textproduct: Los Angeles

SYNOPSIS

30/247 AM.

Cooler conditions will occur today and Monday. More warm, tropical moisture could return Tuesday through Thursday. Marine layer clouds will gradually redevelop, and increase in coverage Sunday into early this coming week.

LONG TERM (WED-SAT)

30/248 AM.

Rather benign weather is on tap for the xtnd period. There is good agreement between the medium range mdls that a troffing pattern will persist through Saturday. At the sfc there will be mdt onshore flow to the east in the afternoons along with weak offshore flow from the north in the mornings. This should develop a night through morning cloud pattern for most of the csts save for the SBA south coast where offshore flow overnight should keep that area clear.

Slowly rising hgts will bring a degree or two of warming each of the four days. Even with this warming most areas will have below normal temps with the major exceptions of the LA/VTA csts and the San Gabriel Vly.

Some subtropical moisture is possible early next week (Sep 7-9) but there is a fair amount of mdl disagreement on this.

AVIATION

30/0947Z.

At 0832Z at KLAX, the marine layer was 900 feet deep with an inversion to 2900 feet with a temperature of 28 degrees C.

Fair confidence in TAF at KSBP with a 20% chance for LIFR-IFR conds from 13Z-17Z.

Moderate confidence in TAF for KSMX. VFR fcst timing may be off by an hour and there is a 20% chance for VLIFR conds and FG.

High confidence in VFR TAFs at remaining sites. Less than 10% chance for IFR conds for LA County coastal sites 13Z-17Z.

KLAX...High confidence in TAF. There is less than 10% chance of BKN005-009 conds 13Z-17Z. Good confidence in any east wind component remaining below 7 kt.

KBUR...High confidence in TAF.

MARINE

30/248 AM.

High confidence in Small Craft Advisory (SCA) northwest winds (20-30 knots) and steep, choppy seas for the outer waters. These hazardous conditions will reach into the nearshore waters along the Central Coast and into the Santa Barbara Channel at times (especially during the afternoon/evening hours). Local wind gusts may approach 35 knots near Point Conception in the afternoon and evening hours through tonight. Conditions are expected to improve Monday with only local SCA level wind gusts near Point Conception Monday and Tuesday. Chances for more widespread SCA winds increase Wednesday into the remainder of the week.

LOX WATCHES/WARNINGS/ADVISORIES

CA...Wind Advisory in effect until 6 AM PDT early this morning for zones 349-351. (See LAXNPWLOX). Beach Hazards Statement in effect through Monday afternoon for zones 354-362-366. (See LAXCFWLOX). PZ...Small Craft Advisory in effect until 3 AM PDT early this morning for zones 645-650. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PDT Monday for zones 670-673-676. (See LAXMWWLOX).