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
000
FZUS63 KLOT 232001
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
301 PM CDT TUE MAY 23 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...A WEAK LOW AROUND 29.7 INCHES OVER WISCONSIN WILL
MEANDER ACROSS THE WESTERN AND SOUTHERN GREAT LAKES THROUGH MID
WEEK WHILE SLOWLY DEEPENING TO AROUND 29.4 INCHES. WEAK HIGH
PRESSURE RIDGING AROUND 29.9 INCHES WILL BE OVER THE GREAT LAKES
ON FRIDAY INTO SATURDAY.

LMZ261-362-364-366-563-565-240330-
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-
301 PM CDT TUE MAY 23 2017

TWO RIVERS WI TO MANISTEE MI NORTH...

.TONIGHT...NORTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
CHANCE OF RAIN SHOWERS...AND A SLIGHT CHANCE OF THUNDERSTORMS
THIS EVENING. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY
TO 7 FT.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT. CHANCE OF RAIN SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KT DIMINISHING TO
10 TO 20 KT. CHANCE OF RAIN SHOWERS OVERNIGHT. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KT. CHANCE OF RAIN SHOWERS
IN THE MORNING. WAVES 2 TO 4 FT.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KT DIMINISHING TO 5 TO
10 KT OVERNIGHT. WAVES 1 TO 3 FT SUBSIDING TO 1 TO 2 FT.
.FRIDAY...NORTH WINDS 5 TO 10 KT BACKING TO SOUTHWEST. WAVES 1 FT
OR LESS.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.
.SATURDAY...SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTH 10 TO
15 KT. WAVES 1 TO 2 FT.
.SUNDAY...NORTH WINDS 10 TO 20 KT BACKING TO NORTHWEST. CHANCE OF
SHOWERS. WAVES 2 TO 4 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-240330-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 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 PENTWATER TO MANISTEE MI 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 MAY 23 2017

TWO RIVERS WI TO MANISTEE MI SOUTH...

.TONIGHT...NORTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
SHOWERS LIKELY...AND A SLIGHT CHANCE OF THUNDERSTORMS THIS
EVENING. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7
FT.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH 15 TO
25 KT. CHANCE OF RAIN SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. CHANCE OF SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.THURSDAY...NORTH WINDS 10 TO 20 KT. WAVES 3 TO 5 FT OCCASIONALLY
TO 7 FT.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
.FRIDAY...NORTHWEST WINDS 5 TO 10 KT BACKING TO SOUTH. WAVES 1 TO
2 FT.
.FRIDAY NIGHT...SOUTH WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.
.SATURDAY...NORTH WINDS 10 TO 15 KT BECOMING NORTHEAST. WAVES
1 TO 2 FT.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KT BECOMING WEST. WAVES 2 TO
4 FT.

$$

LMZ761-240330-
MAFOR 2321/
MICHIGAN NORTH 13126 11136 11130 11120 12130. CHANCE OF SHOWERS
WEDNESDAY. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO
7 FT TONIGHT...THEN TO 4 TO 6 FT OCCASIONALLY TO 8 FT WEDNESDAY.

MICHIGAN SOUTH 11316 12116 11126 12120 11130 11830. CHANCE OF
SHOWERS WEDNESDAY. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT TONIGHT...THEN TO 4 TO 6 FT OCCASIONALLY TO
8 FT WEDNESDAY.

$$

LENNING

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES



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