Southern California outlook as of Saturday, July 23: A small South (180°) push from Hurricane Dora this weekend, then a brief pause in the action until Thursday when a new South-Southwest (193°) ground swell arrives.
(1) Moderate 12-second energy from Hurricane Dora persists throughout the weekend. The storm was East of the Southern California swell window during its peak, and the majority of the generated swell was focused towards Cabo San Lucas. At the moment, the National Hurricane Center has downgraded Dora to a tropical storm (Advisory #21), with maximum sustained winds of 45 mph. Cold, Eastern Pacific water strikes again.
(2) 20-second forerunners from the South (185°) are forecast to arrive Wednesday afternoon. This energy is coming from the South Pacific, and is visible in the swell wave period chart below (Tuesday, July 26 at midnight UTC) as the yellow swath crossing the equator between 120° W and 100° W longitudes.
(3) The South swell is forecast to build Wednesday night into Thursday, with primary swell conditions reaching 3 feet at 18 seconds (193°). The swell is expected to peak Thursday evening, then slowly decline Friday and into the weekend. It looks like the swell will be battling a local WNW wind swell as it pushes North, which is visible in the swell period chart below (Thursday, July 28 at 18:00 UTC). Keep an eye on the real-time reports from the Point Loma South buoy beginning Wednesday evening for a better idea of how the swell is shaping up.