839
FZUS53 KMKX 202210
NSHMKX
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
510 PM CDT WED MAY 20 2026
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
LMZ643-210400-
SHEBOYGAN TO PORT WASHINGTON WI-
510 PM CDT WED MAY 20 2026
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS RISING TO 15 TO 20 KNOTS
AFTER MIDNIGHT, THEN 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. MOSTLY SUNNY IN THE MORNING THEN
BECOMING MOSTLY CLOUDY. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET LATE IN THE AFTERNOON.
THURSDAY NIGHT
NORTHEAST WIND 10 TO 15 KNOTS BECOMING EAST
15 TO 20 KNOTS AFTER MIDNIGHT, THEN EASING TO 10 TO 15 KNOTS
EARLY IN THE MORNING. MOSTLY CLOUDY. WAVES 3 TO 4 FEET.
FRIDAY
EAST WIND 10 TO 15 KNOTS BACKING NORTHEAST LATE IN THE
MORNING, THEN RISING TO 15 TO 20 KNOTS EARLY IN THE AFTERNOON
BECOMING NORTHEAST 15 TO 20 KNOTS LATE IN THE AFTERNOON. PARTLY
SUNNY. WAVES 3 TO 4 FEET.
LMZ644-210400-
PORT WASHINGTON TO NORTH POINT LIGHT WI-
510 PM CDT WED MAY 20 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY EVENING THROUGH
FRIDAY EVENING...
TONIGHT
NORTHEAST WIND 10 TO 15 KNOTS RISING TO 15 TO 20 KNOTS
LATE IN THE EVENING, THEN BECOMING NORTHEAST 15 TO 20 KNOTS AFTER
MIDNIGHT. 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 SUNNY IN THE MORNING THEN
BECOMING MOSTLY CLOUDY. WAVES 3 TO 4 FEET.
THURSDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS VEERING EAST
AFTER MIDNIGHT, THEN BECOMING 10 TO 20 KNOTS EARLY IN THE
MORNING. PARTLY CLOUDY THROUGH AROUND MIDNIGHT THEN BECOMING
MOSTLY CLOUDY. WAVES 3 TO 4 FEET.
FRIDAY
EAST WIND 10 TO 20 KNOTS BECOMING 15 TO 20 KNOTS LATE
IN THE MORNING, THEN BACKING NORTHEAST EARLY IN THE AFTERNOON
BECOMING NORTHEAST 15 TO 20 KNOTS LATE IN THE AFTERNOON. PARTLY
SUNNY. WAVES 3 TO 4 FEET.
LMZ645-210400-
NORTH POINT LIGHT TO WIND POINT WI-
510 PM CDT WED MAY 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS BECOMING 10 TO 20 KNOTS
EARLY IN THE MORNING. PARTLY CLOUDY. WAVES 3 TO 4 FEET.
THURSDAY
NORTHEAST WIND 15 TO 20 KNOTS EASING TO 10 TO
15 KNOTS EARLY IN THE AFTERNOON, THEN BECOMING NORTHEAST 10 TO
15 KNOTS LATE IN THE AFTERNOON. MOSTLY SUNNY IN THE MORNING THEN
BECOMING MOSTLY CLOUDY. WAVES 3 TO 4 FEET.
THURSDAY NIGHT
NORTHEAST WIND 15 TO 20 KNOTS VEERING EAST
10 TO 20 KNOTS AFTER MIDNIGHT, THEN BECOMING 15 TO 20 KNOTS EARLY
IN THE MORNING. PARTLY CLOUDY. WAVES 3 TO 4 FEET.
FRIDAY
EAST WIND 15 TO 20 KNOTS BACKING NORTHEAST LATE IN THE
AFTERNOON. PARTLY SUNNY. WAVES 3 TO 5 FEET.
LMZ646-210400-
WIND POINT WI TO WINTHROP HARBOR IL-
510 PM CDT WED MAY 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
TONIGHT
NORTHEAST WIND 15 TO 20 KNOTS BECOMING 10 TO 20 KNOTS
EARLY IN THE MORNING. 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 NORTHEAST 10 TO 15 KNOTS
WITH GUSTS TO AROUND 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. WAVES 3 TO 4 FEET.
FRIDAY
EAST WIND 15 TO 20 KNOTS BACKING NORTHEAST LATE IN THE
AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON. WAVES 3 TO
4 FEET.
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR SATURDAY THROUGH MONDAY.
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