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 290748
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
248 AM CDT TUE JUL 29 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 ACROSS THE NORTHERN AND
CENTRAL PLAINS WILL GRADUALLY WEAKEN TO 30.0 INCHES BY DAYBREAK
WEDNESDAY. MEANWHILE...LOW PRESSURE OF 29.9 INCHES WILL DEVELOP
ACROSS FAR EASTERN ONTARIO BY LATE AFTERNOON AND MOVE TO NEAR LAKE
HURON BY TONIGHT. THIS LOW WILL STEER A COOL FRONT SOUTHWARD DOWN
THE LAKE TONIGHT INTO EARLY WEDNESDAY MORNING. ANOTHER LOW OF
SIMILAR MAGNITUDE WILL MOVE SOUTHWARD AND MERGE WITH THIS LOW ON
WEDNESDAY...WITH A COMBINED LOW NEAR 29.8 INCHES EXPECTED TO MOVE
SLOWLY INTO QUEBEC ON THURSDAY AND INTO FRIDAY. A WEAK COOL FRONT
EXTENDING FROM THIS LOW WILL MOVE SOUTHWARD ACROSS THE LAKES
REGION DURING OR NEAR FRIDAY NIGHT. HIGH PRESSURE OF 30.2 INCHES
WILL THEN BUILD OVER THE GREAT LAKES REGION DURING SATURDAY NIGHT
INTO SUNDAY.


LMZ261-362-364-366-563-565-567-868-291545-
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-
248 AM CDT TUE JUL 29 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...NORTHWEST WINDS 10 TO 15 KT BECOMING VARIABLE 5 TO 10 KT
BY EARLY AFTERNOON. SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS.
WAVES 1 TO 2 FT.
.TONIGHT...NORTHWEST WINDS 5 TO 10 KT BECOMING NORTH FROM LATE
EVENING ON. ISOLATED SHOWERS AND THUNDERSTORMS THROUGH EARLY
EVENING. WAVES 1 TO 2 FT.
.WEDNESDAY...NORTH WINDS 5 TO 10 KT BECOMING SOUTHWEST IN THE
AFTERNOON. WAVES 1 TO 2 FT.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FT.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF
SHOWERS. WAVES 1 TO 2 FT.
.FRIDAY...SOUTH WINDS 5 TO 10 KT BECOMING NORTHEAST FRIDAY NIGHT.
SLIGHT CHANCE OF SHOWERS. WAVES 1 TO 2 FT.
.SATURDAY...NORTHEAST WINDS 5 TO 10 KT. WAVES AROUND 1 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-291545-
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-
248 AM CDT TUE JUL 29 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...WEST WINDS 10 TO 15 KT BECOMING NORTHWEST BY
DAYBREAK...THEN BECOMING WEST AGAIN LATE IN THE AFTERNOON.
ISOLATED SHOWERS THIS MORNING...THEN SCATTERED SHOWERS AND
THUNDERSTORMS THIS AFTERNOON. WAVES 1 TO 3 FT.
.TONIGHT...WEST WINDS 10 TO 15 KT BECOMING NORTHWEST AFTER
MIDNIGHT. ISOLATED SHOWERS AND THUNDERSTORMS THROUGH EARLY
EVENING...THEN SLIGHT CHANCE OF SHOWERS. WAVES 1 TO 2 FT.
.WEDNESDAY...NORTH WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 10 KT BECOMING SOUTHWEST.
WAVES 1 TO 2 FT.
.THURSDAY...WEST WINDS 10 TO 15 KT VEERING TO SOUTH. SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 3
FT.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.FRIDAY...SOUTHWEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.SATURDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH. SLIGHT
CHANCE OF SHOWERS. WAVES 1 TO 3 FT.

$$

LMZ761-291545-
MAFOR 2909/
MICHIGAN NORTH 13710 12900 11700 12800. SCATTERED SHOWERS WITH
ISOLATED THUNDERSTORMS TODAY. WAVES 1 TO 2 FT.

MICHIGAN SOUTH 11610 13710 13610 11710. SCATTERED SHOWERS AND
THUNDERSTORMS THIS AFTERNOON. WAVES 1 TO 3 FT TODAY SUBSIDING TO
1 TO 2 FT TONIGHT.

$$

MTF







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