Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
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 120744
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
244 AM CDT SAT JUL 12 2014

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 ATLANTIC COAST
WILL SHIFT INTO THE ATLANTIC THIS MORNING...WHILE A TROUGH OF LOW PRESSURE
AVERAGING 29.9 INCHES AND FRONTAL BOUNDARY OVER THE CENTRAL PLAINS
SLOWLY MOVE EAST. THIS TROUGH AND FRONTAL BOUNDARY WILL MOVE EAST
THROUGH THE UPPER MIDWEST THROUGH MID DAY SATURDAY...THEN CONTINUE
EAST TOWARDS THE GREAT LAKES SATURDAY AFTERNOON AND EVENTUALLY
PUSH EAST ACROSS THE LAKE SATURDAY NIGHT. A SECONDARY TROUGH OF
LOW PRESSURE AVERAGING 29.9 INCHES WILL MOVE THROUGH THE GREAT
LAKES REGION SUNDAY WITH AN ASSOCIATED COLD FRONT. HIGH PRESSURE
OF 30.1 INCHES THEN EXPECTED TO BUILD OVER THE NORTHERN PLAINS
SUNDAY NIGHT INTO MONDAY..INCREASE TO 30.2 INCHES MONDAY
NIGHT...THEN DECREASE TO 30.0 INCHES AND EASE THROUGH THE GREAT
LAKES THROUGH WEDNESDAY.

LMZ261-362-364-366-563-565-567-868-121530-
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-
244 AM CDT SAT JUL 12 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTH WINDS 10 TO 20 KT...DIMINISHING TO 10 TO 15 KT IN
THE AFTERNOON. CHANCE OF THUNDERSTORMS AND SLIGHT CHANCE OF SHOWERS
THROUGH MID MORNING...THEN SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS LATE THIS MORNING. CHANCE OF SHOWERS AND
THUNDERSTORMS THIS AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
SUBSIDING TO 2 TO 4 FT IN THE AFTERNOON.
.TONIGHT...SOUTHWEST WINDS 10 TO 15 KT...BECOMING WEST. CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH THE EARLY OVERNIGHT...THEN
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE. WAVES 1 TO 3 FT.
.SUNDAY...WEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS IN THE
MORNING. WAVES 1 TO 3 FT.
.SUNDAY NIGHT...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES 1 TO
3 FT.
.MONDAY...WEST WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT. SLIGHT
CHANCE OF SHOWERS IN THE MORNING...THEN CHANCE OF SHOWERS IN THE
AFTERNOON. WAVES 1 TO 2 FT.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS.
WAVES 1 TO 3 FT.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS. WAVES
2 TO 4 FT.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING WEST. WAVES
1 TO 3 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-121530-
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-
244 AM CDT SAT JUL 12 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...SOUTH WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 3 FT.
.TONIGHT...SOUTH WINDS 10 TO 15 KT VEERING TO WEST. SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN SHOWERS AND THUNDERSTORMS
LIKELY OVERNIGHT. WAVES 1 TO 3 FT.
.SUNDAY...WEST WINDS 10 TO 15 KT. CHANCE OF THUNDERSTORMS AND
SLIGHT CHANCE OF SHOWERS IN THE MORNING. WAVES 1 TO 2 FT.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.MONDAY...WEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING...THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FT.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS.
WAVES 2 TO 4 FT.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SHOWERS. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY...NORTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.

$$

LMZ761-121530-
MAFOR 1209/
MICHIGAN NORTH 11520 11420 11510 12410 13610. CHANCE OF
THUNDERSTORMS EARLY THIS MORNING. CHANCE OF SHOWERS TODAY. CHANCE OF
SHOWERS AND THUNDERSTORMS TONIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT SUBSIDING TO 2 TO 4 FT TODAY. WAVES 1 TO 3 FT TONIGHT.

MICHIGAN SOUTH 14410 11410 12519 11629. CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY THIS MORNING. SHOWERS AND THUNDERSTORMS LIKELY
TONIGHT. WAVES 1 TO 3 FT.

$$

KMD




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