


Area Forecast Discussion
Issued by NWS Los Angeles, CA
Issued by NWS Los Angeles, CA
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059 FXUS66 KLOX 060236 AFDLOX Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 736 PM PDT Tue Aug 5 2025 .SYNOPSIS...05/733 PM. Temperatures will warm up to 4 to 8 degrees above normal Wednesday and Thursday, especially away from the immediate coast. Smoke from the Gifford fire will likely cause some air quality issues at times. A slight cooling trend is expected over the weekend but temperatures will remain above normal away from the immediate coast well into next week. && .SHORT TERM (TUE-FRI)...05/736 PM. ***UPDATE*** Not much to mention this evening. The forecast remains on track. Other than some high clouds and smoke from the Gifford Fire, expect minimal clouds tonight into Wednesday. Low clouds are likely to return to the Central Coast, including the Santa Ynez Valley and the LA County coast around or a couple hours after midnight. Additionally, there is a chance of low clouds over the Oxnard Plain later tonight. Other than some sub- advisory sundowners and gusty winds across the Antelope Valley & adjacent foothills, benign conditions are expected through tonight. Highs today were in the 80s to upper 90s away from the coast, with 70s along the coast south of Point Conception, and mainly 60s for the Central Coast. Highs are expected to bump up 3 to 6 degrees on Wednesday. ***From Previous Discussion*** The warming trend has begun on schedule and expected to continue through Thursday with only very minor cooling Friday. Overall highs today have been 2-4 degrees warmer than Monday and expecting a similar increase Wed and again Thursday when highs will peak around 104 in the warmer valleys, 100-106 in the AV, and 80s to low 90s in the intermediate areas like Downtown LA, and interior parts of the Central Coast. While these temperatures are 4-8 degrees above normal, that`s not quite enough to push heat risk values into the advisory category so for now no heat advisories are expected with this event. Coastal areas expected to stay in the 60s and 70s with areas of low clouds and fog mainly in the morning. Overall mostly light winds through the period except for locally breezy Sundowner winds across southwest Santa Barbara County the next few evenings and typical afternoon and evening winds across the AV. There will be some smoke impacts at times, especially across Santa Barbara County and northern SLO County. .LONG TERM (SAT-TUE)...05/221 PM. And additional 2-5 degrees of cooling is expected Saturday as high pressure aloft continues to weaken. This will bring temperatures back to +/- 2 degrees of normal. After that, very little day to day changes in the weather conditions across the area with the usual night and morning low clouds for most coast and some lower valleys. Most of the ensembles suggest near normal temperatures through next week and possibly even into the following week with no strong signals for a return of monsoon conditions. So overall the first couple weeks of August look very quiet weather-wise && .AVIATION...05/2342Z. At 2234Z, the marine layer depth was around 700 feet at KLAX. The top of the inversion was around 2200 feet with a temp of 27 C. High confidence in VFR conditions at airfields: KPRB, KBUR, KVNY, KPMD, and KWJF. Moderate to low confidence in remaining TAFs. Vis reductions possible at KSBP, KSMX, and KSBA due to FU from Gifford Fire with best chc for MVFR vsbys at KSBA. Most uncertain about whether or not CIGs arrive at KSBP (25%), KOXR (30%), KCMA (15%), & KSMO (40%). Arrival and departure of CIGs may be off by 2 hours with minimum cig heights off by +/- 200 ft. KLAX...Moderate confidence in 00Z TAF. Arrival and departure of CIGs may be off by 2 hours with minimum cig heights off by +/- 200 ft. No significant easterly wind component expected. KBUR...High confidence in VFR conditions through the fcst period. && .MARINE...05/733 PM. For the Outer Waters, Small Craft Advisory (SCA) winds and short period seas will continue through early Thursday night, and likely through Friday night. There will be a relative lull in winds during the morning hours with some portions falling below SCA level winds. There is a 60% chance SCA level winds will continue across the Outer Waters south of Point Conception through Friday evening. Winds and seas are expected to remain below SCA criteria over the weekend. For the nearshore waters along the Central Coast, SCA level winds will continue through late tonight. There is a 30-40% chance of SCA level winds Wednesday afternoon/eve, and a 60% chance on Thursday afternoon/eve. Conditions are expected to remain below SCA over the weekend. Isolated SCA level wind gusts are possible across the western portion of the Santa Barbara Channel each afternoon and evening through Friday. Local SCA wind gusts may develop each afternoon and evening near Point Dume and across the San Pedro Channel thru the weekend. Otherwise, conditions are expected to remain below SCA criteria through the weekend across the waters inside the southern California bight. && .LOX WATCHES/WARNINGS/ADVISORIES... CA...NONE. PZ...Small Craft Advisory in effect until 3 AM PDT Wednesday for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PDT Friday for zones 670-673-676. (See LAXMWWLOX). && $$ PUBLIC...MW/Black/CS AVIATION...Black MARINE...Black/Ciliberti SYNOPSIS...MW/Ciliberti weather.gov/losangeles Experimental Graphical Hazardous Weather Outlook at: https://www.weather.gov/erh/ghwo?wfo=lox