345
FZUS63 KMKX 010216
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
916 PM CDT MON MAR 31 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 30.1 INCHES WILL MOVE ACROSS THE REGION
OVERNIGHT AND TO THE EAST ON TUESDAY, WITH NORTH WINDS SHIFTING
TO THE EAST.
STRONG LOW PRESSURE AROUND 29.1 INCHES WILL DEVELOP IN THE CENTRAL
HIGH PLAINS TUESDAY, THEN SHIFT NORTHEAST INTO NORTHWEST IOWA
TUESDAY NIGHT AND WEST CENTRAL WISCONSIN ON WEDNESDAY. THIS SHOULD
BRING GUSTY SOUTHEASTERLY WINDS TUESDAY NIGHT INTO WEDNESDAY,
WITH GALES POSSIBLE. A GALE WATCH REMAINS IN EFFECT FOR MOST OF
THIS PERIOD.
THE LOW WILL THEN MOVE ACROSS WESTERN LAKE SUPERIOR WEDNESDAY
NIGHT AND INTO ONTARIO ON THURSDAY. GUSTY WINDS WILL SHIFT TO THE
SOUTHWEST WEDNESDAY NIGHT AND WEST ON THURSDAY, GRADUALLY
WEAKENING.
THUNDERSTORMS ARE POSSIBLE TUESDAY NIGHT ACROSS THE SOUTHERN
PORTIONS OF THE LAKE, AND ACROSS THE ENTIRE LAKE WEDNESDAY INTO
WEDNESDAY EVENING.
LMZ261-362-364-563-010930-
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-
916 PM CDT MON MAR 31 2025
STURGEON BAY WI TO POINT BETSIE MI NORTH...
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...
REST OF TONIGHT
NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO
15 KT. WAVES 3 TO 5 FT SUBSIDING TO 2 TO 4 FT.
TUESDAY
NORTHEAST WINDS 5 TO 10 KT BECOMING SOUTHEAST LATE IN
THE MORNING, THEN INCREASING TO 10 TO 15 KT EARLY IN THE
AFTERNOON BECOMING EAST LATE. WAVES 1 TO 2 FT.
TUESDAY NIGHT
EAST WINDS 10 TO 20 KT BECOMING SOUTHEAST TO 30
KT. CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES 2 TO 4 FT BUILDING TO
5 TO 8 FT OCCASIONALLY TO 10 FT.
WEDNESDAY
EAST GALES TO 40 KT BECOMING SOUTHEAST. RAIN AND
SNOW 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. 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 DIMINISHING TO
10 TO 15 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2 FT.
FRIDAY
NORTH WINDS 10 TO 15 KT DIMINISHING TO 5 TO 10 KT.
WAVES 1 TO 2 FT.
SATURDAY
NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH. WAVES
1 TO 3 FT.
LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-010930-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
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 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 PENTWATER TO MANISTEE MI 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-
916 PM CDT MON MAR 31 2025
STURGEON BAY WI TO POINT BETSIE MI SOUTH...
...GALE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY
AFTERNOON...
REST OF TONIGHT
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST
10 TO 15 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO
2 TO 4 FT.
TUESDAY
EAST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 2 TO 4 FT.
TUESDAY NIGHT
EAST WINDS 15 TO 25 KT BECOMING SOUTHEAST GALES
TO 40 KT. SNOW LIKELY WITH A CHANCE OF RAIN IN THE EVENING, THEN
RAIN SHOWERS, SNOW WITH A CHANCE OF RAIN OVERNIGHT. WAVES 2 TO
4 FT BUILDING TO 10 TO 14 FT OCCASIONALLY TO 18 FT.
WEDNESDAY
SOUTHEAST GALES TO 40 KT BECOMING SOUTH TO 30 KT IN
THE AFTERNOON. RAIN SHOWERS. WAVES 10 TO 14 FT OCCASIONALLY TO
18 FT.
WEDNESDAY NIGHT
SOUTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. RAIN SHOWERS LIKELY, CHANCE OF RAIN AND THUNDERSTORMS 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 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5 FT.
THURSDAY NIGHT
NORTH WINDS 10 TO 15 KT. WAVES 2 TO 4 FT
SUBSIDING TO 1 TO 2 FT.
FRIDAY
NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH 10 TO 20 KT.
WAVES 2 TO 4 FT.
SATURDAY
NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH. CHANCE OF
RAIN. WAVES 3 TO 5 FT.
LMZ761-010930-
MAFOR 0104/
MICHIGAN NORTH 11820 11110 11100 11200 12210 11220 11230. A
CHANCE OF SNOW TUESDAY EVENING. WAVES 2 TO 4 FEET SUBSIDING TO 1
TO 3 FEET OVERNIGHT. WAVES 2 FEET OR LESS TUESDAY. WAVES 1 TO 3
FEET BUILDING TO 2 TO 4 FEET TUESDAY EVENING.
MICHIGAN SOUTH 11810 12110 11200 12210 11227 11237. A CHANCE OF
RAIN TUESDAY EVENING. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET
OVERNIGHT. WAVES 1 TO 3 FEET TUESDAY. WAVES 1 TO 3 FEET BUILDING
TO 3 TO 5 FEET TUESDAY EVENING.
WOOD
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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