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

000
FZUS63 KLOT 030747
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
247 AM CDT SUN MAY 3 2015

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...LOW PRESSURE OF 29.3 INCHES OVER HUDSON BAY TODAY
WILL ADVANCE A COLD FRONT ACROSS THE UPPER MISSISSIPPI VALLEY.
THIS FRONT WILL MOVE SOUTHWARD ACROSS LAKE MICHIGAN DURING LATE
TONIGHT AND MONDAY...AVERAGING AROUND 29.9 INCHES AS IT DOES. AS
THE FRONT STALLS JUST SOUTH OF THE GREAT LAKES REGION MONDAY NIGHT
AND TUESDAY...HIGH PRESSURE OF 30.3 INCHES WILL EXPAND OVER THE
NORTHERN LAKES. THE FRONT WILL MOVE BACK NORTHWARD AS A WARM FRONT
WHEN THE HIGH DEPARTS TUESDAY NIGHT INTO WEDNESDAY. LOW PRESSURE
AROUND 29.6 INCHES WILL MOVE FROM THE CENTRAL PLAINS TO ONTARIO
DURING THE LATTER PART OF THE WEEK AND STEER A COLD FRONT INTO THE
LAKES REGION SOMETIME EARLY NEXT WEEKEND.


LMZ261-362-364-366-563-565-567-868-031615-
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-
247 AM CDT SUN MAY 3 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT FROM
LATE MORNING ON. A FEW 30 KT GUSTS THIS AFTERNOON. SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON. WAVES 2 TO 4 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT BY EARLY AFTERNOON.
.TONIGHT...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST 10 TO
20 KT AFTER MIDNIGHT...AND THEN WEST NEAR DAYBREAK. SHOWERS AND
THUNDERSTORMS. WAVES SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.MONDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH FROM LATE
MORNING ON. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING.
WAVES 2 TO 4 FT.
.MONDAY NIGHT...NORTHEAST WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 1 TO 3 FT.
.TUESDAY...NORTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.TUESDAY NIGHT...EAST WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 15 KT BECOMING EAST. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FT.
.THURSDAY...SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-031615-
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-
247 AM CDT SUN MAY 3 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT FROM
LATE MORNING ON. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT BY EARLY AFTERNOON.
.TONIGHT...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST 10 TO
20 KT AFTER MIDNIGHT. SHOWERS AND THUNDERSTORMS LIKELY FROM LATE
EVENING ON. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KT VEERING TO NORTH LATE IN THE
MORNING. SHOWERS AND THUNDERSTORMS LIKELY. WAVES 2 TO 4 FT.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST.
SHOWERS AND THUNDERSTORMS LIKELY. WAVES 2 TO 4 FT.
.TUESDAY...EAST WINDS 10 TO 20 KT BECOMING NORTHEAST. SHOWERS AND
THUNDERSTORMS LIKELY IN THE MORNING...THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 2 TO 4 FT.
.TUESDAY NIGHT...EAST WINDS 10 TO 15 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 3 FT.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.
.THURSDAY...SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.

$$

LMZ761-031615-
MAFOR 0310/
MICHIGAN NORTH 12420 11430 12430 19440 13529. WAVES 2 TO 4 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT BY EARLY AFTERNOON.
WAVES SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT AFTER MIDNIGHT.

MICHIGAN SOUTH 12420 13430 11520 12529. WAVES 2 TO 4 FT BUILDING
TO 3 TO 5 FT OCCASIONALLY TO 7 FT BY EARLY AFTERNOON AND
PERSISTING THROUGH TONIGHT.

$$

MTF


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