Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 282001
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
301 PM CDT TUE MAR 28 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...HIGH PRESSURE AT 30.5 INCHES OVER NORTHERN MANITOBA
AND AN ASSOCIATED RIDGE OF HIGH PRESSURE EXTENDING SOUTH ACROSS
THE WESTERN GREAT LAKES TONIGHT WILL SLIDE OFF TO THE EAST
WEDNESDAY. THIS WILL ALLOW LOW PRESSURE AT 29.6 INCHES OVER THE
THE SOUTHERN PLAINS TO MOVE NORTHEAST TO THE MID MISSISSIPPI
VALLEY THURSDAY NIGHT...THEN ACROSS THE LOWER GREAT LAKES FRIDAY.
HIGH PRESSURE AT 30.2 INCHES WILL THEN BUILD INTO THE WESTERN
GREAT LAKES SATURDAY AND BUILD EAST TO THE CENTRAL LAKES REGION
SUNDAY.

LMZ261-362-364-366-563-565-567-868-290345-
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-
301 PM CDT TUE MAR 28 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...NORTHEAST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT. WAVES 2 TO 4 FT.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT BECOMING EAST.
CHANCE OF RAIN AND SNOW OVERNIGHT. WAVES 2 TO 4 FT.
.THURSDAY...EAST WINDS 15 TO 25 KT INCREASING TO 30 KT. RAIN WITH
A CHANCE OF SNOW. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY NIGHT...EAST WINDS TO 30 KT BECOMING NORTHEAST. RAIN
LIKELY, CHANCE OF SNOW AND LIGHT FREEZING DRIZZLE IN THE
EVENING...THEN CHANCE OF RAIN AND LIGHT FREEZING RAIN OVERNIGHT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.FRIDAY...NORTHEAST WINDS TO 30 KT. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT.
.FRIDAY NIGHT...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 1 TO
3 FT.
.SATURDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING WEST 5 TO 10 KT.
WAVES 1 TO 2 FT.
.SUNDAY...EAST WINDS 5 TO 10 KT BECOMING SOUTHEAST. WAVES 1 FT OR
LESS.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-290345-
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-
301 PM CDT TUE MAR 28 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...NORTH WINDS 10 TO 20 KT BECOMING EAST 15 TO 25 KT.
WAVES 2 TO 4 FT.
.WEDNESDAY...EAST WINDS 15 TO 25 KT BECOMING NORTHEAST. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT BECOMING EAST TO
30 KT. CHANCE OF RAIN IN THE EVENING...THEN RAIN AND SNOW LIKELY
OVERNIGHT. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT BUILDING TO 5 TO
8 FT OCCASIONALLY TO 10 FT.
.THURSDAY...EAST WINDS TO 30 KT INCREASING TO GALES TO 35 KT.
RAIN. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
.THURSDAY NIGHT...EAST WINDS TO 30 KT BECOMING NORTHEAST 15 TO
25 KT. RAIN IN THE EVENING...THEN CHANCE OF RAIN AND DRIZZLE
OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.FRIDAY...NORTHEAST WINDS TO 30 KT BECOMING NORTH. CHANCE OF
RAIN. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.FRIDAY NIGHT...NORTH WINDS 15 TO 25 KT BECOMING NORTHEAST 10 TO
20 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO
5 FT OCCASIONALLY TO 7 FT.
.SATURDAY...NORTH WINDS 10 TO 15 KT DIMINISHING TO 5 TO 10 KT.
WAVES 1 TO 3 FT.
.SUNDAY...EAST WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT. WAVES
1 FT OR LESS.

$$

LMZ761-290345-
MAFOR 2821/
MICHIGAN NORTH 12120 12130 14120. WAVES 2 TO 4 FT BUILDING TO 3
TO 5 FT OCCASIONALLY TO 7 FT,...THEN SUBSIDING TO 2 TO 4 FT
TONIGHT. WAVES 2 TO 4 FT WEDNESDAY.

MICHIGAN SOUTH 11830 11820 12130 12230 11130 11120. WAVES 3 TO 5
FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT TONIGHT. WAVES 3
TO 5 FT OCCASIONALLY TO 7 FT WEDNESDAY.

$$

ED F

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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