Topanga Nearshore, CA (103)

NDBC station 46268 (Topanga Nearshore, CA) is a platform - special marine observation station at 34.022°N 118.578°W, operated by SCRIPPS. PierMonkey reads its observations straight from the NOAA National Data Buoy Center and republishes them free, with no account required to see current conditions.

It reports significant wave height, dominant and average wave period, wind speed, gusts and direction, air and sea-surface temperature, and barometric pressure; full spectral wave-energy density, which separates overlapping swell trains by period and direction; ocean-current profiles through the water column; and tide predictions from the nearest NOAA CO-OPS station.

PierMonkey uses buoy 46268 as the observation source for the surf forecast at Malibu (Surfrider), about 9 km away. Swell that registers here shows up at the break shortly afterwards, which is what makes this station worth watching.