425
FZUS53 KMKX 210610
NSHMKX
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
110 AM CDT TUE APR 21 2026
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
LMZ643-210900-
SHEBOYGAN TO PORT WASHINGTON WI-
110 AM CDT TUE APR 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
REST OF TONIGHT
SOUTH WIND 15 TO 20 KNOTS. PARTLY CLOUDY.
WAVES 3 TO 4 FEET.
TUESDAY
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS VEERING SOUTHWEST LATE IN THE MORNING, THEN BACKING
SOUTH EARLY IN THE AFTERNOON BECOMING SOUTHEAST 5 TO 10 KNOTS
LATE IN THE AFTERNOON. MOSTLY SUNNY. WAVES 3 TO 4 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BACKING NORTH LATE
IN THE EVENING, THEN RISING TO 10 TO 15 KNOTS AFTER MIDNIGHT
EASING TO 5 TO 10 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR. WAVES
1 TO 2 FEET.
WEDNESDAY
NORTH WIND 5 TO 10 KNOTS VEERING EAST LATE IN THE
AFTERNOON. SUNNY. WAVES 1 TO 2 FEET.
LMZ644-210900-
PORT WASHINGTON TO NORTH POINT LIGHT WI-
110 AM CDT TUE APR 21 2026
REST OF TONIGHT
SOUTH WIND 10 TO 15 KNOTS RISING TO 15 TO
20 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY. WAVES 2 TO 4 FEET.
TUESDAY
SOUTH WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
20 KNOTS VEERING SOUTHWEST IN THE LATE MORNING AND EARLY
AFTERNOON, THEN BACKING SOUTH LATE IN THE AFTERNOON. SCATTERED
SPRINKLES IN THE AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
2 FEET IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BACKING NORTH LATE
IN THE EVENING, THEN BECOMING NORTH 5 TO 10 KNOTS AFTER MIDNIGHT.
MOSTLY CLEAR. WAVES AROUND 1 FOOT.
WEDNESDAY
NORTH WIND 5 TO 10 KNOTS VEERING EAST LATE IN THE
AFTERNOON. SUNNY. WAVES AROUND 1 FOOT.
LMZ645-210900-
NORTH POINT LIGHT TO WIND POINT WI-
110 AM CDT TUE APR 21 2026
REST OF TONIGHT
SOUTH WIND 15 TO 20 KNOTS. MOSTLY CLOUDY.
WAVES 2 TO 4 FEET.
TUESDAY
SOUTHWEST WIND 15 TO 20 KNOTS EASING TO 10 TO 15 KNOTS
LATE IN THE MORNING, THEN BECOMING SOUTHWEST 10 TO 15 KNOTS IN
THE AFTERNOON. ISOLATED SHOWERS IN THE AFTERNOON. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 2 FEET IN THE AFTERNOON.
TUESDAY NIGHT
WEST WIND 5 TO 10 KNOTS VEERING NORTH EARLY IN
THE MORNING. PARTLY CLOUDY. WAVES AROUND 1 FOOT.
WEDNESDAY
NORTH WIND 5 TO 10 KNOTS VEERING EAST LATE IN THE
AFTERNOON. SUNNY. WAVES AROUND 1 FOOT.
LMZ646-210900-
WIND POINT WI TO WINTHROP HARBOR IL-
110 AM CDT TUE APR 21 2026
REST OF TONIGHT
SOUTH WIND 15 TO 20 KNOTS. MOSTLY CLOUDY.
WAVES 2 TO 4 FEET.
TUESDAY
SOUTHWEST WIND 15 TO 20 KNOTS EASING TO 10 TO 15 KNOTS
WITH GUSTS TO AROUND 20 KNOTS LATE IN THE MORNING, THEN BECOMING
SOUTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND 20 KNOTS EARLY IN
THE AFTERNOON BECOMING SOUTHWEST 10 TO 15 KNOTS LATE IN THE
AFTERNOON. ISOLATED SHOWERS IN THE AFTERNOON. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 2 FEET IN THE AFTERNOON.
TUESDAY NIGHT
SOUTHWEST WIND 5 TO 10 KNOTS VEERING NORTH EARLY
IN THE MORNING. PATCHY FOG AFTER MIDNIGHT. WAVES AROUND 1 FOOT.
WEDNESDAY
NORTH WIND 5 TO 10 KNOTS VEERING EAST LATE IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. WAVES AROUND 1 FOOT.
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR THURSDAY THROUGH SATURDAY.
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