON FEB 13 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH WEDNESDAY
MORNING...

.REST OF TONIGHT...SOUTHWEST WINDS TO 30 KT BECOMING WEST 15 TO
25 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.TUESDAY...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST TO 30 KT
EARLY IN THE AFTERNOON...THEN INCREASING TO GALES TO 35 KT LATE
IN THE AFTERNOON. CHANCE OF SNOW. WAVES 4 TO 7 FT OCCASIONALLY TO
9 FT.
.TUESDAY NIGHT...NORTHWEST GALES TO 35 KT. CHANCE OF SNOW
SHOWERS. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT.
.WEDNESDAY...NORTHWEST GALES TO 35 KT EASTING TO 30 KT WINDS IN
THE MORNING. CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.WEDNESDAY NIGHT...NORTHWEST WINDS TO 30 KT BECOMING NORTH 10 TO
20 KT OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING
TO 2 TO 4 FT.
.THURSDAY...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST 5 TO 10 KT
IN THE AFTERNOON. WAVES 1 TO 3 FT SUBSIDING TO 1 TO 2 FT.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH
10 TO 20 KT. WAVES 1 TO 3 FT.
.FRIDAY...SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-140345-
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-
836 PM CST MON FEB 13 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH WEDNESDAY
MORNING...

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.TUESDAY...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST AND
INCREASING TO GALES TO 35 KT LATE IN THE AFTERNOON. SLIGHT CHANCE
OF SNOW IN THE AFTERNOON. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.TUESDAY NIGHT...NORTHWEST GALES TO 35 KT. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT.
.WEDNESDAY...NORTHWEST GALES TO 35 KT EASING TO 30 KT DURING THE
MORNING. CHANCE OF SNOW SHOWERS. WAVES 6TO 9 FT OCCASIONALLY TO
11 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO
10 TO 20 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO
3 TO 5 FT OCCASIONALLY TO 7 FT.
.THURSDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING WEST 5 TO 10 KT.
WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 1 TO 3 FT.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH. WAVES 1 TO
3 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KT. WAVES 1 TO 2 FT.

$$
LMZ761-140345-
MAFOR 1310/
MICHIGAN NORTH 11540 14630 11740 12750. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.

MICHIGAN SOUTH 12530 13630 11640 12750. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT TONIGHT AND 4 TO 7 FT OCCASIONALLY TO 9 FT
TUESDAY.

$$

IZZI

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES



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