Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 201356
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
856 AM CDT MON OCT 20 2014

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 NEAR THE SOO LOCKS WILL
MOVE ACROSS LAKE HURON THIS AFTERNOON AND TO NEAR LAKE ONTARIO BY
TUESDAY MORNING. A TRAILING COLD FRONT MOVED ACROSS THE LAKE THIS
MORNING. WEAK HIGH PRESSURE OF 30.1 INCHES TRAILING THIS LOW WILL
SLOWLY STRENGTHEN TO 30.4 INCHES AS IT MOVES ACROSS ONTARIO AND
INTO QUEBEC BY TUESDAY NIGHT. A RIDGE AXIS AVERAGING 30.3 INCHES
WILL EXTEND SOUTHWEST FROM THIS HIGH ACROSS THE WESTERN LAKES
TUESDAY THROUGH MUCH OF THE REMAINDER OF THE WORK WEEK.

LMZ261-362-364-366-563-565-567-868-202130-
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-
856 AM CDT MON OCT 20 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...NORTHWEST WINDS 15 TO 25 KT THIS MORNING...THEN NORTH TO
30 KT LATE. SCATTERED SHOWERS THIS AFTERNOON. WAVES 2 TO 4 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT THIS AFTERNOON.
.TONIGHT...NORTH WINDS TO 30 KT. SCATTERED SHOWERS IN THE
EVENING...THEN SLIGHT CHANCE OF SHOWERS OVERNIGHT. WAVES 5 TO
8 FT OCCASIONALLY TO 10 FT.
.TUESDAY...NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT IN
THE AFTERNOON. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KT BECOMING EAST
AROUND 10 KT OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
SUBSIDING TO 2 TO 4 FT.
.WEDNESDAY...EAST WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 10 KT BECOMING SOUTH. WAVES
1 TO 2 FT.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-202130-
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-
856 AM CDT MON OCT 20 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...NORTHWEST WINDS 15 TO 25 KT THIS MORNING...THEN NORTH
LATE. SLIGHT CHANCE OF SHOWERS THIS AFTERNOON. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 3 TO 6 FT OCCASIONALLY TO 8 FT.
.TONIGHT...NORTH WINDS TO 30 KT. SCATTERED SHOWERS. WAVES
BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT.
.TUESDAY...NORTH WINDS TO 30 KT. SCATTERED SHOWERS IN THE
MORNING...THEN SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON. WAVES
6 TO 9 FT OCCASIONALLY TO 11 FT.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT DIMINISHING TO 10
TO 15 KT OVERNIGHT. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY...NORTHEAST WINDS AROUND 10 KT. WAVES SUBSIDING TO 1
TO 3 FT.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 10 KT VEERING TO SOUTHEAST.
WAVES 1 TO 2 FT.
.THURSDAY...SOUTHWEST WINDS AROUND 10 KT. WAVES 1 TO 3 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.

$$
LMZ761-202130-
MAFOR 2015/
MICHIGAN NORTH 12730 15840. SCATTERED SHOWERS THIS AFTERNOON AND
TONIGHT. WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT
THIS AFTERNOON. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT TONIGHT AND
TUESDAY MORNING.

MICHIGAN SOUTH 12730 11830 14840 11840. SCATTERED SHOWERS TONIGHT
AND TUESDAY MORNING. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT
SUBSIDING TO 3 TO 6 FT OCCASIONALLY TO 8 FT THIS AFTERNOON.
WAVES BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT TONIGHT AND
TUESDAY MORNING.

$$

LENNING






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