East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island Marine Forecast
| Today...Western Portion, W Wind 10 To 15 Kt Becoming 20 To 25 Kt This Afternoon. Eastern Portion, W Wind 5 To 10 Kt Becoming 10 To 20 Kt This Afternoon. Seas 3 To 4 Ft, Building To 4 To 6 Ft. Wave Detail: W 5 Ft At 6 Seconds And S 2 Ft At 14 Seconds. Patchy Fog This Morning. |
| Tonight...Western Portion, Nw Wind 20 To 30 Kt Becoming 15 To 25 Kt After Midnight. Eastern Portion, W Wind 15 To 20 Kt Becoming Nw 10 To 15 Kt After Midnight. Seas 6 To 8 Ft. Wave Detail: Nw 7 Ft At 7 Seconds And S 2 Ft At 14 Seconds. |
| Thu...Western Portion, Nw Wind 10 To 20 Kt Becoming W 20 To 25 Kt In The Afternoon. Eastern Portion, Nw Wind 5 To 10 Kt Becoming W 10 To 15 Kt In The Afternoon. Seas 4 To 6 Ft. Wave Detail: W 5 Ft At 9 Seconds And S 2 Ft At 13 Seconds. |
| Thu Night...Western Portion, Nw Wind 20 To 30 Kt Becoming 10 To 20 Kt After Midnight. Eastern Portion, W Wind 10 To 15 Kt Becoming Light After Midnight. Seas 5 To 7 Ft. Wave Detail: Nw 6 Ft At 9 Seconds And S 2 Ft At 13 Seconds. |
| Fri...W Wind 5 To 10 Kt, Becoming 10 To 15 Kt In The Afternoon. Seas 3 To 5 Ft. Wave Detail: Nw 4 Ft At 9 Seconds And S 2 Ft At 14 Seconds. |
| Fri Night...Western Portion, Nw Wind 10 To 20 Kt. Eastern Portion, Sw Wind 5 To 10 Kt. Seas 3 To 5 Ft. Wave Detail: W 4 Ft At 8 Seconds And S 2 Ft At 14 Seconds. |
| Sat...Light Winds, Becoming W 10 To 15 Kt In The Afternoon. Seas 3 To 4 Ft. Wave Detail: W 3 Ft At 9 Seconds And S 2 Ft At 14 Seconds. |
| Sat Night...Western Portion, Nw Wind 10 To 20 Kt. Eastern Portion, Sw Wind 5 To 10 Kt. Seas 4 To 6 Ft. Wave Detail: W 5 Ft At 9 Seconds And S 2 Ft At 15 Seconds. |
| Sun...Light Winds, Becoming W 5 To 10 Kt In The Afternoon. Seas 3 To 5 Ft. Wave Detail: W 4 Ft At 9 Seconds And S 2 Ft At 15 Seconds. |
| Sun Night...Western Portion, Nw Wind 10 To 20 Kt. Eastern Portion, Sw Wind 5 To 10 Kt. Seas 3 To 5 Ft. Wave Detail: W 4 Ft At 9 Seconds. |
| Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 305am PDT Wednesday July 22 2026 Synopsis 22/243 AM. Hotter than normal conditions will continue through at least early next week. The hot daytime and warm night conditions will bring elevated risks for heat illness. Thursday through Sunday will generally be the hottest of the next seven days. Short Term - Today through Friday 22/1222 AM. Last evening brought a rapidly expanding fast moving marine layer stratus deck first to the Central Coast, then down through the SBA channel to southern SBA county and the Ventura coast and vlys. The clouds then pushed into LA county just before mid night. This unusual occurrence was brought about by an interesting interaction between the SW flow around the remnant core of Elida and a near 7 mb onshore push to the east. Today marks the start of a long duration heat wave. A heat advisory is in effect for much of the forecast areas from today through Monday evening. Please see the product LAXNPWLOX for details. Citizens are urged to take precautions to avoid heat related illness during this time. There will be 1 to 2 mb of offshore trends in the morning and this weakened onshore flow should allow for decently quick and complete clearing leave totally sunny skies by late morning. The sunny afternoon skies, slightly weaker onshore flow and 594 dam hgts (3 dam higher than normal) will all combine to make today a very warm day. Most areas away from the coast will see 3 to 6 degrees of warming (The mega exception to this will be the Central Coast where the return to onshore flow will bring 8 to 10 degrees of cooling). The inland coastal areas will reach the lower 90s, the vlys will sizzle with temps from 95 to 105 and the lower elevation mtns and far interior will all see highs from 100 to 105 degrees. Max temps (even those on the Central Coast) will be 5 to 10 degrees over normal today. 