520
FZUS53 KMKX 210411
NSHMKX
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1111 PM CDT WED MAY 20 2026
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
LMZ643-211000-
SHEBOYGAN TO PORT WASHINGTON WI-
1111 PM CDT WED MAY 20 2026
REST OF TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 10 TO
15 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY. WAVES 2 TO 4 FEET.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 10 TO
15 KNOTS LATE IN THE MORNING, THEN BECOMING NORTHEAST 10 TO
15 KNOTS IN THE AFTERNOON. PARTLY SUNNY. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO
AROUND 20 KNOTS VEERING EAST AFTER MIDNIGHT. PARTLY CLOUDY
THROUGH AROUND MIDNIGHT THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
FRIDAY
NORTHEAST WIND 10 TO 15 KNOTS RISING TO 15 TO 20 KNOTS
EARLY IN THE AFTERNOON, THEN BECOMING NORTHEAST 15 TO 20 KNOTS
LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES 3 TO 4 FEET.
LMZ644-211000-
PORT WASHINGTON TO NORTH POINT LIGHT WI-
1111 PM CDT WED MAY 20 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY EVENING THROUGH
FRIDAY EVENING...
REST OF TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS. PARTLY CLOUDY.
WAVES 3 TO 4 FEET.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 10 TO
15 KNOTS LATE IN THE MORNING, THEN BECOMING NORTHEAST 10 TO
15 KNOTS IN THE AFTERNOON. MOSTLY CLOUDY. WAVES 3 TO 4 FEET.
THURSDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 10 TO
15 KNOTS LATE IN THE EVENING, THEN BECOMING EAST 15 TO 20 KNOTS
AFTER MIDNIGHT. PARTLY CLOUDY THROUGH AROUND MIDNIGHT THEN
BECOMING MOSTLY CLOUDY. WAVES 3 TO 4 FEET.
FRIDAY
EAST WIND 15 TO 20 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS WITH GUSTS TO AROUND 20 KNOTS EARLY IN THE AFTERNOON,
THEN RISING TO 15 TO 20 KNOTS LATE IN THE AFTERNOON. PARTLY
SUNNY. WAVES 3 TO 4 FEET.
LMZ645-211000-
NORTH POINT LIGHT TO WIND POINT WI-
1111 PM CDT WED MAY 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
REST OF TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS. PARTLY CLOUDY.
WAVES 3 TO 4 FEET.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 10 TO
15 KNOTS LATE IN THE MORNING, THEN BECOMING NORTHEAST 10 TO
15 KNOTS EARLY IN THE AFTERNOON BACKING NORTH WITH GUSTS TO
AROUND 20 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES 3 TO
5 FEET SUBSIDING TO 2 TO 4 FEET IN THE LATE MORNING AND
AFTERNOON.
THURSDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS VEERING EAST
EARLY IN THE MORNING. MOSTLY CLOUDY. WAVES 3 TO 4 FEET.
FRIDAY
EAST WIND 15 TO 20 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS EARLY IN THE AFTERNOON, THEN RISING TO 15 TO 20 KNOTS
LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES 3 TO 5 FEET.
LMZ646-211000-
WIND POINT WI TO WINTHROP HARBOR IL-
1111 PM CDT WED MAY 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
REST OF TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS. PARTLY CLOUDY.
WAVES 3 TO 4 FEET.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 10 TO
15 KNOTS LATE IN THE MORNING, THEN BECOMING NORTHEAST 10 TO
15 KNOTS EARLY IN THE AFTERNOON BECOMING NORTH 15 TO 20 KNOTS
LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES 3 TO 4 FEET.
THURSDAY NIGHT
NORTH WIND 15 TO 20 KNOTS VEERING EAST AFTER
MIDNIGHT. PARTLY CLOUDY THROUGH AROUND MIDNIGHT THEN BECOMING
MOSTLY CLOUDY. WAVES 3 TO 4 FEET.
FRIDAY
EAST WIND 15 TO 20 KNOTS BECOMING NORTHEAST 10 TO
15 KNOTS EARLY IN THE AFTERNOON, THEN RISING TO 15 TO 20 KNOTS
LATE IN THE AFTERNOON. MOSTLY CLOUDY. WAVES 3 TO 4 FEET.
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR SATURDAY THROUGH MONDAY.
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