Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands Marine Forecast
| Today...Light Winds, Becoming W 5 To 10 Kt This Afternoon. Seas 3 To 4 Ft. Wave Detail: Nw 3 Ft At 7 Seconds And S 2 Ft At 14 Seconds. Patchy Fog This Morning. |
| Tonight...W Wind 10 To 15 Kt, Becoming 5 To 10 Kt After Midnight. Seas 3 To 5 Ft. Wave Detail: Nw 3 Ft At 6 Seconds, Nw 3 Ft At 9 Seconds And S 2 Ft At 14 Seconds. Patchy Fog. |
| Thu...Light Winds, Becoming W 5 To 10 Kt In The Afternoon. Seas 3 To 5 Ft. Wave Detail: Nw 3 Ft At 8 Seconds And S 2 Ft At 14 Seconds. Patchy Fog In The Morning. |
| Thu Night...W Wind 10 To 15 Kt, Becoming Nw 5 To 10 Kt After Midnight. Seas 3 To 5 Ft. Wave Detail: Nw 4 Ft At 7 Seconds And S 3 Ft At 14 Seconds. Patchy Fog. |
| Fri...Nw Wind 5 To 10 Kt. Seas 3 To 5 Ft. Wave Detail: Nw 2 Ft At 8 Seconds And S 3 Ft At 15 Seconds. Patchy Fog In The Morning. |
| Fri Night...Nw Wind 10 To 20 Kt. Seas 4 To 6 Ft. Wave Detail: Nw 5 Ft At 6 Seconds And S 3 Ft At 16 Seconds. Patchy Fog. |
| Sat...Nw Wind 10 To 20 Kt. Seas 4 To 6 Ft. Wave Detail: Nw 5 Ft At 7 Seconds And S 3 Ft At 17 Seconds. Patchy Fog In The Morning. |
| Sat Night...Nw Wind 15 To 20 Kt. Seas 5 To 7 Ft. Wave Detail: Nw 6 Ft At 7 Seconds And S 3 Ft At 16 Seconds. |
| Sun...Nw Wind 15 To 20 Kt. Seas 4 To 6 Ft. Wave Detail: Nw 5 Ft At 7 Seconds And S 3 Ft At 15 Seconds. |
| Sun Night...Nw Wind 20 To 25 Kt. Seas 5 To 7 Ft. Wave Detail: Nw 6 Ft At 7 Seconds And Sw 2 Ft At 15 Seconds. |
| Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 256am PDT Wednesday August 12 2026 Synopsis 11/1147 PM. A cooling trend will continue through Thursday, with cooler than normal temperatures expected across the area into the weekend. There is a chance of mountain and occasional lower elevation convection through at least Wednesday night. More robust marine layer cloud coverage is likely this week, however, higher clouds may disrupt the formation of the marine layer at times. Short Term - Today through Friday 12/1214 AM. Troffing will set up over the west coast today and will continue through Friday. Hgts will fall to 584 dam today and then to 582 dam Thursday. At the surface there will be mdt-stg onshore flow both to the north and east. Most of the coast will wake up to low clouds this morning with some patchy dense fog across the Central Coast. Skies otherwise will be partly to mostly cloudy as plenty of mid and high level clouds drift overhead. There will be enough low level moisture to allow for a chance of TSTMs over the mtns esp the northern VTA county ones. A small vort lobe will drift over SBA/SLO counties and will bring a chance of showers/TSTMs to those areas as well. Max temps will drop 4 to 8 locally 10 degrees as the marine layer, onshore flow, cloud cover and lowering hgts all conspire together. Most max temps will end up about 6 degrees under normals. On Thursday the SW flow from the trough will bring enough drying to eliminate the convective threat. The onshore flow and trough.ing aloft will gin up a pretty robust marine layer cloud deck that will cover most of the csts and will xtnd into the vlys. Clearing will be slower than normal and some beaches may only see limited clearing. Another 2 to 4 locally 6 degrees of cooling will bring max temps that are 2 to 4 degrees below normals across the csts and a whopping 5 to 10 degrees across the vlys. Vly highs will only be in the upper 70s to mid 80s. Not much change is slated for Friday and the day should greatly resemble Thursday. The onshore push to the east will top out near every afternoon. This strong push will generate gusty winds across the Antelope Valley and its foothills. There will be a 20-30 percent chance of low end wind advisories each afternoon. Long Term - Saturday through Tuesday 12/246 AM. Good agreement with all of the medium range mdls. The west coast trough will persist through Saturday with hgts rising to 588 dam. The trough will then be pushed to the west by a powerful upper high that spans most of the southern portion of the CONUS. Srn CA will then be under flat dry SW. Hgts will climb to 592 dam. At the sfc the mdt to stg onshore flow to the east will continue but the onshore push to the north will weaken substantially and might even be offshore by Tuesday or Wednesday. The weather will be benign through the period. There will be plenty of night through morning low clouds and fog across the csts. Due to the rising hgts the marine layer will be shrunk to under a 1000 ft which should keep it out of the vlys. Skies, otherwise, will be mostly clear. The weakening onshore flow to the north will also lessen the amount of coastal low clouds early next week esp if the offshore flow develops. Gusty but still sub-advisory levels winds will continue across the Antelope Vly. Temps will begin to warm on Saturday. Look for 2 to 4 degrees of warming on Saturday and Sunday and 1 to 2 degrees each day Monday and Tuesday. Even with the four days of warming max temps Tuesday will remain 2 to 4 degrees below normal. Marine 12/255 AM. High confidence that conditions will remain below Small Craft Advisory (SCA) across all of the southwestern California coastal waters through at least Friday night. However, localized gusts near 20 kt are possible each afternoon and evening off the coast of Long Beach through at least Thursday night. Patchy dense fog are possible on the Central Coast each morning. There is also a 5-10% chance of showers or a thunderstorm over the coastal waters through Wednesday. NOAA Los Angeles/Oxnard CA Office: Watches - Warnings - Advisories CA...Coastal Flood Advisory in effect until midnight PDT tonight for zones 349-350-354-362-366. (See LAXCFWLOX). PZ...NONE. |
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