Marine Forecast
Illustrated map of Lake Geneva

Marine forecast

Port Washington to North Point Light, WI

current wind
8 kt NW
Gusts
12 kt
Seas
0.7 ft
Air
67°F
Water
60°F

Observed Tue 1:00 PM | LMZ644

Gusts now
12 kt
Seas now
0.7 ft
Air
67°F
Water
60°F
72-hr peak
33 kt

In brief

At 1:00 pm CDT on Oct 13, 2026, NDBC station 45013 (Atwater Park, WI, 9 miles away) measured wind from the NW at 8 kt, gusting to 12 kt, with seas of 0.7 ft. The NWS forecast for Port Washington to North Point Light, WI issued at 1:10 pm CDT on Oct 13, 2026 reads, for rest of today: “Northwest wind 5 to 10 knots. Sunny.”

Source: National Weather Service Milwaukee/Sullivan WI forecast; NDBC observations

Wind forecast · ktPeak 33 kt

051015202530354045Wed 14Thu 15Fri 16051015202530354045Wed 14Thu 15Fri 16
Sustained GustOct 13-16 | CDT

Seas forecast · ftPeak 6 ft

0123456Wed 14Thu 15Fri 160123456Wed 14Thu 15Fri 16
Oct 13-16 | CDT

NWS marine forecast

PeriodForecast
Rest Of TodayNorthwest wind 5 to 10 knots. Sunny. Waves around 1 foot.
TonightNorth wind 5 to 10 knots. Chance of showers and slight chance of thunderstorms through around midnight. Slight chance of showers after midnight. Waves around 1 foot.
WednesdayNorth wind 10 to 15 knots becoming northeast 15 to 20 knots in the afternoon. Partly sunny. Waves 1 to 2 feet building to 3 to 4 feet in the late morning and afternoon.
Wednesday NightNortheast wind 15 to 20 knots becoming 10 to 20 knots after midnight, then veering east 15 to 20 knots early in the morning. Mostly cloudy. Waves 3 to 4 feet building to 4 to 6 feet in the late evening and overnight.

Issued Tue 1:10 PM by Milwaukee/Sullivan WI (product NSHMKX).

TimeWindGustSeasWater
Tue 1:00 PM 8 kt NW 12 kt 0.7 ft 60°F
Tue 12:30 PM 6 kt NNW 8 kt 0.7 ft 60°F
Tue 11:30 AM 10 kt NW 12 kt 0.7 ft 58°F
Tue 10:30 AM 14 kt WNW 18 kt 0.7 ft 59°F
Tue 9:30 AM 12 kt WNW 12 kt 0.7 ft 59°F
Tue 8:30 AM 12 kt WNW 14 kt 0.7 ft 56°F
Tue 7:30 AM 8 kt W 10 kt 0.7 ft 52°F
Tue 6:30 AM 10 kt W 16 kt 0.7 ft 50°F
Tue 5:30 AM 12 kt WSW 16 kt 0.7 ft 49°F
Tue 4:30 AM 14 kt W 18 kt 0.7 ft 49°F
Tue 3:30 AM 10 kt WSW 12 kt 1.0 ft 50°F
Tue 2:30 AM 8 kt WSW 10 kt 1.0 ft 50°F

Observed Tue 1:00 PM at NDBC buoy 45013 (Atwater Park, WI), 8.7 miles away.

What is the marine forecast for Port Washington to North Point Light today?

Rest Of Today: Northwest wind 5 to 10 knots. Sunny. Waves around 1 foot.

Is there a small craft advisory for Port Washington to North Point Light?

No advisories, warnings or watches are in effect for NWS zone LMZ644 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.

How high are the waves at Port Washington to North Point Light right now?

Seas are running 0.7 ft, measured at NDBC buoy 45013 Tue 1:00 PM, 8.7 miles from this zone. The forecast peaks at 6.0 ft Fri 12 PM.

What is the water temperature at Port Washington to North Point Light?

The nearest buoy read 60°F (16°C) at Tue 1:00 PM. Sea surface temperature at a single buoy can differ by several degrees from the water at a beach or in a shallow bay nearby.

What do the wind speeds in knots mean?

One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.

Where does this forecast come from?

The forecast text is the National Weather Service's own marine bulletin for zone LMZ644, issued by Milwaukee/Sullivan WI, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.

Forecast: NOAA/NWS product NSHMKX, issued Tue 1:10 PM. Observations: NOAA National Data Buoy Center station 45013, read Tue 1:00 PM. Retrieved Oct 13, 2:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.