433
FZUS53 KMKX 210010
NSHMKX
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
710 PM CDT THU AUG 20 2026
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
LMZ643-210400-
SHEBOYGAN TO PORT WASHINGTON WI-
710 PM CDT THU AUG 20 2026
TONIGHT
SOUTH WIND 5 TO 10 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. PARTLY CLOUDY. WAVES AROUND 1 FOOT.
FRIDAY
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING SOUTH 15 TO
20 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 TO 2 FEET BUILDING TO 3 TO 4 FEET IN THE
AFTERNOON.
FRIDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS LATE IN THE EVENING, THEN VEERING NORTHWEST AFTER
MIDNIGHT RISING TO 10 TO 15 KNOTS EARLY IN THE MORNING. CHANCE OF
THUNDERSTORMS THROUGH AROUND MIDNIGHT. CHANCE OF SHOWERS THROUGH
THE NIGHT. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 2 FEET AFTER
MIDNIGHT.
SATURDAY
NORTHWEST WIND 10 TO 15 KNOTS VEERING NORTH EARLY IN
THE AFTERNOON, THEN EASING TO 5 TO 10 KNOTS LATE IN THE
AFTERNOON. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. WAVES 1 TO 2 FEET.
LMZ644-210400-
PORT WASHINGTON TO NORTH POINT LIGHT WI-
710 PM CDT THU AUG 20 2026
TONIGHT
SOUTHEAST WIND 5 TO 10 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. PARTLY CLOUDY. WAVES AROUND 1 FOOT.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS RISING TO 10 TO 15 KNOTS
LATE IN THE MORNING, THEN BACKING SOUTH EARLY IN THE AFTERNOON
BECOMING SOUTH 10 TO 15 KNOTS LATE IN THE AFTERNOON. SLIGHT
CHANCE OF SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES AROUND 1 FOOT.
FRIDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS LATE IN THE EVENING, THEN VEERING WEST AFTER MIDNIGHT
BECOMING NORTHWEST 10 TO 15 KNOTS EARLY IN THE MORNING. CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH AROUND MIDNIGHT. WAVES 1 TO
2 FEET.
SATURDAY
NORTHWEST WIND 10 TO 15 KNOTS VEERING NORTH EARLY IN
THE AFTERNOON, THEN EASING TO 5 TO 10 KNOTS LATE IN THE
AFTERNOON. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. WAVES 1 TO 2 FEET.
LMZ645-210400-
NORTH POINT LIGHT TO WIND POINT WI-
710 PM CDT THU AUG 20 2026
TONIGHT
EAST WIND 5 TO 10 KNOTS BECOMING SOUTH LATE IN THE
EVENING, THEN BECOMING SOUTHWEST AFTER MIDNIGHT BECOMING
SOUTHWEST 5 TO 10 KNOTS 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 BACKING SOUTH EARLY IN THE AFTERNOON
BECOMING SOUTH 10 TO 15 KNOTS LATE IN THE AFTERNOON. CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES AROUND 1 FOOT.
FRIDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS LATE IN THE EVENING, THEN VEERING WEST AFTER MIDNIGHT
BECOMING NORTHWEST 10 TO 15 KNOTS EARLY IN THE MORNING. CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH AROUND MIDNIGHT. WAVES AROUND
1 FOOT.
SATURDAY
NORTHWEST WIND 10 TO 15 KNOTS VEERING NORTH EARLY IN
THE AFTERNOON, THEN EASING TO 5 TO 10 KNOTS LATE IN THE
AFTERNOON. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. WAVES 1 TO 2 FEET.
LMZ646-210400-
WIND POINT WI TO WINTHROP HARBOR IL-
710 PM CDT THU AUG 20 2026
TONIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING SOUTH LATE IN
THE EVENING, THEN VEERING SOUTHWEST AFTER MIDNIGHT RISING TO 5 TO
10 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY. WAVES AROUND
1 FOOT.
FRIDAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH 10 TO
15 KNOTS IN THE AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. WAVES AROUND 1 FOOT.
FRIDAY NIGHT
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS LATE IN THE EVENING, THEN VEERING WEST AFTER MIDNIGHT
BECOMING NORTHWEST 10 TO 15 KNOTS EARLY IN THE MORNING. CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH AROUND MIDNIGHT. WAVES AROUND
1 FOOT.
SATURDAY
NORTHWEST WIND 10 TO 15 KNOTS VEERING NORTH EARLY IN
THE AFTERNOON, THEN EASING TO 5 TO 10 KNOTS LATE IN THE
AFTERNOON. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. WAVES 1 TO 2 FEET.
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR SUNDAY THROUGH TUESDAY.
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