610
FZUS63 KMKX 220910
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
310 AM CST WED JAN 22 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
LOW PRESSURE AROUND 29.7 INCHES OVER FAR NORTHERN MINNESOTA EARLY
THIS MORNING WILL GRADUALLY WEAKEN AS IT TRACKS ACROSS THE
NORTHERN GREAT LAKES INTO TONIGHT. THE STRONG PRESSURE CHANGE
BETWEEN THE LOW AND ARCTIC HIGH OVER THE OHIO VALLEY, WILL RESULT
IN SOUTHWEST GALES DEVELOPING EARLY THIS MORNING OVER THE ENTIRE
OPEN LAKE, LASTING INTO THE EARLY AFTERNOON. A COLD FRONT WILL
THEN SHIFT THE WINDS TO BRISK NORTHWESTERLY LATE THIS EVENING AND
OVERNIGHT AND CONTINUE THROUGH THURSDAY. A HEAVY FREEZING SPRAY
WARNING WILL CONTINUE THROUGH THE DAY DUE TO THE FRIGID
TEMPERATURES, HIGH WINDS, AND HIGH WAVE HEIGHTS.
LMZ261-362-364-366-563-565-567-868-221615-
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-
310 AM CST WED JAN 22 2025
SHEBOYGAN WI TO PENTWATER MI NORTH...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS
AFTERNOON...
..GALE WARNING IN EFFECT UNTIL 1 PM CST THIS AFTERNOON
TODAY
SOUTHWEST GALES TO 35 KT DIMINISHING TO 30 KT. FREEZING
SPRAY. SNOW LIKELY THIS MORNING, THEN CHANCE OF SNOW THIS
AFTERNOON. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT SUBSIDING TO
8 TO 11 FT OCCASIONALLY TO 14 FT.
TONIGHT
WEST WINDS 15 TO 25 KT BECOMING NORTHWEST TO 30 KT.
CHANCE OF SNOW IN THE EVENING, THEN CHANCE OF FLURRIES AND SLIGHT
CHANCE OF LIGHT FREEZING RAIN OVERNIGHT. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO
8 FT.
THURSDAY
NORTH WINDS TO 30 KT BECOMING NORTHWEST 15 TO 25 KT.
FREEZING SPRAY IN THE MORNING. WAVES 4 TO 7 FT OCCASIONALLY TO
9 FT.
THURSDAY NIGHT
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST.
WAVES 3 TO 5 FT SUBSIDING TO 2 TO 4 FT.
FRIDAY
WEST WINDS 15 TO 25 KT BECOMING SOUTHWEST TO 30 KT.
WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT.
FRIDAY NIGHT
SOUTHWEST GALES TO 35 KT. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
SATURDAY
SOUTHWEST WINDS TO 30 KT BECOMING WEST. WAVES 5 TO
8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO
9 FT.
SUNDAY
WEST WINDS TO 30 KT. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-221615-
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-
310 AM CST WED JAN 22 2025
SHEBOYGAN WI TO PENTWATER MI SOUTH...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS
AFTERNOON...
..GALE WARNING IN EFFECT UNTIL 1 PM CST THIS AFTERNOON
TODAY
SOUTHWEST GALES TO 35 KT DIMINISHING TO 30 KT. HEAVY
FREEZING SPRAY THIS MORNING, THEN FREEZING SPRAY THIS AFTERNOON.
CHANCE OF SNOW. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT.
TONIGHT
SOUTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT
LATE IN THE EVENING, THEN BECOMING WEST AFTER MIDNIGHT BECOMING
NORTHWEST 10 TO 20 KT LATE. SNOW LIKELY IN THE EVENING, THEN
CHANCE OF SNOW OVERNIGHT. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
THURSDAY
NORTHWEST WINDS 15 TO 25 KT. FREEZING SPRAY IN THE
MORNING. CHANCE OF SNOW. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
THURSDAY NIGHT
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO
15 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO
5 FT.
FRIDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES 2 TO
4 FT BUILDING TO 3 TO 5 FT.
FRIDAY NIGHT
SOUTHWEST WINDS TO 30 KT. WAVES 6 TO 9 FT
OCCASIONALLY TO 12 FT.
SATURDAY
SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST TO 30 KT.
WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT.
SUNDAY
WEST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT. WAVES
4 TO 7 FT OCCASIONALLY TO 9 FT.
LMZ761-221615-
MAFOR 2211/
MICHIGAN NORTH...GALE WARNING IN EFFECT...12557 11547 11540 11530
11630 11720 11730. WAVES 8 TO 11 FEET BUILDING TO 9 TO 13 FEET,
THEN SUBSIDING TO 7 TO 10 FEET TODAY. WAVES 5 TO 9 FEET SUBSIDING
TO 3 TO 6 FEET TONIGHT.
MICHIGAN SOUTH...GALE WARNING IN EFFECT...11452 11552 11557 11540
11530 11537 11637 11720. WAVES 8 TO 12 FEET BUILDING TO 9 TO 13
FEET, THEN SUBSIDING TO 8 TO 11 FEET TODAY. WAVES 7 TO 10 FEET
SUBSIDING TO 3 TO 6 FEET TONIGHT.
GEHRING
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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