021
FZUS53 KMKX 181010
NSHMKX
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
510 AM CDT TUE AUG 18 2026
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
LMZ643-181600-
SHEBOYGAN TO PORT WASHINGTON WI-
510 AM CDT TUE AUG 18 2026
TODAY
WEST WIND 10 TO 15 KNOTS BACKING SOUTHWEST WITH GUSTS TO
AROUND 20 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS EARLY IN THE AFTERNOON. CHANCE OF
SHOWERS AND THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 TO
2 FEET.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS VEERING NORTH EARLY IN
THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH AROUND
MIDNIGHT. WAVES 1 TO 2 FEET.
WEDNESDAY
NORTHWEST WIND 5 TO 10 KNOTS VEERING SOUTHEAST LATE
IN THE AFTERNOON. SUNNY. WAVES AROUND 1 FOOT.
WEDNESDAY NIGHT
SOUTH WIND 5 TO 10 KNOTS VEERING WEST EARLY IN
THE MORNING. MOSTLY CLEAR. WAVES AROUND 1 FOOT.
LMZ644-181600-
PORT WASHINGTON TO NORTH POINT LIGHT WI-
510 AM CDT TUE AUG 18 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE LATE MORNING AND
AFTERNOON. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN
THE AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON. WAVES AROUND 1 FOOT.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS VEERING WEST LATE IN THE
EVENING, THEN VEERING NORTHWEST AFTER MIDNIGHT BECOMING NORTH
5 TO 10 KNOTS EARLY IN THE MORNING. CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH AROUND MIDNIGHT. WAVES AROUND 1 FOOT.
WEDNESDAY
NORTH WIND 5 TO 10 KNOTS VEERING EAST LATE IN THE
AFTERNOON. SUNNY. WAVES AROUND 1 FOOT.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS VEERING WEST
EARLY IN THE MORNING. MOSTLY CLEAR. WAVES AROUND 1 FOOT.
LMZ645-181600-
NORTH POINT LIGHT TO WIND POINT WI-
510 AM CDT TUE AUG 18 2026
TODAY
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS IN THE LATE MORNING AND
AFTERNOON. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN
THE AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON. WAVES AROUND 1 FOOT.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS VEERING NORTH EARLY IN
THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH AROUND
MIDNIGHT, THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES AROUND 1 FOOT.
WEDNESDAY
NORTH WIND 10 TO 15 KNOTS EASING TO 5 TO 10 KNOTS
LATE IN THE MORNING, THEN VEERING NORTHEAST EARLY IN THE
AFTERNOON VEERING EAST LATE IN THE AFTERNOON. SUNNY. WAVES 1 TO
2 FEET.
WEDNESDAY NIGHT
SOUTHEAST WIND 5 TO 10 KNOTS VEERING WEST
EARLY IN THE MORNING. MOSTLY CLEAR. WAVES AROUND 1 FOOT.
LMZ646-181600-
WIND POINT WI TO WINTHROP HARBOR IL-
510 AM CDT TUE AUG 18 2026
TODAY
WEST WIND 10 TO 15 KNOTS BACKING SOUTHWEST WITH GUSTS TO
AROUND 20 KNOTS IN THE LATE MORNING AND AFTERNOON. SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS EARLY IN THE AFTERNOON. CHANCE OF
SHOWERS AND THUNDERSTORMS LATE IN THE AFTERNOON. WAVES AROUND
1 FOOT.
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS VEERING WEST LATE IN THE
EVENING, THEN VEERING NORTHWEST AFTER MIDNIGHT EASING TO 5 TO
10 KNOTS EARLY IN THE MORNING. CHANCE OF SHOWERS THROUGH AROUND
MIDNIGHT. CHANCE OF THUNDERSTORMS THROUGH THE NIGHT. SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES AROUND 1 FOOT.
WEDNESDAY
NORTH WIND 5 TO 10 KNOTS VEERING NORTHEAST LATE IN
THE AFTERNOON. SUNNY. WAVES AROUND 1 FOOT.
WEDNESDAY NIGHT
EAST WIND 5 TO 10 KNOTS VEERING SOUTHEAST LATE
IN THE EVENING, THEN VEERING SOUTH AFTER MIDNIGHT VEERING WEST
EARLY IN THE MORNING. PARTLY CLOUDY. WAVES AROUND 1 FOOT.
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR THURSDAY THROUGH SATURDAY.
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