645
FZUS53 KMKX 050410
NSHMKX
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1110 PM CDT TUE AUG 4 2026
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
LMZ643-051000-
SHEBOYGAN TO PORT WASHINGTON WI-
1110 PM CDT TUE AUG 4 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS VEERING WEST
EARLY IN THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
1 TO 2 FEET.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS VEERING NORTHWEST LATE IN
THE MORNING, THEN VEERING EAST EARLY IN THE AFTERNOON BECOMING
EAST 5 TO 10 KNOTS LATE IN THE AFTERNOON. PATCHY FOG IN THE
MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
WAVES AROUND 1 FOOT.
WEDNESDAY NIGHT
EAST WIND 5 TO 10 KNOTS BACKING NORTHEAST LATE
IN THE EVENING, THEN BECOMING NORTHWEST AFTER MIDNIGHT VEERING
NORTH EARLY IN THE MORNING. MOSTLY CLOUDY THROUGH AROUND MIDNIGHT
THEN BECOMING PARTLY CLOUDY. WAVES AROUND 1 FOOT.
THURSDAY
NORTH WIND 5 KNOTS BECOMING SOUTHEAST EARLY IN THE
AFTERNOON, THEN BECOMING SOUTHEAST 5 TO 10 KNOTS LATE IN THE
AFTERNOON. PARTLY SUNNY IN THE MORNING THEN CLEARING. WAVES
NEARLY CALM.
LMZ644-051000-
PORT WASHINGTON TO NORTH POINT LIGHT WI-
1110 PM CDT TUE AUG 4 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS VEERING WEST
EARLY IN THE MORNING. CHANCE OF SHOWERS AFTER MIDNIGHT. CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT. SHOWERS LIKELY EARLY IN THE
MORNING. WAVES 1 TO 2 FEET.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS BACKING SOUTHWEST LATE IN
THE MORNING, THEN BACKING SOUTHEAST EARLY IN THE AFTERNOON
BACKING NORTHEAST LATE IN THE AFTERNOON. PATCHY FOG IN THE
MORNING. CHANCE OF THUNDERSTORMS IN THE MORNING. CHANCE OF
SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES AROUND 1 FOOT.
WEDNESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING
NORTHWEST AFTER MIDNIGHT, THEN VEERING NORTH EARLY IN THE
MORNING. SLIGHT CHANCE OF SHOWERS THROUGH AROUND MIDNIGHT. WAVES
NEARLY CALM.
THURSDAY
NORTH WIND 5 TO 10 KNOTS BECOMING NORTHEAST LATE IN
THE MORNING, THEN BECOMING EAST EARLY IN THE AFTERNOON BECOMING
EAST 5 TO 10 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES
NEARLY CALM.
LMZ645-051000-
NORTH POINT LIGHT TO WIND POINT WI-
1110 PM CDT TUE AUG 4 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS VEERING WEST
EARLY IN THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH
THE NIGHT. WAVES AROUND 1 FOOT.
WEDNESDAY
WEST WIND 5 TO 10 KNOTS BACKING SOUTHWEST LATE IN
THE MORNING, THEN BACKING SOUTHEAST EARLY IN THE AFTERNOON
BACKING EAST LATE IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF SHOWERS THROUGH THE DAY.
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES AROUND 1 FOOT.
WEDNESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS BECOMING NORTH
AFTER MIDNIGHT, THEN RISING TO 5 TO 10 KNOTS EARLY IN THE
MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH AROUND
MIDNIGHT, THEN SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES
NEARLY CALM.
THURSDAY
NORTH WIND 5 TO 10 KNOTS VEERING EAST LATE IN THE
AFTERNOON. MOSTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY
SUNNY. WAVES AROUND 1 FOOT.
LMZ646-051000-
WIND POINT WI TO WINTHROP HARBOR IL-
1110 PM CDT TUE AUG 4 2026
REST OF TONIGHT
SOUTHWEST WIND 5 TO 10 KNOTS. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE NIGHT.
WAVES AROUND 1 FOOT.
WEDNESDAY
SOUTHWEST WIND 5 TO 10 KNOTS BACKING SOUTH LATE IN
THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING.
CHANCE OF SHOWERS THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. WAVES AROUND 1 FOOT.
WEDNESDAY NIGHT
NORTH WIND 5 TO 10 KNOTS EASING TO 5 KNOTS
AFTER MIDNIGHT, THEN RISING TO 5 TO 10 KNOTS EARLY IN THE
MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH AROUND
MIDNIGHT, THEN SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES
NEARLY CALM.
THURSDAY
NORTH WIND 5 TO 10 KNOTS VEERING EAST LATE IN THE
AFTERNOON. PARTLY SUNNY. WAVES AROUND 1 FOOT.
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR FRIDAY THROUGH SUNDAY.
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