163
FZUS53 KMKX 211410
NSHMKX
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
910 AM CDT FRI AUG 21 2026
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
LMZ643-212200-
SHEBOYGAN TO PORT WASHINGTON WI-
910 AM CDT FRI AUG 21 2026
REST OF TODAY
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING SOUTH
15 TO 20 KNOTS IN THE AFTERNOON. SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE MORNING, THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET BUILDING TO
2 TO 4 FEET LATE IN THE AFTERNOON.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS VEERING NORTHWEST EARLY IN THE MORNING. CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH AROUND MIDNIGHT. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 2 FEET IN THE LATE EVENING AND
OVERNIGHT.
SATURDAY
NORTHWEST WIND 10 TO 15 KNOTS BECOMING NORTH 5 TO
10 KNOTS IN THE AFTERNOON. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
NORTH WIND 10 TO 15 KNOTS BACKING NORTHWEST
EARLY IN THE MORNING. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS THROUGH AROUND MIDNIGHT. WAVES 1 TO 2 FEET.
LMZ644-212200-
PORT WASHINGTON TO NORTH POINT LIGHT WI-
910 AM CDT FRI AUG 21 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH
10 TO 15 KNOTS IN THE AFTERNOON. SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE MORNING, THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES AROUND 1 FOOT.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS LATE IN THE EVENING, THEN BECOMING WEST 10 TO 15 KNOTS
AFTER MIDNIGHT VEERING NORTHWEST 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. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
NORTH WIND 5 TO 10 KNOTS RISING TO 10 TO
15 KNOTS LATE IN THE EVENING, THEN BECOMING NORTH 10 TO 15 KNOTS
AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH AROUND MIDNIGHT. WAVES 1 TO 2 FEET BUILDING TO 2 TO
4 FEET AFTER MIDNIGHT.
LMZ645-212200-
NORTH POINT LIGHT TO WIND POINT WI-
910 AM CDT FRI AUG 21 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH
10 TO 15 KNOTS IN THE AFTERNOON. SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE MORNING, THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WAVES AROUND 1 FOOT.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS LATE IN THE EVENING, THEN BECOMING WEST 10 TO 15 KNOTS
AFTER MIDNIGHT VEERING NORTHWEST 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. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
NORTH WIND 10 TO 15 KNOTS. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH AROUND MIDNIGHT. WAVES 1 TO
2 FEET BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
LMZ646-212200-
WIND POINT WI TO WINTHROP HARBOR IL-
910 AM CDT FRI AUG 21 2026
REST OF TODAY
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH
10 TO 15 KNOTS IN THE AFTERNOON. CHANCE OF SHOWERS LATE IN THE
MORNING, THEN SHOWERS AND A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES AROUND 1 FOOT.
TONIGHT
SOUTH WIND 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS LATE IN THE EVENING, THEN BECOMING WEST 10 TO 15 KNOTS
AFTER MIDNIGHT VEERING NORTHWEST 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. MOSTLY SUNNY. WAVES 1 TO 2 FEET.
SATURDAY NIGHT
NORTH WIND 5 TO 10 KNOTS RISING TO 10 TO
15 KNOTS LATE IN THE EVENING, THEN BECOMING NORTH 10 TO 15 KNOTS
AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH AROUND MIDNIGHT. WAVES 1 TO 2 FEET BUILDING TO 2 TO
4 FEET AFTER MIDNIGHT.
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR SUNDAY THROUGH TUESDAY.
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