Point Piedras Blancas to Point Sal from 10 to 60 NM Marine Forecast
| Today...Nw Winds 25 To 30 Kt With Gusts To 40 Kt. Strongest Western Portion. Combined Seas 8 To 10 Ft Dominant Period 8 Seconds, Building To 10 To 12 Ft In The Afternoon. |
| Tonight...Nw Winds 20 To 30 Kt With Gusts To 35 Kt. Combined Seas 12 To 15 Ft Dominant Period 10 Seconds. |
| Tue...Nw Winds 20 To 30 Kt With Gusts To 35 Kt. Strongest Western Portion. Combined Seas 11 To 15 Ft Dominant Period 11 Seconds. Patchy Fog In The Morning. |
| Tue Night...Nw Winds 20 To 30 Kt With Gusts To 35 Kt, Becoming 15 To 25 Kt Late. Combined Seas 11 To 14 Ft Dominant Period 11 Seconds. |
| Wed...Nw Winds 20 To 30 Kt With Gusts To 40 Kt, Becoming 15 To 25 Kt With Gusts To 30 Kt In The Afternoon. Combined Seas 11 To 14 Ft Dominant Period 11 Seconds. |
| Wed Night...Nw Winds 15 To 25 Kt With Gusts To 30 Kt. Combined Seas 10 To 12 Ft Dominant Period 11 Seconds. |
| Thu...Nw Winds 15 To 25 Kt. Combined Seas 7 To 10 Ft. |
| Fri...Nw Winds 15 To 20 Kt. Combined Seas 7 To 8 Ft. Patchy Fog. |
| Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 1040am PDT Monday April 29 2024 Synopsis 29/835 AM. Mostly clear skies and warmer temperatures will prevail across the region through this week, although some night through morning coastal low clouds and fog can be expected at times. Gusty northwest to north winds will prevail over the mountains and deserts at least through Tuesday. Short Term - Today through Wednesday ...29/834 AM. ***UPDATE*** A weak eddy brought low clouds and fog into parts of the L.A. County coast early this morning. Low clouds and fog also formed over interior areas of northern SLO County as well as the eastern Santa Ynez Vly. These low clouds are forecast to dissipate by late this morning. Otherwise, sunny skies covered the forecast area this morning which will continue thru this afternoon. Northerly pressure gradients increased early this morning helping to keep gusty NW to N winds over portions of the SW SBA County mtns and coast, VTU County mtns, L.A. County mtns along the I-5 Corridor, and the western Antelope Vly foothills into the Antelope Vly. Advisory level wind gusts to 40 to 50 mph at times can be expected in these areas today, especially this afternoon, and Wind Advisories will continue. Breezy to gusty W-NW winds will also affect much of the coast and adjacent vlys thru this afternoon, strongest on the Central Coast where winds could approach Advisory levels at times. A flat upper level pattern with H5 heigheights around 576 dam will persist over the area today, helping to keep temps near normal to a few degrees above normal. Highs this afternoon for the inland coast, vlys and lower mtns should reach the 70s to low 80s, with the warmest temps in the western San Fernando Vly. ***From Previous Discussion*** Not much going on for the next three days. Winds will be the only concern. The state will be under NW slightly cyclonic flow through the period with hgts near 576 dam today and Tuesday falling to 574 dam on Wed. There will be continuous offshore flow from the north through the three day period peaking near 5 mb early Tuesday morning. There will be weak onshore flow to the east both today and Wednesday but it will be weakly onshore on Tuesday. Skies will be mostly clear through the period. The only possible exceptions will be some night through morning low clouds over two small areas. The first area will be the western portion of SBA county where west winds will create back building low clouds in the Santa Ynez valley which will spread back into the coastal plain. The second area will be the LGB-LAX area where a weak eddy may bring some low clouds up from the south in the early mornings. As mentioned above winds will be the biggest issue over the next 72 hours. The offshore N to S gradients will combine with the northerly upper level flow to produce periods of advisory level winds from now until Tuesday afternoon and beyond into Wednesday. The winds will peak tonight as the offshore surface gradients reach their peak. Due to the diurnal