067
FZUS63 KMKX 011349
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
849 AM CDT SAT NOV 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
LOW PRESSURE AROUND 28.7 INCHES IS CENTERED OVER THE CANADIAN
MARITIMES THIS MORNING. A SURFACE FRONT EXTENDS WEST FROM THE LOW,
AND IS SLOWLY WORKING SOUTH ACROSS THE WATERS. WINDS ARE THUS OUT
OF THE WEST-NORTHWEST OVER SOUTHERN LAKE MICHIGAN AND NORTHERLY
FURTHER NORTH. AN UPPER DISTURBANCE WILL COMBINE WITH THE FRONT TO
SUPPORT CONTINUED POTENTIAL FOR RAIN SHOWERS THROUGH TODAY, WITH
EMBEDDED THUNDERSTORMS POSSIBLE OVER THE SOUTHERN HALF OF THE
LAKE. WATERSPOUTS MAY ACCOMPANY DEEPER SHOWERS AND ANY STORMS,
PARTICULARLY FROM PREDAWN THROUGH EARLY EVENING. RADAR TRENDS WILL
BE MONITORED, WITH HEADLINES BEING ISSUED IF NECESSARY. WINDS,
ALONG WITH PRECIPITATION CHANCES, WILL DECREASE TONIGHT AS HIGH
PRESSURE AROUND 30.2 INCHES MOVES FROM THE GREAT PLAINS INTO THE
MIDDLE MISSISSIPPI RIVER VALLEY.
SOUTHWEST WINDS WILL QUICKLY INCREASE DURING THE DAY ON SUNDAY,
WHEN LOW PRESSURE AROUND 29.2 INCHES IS FORECAST TO MOVE INTO
ONTARIO FROM THE CANADIAN GREAT PLAINS. WINDS WILL BECOME GUSTY
SUNDAY NIGHT AS THE LOW MOVES INTO THE HUDSON BAY. GALES ARE
EXPECTED DURING THIS TIME FRAME, PARTICULARLY OVER THE NORTHERN
HALF OF LAKE MICHIGAN. A GALE WATCH IS NOW IN EFFECT BETWEEN 3 PM
CST SUNDAY AND 6 AM CST MONDAY GIVEN THIS POTENTIAL. WINDS WILL
TURN OUT OF THE WEST-NORTHWEST AS A COLD FRONT CROSSES THE WATERS
MONDAY MORNING AND AFTERNOON, REMAINING GUSTY INTO THE EARLY
EVENING. A FEW GALES WILL REMAIN POSSIBLE DURING THIS TIME FRAME,
BUT AREN'T EXPECTED TO BE AS WIDESPREAD COMPARED TO SUNDAY
EVENING/NIGHT. AREAS OF WIDESPREAD RAIN ARE EXPECTED AHEAD OF THE
PASSING LOW AND COLD FRONT SUNDAY NIGHT INTO MONDAY AFTERNOON.
WATERSPOUTS AREN'T ANTICIPATED AT THIS TIME, THOUGH TRENDS WILL BE
MONITORED IN COMING FORECASTS. WINDS WILL TAPER LATE MONDAY NIGHT
THROUGH TUESDAY AS HIGH PRESSURE CROSSES LAKE MICHIGAN.
LMZ261-362-364-366-563-565-567-868-012130-
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-
849 AM CDT SAT NOV 1 2025
SHEBOYGAN WI TO PENTWATER MI NORTH...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...
REST OF TODAY
NORTH WINDS 10 TO 15 KT. SLIGHT CHANCE OF
WATERSPOUTS. SLIGHT CHANCE OF RAIN. WAVES 2 TO 4 FT.
TONIGHT
NORTH WINDS 10 TO 15 KT BACKING TO WEST 5 TO 10 KT.
SLIGHT CHANCE OF RAIN IN THE EVENING. WAVES 1 TO 3 FT SUBSIDING
TO 1 FT OR LESS.
SUNDAY
SOUTHWEST WINDS 10 TO 15 KT INCREASING TO GALES TO
40 KT. WAVES 1 TO 2 FT BUILDING TO 6 TO 9 FT OCCASIONALLY TO
12 FT.
SUNDAY NIGHT
SOUTHWEST GALES TO 45 KT. CHANCE OF RAIN IN THE
EVENING, THEN RAIN OVERNIGHT. WAVES 12 TO 16 FT OCCASIONALLY TO
21 FT.
MONDAY
WEST GALES TO 35 KT DIMINISHING TO 30 KT. CHANCE OF
RAIN IN THE MORNING. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT
SUBSIDING TO 7 TO 10 FT OCCASIONALLY TO 13 FT.
MONDAY NIGHT
WEST WINDS TO 30 KT. WAVES 6 TO 9 FT OCCASIONALLY
TO 12 FT.
TUESDAY
WEST WINDS 15 TO 25 KT BECOMING SOUTHWEST. WAVES 3 TO
5 FT SUBSIDING TO 2 TO 4 FT.
WEDNESDAY
SOUTHWEST WINDS 10 TO 20 KT BECOMING NORTHWEST TO
30 KT. CHANCE OF RAIN. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-012130-
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-
849 AM CDT SAT NOV 1 2025
SHEBOYGAN WI TO PENTWATER MI SOUTH...
REST OF TODAY
NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH.
SLIGHT CHANCE OF WATERSPOUTS. CHANCE OF RAIN AND SLIGHT CHANCE OF
THUNDERSTORMS THROUGH MID MORNING, THEN CHANCE OF RAIN THIS
AFTERNOON. WAVES 2 TO 4 FT.
TONIGHT
NORTH WINDS 10 TO 15 KT BECOMING NORTHEAST 5 TO 10 KT.
CHANCE OF RAIN IN THE EVENING, THEN SLIGHT CHANCE OF RAIN
OVERNIGHT. WAVES 1 TO 3 FT.
SUNDAY
SOUTHEAST WINDS 5 TO 10 KT BECOMING SOUTH 10 TO 15 KT
LATE IN THE MORNING, THEN BECOMING SOUTHWEST 10 TO 20 KT EARLY IN
THE AFTERNOON INCREASING TO 30 KT LATE. WAVES 1 TO 2 FT BUILDING
TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
SUNDAY NIGHT
SOUTHWEST GALES TO 35 KT. CHANCE OF RAIN
OVERNIGHT. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT.
MONDAY
WEST GALES TO 35 KT DIMINISHING TO 30 KT. WAVES 10 TO
14 FT OCCASIONALLY TO 18 FT SUBSIDING TO 8 TO 11 FT OCCASIONALLY
TO 14 FT.
MONDAY NIGHT
WEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT.
WAVES 8 TO 11 FT OCCASIONALLY TO 14 FT SUBSIDING TO 6 TO 9 FT
OCCASIONALLY TO 12 FT.
TUESDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTH. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO 4 FT.
WEDNESDAY
WEST WINDS 15 TO 25 KT BECOMING NORTHWEST. WAVES
6 TO 9 FT OCCASIONALLY TO 12 FT.
LMZ761-012130-
MAFOR 0116/
MICHIGAN NORTH 13810 12800 12600 11520. WAVES 1 TO 3 FEET THIS
AFTERNOON. WAVES 2 FEET OR LESS TONIGHT AND SUNDAY MORNING.
MICHIGAN SOUTH 14810 11110 11100 11200 11410. A CHANCE OF RAIN
THIS AFTERNOON AND EVENING. WAVES 1 TO 3 FEET THIS AFTERNOON AND
TONIGHT. WAVES 2 FEET OR LESS SUNDAY 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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