189
FZUS63 KMKX 011413
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
913 AM CDT WED APR 1 2026
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
NO MAJOR CHANGES TO THE GOING FORECAST AT THIS TIME.
BRISK NORTH TO NORTHEAST WINDS ARE EXPECTED TODAY AS HIGH
PRESSURE AROUND 30.7 INCHES BUILDS OVER ONTARIO. BREEZY EASTERLY
WINDS ARE THEN EXPECTED TONIGHT INTO THURSDAY BETWEEN THE HIGH
EAST OF JAMES BAY IN CANADA, AND LOW PRESSURE OF 29.4 INCHES
LIFTING FROM THE CENTRAL PLAINS INTO WISCONSIN. GUSTS APPEAR MORE
LIKELY TO REACH GALE FORCE OVER FAR NORTHERN LAKE MICHIGAN ON
THURSDAY AND THUS A GALE WATCH CONTINUES FOR THURSDAY MORNING
THROUGH MOST OF THE AFTERNOON.
THE BREEZY EASTERLY WINDS WILL SHIFT SOUTHERLY FROM SOUTH TO
NORTH ACROSS THE LAKE THURSDAY AFTERNOON INTO THE EVENING WITH THE
PASSAGE OF A WARM FRONT, THEN FOLLOWED BY THE COLD FRONT WITH
WINDS SHIFTING WESTERLY LATE THURSDAY NIGHT. PRECIPITATION IS
EXPECTED WEDNESDAY NIGHT THROUGH THURSDAY WITH A CHANCE FOR SOME
FREEZING RAIN TOWARD FAR NORTHERN PARTS OF THE LAKE, PARTICULARLY
THURSDAY MORNING. THEN EXPECT SOME STORM CHANCES PRIMARILY OVER
THE SOUTHERN HALF OF THE LAKE THURSDAY AFTERNOON AND EVENING AS
THE 29.5 INCH LOW PUSHES THROUGH THE NORTHERN LAKE THURSDAY NIGHT.
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-
913 AM CDT WED APR 1 2026
STURGEON BAY WI TO POINT BETSIE MI NORTH...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY
AFTERNOON...
REST OF TODAY
NORTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
TONIGHT
EAST WINDS 15 TO 25 KT INCREASING TO 30 KT. SLIGHT
CHANCE OF SNOW SHOWERS IN THE EVENING, THEN CHANCE OF LIGHT
FREEZING RAIN AND SLIGHT CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES
4 TO 7 FT OCCASIONALLY TO 9 FT.
THURSDAY
EAST GALES TO 35 KT. RAIN SHOWERS, FREEZING RAIN,
LIGHT SLEET AND SNOW SHOWERS IN THE MORNING, THEN RAIN SHOWERS
AND FREEZING RAIN IN THE AFTERNOON. WAVES 6 TO 9 FT OCCASIONALLY
TO 12 FT BUILDING TO 7 TO 10 FT OCCASIONALLY TO 13 FT.
THURSDAY NIGHT
SOUTHEAST GALES TO 35 KT BECOMING SOUTHWEST.
RAIN SHOWERS, CHANCE OF THUNDERSTORMS AND FREEZING RAIN IN THE
EVENING, THEN CHANCE OF RAIN SHOWERS AND THUNDERSTORMS OVERNIGHT.
WAVES 8 TO 11 FT OCCASIONALLY TO 14 FT.
FRIDAY
WEST WINDS TO 30 KT BECOMING NORTHWEST 10 TO 20 KT IN
THE AFTERNOON. WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT SUBSIDING TO
4 TO 6 FT OCCASIONALLY TO 8 FT.
FRIDAY NIGHT
NORTHEAST WINDS 15 TO 25 KT BECOMING EAST. CHANCE
OF RAIN SHOWERS AND FREEZING RAIN LIKELY. WAVES 2 TO 4 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
SATURDAY
EAST WINDS TO 30 KT. CHANCE OF RAIN SHOWERS. WAVES
4 TO 7 FT OCCASIONALLY TO 9 FT.
SUNDAY
NORTHWEST GALES TO 35 KT DIMINISHING TO 30 KT. WAVES
7 TO 10 FT OCCASIONALLY TO 13 FT.
LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-012115-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM 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-
913 AM CDT WED APR 1 2026
STURGEON BAY WI TO POINT BETSIE MI SOUTH...
REST OF TODAY
NORTHEAST WINDS 15 TO 25 KT. SLIGHT CHANCE OF
RAIN SHOWERS LATE THIS MORNING. WAVES 5 TO 8 FT OCCASIONALLY TO
10 FT.
TONIGHT
NORTHEAST WINDS 15 TO 25 KT BECOMING EAST TO 30 KT.
SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING, THEN CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 5 TO
8 FT OCCASIONALLY TO 10 FT.
THURSDAY
EAST GALES TO 35 KT BECOMING SOUTH. RAIN SHOWERS IN
THE MORNING, THEN RAIN SHOWERS WITH A CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
THURSDAY NIGHT
SOUTH GALES TO 35 KT BECOMING SOUTHWEST. RAIN
SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE EVENING, THEN
CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 8 TO 12 FT OCCASIONALLY
TO 16 FT.
FRIDAY
WEST WINDS 15 TO 25 KT VEERING TO NORTHEAST 10 TO 15 KT
IN THE AFTERNOON. WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT SUBSIDING
TO 3 TO 5 FT.
FRIDAY NIGHT
NORTHEAST WINDS 15 TO 25 KT BECOMING EAST. RAIN
SHOWERS WITH A CHANCE OF THUNDERSTORMS. WAVES 2 TO 4 FT BUILDING
TO 3 TO 5 FT.
SATURDAY
SOUTH WINDS 15 TO 25 KT VEERING TO WEST. CHANCE OF
RAIN SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
SUNDAY
NORTHWEST WINDS TO 30 KT. WAVES 8 TO 12 FT OCCASIONALLY
TO 16 FT.
LMZ761-012115-
MAFOR 0116/
MICHIGAN NORTH 13130 12230 11240 12257. A CHANCE OF FREEZING RAIN
OVERNIGHT. WAVES 4 TO 7 FEET THIS AFTERNOON. WAVES 4 TO 7 FEET
SUBSIDING TO 3 TO 6 FEET TONIGHT. WAVES 5 TO 9 FEET THURSDAY
MORNING.
MICHIGAN SOUTH 13130 11230 11240 11246 11256 11356. WAVES 5 TO 8
FEET.
CMILLER
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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