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 291344
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
844 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 WEDNESDAY
AFTERNOON.  MEANWHILE...LOW PRESSURE OF 29.9 INCHES WILL DEVELOP
ACROSS FAR EASTERN ONTARIO BY LATE THIS AFTERNOON AND MOVE TO
NEAR LAKE HURON BY TONIGHT. THIS LOW WILL STEER A WEAK 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. THESE LOWS WILL EVENTUALLY BECOME A
COMBINED LOW NEAR 29.8 INCHES THAT WILL MOVE SLOWLY INTO QUEBEC ON
THURSDAY AND INTO FRIDAY. A WEAK COOL FRONT EXTENDING FROM THIS
LOW WILL MOVE SOUTHWARD ACROSS THE GREAT LAKES REGION FRIDAY
NIGHT. HIGH PRESSURE OF 30.2 INCHES WILL THEN BUILD OVER THE GREAT
LAKES REGION DURING SATURDAY NIGHT INTO SUNDAY.

LMZ261-362-364-366-563-565-567-868-292130-
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-
844 AM CDT TUE JUL 29 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TODAY...NORTHWEST WINDS 10 TO 15 KT THIS
MORNING...BECOMING VARIABLE 5 TO 10 KT THIS AFTERNOON. SCATTERED
SHOWERS AND THUNDERSTORMS THIS AFTERNOON. 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.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-292130-
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-
844 AM CDT TUE JUL 29 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TODAY...NORTHWEST WINDS 10 TO 15 KT. ISOLATED SHOWERS
AND THUNDERSTORMS FROM LATE MORNING ON. 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 2 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.

$$
LMZ761-292130-
MAFOR 2915/
MICHIGAN NORTH 11710 12900 11700 14800. SCATTERED SHOWERS WITH THUNDERSTORMS
THIS AFTERNOON. WAVES 1 TO 3 FT THIS AFTERNOON SUBSIDING TO 1 TO 2
FT TONIGHT THROUGH WEDNESDAY MORNING.

MICHIGAN SOUTH 10610 13710 12610 12710 11810. SCATTERED SHOWERS
WITH ISOLATED THUNDERSTORMS THIS AFTERNOON. WAVES 1 TO 3 FT TODAY
SUBSIDING TO 1 TO 2 FT TONIGHT THROUGH WEDNESDAY MORNING.

$$

KMD





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