textproduct: Los Angeles

SYNOPSIS

29/910 AM.

Hot and muggy conditions will linger in some areas through today, followed by with widespread improvement by Sunday. 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)

29/1249 PM.

There is a small chance that tropical moisture and thus showers and thunderstorm risk will linger into Wednesday, but is most likely to be dry. Otherwise mostly quiet weather with a gradual warming trend is favored for Wednesday into the following weekend. An upper level troughing pattern appears likely for a fairly long duration, which will maintain a robust marine layer at the coasts and coastal plains. Somewhere around September 7-9th there are signals for another round of tropical moisture to impact SoCal.

AVIATION

29/2336Z.

At 2228Z at KLAX, the marine layer was 900 feet deep with an inversion to 2900 feet with a temperature of 28 degrees C.

Low confidence in TAF at KSBP with a 40% chance for LIFR-IFR conds from 07Z-17Z.

Moderate confidence in TAF for KSMX. There is a 30% chance for no low clouds. Otherwise timing of arrival may be off by 2 hours 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 10Z-17Z.

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

KBUR...High confidence in TAF.

MARINE

29/1241 PM.

Through this weekend, high confidence in Small Craft Advisory winds and 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 gusts may approach 35 kt near Point Conception this afternoon and evening. For next week, most waters are likely to fall below SCA levels Monday and Tuesday. Increasing chances for SCA conditions later in the week, highest on Thursday afternoon through Friday.

LOX WATCHES/WARNINGS/ADVISORIES

CA...Heat Advisory in effect until 8 PM PDT this evening for zones 88-349-350-354>358-362-366>375-548. (See LAXNPWLOX). Wind Advisory in effect until 6 AM PDT Sunday for zones 349-351. (See LAXNPWLOX). PZ...Small Craft Advisory in effect until 3 AM PDT Sunday for zones 645-650. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PDT Monday for zones 670-673-676. (See LAXMWWLOX).