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 251349
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
849 AM CDT THU AUG 25 2016

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 OVER QUEBEC WILL CONTINUE
TO MOVE EAST TODAY WITH AN EXTENDING WEAK COLD FRONT OVER THE FAR
SOUTHERN PART OF THE LAKE INCHING SOUTHWARD. HIGH PRESSURE OF 30.1
INCHES WILL SPREAD ACROSS THE WESTERN LAKES REGION BY FRIDAY
AFTERNOON AND THEN SLOWLY EAST BY EARLY SATURDAY. LOW PRESSURE OF
29.9 INCHES WILL DEVELOP OVER ONTARIO BY LATE SATURDAY NIGHT AND
TRACK NORTHEAST. HIGH PRESSURE OF 30.2 INCHES WILL THEN SPREAD
ACROSS THE LAKE EARLY NEXT WEEK.

LMZ261-362-364-366-563-565-567-868-252145-
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-
849 AM CDT THU AUG 25 2016

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...NORTHWEST WINDS 10 TO 15 KT BACKING SOUTHWEST IN
THE AFTERNOON. OCCASIONAL 20 KT GUSTS. WAVES 1 TO 3 FT.
.TONIGHT...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST LATE THIS
EVENING. WAVES 2 TO 4 FT.
.FRIDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 5 TO 10
KT IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FT.
.FRIDAY NIGHT...SOUTHEAST WINDS LESS THAN 10 KT INCREASING TO
10 TO 15 KT OVERNIGHT. WAVES 1 FT OR LESS.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KT. SHOWERS LIKELY. WAVES
1 TO 3 FT.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST
10 TO 15 KT. SHOWERS WITH A CHANCE OF THUNDERSTORMS. WAVES 1 TO
3 FT.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 1 TO 3 FT.
.MONDAY...NORTHEAST WINDS 5 TO 10 KT BACKING TO SOUTHWEST. WAVES
1 FT OR LESS.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-252145-
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-
849 AM CDT THU AUG 25 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...NORTHWEST WINDS 10 TO 15 KT BECOMING WEST EARLY
IN THE AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO
3 FT.
.TONIGHT...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST BY EARLY
OVERNIGHT. WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT BY LATE EVENING.
.FRIDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING NORTHEAST 5 TO 10
KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT IN THE AFTERNOON.
.FRIDAY NIGHT...EAST WINDS 5 TO 10 KT INCREASING TO 10 TO 20 KT
OVERNIGHT. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH. CHANCE OF
SHOWERS. WAVES 1 TO 3 FT.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST
10 TO 15 KT. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS. WAVES
1 TO 3 FT.
.SUNDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH 5 TO 10 KT.
WAVES 1 TO 3 FT.
.MONDAY...NORTHEAST WINDS 5 TO 10 KT BECOMING NORTH. WAVES 1 TO
2 FT.

$$
LMZ761-252145-
MAFOR 2515/
MICHIGAN NORTH 11710 19720 11610 11510 19520 11620 13720 11710.
WAVES 1 TO 3 FT TODAY BUILDING TO 2 TO 4 FT BY EARLY EVENING.
WAVES SUBSIDING TO 1 TO 3 FT FRIDAY MORNING.

MICHIGAN SOUTH 11710 12610 12620 12720 11710. CHANCE OF SHOWERS
AND THUNDERSTORMS TODAY. WAVES 1 TO 3 FT TODAY AND EARLY THIS
EVENING BUILDING TO 2 TO 4 FT BY LATE EVENING.

$$

MTF

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE (ALL LOWER CASE)

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)


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