1 or 2 degrees of warming is possible both Thursday and Friday as the upper high pushes to the west and hgts remain at 594 dam. There may be some cooling at random coastal sites depending on how much the onshore flow fluctuates. The warmest vly locations will likely see 107 degree readings with all the rest of the vlys seeing highs no lower than the upper 90s. Two more items will compound the heat dangers. The overnight lows will be well above normal thru the period and this will not allow people's body's to recover from the days heat in houses without AC. Also due to the tropical systems passing to the west and the above normal sea surface temperatures there will be higher than normal humidities through period. These higher humidities will stifle the body;s ability to cool through sweating. There will be a little wind to deal with as well, mainly over southern Santa Barbara County, the I-5 Corridor, and the western Antelope Valley today through Friday Night. Look for northwesterly to north gusts of 30 to 50 mph in those areas. Advisory level gusts are likely across the southwest portion of Santa Barbara County. Long Term - Saturday through Tuesday 22/252 AM. The upper high will sit atop of the four corners region through Monday and then is forecast to shift a little to the east on Tuesday. Hgts will remain above normal - between 594 dam and 596 dam. The onshore flow will increase through the period. Not the best confidence in the low cloud forecast as the warm sea sfc temps and mid level monsoon moisture tend to suppress marine layer development. The monsoon push will likely bring some mtn build up in the afternoon over the mtns as well as low but not zero chance of convection. The the onshore flow will bring a slight cooling trend to the csts and some vlys but max and min temps will remain well above normal and the heat advisories will continue through Monday. By Tuesday the shift of the upper high and strong onshore flow to the east should bring enough cooling to allow the advisories to expire. Long range models still suggest another heat event later next week. Marine 22/214 AM. Northwest winds will strengthen to Small Craft Advisory (SCA) levels today, and will likely continue through the weekend. Chances also increase for SCA (Small Craft Advisory) level west to northwest winds across the western half of the Santa Barbara Channel each afternoon and evening. Additionally, there is a 30% chance of Gale Force wind gusts across the outer waters this afternoon through at least Thursday night, and 20% chance into the western portion of the Santa Barbara Channel Thursday late afternoon and evening. A series of moderate period southerly swells will move through the waters through the week and likely beyond, along with a long period southern hemisphere swell arriving late this week. These swells may impact south facing harbors, including the Port San Luis area. Beaches 22/214 AM. Over the eastern Pacific, Hurricane Fausto, located 700 NM SW of southern Baja, will move WNW between 15 to 20 N latitude through at least the next 5 days. This system is bringing an elevated South-Southwesterly swell into the region. Therefore, High Surf Advisories and Beach Hazards Statements are in effect through Tuesday night. A long period, southern hemisphere swell will arrive later this week/Thursday night and add to the continuing swell from Fausto. This will create additional hazardous beach conditions late this week and weekend. Additional Beach Hazards Statements and Advisories will likely be needed during this time. Looking beyond the forecast period, a series of tropical systems are forecast to develop off the coast of Mexico and move to the northwest, likely producing multiple rounds of southerly swells over the next couple of weeks. NOAA Los Angeles/Oxnard CA Office: Watches - Warnings - Advisories CA...Heat Advisory remains in effect from 10am this morning to 8 pm PDT Monday for zones 38-88-342>345-348-351>353-355>358-368>382-548. Heat Advisory remains in effect from 10am this morning to 8 pm PDT Thursday for zones 349-350. Extreme Heat Warning in effect from 10am Thursday to 8 PM PDT Monday for zone 383. PZ...Small Craft Advisory in effect from 3pm this afternoon to 3 am PDT Thursday for zone 650. Small Craft Advisory in effect from 3pm this afternoon to 9 pm PDT this evening for zone 655. Small Craft Advisory in effect until 5pm PDT Thursday for zones 673-676. https://www.weather.gov/erh/ghwo?wfo=lox |
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