Swell Matrix

Area Forecast Discussion

National Weather Service Los Angeles/Oxnard Ca

440 pm PDT Sun apr 26 2026

Synopsis

26/209 PM.

Below normal temperatures will continue through the middle of next week, and scattered showers will be possible late Wednesday into Thursday. A warming trend is expected towards the end of the week. Breezy west winds will occur at times across the beaches and deserts.

Short Term

(tdy-Tue), 26/239 PM.

Lingering moisture and instability will maintain a slight chance of showers over the mountains through today (<0.10 inch, if any). Skies have cleared out for main coasts and valleys, but cumulus clouds continue to bubble over the mountains and across much of Santa Barbara and San Luis Obispo Counties. Gusty westerly winds will persist through this evening (and again tomorrow afternoon/evening) across the beaches south of Point Conception and the Antelope Valley, due to strong onshore pressure gradients. Highs will mostly be in the mid and upper 60s through Monday. Rising 500 mb heights on Tuesday and Wednesday, combined with weak offshore flow during the morning will lead to slights warmer temperatures largely in the upper 60s to upper 70s. Expect mostly sunny skies to go with the warmer weather mid-week.

Long Term

(Wed-Sat), 26/220 PM.

Thursday the weak upper level low pressure system will sweep to the east, centered just south of of the Californa-Mexico border. A slight chance of showers will likely linger for Ventura and Los Angeles Counties on Thursday. Friday and Saturday, a weak ridge will yield warmer temperatures, though onshore flow will keep coastal low clouds and fog present during the mornings and overnight. Looking ahead, there are indications that another low pressure system may bring rain chances early next week (May 4-5th).

Aviation

26/2339z.

At 2300Z at KLAX, there was no marine layer nor an inversion.

Overall, high confidence in 00Z TAF Package. VFR conditions expected with SCT/BKN 040-060 cloud deck at times. Brief periods of MVFR CIGs around 025 is possible (20% chc).

KLAX, High confidence in TAF. VFR conditions expected with sct- bkn 060 cloud deck. Low chance of brief MVFR CIG 025 thru 27/18Z. No significant east wind component is expected.

KBUR, High confidence in TAF. VFR conditions expected with sct- bkn 050 cloud deck. Low chance (20% chc) of brief MVFR CIG 025-030 thru fcst pd.

Marine

26/117 PM.

For the Outer Waters, moderate to high confidence in current forecast. Today through Wednesday, there is a 20-30% chance of Small Craft Advisory (SCA) level winds. For Thursday through Friday, there is a 60-80% chance of SCA level winds.

For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. Today through Wednesday, there is a 30-40% chance of SCA level winds in the afternoon and evening hours. For Thursday through Friday, there is a 50-70% chance of SCA level winds in the afternoon and evening hours.

For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. Through this evening, high confidence in SCA level winds across PZZ650 with a 30-40% chance of SCA level winds across PZZ655. For Monday through Wednesday, high confidence in winds and seas remaining below SCA levels. For Thursday through Friday, there is a 50-70% chance of SCA level winds across the western half of the Santa Barbara Channel with high confidence in winds and seas remaining below SCA levels elsewhere.

Watches, Warnings, Advisories

Ca, NONE. PZ, Small Craft Advisory in effect until 9 PM PDT this evening for zone 650. (See LAXMWWLOX).

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