17/125 PM.
Slight warming and a shrinking marine layer are expected Friday into the weekend. However, temperatures will remain 3-6 degrees through at least the middle of next week.
(tdy-Sun), 17/135 PM.
Not much to say about the local weather conditions for at least the next week or so. An upper level low over northern California will move slowly east resulting in a minor warming trend Friday and Saturday, then little change Sunday, though high temperatures will still just be within a few degrees of normal either way. Pressure gradients in all directions will remain light so no significant winds expected the next few days. There's a good chance that marine layer cloud coverage south of Pt Conception will be much less starting Friday, though still expecting morning stratus along the Central Coast through the weekend.
(Mon-Thu), 17/150 PM.
Another little trough moves in late Sunday into Monday for a slight cooling trend but probably not that noticeable. The only potential impact will be the likely return of the marine layer to southern areas and 1-3 degrees of cooling area-wide.
The pendulum will swing back towards warming by the middle of next week but again nothing dramatic in terms of temperatures. Highs in the warmer valleys will return to the lower 90s, which is basically near normal for this time of year, while Downtown LA and other inland coastal areas get back into the low to mid 80s, which again is close to normal. Most of the ensembles indicate fairly light gradients next week, except mid to late week where there is 40-50% chance of weak to moderate Sundowners in the Santa Barbara area.
17/1753z.
At 1716Z at KLAX, the marine layer was 3900 feet deep. The top of the inversion was at 5800 feet with a temperature of 16 C.
High confidence in TAFs for KPMD and KWJF.
Moderate confidence in remaining sites. MVFR to VFR cigs should burn off by 20Z. There is a 30% for MVFR cigs at KSBA after 15Z. 30% chance for no cigs at KOXR, KCMA, KVNY, and KBUR tonight. 10% chance for LIFR conds at KPRB/KSBP/KSMX late tonight.
KLAX, Moderate confidence in TAF. Cigs may vary between 025 and 035 through 20Z. BKN035 conds may persist through 00Z. Return of MVFR cigs tonight likely between 07Z and 13Z. Good confidence that any east wind component tonight will remain below 8 kt.
KBUR, Moderate confidence in TAF. Cigs may vary between 025 and 035 through 20Z. BKN035 conds may persist through 00Z. 30% chance for no cigs tonight.
17/142 PM.
Moderate confidence in fairly typical Small Craft Advisory (SCA) northwest winds developing across the outer waters this afternoon and evening focused south and west of Point Sal, then higher confidence in more widespread SCA winds Friday through Sunday across the outer waters and nearshore waters along the Central Coast. Choppy, short period seas will develop.
SCA winds will likely remain confined to the western portions of the Santa Barbara Channel this afternoon and evening, but there is a 40-60% chance for SCA winds spreading to eastern portions Friday through Sunday (in the afternoon/evenings). Local gusts near 20 knot will be common each afternoon and evening through the San Pedro Channel and Santa Monica Bay.
Ca, NONE. PZ, Small Craft Advisory in effect from 3 PM to 9 PM PDT Friday for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect from 3 PM Friday to 3 AM PDT Saturday for zone 670. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PDT Saturday for zones 673-676. (See LAXMWWLOX).
