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
000
FZUS63 KLOT 042046
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
246 PM CST WED MAR 4 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...HIGH PRESSURE OF 30.5 INCHES OVER THE NORTHERN PLAINS WILL
STRENGTHEN TO 30.7 INCHES AS IT CONTINUES SOUTHEAST
ACROSS THE CENTRAL PLAINS AND INTO THE LOWER OHIO VALLEY BY LATE
THURSDAY. THE HIGH WILL THEN MOVE OFF TO THE EAST FRIDAY AS
LOW PRESSURE OF 29.5 INCHES MOVES ACROSS SOUTHERN HUDSON BAY. THIS
LOW WILL TRAIL A COLD FRONT ACROSS THE UPPER MIDWEST AND GREAT
LAKES REGION ON SATURDAY. ANOTHER LOW OF 29.7 INCHES WILL TRACK
THROUGH SOUTHERN ONTARIO INTO QUEBEC MONDAY MORNING.

LMZ261-362-364-366-563-565-567-868-050500-
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-
246 PM CST WED MAR 4 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TONIGHT...NORTHWEST WINDS TO 30 KT EARLY DIMINISHING TO 15 TO 25
KT IN THE EVENING...THEN DIMINISHING TO 10 TO 15 KT LATE. SLIGHT
CHANCE OF SNOW SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT OVERNIGHT.
.THURSDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING WEST IN THE
AFTERNOON. SLIGHT CHANCE OF SNOW SHOWERS IN THE MORNING. WAVES
2 TO 4 FT.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT OVERNIGHT. WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT OVERNIGHT.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KT INCREASING TO 30 KT IN THE
AFTERNOON. CHANCE OF SNOW SHOWERS. FREEZING SPRAY LIKELY. WAVES 7
TO 10 FT OCCASIONALLY TO 13 FT.
.FRIDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST 10 TO
20 KT OVERNIGHT. CHANCE OF SNOW SHOWERS. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT
OVERNIGHT.
.SATURDAY...WEST WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO 15 KT
IN THE AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FT.
.SATURDAY NIGHT...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST.
SLIGHT CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FT.
.SUNDAY...WEST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT IN THE
AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FT.
.MONDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO 20 KT
IN THE AFTERNOON. SLIGHT CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FT.


WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-050500-
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-
246 PM CST WED MAR 4 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TONIGHT...NORTHWEST WINDS TO 30 KT EARLY DIMINISHING TO 15 TO 25
KT IN THE EVENING...THEN DIMINISHING TO 10 TO 20 KT LATE. CHANCE
OF SNOW SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING
TO 4 TO 6 FT OCCASIONALLY TO 8 FT OVERNIGHT.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO 15 KT
LATE. CHANCE OF SNOW SHOWERS IN THE MORNING...THEN SLIGHT CHANCE
OF SNOW SHOWERS IN THE AFTERNOON. WAVES 2 TO 4 FT.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT LATE. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO
7 FT OVERNIGHT.
.FRIDAY...SOUTHWEST WINDS TO 30 KT. SLIGHT CHANCE OF SNOW
SHOWERS. FREEZING SPRAY LIKELY. WAVES 6 TO 9 FT OCCASIONALLY TO
11 FT.
.FRIDAY NIGHT...SOUTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT OVERNIGHT. SLIGHT CHANCE OF SNOW SHOWERS. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT
OVERNIGHT.
.SATURDAY...WEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT IN
THE AFTERNOON. SLIGHT CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FT.
.SATURDAY NIGHT...WEST WINDS 10 TO 15 KT. SLIGHT CHANCE OF SNOW
SHOWERS. WAVES 1 TO 3 FT.
.SUNDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO 20 KT
IN THE AFTERNOON. SLIGHT CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FT.
.MONDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO 20 KT
IN THE AFTERNOON. WAVES 1 TO 3 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ761-050500-
MAFOR 0422/
MICHIGAN NORTH 11740 12730 11720 12710 12610. FREEZING SPRAY LATE
THIS AFTERNOON. CHANCE OF SNOW SHOWERS TONIGHT. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT
TONIGHT. WAVES 2 TO 4 FT THURSDAY.

MICHIGAN SOUTH 11740 13730 13720 11620. FREEZING SPRAY LATE THIS
AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY
TO 10 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT TONIGHT.
WAVES 2 TO 4 FT THURSDAY.

$$

KMD







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