Marine Forecast
Illustrated map of Lake Tahoe

Marine forecast

Cape Mendocino to Pt. Arena CA (10-60 nm)

current wind
10 kt NNW
Gusts
14 kt
Seas
7.9 ft
Period
13 sec
Water
55°F

Observed Tue 12:10 PM | PZZ475

Gusts now
14 kt
Seas now
7.9 ft · 13 sec
Water
55°F
72-hr peak
22 kt
Peak seas
8 ft

In brief

At 12:10 pm PDT on Oct 13, 2026, NDBC station 46014 (PT ARENA - 19NM North of Point Arena, CA, 46 miles away) measured wind from the NNW at 10 kt, gusting to 14 kt; buoy 46213 measured seas of 7.9 ft. The NWS forecast for Cape Mendocino to Pt. Arena CA (10-60 nm) issued at 8:33 am PDT on Oct 13, 2026 reads, for rest of today: “N wind 15 to 20 kt. Seas 9 ft.” A Small Craft Advisory is in effect until Wed 3:00 PM.

Source: National Weather Service Eureka CA forecast; NDBC observations

Wind forecast · ktPeak 22 kt

051015202530Wed 14Thu 15Fri 16051015202530Wed 14Thu 15Fri 16
Sustained GustOct 13-16 | PDT

Seas forecast · ftPeak 10 ft

012345678910Wed 14Thu 15Fri 16012345678910Wed 14Thu 15Fri 16
Oct 13-16 | PDT

Marine advisory

Small Craft Advisory in effect for Cape Mendocino to Pt. Arena CA (10-60 nm) until Wed 3:00 PM.

Full text of this small craft advisory

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 6 to 9 feet. * WHERE...Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm. * WHEN...Until 3 PM PDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft.

NWS marine forecast

PeriodForecast
Rest Of TodayN wind 15 to 20 kt. Seas 9 ft. Wave Detail: NW 8 ft at 8 seconds and NW 4 ft at 15 seconds.
TonightN wind 15 to 20 kt. Seas 8 ft. Wave Detail: NW 6 ft at 7 seconds and NW 4 ft at 14 seconds.
WedN wind 15 to 20 kt. Seas 8 ft. Wave Detail: NW 6 ft at 6 seconds and NW 4 ft at 14 seconds.
Wed NightNW wind 10 to 15 kt. Seas 8 ft. Wave Detail: NW 6 ft at 6 seconds and NW 4 ft at 13 seconds.
ThuN wind 10 to 15 kt. Seas 7 ft. Wave Detail: N 6 ft at 7 seconds and NW 4 ft at 12 seconds.
Thu NightN wind 10 to 15 kt. Seas 7 ft. Wave Detail: N 4 ft at 6 seconds and NW 5 ft at 12 seconds.
FriN wind 10 to 15 kt. Seas 6 ft. Wave Detail: N 5 ft at 6 seconds and NW 4 ft at 12 seconds.
Fri NightN wind 15 to 20 kt. Seas 6 ft. Wave Detail: N 6 ft at 6 seconds and W 3 ft at 11 seconds.
SatN wind 15 to 20 kt. Seas 7 ft. Wave Detail: N 6 ft at 6 seconds and W 5 ft at 13 seconds.
Sat NightN wind 15 to 20 kt. Seas 9 ft. Wave Detail: N 7 ft at 6 seconds and W 6 ft at 13 seconds.

Issued Tue 8:33 AM by Eureka CA (product CWFEKA).

Synopsis

Clear skies and northerly winds forecasted through the day. Seas remain steep and hazardous to smaller crafts through the morning in the outer waters as decaying short period seas mix with a moderately large NW swell. Moderate to fresh breezes and diminishing seas expected for areas outside the lee of Cape Mendocino for much of the week.

TimeWindGustSeasWater
Tue 12:10 PM 10 kt NNW 14 kt — 55°F
Tue 11:50 AM 10 kt NNW 12 kt 5.9 ft 55°F
Tue 10:50 AM 8 kt NNW 10 kt 5.6 ft 55°F
Tue 9:50 AM 8 kt NNE 10 kt 6.2 ft 55°F
Tue 8:50 AM 6 kt N 6 kt 6.6 ft 55°F
Tue 7:50 AM 6 kt N 6 kt 7.2 ft 55°F
Tue 6:50 AM 4 kt NNE 6 kt 6.6 ft 55°F
Tue 5:50 AM 6 kt NE 8 kt 5.9 ft 55°F
Tue 4:50 AM 8 kt N 8 kt 7.2 ft 55°F
Tue 3:50 AM 10 kt N 12 kt 6.9 ft 55°F
Tue 2:50 AM 12 kt NNW 14 kt 6.6 ft 55°F
Tue 1:50 AM 6 kt NW 8 kt 6.9 ft 55°F

Observed Tue 12:10 PM at NDBC buoy 46014 (PT ARENA - 19NM North of Point Arena, CA), 46.1 miles away. Seas from buoy 46213 (Cape Mendocino, CA (094)), 42.1 miles away, at Tue 12:00 PM.

What is the marine forecast for Cape Mendocino to Pt. Arena CA (10-60 nm) today?

Rest Of Today: N wind 15 to 20 kt. Seas 9 ft. Wave Detail: NW 8 ft at 8 seconds and NW 4 ft at 15 seconds.

Is there a small craft advisory for Cape Mendocino to Pt. Arena CA (10-60 nm)?

Yes — small craft advisory in effect until Wed 3:00 PM.

How high are the waves at Cape Mendocino to Pt. Arena CA (10-60 nm) right now?

Seas are running 7.9 ft at a 13-second period, measured at NDBC buoy 46014 Tue 12:10 PM, 46.1 miles from this zone. The forecast peaks at 8.0 ft Tue 12 PM.

What is the water temperature at Cape Mendocino to Pt. Arena CA (10-60 nm)?

The nearest buoy read 55°F (13°C) at Tue 12:10 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 PZZ475, issued by Eureka CA, 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 CWFEKA, issued Tue 8:33 AM. Observations: NOAA National Data Buoy Center station 46014, read Tue 12:10 PM. Retrieved Oct 13, 12:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.