cycle of the pressure gradients there will be lulls in the winds esp in the afternoons and early evenings. Please see the product LAXNPWLOX for all of the wind advisory informations. Most areas will warm today and Tuesday. Max temps will cool some on Wednesday as the offshore flow relaxes. Most max temps across the csts/vlys will be in the 70s with a smattering of lower 80s in the warmest vly locations. These max temps will be a few degrees either side of normal. Long Term - Thursday through Sunday 29/319 AM. The EC and GFS (Global Forecast System) both ensembles and deterministic runs are in decent agreement Thu and Fri. At the upper levels there will be increasing trough.iness which would normally cool things, but another round of offshore flow from both the north and east will prevent that and actually warming to the coasts and vlys. On Friday a reversal to onshore flow will bring increased morning low clouds and cooling to the csts and vlys. Mdl agreement wanes sharply for the weekend day 6 and 7 forecast. The GFS and esp its deterministic run is steadfast in its resolve to bring a late season storm to the area. The EC and most of its ensembles just run a broad trough over the area. The GFS ensembles are pretty varied and do not strongly support the stormy scenario. At this time the weekend forecast is biased towards the EC solutions and is dry. There will be a cooling trend each day with the GFS coming in much cooler than the EC. Again the cooling trend has been slanted in the EC's direction. Still need to keep an eye on the evolution of the GFS's forecast and if the EC shows any trend towards a deeper wetter soln as well. Marine 29/947 AM. For the outer waters, the extended period of gale force winds is expected to continue thru at least Tuesday night. Swell will continue to be short- period and choppy, with the potential for dangerous breaking waves at west- facing harbors. SCA (Small Craft Advisory) conds are expected for the outer waters, Wednesday thru Fri, with a 30% chance of gales persisting into Wednesday night. In the inner waters N of Pt. Sal, SCA (Small Craft Advisory) level winds are likely thru Tuesday night, with a 25% chance of gale force winds this afternoon/evening. Then, there is a 50% chance of SCA (Small Craft Advisory) conds during the afternoon/evening hours Wednesday thru Fri. Seas are expected to be at/near SCA (Small Craft Advisory) level through Wed. In the SBA Channel, SCA (Small Craft Advisory) level W-NW winds are expected, particular across western portions, during the afternoon thru late night hours thru Wed. Winds will likely remain below SCA (Small Craft Advisory) levels for eastern portions of the channel, most of the time through the period. In the southern inner waters, there is a 20% chance of SCA (Small Craft Advisory) level W to NW winds across northwestern portions, mainly from Anacapa Island to Malibu during the late afternoon thru late evening hours today thru Tue. Beaches 29/947 AM. Persistent strong winds and outer water swell heigheights of 10-15 feet with a 10 second period will lead to high surf (8-12 feet) along the Central Coast this afternoon through Tuesday night. Surf will be highest across northwest-facing beaches. There is a 40% chance of high surf advisory criteria lingering through Wednesday evening. NO coastal flooding is expected. NOAA Los Angeles/Oxnard CA Office: Watches - Warnings - Advisories CA...High Surf Advisory in effect from 2pm this afternoon to 2 AM PDT Wednesday for zones 340-346. (See LAXCFWLOX). Wind Advisory now in effect until 3pm PDT Tuesday for zones 349-351. Wind Advisory in effect until 3pm PDT Tuesday for zones 352-353-376-377. Wind Advisory remains in effect until 3pm PDT Tuesday for zones 378-381-383. PZ...Small Craft Advisory in effect until 3am PDT Wednesday for zone 645. Small Craft Advisory in effect from 3pm this afternoon to 3 am PDT Tuesday for zone 650. Gale Warning in effect until 3am PDT Wednesday for zones 670-673-676. https://www.weather.gov/erh/ghwo?wfo=lox |
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