457
FZUS63 KMKX 011409
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
909 AM CDT TUE APR 1 2025
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 OF THE HIGHEST 1/3 OF THE WAVE, ALONG WITH THE
AVERAGE HEIGHT OF THE HIGHEST 10% OF THE WAVES WHICH WILL
OCCASIONALLY BE ENCOUNTERED.
SYNOPSIS
HIGH PRESSURE AROUND 30.3 INCHES WILL CONTINUE TO PUSH EASTWARD
TODAY INTO TONIGHT IN ADVANCE OF AN APPROACHING LOW. THE LOW
AROUND 29.1 INCHES WILL LIFT NORTHEAST FROM THE CENTRAL PLAINS
LATE TONIGHT TO LAKE SUPERIOR WEDNESDAY NIGHT. STRONG SOUTHEAST
WINDS WILL DEVELOP TONIGHT AHEAD OF THE LOW, WITH GALES EXPECTED
INTO WEDNESDAY. THE WINDS WILL BECOME SOUTH TO SOUTHWEST LATER
WEDNESDAY INTO WEDNESDAY NIGHT AND REMAIN GUSTY, THOUGH BELOW GALE
FORCE. WINDS WILL BECOME LIGHTER BY FRIDAY MORNING, AS HIGH
PRESSURE AROUND 30.4 INCHES BUILDS INTO THE NORTHERN GREAT LAKES.
LMZ261-362-364-563-012115-
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
909 AM CDT TUE APR 1 2025
STURGEON BAY WI TO POINT BETSIE MI NORTH...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
AFTERNOON...
REST OF TODAY
SOUTHEAST WINDS 5 TO 10 KT INCREASING TO 10 TO
15 KT EARLY THIS AFTERNOON, THEN BECOMING EAST 10 TO 20 KT LATE.
WAVES 1 TO 2 FT.
TONIGHT
EAST WINDS 10 TO 20 KT BECOMING SOUTHEAST GALES TO
35 KT. CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES 1 TO 3 FT BUILDING
TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
WEDNESDAY
SOUTHEAST GALES TO 40 KT DIMINISHING TO GALES TO
35 KT. SNOW AND RAIN SHOWERS IN THE MORNING, THEN RAIN SHOWERS IN
THE AFTERNOON. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
WEDNESDAY NIGHT
SOUTH WINDS TO 30 KT BECOMING SOUTHWEST.
CHANCE OF RAIN SHOWERS IN THE EVENING. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
THURSDAY
SOUTHWEST WINDS TO 30 KT BECOMING WEST. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT.
THURSDAY NIGHT
NORTHWEST WINDS 10 TO 20 KT BECOMING NORTH
10 TO 15 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2 FT.
FRIDAY
NORTH WINDS 5 TO 10 KT BECOMING NORTHEAST. WAVES 1 FT
OR LESS.
SATURDAY
NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH 10 TO
20 KT. WAVES 1 TO 3 FT.
LMZ366-565-567-868-012115-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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-
909 AM CDT TUE APR 1 2025
STURGEON BAY WI TO POINT BETSIE MI SOUTH TO SHEBOYGAN WI TO
PENTWATER MI...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
AFTERNOON...
REST OF TODAY
SOUTHEAST WINDS 10 TO 15 KT BECOMING EAST. WAVES
1 TO 3 FT.
TONIGHT
EAST WINDS 10 TO 20 KT BECOMING SOUTHEAST GALES TO
40 KT. CHANCE OF RAIN AND SNOW IN THE EVENING, THEN SNOW AND RAIN
SHOWERS OVERNIGHT. WAVES 1 TO 3 FT BUILDING TO 8 TO 11 FT
OCCASIONALLY TO 14 FT.
WEDNESDAY
SOUTHEAST GALES TO 40 KT DIMINISHING TO 30 KT. RAIN
SHOWERS. WAVES 8 TO 12 FT OCCASIONALLY TO 16 FT SUBSIDING TO 8 TO
11 FT OCCASIONALLY TO 14 FT.
WEDNESDAY NIGHT
SOUTH WINDS TO 30 KT BECOMING SOUTHWEST 15 TO
25 KT. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT SUBSIDING TO 4 TO
7 FT OCCASIONALLY TO 9 FT.
THURSDAY
WEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
THURSDAY NIGHT
NORTHWEST WINDS 5 TO 10 KT BECOMING NORTH.
WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2 FT.
FRIDAY
NORTHEAST WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
WAVES 1 TO 2 FT.
SATURDAY
NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH. WAVES
2 TO 4 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-012115-
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-
909 AM CDT TUE APR 1 2025
SHEBOYGAN WI TO PENTWATER MI SOUTH...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
AFTERNOON...
REST OF TODAY
EAST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 2 TO 4 FT.
TONIGHT
EAST WINDS 10 TO 20 KT BECOMING SOUTHEAST GALES TO
40 KT. CHANCE OF RAIN AND SNOW IN THE EVENING, THEN RAIN SHOWERS
WITH SNOW SHOWERS LIKELY OVERNIGHT. WAVES 2 TO 4 FT BUILDING TO
8 TO 12 FT OCCASIONALLY TO 16 FT.
WEDNESDAY
SOUTHEAST GALES TO 45 KT DIMINISHING TO GALES TO
40 KT LATE IN THE MORNING, THEN DIMINISHING TO GALES TO 35 KT
EARLY IN THE AFTERNOON BECOMING SOUTH TO 30 KT LATE. RAIN SHOWERS
IN THE MORNING, THEN RAIN SHOWERS WITH A CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT
SUBSIDING TO 8 TO 11 FT OCCASIONALLY TO 14 FT.
WEDNESDAY NIGHT
SOUTHWEST WINDS TO 30 KT DIMINISHING TO 10 TO
20 KT OVERNIGHT. CHANCE OF RAIN SHOWERS IN THE EVENING. WAVES
7 TO 10 FT OCCASIONALLY TO 13 FT SUBSIDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
THURSDAY
WEST WINDS 10 TO 20 KT. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT.
THURSDAY NIGHT
NORTH WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO
15 KT. WAVES 1 TO 3 FT.
FRIDAY
NORTHEAST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 1 TO 3 FT.
SATURDAY
NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH. CHANCE OF
RAIN. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
LMZ761-012115-
MAFOR 0116/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11310 11210 11220 11330
14357. A CHANCE OF RAIN AND SNOW THIS EVENING. WAVES 2 FEET OR
LESS THIS AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 7 TO 10 FEET
TONIGHT. WAVES 9 TO 12 FEET WEDNESDAY MORNING.
MICHIGAN SOUTH...GALE WARNING IN EFFECT...11210 12220 11230 11350
11357 11366 11356. A CHANCE OF RAIN AND SNOW THIS EVENING. WAVES
1 TO 3 FEET THIS AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 9 TO 12
FEET TONIGHT. WAVES 10 TO 13 FEET WEDNESDAY MORNING.
WAGNER
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/MKX/GLFTABLE
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
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