Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 210151
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
851 PM CDT FRI MAR 20 2015

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...AN ELONGATED TROUGH OF LOW PRESSURE OF 29.8 INCHES
AND AN ASSOCIATED COLD FRONT WILL MOVE SOUTH DOWN LAKE MICHIGAN
OVERNIGHT THEN DEEPEN SLIGHTLY AS IT PIVOTS ACROSS THE LOWER
GREAT LAKES AND ST. LAWRENCE VALLEY SATURDAY. HIGH PRESSURE OF
30.6 INCHES WILL SHIFT FROM THE CANADIAN PRAIRIES SOUTHEAST INTO
THE GREAT LAKES FROM SUNDAY THROUGH MONDAY. THE HIGH WILL THEN
STEADILY SHIFT EASTWARD TO THE EASTERN SEABOARD BY MID WEEK. LOW
PRESSURE IS THEN EXPECTED TO MOVE ACROSS THE GREAT LAKES SOME TIME
WEDNESDAY.

LMZ261-362-364-366-563-565-567-868-210930-
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-
851 PM CDT FRI MAR 20 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KT VEERING TO NORTH.
RAIN OR SNOW LIKELY THIS EVENING...THEN CHANCE OF RAIN OR SNOW
OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT AND
BECOMING NORTHEAST. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH.
WAVES 2 TO 4 FT.
.SUNDAY...NORTH WINDS 10 TO 15 KT. WAVES 2 TO 4 FT.
.SUNDAY NIGHT...NORTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.MONDAY...NORTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.MONDAY NIGHT...EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST. WAVES
1 TO 3 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHEAST. WAVES 1 TO
3 FT.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KT VEERING TO NORTHWEST. SNOW
SHOWERS LIKELY WITH A CHANCE OF SHOWERS. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO 4 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-210930-
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-
851 PM CDT FRI MAR 20 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TONIGHT...SOUTHWEST WINDS 20 TO 25 KT BECOMING WEST.
WAVES 2 TO 4 FT.
.SATURDAY...NORTH WINDS 20 TO 25 KT BECOMING NORTHEAST 10 TO 20
KT. WAVES BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.SUNDAY NIGHT...NORTHEAST WINDS 10 TO 20 KT. CHANCE OF SNOW IN
THE EVENING...THEN CHANCE OF SNOW AND LIGHT FREEZING RAIN
OVERNIGHT. WAVES 2 TO 4 FT.
.MONDAY...EAST WINDS 10 TO 20 KT BECOMING NORTHEAST. WAVES 2 TO
4 FT.
.MONDAY NIGHT...NORTHEAST WINDS 10 TO 20 KT BECOMING EAST. WAVES
1 TO 3 FT.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KT. CHANCE OF RAIN. WAVES
1 TO 3 FT.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST. CHANCE OF
SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO
5 FT OCCASIONALLY TO 7 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$
LMZ761-210930-
MAFOR 2104/
MICHIGAN NORTH 11537 11730 13830 11820 12120. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT SATURDAY EVENING.

MICHIGAN SOUTH 12530 11630 11730 12830 11120 11110. WAVES 2 TO 4
FT OVERNIGHT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT SATURDAY
AND SATURDAY EVENING.

$$


KREIN


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