520
FZUS53 KMKX 180710
NSHMKX
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
110 AM CST THU DEC 18 2025
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
LMZ643-181000-
SHEBOYGAN TO PORT WASHINGTON WI-
110 AM CST THU DEC 18 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...
REST OF TONIGHT
SOUTH WIND UP TO 30 KNOTS WITH GUSTS TO AROUND
35 KNOTS. CHANCE OF RAIN EARLY IN THE MORNING. WAVES 7 TO 9 FEET.
THURSDAY
SOUTH WIND UP TO 30 KNOTS EASING TO 15 TO 25 KNOTS
LATE IN THE MORNING, THEN VEERING SOUTHWEST EARLY IN THE
AFTERNOON BECOMING SOUTHWEST 15 TO 25 KNOTS LATE IN THE
AFTERNOON. RAIN IN THE MORNING, THEN CHANCE OF RAIN IN THE
AFTERNOON. WAVES 7 TO 9 FEET SUBSIDING TO 5 TO 7 FEET LATE IN THE
AFTERNOON.
THURSDAY NIGHT
WEST WIND UP TO 30 KNOTS BECOMING NORTHWEST
GALES TO 35 KNOTS EARLY IN THE MORNING. CHANCE OF SNOW. WAVES
3 TO 5 FEET SUBSIDING TO 3 TO 4 FEET LATE IN THE EVENING, THEN
BUILDING TO 3 TO 5 FEET AFTER MIDNIGHT.
FRIDAY
NORTHWEST GALES TO 35 KNOTS EASING TO UP TO 30 KNOTS
LATE IN THE MORNING, THEN EASING TO 15 TO 20 KNOTS WITH GUSTS TO
AROUND 25 KNOTS EARLY IN THE AFTERNOON BECOMING WEST 10 TO
15 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES 4 TO 6 FEET
SUBSIDING TO 1 TO 2 FEET LATE IN THE AFTERNOON.
WAVE HEIGHTS ARE FOR ICE FREE AREAS.
LMZ644-181000-
PORT WASHINGTON TO NORTH POINT LIGHT WI-
110 AM CST THU DEC 18 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...
REST OF TONIGHT
SOUTH WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND
30 KNOTS. SLIGHT CHANCE OF RAIN EARLY IN THE MORNING. WAVES 5 TO
7 FEET.
THURSDAY
SOUTH WIND 15 TO 25 KNOTS VEERING WEST LATE IN THE
AFTERNOON. GUSTS UP TO 30 KNOTS. RAIN IN THE MORNING, THEN CHANCE
OF RAIN AND SLIGHT CHANCE OF SNOW IN THE AFTERNOON. WAVES 5 TO
7 FEET SUBSIDING TO 3 TO 5 FEET LATE IN THE AFTERNOON.
THURSDAY NIGHT
WEST WIND UP TO 30 KNOTS BECOMING NORTHWEST
GALES TO 35 KNOTS EARLY IN THE MORNING. GUSTS UP TO 40 KNOTS.
SNOW LIKELY THROUGH AROUND MIDNIGHT, THEN CHANCE OF SNOW AFTER
MIDNIGHT. WAVES 3 TO 4 FEET BUILDING TO 3 TO 5 FEET AFTER
MIDNIGHT.
FRIDAY
NORTHWEST GALES TO 35 KNOTS EASING TO UP TO 30 KNOTS
LATE IN THE MORNING, THEN BECOMING WEST 15 TO 20 KNOTS WITH GUSTS
TO AROUND 25 KNOTS EARLY IN THE AFTERNOON EASING TO 10 TO
15 KNOTS LATE IN THE AFTERNOON. PARTLY SUNNY. WAVES 3 TO 5 FEET
SUBSIDING TO 1 TO 2 FEET.
WAVE HEIGHTS ARE FOR ICE FREE AREAS.
LMZ645-181000-
NORTH POINT LIGHT TO WIND POINT WI-
110 AM CST THU DEC 18 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...
REST OF TONIGHT
SOUTH WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND
30 KNOTS. RAIN LIKELY EARLY IN THE MORNING. WAVES 5 TO 7 FEET.
THURSDAY
SOUTH WIND 15 TO 25 KNOTS VEERING WEST LATE IN THE
AFTERNOON. GUSTS UP TO 30 KNOTS. RAIN IN THE MORNING, THEN CHANCE
OF RAIN IN THE AFTERNOON. WAVES 5 TO 7 FEET SUBSIDING TO 3 TO
5 FEET LATE IN THE AFTERNOON.
THURSDAY NIGHT
WEST WIND UP TO 30 KNOTS VEERING NORTHWEST
EARLY IN THE MORNING. GUSTS UP TO 35 KNOTS. FREEZING SPRAY
THROUGH AROUND MIDNIGHT. SNOW LIKELY THROUGH AROUND MIDNIGHT,
THEN CHANCE OF SNOW AFTER MIDNIGHT. WAVES 3 TO 4 FEET BUILDING TO
4 TO 6 FEET IN THE LATE EVENING AND OVERNIGHT.
FRIDAY
NORTHWEST GALES TO 35 KNOTS EASING TO UP TO 30 KNOTS
LATE IN THE MORNING, THEN BECOMING WEST 15 TO 20 KNOTS EARLY IN
THE AFTERNOON EASING TO 10 TO 15 KNOTS LATE IN THE AFTERNOON.
PARTLY SUNNY. WAVES 4 TO 6 FEET SUBSIDING TO 1 TO 2 FEET LATE IN
THE AFTERNOON.
WAVE HEIGHTS ARE FOR ICE FREE AREAS.
LMZ646-181000-
WIND POINT WI TO WINTHROP HARBOR IL-
110 AM CST THU DEC 18 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...
REST OF TONIGHT
SOUTH WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND
30 KNOTS. RAIN LIKELY EARLY IN THE MORNING. WAVES 5 TO 7 FEET.
THURSDAY
SOUTH WIND 15 TO 25 KNOTS VEERING WEST LATE IN THE
AFTERNOON. GUSTS UP TO 30 KNOTS. RAIN IN THE MORNING, THEN RAIN
LIKELY IN THE AFTERNOON. WAVES 5 TO 7 FEET SUBSIDING TO 3 TO
5 FEET LATE IN THE AFTERNOON.
THURSDAY NIGHT
WEST WIND 15 TO 25 KNOTS RISING TO UP TO
30 KNOTS LATE IN THE EVENING, THEN BECOMING WEST UP TO 30 KNOTS
AFTER MIDNIGHT. GUSTS UP TO 35 KNOTS. CHANCE OF SNOW THROUGH
AROUND MIDNIGHT, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES
3 TO 4 FEET BUILDING TO 3 TO 5 FEET EARLY IN THE MORNING.
FRIDAY
NORTHWEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND
35 KNOTS EASING TO 15 TO 25 KNOTS WITH GUSTS TO AROUND 30 KNOTS
LATE IN THE MORNING, THEN BACKING WEST 15 TO 20 KNOTS EARLY IN
THE AFTERNOON EASING TO 10 TO 15 KNOTS LATE IN THE AFTERNOON.
PARTLY SUNNY. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 2 FEET.
WAVE HEIGHTS ARE FOR ICE FREE AREAS.
SEE LAKE MICHIGAN OPEN WATERS FORECAST FOR SATURDAY THROUGH MONDAY.
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