878
FZUS53 KMKX 200010
NSHMKX
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
710 PM CDT WED AUG 19 2026
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
LMZ643-200400-
SHEBOYGAN TO PORT WASHINGTON WI-
710 PM CDT WED AUG 19 2026
TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT, THEN BECOMING NORTHWEST EARLY IN THE MORNING. CLEAR.
WAVES AROUND 1 FOOT.
THURSDAY
NORTHWEST WIND 5 KNOTS BACKING SOUTH LATE IN THE
MORNING, THEN RISING TO 5 TO 15 KNOTS EARLY IN THE AFTERNOON
BECOMING 10 TO 15 KNOTS LATE IN THE AFTERNOON. SUNNY. WAVES
AROUND 1 FOOT.
THURSDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST
5 TO 10 KNOTS AFTER MIDNIGHT, THEN RISING TO 10 TO 15 KNOTS EARLY
IN THE MORNING. PARTLY CLOUDY. WAVES 1 TO 2 FEET.
FRIDAY
SOUTHWEST WIND 10 TO 15 KNOTS BACKING SOUTH WITH GUSTS
TO AROUND 20 KNOTS IN THE AFTERNOON. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS LIKELY AND A
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET
BUILDING TO 2 TO 4 FEET LATE IN THE AFTERNOON.
LMZ644-200400-
PORT WASHINGTON TO NORTH POINT LIGHT WI-
710 PM CDT WED AUG 19 2026
TONIGHT
EAST WIND 5 TO 10 KNOTS BECOMING NORTHEAST AFTER
MIDNIGHT, THEN BECOMING NORTH EARLY IN THE MORNING. MOSTLY CLEAR.
WAVES AROUND 1 FOOT.
THURSDAY
NORTH WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE IN
THE MORNING, THEN BECOMING SOUTHEAST EARLY IN THE AFTERNOON
BECOMING SOUTHEAST 5 TO 10 KNOTS LATE IN THE AFTERNOON. SUNNY.
WAVES AROUND 1 FOOT.
THURSDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. PARTLY CLOUDY. WAVES AROUND 1 FOOT.
FRIDAY
SOUTHWEST WIND 10 TO 15 KNOTS. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS
LIKELY AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
AROUND 1 FOOT.
LMZ645-200400-
NORTH POINT LIGHT TO WIND POINT WI-
710 PM CDT WED AUG 19 2026
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
AROUND 1 FOOT.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS VEERING SOUTHEAST LATE
IN THE AFTERNOON. SUNNY. WAVES AROUND 1 FOOT.
THURSDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. PARTLY CLOUDY. WAVES AROUND 1 FOOT.
FRIDAY
SOUTHWEST WIND 10 TO 15 KNOTS. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS
LIKELY AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES
AROUND 1 FOOT.
LMZ646-200400-
WIND POINT WI TO WINTHROP HARBOR IL-
710 PM CDT WED AUG 19 2026
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES
AROUND 1 FOOT.
THURSDAY
NORTHEAST WIND 5 TO 10 KNOTS VEERING EAST LATE IN THE
AFTERNOON. SUNNY. WAVES AROUND 1 FOOT.
THURSDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS VEERING SOUTHWEST
EARLY IN THE MORNING. PARTLY CLOUDY. WAVES AROUND 1 FOOT.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS RISING TO 10 TO 15 KNOTS
LATE IN THE MORNING, THEN BECOMING SOUTHWEST 10 TO 15 KNOTS IN
THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY.
SHOWERS LIKELY IN THE AFTERNOON. WAVES AROUND 1 FOOT.
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR SATURDAY THROUGH MONDAY.
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