Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FZUS63 KLOT 200743
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
243 AM CDT WED MAY 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...HIGH PRESSURE OF 30.3 INCHES IS CENTERED OVER THE
NORTHERN PLAINS AND STRETCHES OVER SOUTHERN LAKE MICHIGAN. LOW
PRESSURE OF 29.4 INCHES LIES OVER THE CANADIAN MARITIMES THIS
MORNING WITH TROUGHING STRETCHING WEST ACROSS JAMES BAY. THE
TROUGH WILL SLOWLY SLIDE SOUTH REACHING NORTHERN LAKE MICHIGAN
EARLY ON THURSDAY...THEN CLEAR THE SOUTH END OF LAKE MICHIGAN BY
EARLY FRIDAY. A 30.3 INCH HIGH WILL BUILD OVER THE WESTERN LAKES
FRIDAY...THEN MOVE TO THE MID ATLANTIC COAST SATURDAY AS A 29.7
INCH LOW DEVELOPS OVER THE CENTRAL PLAINS.

LMZ261-362-364-366-563-565-567-868-201515-
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-
243 AM CDT WED MAY 20 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...NORTHWEST WINDS AROUND 10 KT BECOMING SOUTHWEST AND
INCREASING TO 10 TO 20 KT. WAVES 1 TO 3 FT.
.TONIGHT...SOUTHWEST WINDS 15 TO 20 KT BECOMING WEST. WAVES 2 TO
4 FT.
.THURSDAY...WEST WINDS 10 TO 20 KT BECOMING NORTH. CHANCE OF
SHOWERS IN THE AFTERNOON. WAVES 2 TO 4 FT.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES SUBSIDING TO 1 TO 3 FT.
.FRIDAY...VARIABLE WINDS 5 TO 10 KT BECOMING SOUTHEAST. WAVES 1
TO 2 FT.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHWEST. WAVES
1 FT OR LESS.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.SUNDAY...SOUTH WINDS 10 TO 15 KT. CHANCE OF SHOWERS. WAVES 1 TO
3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-201515-
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-
243 AM CDT WED MAY 20 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...NORTHEAST WINDS 10 TO 20 KT BACKING TO NORTH 10 TO 15
KT. WAVES 2 TO 4 FT.
.TONIGHT...WEST WINDS AROUND 10 KT BECOMING SOUTHWEST 10 TO 15
KT...THEN WEST 10 TO 20 KT LATE. WAVES 1 TO 3 FT.
.THURSDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES 2 TO
4 FT.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT BECOMING NORTH.
WAVES 2 TO 4 FT.
.FRIDAY...NORTH WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
.FRIDAY NIGHT...EAST WINDS 5 TO 10 KT BECOMING SOUTH. WAVES 1 TO
2 FT.
.SATURDAY...SOUTH WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.SUNDAY...SOUTH WINDS 10 TO 15 KT. CHANCE OF SHOWERS. WAVES 1 TO
2 FT.

$$

LMZ761-201515-
MAFOR 2010/
MICHIGAN NORTH 11700 11600 11510 14520 11520. WAVES 1 TO 3 FT
TODAY. WAVES 2 TO 4 FT TONIGHT.

MICHIGAN SOUTH 12120 13810 11600 12510. WAVES 2 TO 4 FT TODAY.
WAVES 1 TO 3 FT TONIGHT.

$$

BMD



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.