Area Forecast Discussion
Issued by NWS Los Angeles, CA

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530 FXUS66 KLOX 021008 AFDLOX Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 308 AM PDT Wed Jul 2 2025 .SYNOPSIS...30/1100 PM. Skies will be clear except for night through morning low clouds across the coasts and some valleys through next weekend. Afternoon high temperatures will be 3 to 6 degrees below normal through the weekend. && .SHORT TERM (TDY-FRI)...
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02/1206 AM. The streak of benign weather will continue through the short term and through the weekend as well. A little dry trof will move through today and will produce, at worst, some mtn CU. Thursday will feature a little pop up ridge followed by another trof on Friday. Hgts mostly rise through the period from 580 dam this afternoon to about 588 dam on Friday. At the sfc mdt to stg onshore flow will persist through the 3 day period. The night through morning low cloud pattern will continue but the coverage will lessen each morning as the the hgts rise and smoosh the marine layer down. Max temps today will mostly be in the 70s for the csts and 80s for the vlys. Local vly hot spots will see highs in the lower 90s. A little strong onshore push from the south will bring some cooling to the vlys but otherwise max temps will be similar to today. The interior will see noticeable cooling on Friday, but there will be little change across the cst/vlys. Look for a weak Sundown this evening and a stronger one that could reach advisory levels on Friday night. .LONG TERM (SAT-TUE)...02/259 AM. Hgts will hover between 588 dam and 590 dam Sat thru Tue. The sfc gradients will weaken esp Tuesday when neutral or even weak offshore flow could develop. Night through morning low clouds will continue but the high hgts and weaker onshore flow will keep most of the vlys cloud free. Most areas will see some warming each day Sat through Mon with Monday`s temps south of Pt Conception reaching the mid 70s to mid 80s for most of the csts and mid 80s to mid 90s for the vlys. The Central Coast will see max temps from the mid 60s to 70s csts and lower to mid 80s in the vlys. Despite this warm up most max temps will remain a few degrees blo normal (except 6 degrees blo normal for the Central Coast). The decrease in onshore flow is forecast to bring 2 to 4 degrees of warming to all of the area on Tuesday with a 30 percent chc of 4 to 8 degrees. Above normal confidence continues for a significant warm up starting Tue or more likely Wed with moderate to possible high heat impacts over the coastal valleys and interior. Triple digit heat is possible for warmer coastal valleys to the interior. This warm up would likely last to at least Friday. Monsoon moisture may push as far west as Ventura County by the middle of next week which would increase the heat concerns closer to the coast as well. There is a small (10 percent chance) of thunderstorms over the mtns and deserts of LA/VTA Counties beginning Tuesday. Any TSTM that forms could produce dry lightning, gusty winds, and local flooding.
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&& .AVIATION...02/0531Z. At 0519Z at KLAX, the marine layer was 1200 ft deep. The top of the inversion was at 2800 feet with a temperature of 23 C. High confidence in TAFs for KPRB, KWJF, and KPMD. There is a 15% chance for LIFR to IFR conds at KPRB between 08Z and 16Z. Low confidence in TAFs for KBUR and KVNY with 40% percent chc of LIFR to IFR cigs through 16Z. Moderate confidence in remaining TAFs. Lowest cig height may be off by +/- 300 feet. Lower confidence in time of dissipation of cigs Wed (+/- 2 hours). There is a 30% chance for no clearing at KCMA, KLAX, KSMO. There is a 40% chance for SCT conds at KOXR after 20Z. KLAX...Moderate confidence in TAF. There is a 10% chance for OVC003-004 cigs through 15Z. There is a 30% chance for not clearing of low clouds Wed. No significant east wind component is expected through Wed, then moderate confidence in any east wind component remaining below 6 kts between 07Z Thursday and the end of the period. KBUR...Low confidence in TAF with 40% chc of BKN002-008 cigs through 17Z. && .MARINE...
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02/128 AM. Small Craft Advisory (SCA) winds are likely across the Outer Waters much of the time through the 4th of July Weekend, with a lull possible tonight into Thursday morning before ramping back up. SCA winds are also likely each afternoon and evening for the nearshore waters along the Central Coast from Thursday through the weekend. Local Gale Force wind gusts are possible Thursday through Sunday, with best chances around the western Channel Islands and in the northern Outer Waters Thursday afternoon and evening (30% chance). Seas will build to 8 to 10 feet at times from this afternoon through the weekend. Inside the southern California bight, there is a moderate (30-50%) chance of SCA level winds each day through the weekend during the afternoon and evening hours through the Santa Barbara Channel (strongest winds focused in the western portions), near Point Dume, and into the San Pedro Channel. Patchy dense fog may affect the coastal waters, especially north of Point Conception overnight and in the morning hours through this weekend.
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&& .BEACHES...
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02/102 AM. A longer period south swell has a moderate chance of producing strong rip currents Thursday through the upcoming holiday weekend, with the longest period (17+ seconds) late Wednesday into Thursday night. A beach hazards statement may be issued to highlight elevated surf conditions and strong rip current activity in the surf zone. If planning on heading to the beach Thursday through the 4th of July Weekend, always swim near an occupied lifeguard tower and heed their advice/warnings.
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&& .LOX WATCHES/WARNINGS/ADVISORIES...
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CA...NONE. PZ...Small Craft Advisory in effect from 3 PM this afternoon to 3 AM PDT Thursday for zones 650-670-673-676. (See LAXMWWLOX).
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&& $$ PUBLIC...Rorke AVIATION...Lewis MARINE...Lewis BEACHES...Hall/Lewis SYNOPSIS...30 weather.gov/losangeles Experimental Graphical Hazardous Weather Outlook at: https://www.weather.gov/erh/ghwo?wfo=lox