Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | 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
502
FZUS63 KLOT 202247 AAA
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN...UPDATED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
447 PM CST FRI JAN 20 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 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...BROAD LOW PRESSURE AVERAGING 29.6 INCHES SOUTH OF THE
LAKES ACROSS INDIANA AND OHIO WILL DISSIPATE BY THIS EVENING AS
IT REACHES LAKE HURON. ANOTHER LOW WILL DEVELOP ACROSS THE
SOUTHERN PLAINS BY THIS EVENING AND REACH MINNESOTA AT 29.5
INCHES SATURDAY NIGHT. ANOTHER STRONGER LOW OF 29.3 INCHES WILL
DEVELOP OVER THE SOUTHERN PLAINS SATURDAY NIGHT AND DEEPEN TO 29.2
INCHES AS IT REACHES THE MID ATLANTIC COAST MONDAY.

LMZ261-362-364-366-563-565-567-868-210430-
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-
447 PM CST FRI JAN 20 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

...DENSE FOG ADVISORY IN EFFECT UNTIL 3 PM CST SATURDAY...

.TONIGHT...SOUTHEAST WINDS 10 TO 15 KT. AREAS OF DENSE FOG.
SLIGHT CHANCE OF RAIN AND DRIZZLE. WAVES 1 TO 3 FT.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KT. AREAS OF DENSE FOG.
CHANCE OF RAIN...SLIGHT CHANCE RAIN AND DRIZZLE. WAVES 2 TO 4 FT.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KT DIMINISHING TO
10 TO 15 KT. CHANCE OF SHOWERS IN THE EVENING. PATCHY FOG. WAVES
SUBSIDING TO 1 TO 3 FT.
.SUNDAY...EAST WINDS 10 TO 15 KT BECOMING NORTHEAST 10 TO 20 KT.
PATCHY FOG IN THE MORNING. CHANCE OF RAIN. WAVES 1 TO 3 FT.
.SUNDAY NIGHT...NORTHEAST WINDS 10 TO 20 KT. CHANCE OF RAIN.
WAVES 1 TO 3 FT.
.MONDAY...NORTHEAST WINDS 10 TO 20 KT. CHANCE OF RAIN. WAVES 1 TO
3 FT.
.MONDAY NIGHT...NORTHEAST WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. CHANCE OF SNOW AND RAIN. WAVES 1 TO 3 FT.
.TUESDAY...NORTH WINDS 10 TO 15 KT BECOMING NORTHWEST. CHANCE OF
SNOW. WAVES 1 TO 2 FT.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH. CHANCE
OF SNOW AND RAIN. WAVES 2 TO 4 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-210430-
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-
447 PM CST FRI JAN 20 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CST SATURDAY...

.TONIGHT...EAST WINDS AROUND 10 KT BECOMING SOUTHEAST THIS
EVENING...THEN INCREASING TO 10 TO 20 KT. AREAS OF DENSE FOG.
CHANCE OF RAIN AND DRIZZLE. WAVES 1 TO 3 FT.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH.
AREAS OF DENSE FOG IN THE MORNING...THEN PATCHY FOG IN THE
AFTERNOON. SLIGHT CHANCE OF RAIN AND DRIZZLE. WAVES 2 TO 4 FT.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT AFTER MIDNIGHT...THEN BECOMING EAST LATE. PATCHY FOG. WAVES
SUBSIDING TO 1 TO 3 FT.
.SUNDAY...NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH 10 TO 20 KT.
PATCHY FOG IN THE MORNING. CHANCE OF RAIN IN THE AFTERNOON. WAVES
1 TO 3 FT.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KT. CHANCE OF RAIN. WAVES
2 TO 4 FT.
.MONDAY...NORTH WINDS 10 TO 20 KT. CHANCE OF RAIN IN THE MORNING.
WAVES 3 TO 5 FT OCCASIONALLY TO 7FT.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT. WAVES SUBSIDING TO 2
TO 4 FT.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KT BACKING TO SOUTHWEST.
WAVES 1 TO 2 FT.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST 10 TO
20 KT. CHANCE OF RAIN AND SNOW. WAVES 2 TO 4 FT.

$$
LMZ761-210430-
MAFOR 2022 AMD/
MICHIGAN NORTH 14314 11314 11224 12324. CHANCE OF RAIN...DRIZZLE
AND FREEZING DRIZZLE. WAVES 1 TO 3 FT TONIGHT. WAVES 2 TO 4 FT
SATURDAY.

MICHIGAN SOUTH 11204 11304 12314 12324 11423 11420. CHANCE OF
RAIN AFTER MIDNIGHT TONIGHT. WAVES 1 TO 3 FT TONIGHT. WAVES 2 TO 4
FT SATURDAY.

$$

IZZI

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.