FXUS66 KLOX 242147 AFDLOX Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 247 PM PDT Tue Mar 24 2026 .SYNOPSIS...24/836 AM. Temperatures will remain above normal along the Central Coast at least through today and across all valleys and interior areas through this weekend. Coastal areas south of Pt Conception will be influenced by a stubborn marine layer that will keep temperatures on the cooler side until later in the week when increasing offshore flow returns to warm up those areas into the weekend. && .SHORT TERM (TDY-FRI)...24/124 PM. High pressure aloft over the eastern Pacific continues to divert all incoming storms well to the north. At lower levels the pattern is more complicated. South of Pt Conception a persistent marine layer around 1500 feet deep will continue at least another day or two, keeping coastal areas on the cooler side. However, by Thursday or Friday, pressure gradients are expected to shift at least slightly offshore and possibly as much as 3-4mb, leading to several degrees of warming and the departure of the marine layer. Still some uncertainty with temperatures there given the spread in gradients, but a majority of the ensembles show a strong enough offshore signal that should support a return of 80s to most coastal areas. Meanwhile, valleys and interior areas will continue to see temps at least 15-20 degrees above normal with a roughly 5 degree warm up between Wednesday and Friday. A return of gusty north to northeast winds across the mountains for the latter half of the week may require a low end wind advisory or two, particularly Thursday night. Along the Central Coast, offshore flow off the Santa Lucias peaked Monday and is weakening today. Temperatures are still well above normal inland but along the coast a significant cooling trend has already begun. Expecting additional cooling there Wednesday with even a 60-70% chance of some patchy dense fog along the coast, mainly south of Morro Bay. However, a return of light to moderate offshore flow is expected again Thursday, bringing 80+ degree temps to many areas as well as some northeast winds at times. Cooler temps likely Friday, though inland areas will still be well above normal. .LONG TERM (SAT-TUE)...24/147 PM. Well above normal temperatures are expected to continue through the weekend with light offshore flow and 500mb heights still above the 90th percentile for this time of year. Overall, most areas in the 80s and 90s. Not quite hot enough for heat advisories based on the forecast high and low temps, but if offshore flow is stronger than expected or temps are a few degrees warmer than some heat advisories may be needed. A cooling trend will begin Monday as the upper level pattern shifts towards troughing over the eastern Pacific. And finally a chance of rain next Tuesday and Wednesday. Ensembles have been slowly increasing rain amounts, in line with what the AI models have been suggesting. Still likely not a major storm for Southern California, but pretty decent for April. Latest projections are showing around an inch along the Central Coast and a half inch for southern areas. ***OF NOTE*** This has be a phenomenally warm month. Using the forecasted high temperatures for DTLA for today (the 24rd) to the 31st along with the max temps that have already occurred, the DTLA average max temp for the month would be 82.0 degrees. This would handily eclipse the previous record holders: 79.1 degrees in 2015 76.7 degrees in 2017 76.0 degrees in 1931 75.8 degrees in 1934 75.7 degrees in 1959 && .AVIATION...24/1819Z. At 18Z at KLAX, the marine layer was 1300 feet deep. The top of the inversion was at 2100 feet with a temperature of 20 C. High confidence TAFs for KPRB, KSBP, KSMX, KPMD & KWJF. Moderate confidence in remaining coastal TAFs. Timing of CIG/VSBY restrictions may be off +/- 2 hours. Cig hgt could vary by +/- 200 ft. Low confidence in KBUR and KVNY with a 30-50 percent chc of LIFR/VLIFR conds 10Z-17Z. KLAX...Moderate confidence in TAF. There is a 20 percent chc that low clouds could return by 00Z. No significant east wind component is expected. KBUR...Moderate confidence in TAF. VFR conds may not arrive until 17Z. There is a 50 percent chc of LIFR/VLIFR conds 10Z-17Z. && .MARINE...24/244 PM. For the Outer Waters, moderate to high confidence in current forecast. Through Thursday, high confidence in a combination of Small Craft Advisory (SCA) level winds and seas. For Wednesday, there is a moderate chance (30-50% chance) of GALES, likely to be focused during the afternoon thru overnight timeframe. Large seas of 10-14 feet are possible late Wednesday through early Friday. For the weekend, seas should generally remain below SCA levels with low to moderate chances for SCA winds. For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. For Today, there is a 40% chance of SCA winds. Followed by a 70-80% chance on Wednesday and Thursday. Winds will be strongest during the afternoon and evening hours. For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. For most of the southern Inner Waters, high confidence in winds and seas remaining below SCA levels through Thursday. The only exception will be the western half of the Santa Barbara Channel where there is a 20-30% chance of SCA level winds focused during the afternoon and evening hours Wednesday and Thursday. Dense fog is possible this week, focused in the late evening to early afternoon hours each day. Visibilities of one nautical mile or less can be expected. && .LOX WATCHES/WARNINGS/ADVISORIES... CA...Heat Advisory remains in effect until 8 PM PDT this evening for zones 340>342-346>348. (See LAXNPWLOX). PZ...Small Craft Advisory in effect from noon Wednesday to 9 PM PDT Thursday for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect until 9 PM PDT Thursday for zones 670-673. (See LAXMWWLOX). Small Craft Advisory in effect from 2 PM Wednesday to 9 PM PDT Thursday for zone 676. (See LAXMWWLOX). && $$ PUBLIC...MW AVIATION...Munroe MARINE...RM/Black SYNOPSIS...MW weather.gov/losangeles Experimental Graphical Hazardous Weather Outlook at: https://www.weather.gov/erh/ghwo?wfo=lox