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
000
FZUS63 KLOT 281955
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
255 PM CDT SUN AUG 28 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...HIGH PRESSURE OF 30.2 INCHES OVER THE LAKE WILL MOVE
SLOWLY EAST THROUGH MONDAY AND MONDAY NIGHT. LOW PRESSURE OF 29.7
INCHES WILL MOVE EAST ACROSS NORTHERN ONTARIO ON MONDAY NIGHT
INTO TUESDAY AND WILL SEND A COLD FRONT ACROSS THE NORTHERN HALF
OF THE LAKE ON TUESDAY AND FURTHER SOUTH DOWN THE LAKE ON TUESDAY
NIGHT. LARGE HIGH PRESSURE OF 30.3 INCHES WILL BUILD TOWARDS THE
WESTERN LAKES THROUGH MIDWEEK THEN SPREAD TO THE EASTERN LAKES
LATE WEEK.

LMZ261-362-364-366-563-565-567-868-290330-
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-
255 PM CDT SUN AUG 28 2016

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHEAST AFTER
MIDNIGHT. AREAS OF FOG OVERNIGHT. WAVES AROUND 1 FT.
.MONDAY...SOUTHEAST WINDS 5 TO 10 KT BECOMING SOUTH 10 TO 15 KT
LATE IN THE MORNING...THEN BECOMING SOUTHWEST EARLY IN THE
AFTERNOON. AREAS OF FOG IN THE MORNING. WAVES 1 TO 2 FT.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS
AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO 3 FT.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING WEST LATE IN THE
DAY. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.WEDNESDAY...NORTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES 2 TO 4 FT.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. WAVES SUBSIDING TO 1 TO 3 FT.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH. WAVES
1 TO 3 FT.
.FRIDAY...SOUTHEAST WINDS 5 TO 10 KT BECOMING SOUTH. WAVES 1 TO
2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-290330-
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-
255 PM CDT SUN AUG 28 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...NORTHEAST WINDS AROUND 10 KT BECOMING EAST AFTER
MIDNIGHT. AREAS OF FOG DEVELOPING. WAVES 1 FT OR LESS.
.MONDAY...EAST WINDS 10 TO 15 KT BECOMING VARIABLE 5 TO 10 KT
EARLY IN THE AFTERNOON. AREAS OF FOG IN THE MORNING. WAVES 1 TO 2
FT.
.MONDAY NIGHT...VARIABLE WINDS 5 TO 10 KT BECOMING SOUTH AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FT.
.TUESDAY NIGHT...WEST WINDS 10 TO 15 KT VEERING TO NORTH 10 TO
20 KT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. WAVES
1 TO 3 FT BUILDING TO 2 TO 4 FT LATE.
.WEDNESDAY...NORTH WINDS 10 TO 20 KT INCREASING TO 20 TO 25 KT IN
THE AFTERNOON. WAVES BUILDING TO 3 TO 6 FT OCCASIONALLY TO 8 FT.
.WEDNESDAY NIGHT...NORTH WINDS 20 TO 25 KT BECOMING NORTHEAST 15
TO 25 KT. WAVES 3 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.FRIDAY...SOUTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.

$$

LMZ761-290330-
MAFOR 2821/
MICHIGAN NORTH 13400 13303 11410 11510.

MICHIGAN SOUTH 13100 19110 12204 12215 11900. WAVES 2 FT OR LESS.

$$

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.