textproduct: Los Angeles

SYNOPSIS

25/1252 AM.

Hotter than normal conditions will continue for the foreseeable future, generally hottest through Sunday. Slight cooling is expected Monday through Wednesday, with heat increasing again Thursday into the weekend. The hot daytime and warm night conditions will bring elevated risks of heat-related illness. Gusty NW winds will affect SW Santa Barbara County at times, with gusty onshore winds over the interior.

LONG TERM (TUE-FRI)

25/1252 AM.

The large area of high pressure will continue to dominate through next week. The core of the high will shift a little to the east Tuesday through Wednesday and bring a touch of relief to the heat, but only by a few degrees. Coastal areas will see the most noticeable drop as onshore pressure gradients strengthen some and low clouds and fog will likely expand some.

The majority of the ensemble solutions show the ridge of high pressure pushing back to the west around Friday or Saturday of next week. This will likely push temperatures back up a few degrees, but the warming may be mainly focused over the mountains and interior valleys as the onshore flow changes little. Thankfully, precipitable water values do not shoot up like they have over our last week or two of warm ups, which means the air will feel drier than it has.

AVIATION

25/1800Z.

At 1654Z over KLAX, the marine layer was 1400 ft deep. The top of the inversion was 3500 ft with a max temperature of 28 Celsius.

High confidence in VFR conditions through Sunday at KPRB, KSBP, KSBA, KBUR, KVNY, KPMD AND KWJF. Chances for MVFR cigs at KOXR until early this afternoon is high. Chances for cigs tonight into Sunday morning...LIFR/IFR conds at KSMX (70%)...IFR/MVFR conds at KOXR (60%) KCMA (60%) KSMO (60%) KLAX (70%) KLGB (80%). Timing of onset of low clouds tonight may be off +/- an hour or two. Winds will be similar to last 24 hours.

KLAX...60% chance of BKN010-012 11-17Z Sunday. High confidence in any east winds staying under 6 knots.

KBUR...High confidence in VFR through Sunday with typical winds.

MARINE

25/826 AM.

High confidence in persistently strong NW winds from the Central Coast to San Nicolas Island through at least Tuesday Night. Gusts of 30-40 knots will be common each afternoon and night, bordering between strong Small Craft Advisory (SCA) and low-end Gale Warnings. These winds will also affect the western Santa Barbara Channel each night, and may cover enough of the channel to need a SCA. With these winds, widespread choppy or steep seas is likely. In addition, patches of dense fog are possible anywhere through Sunday or Monday, especially off the Central Coast.

BEACHES

25/829 AM.

A long period, southern hemisphere swell will arrive this morning and will add to the continuing swell from Hurricane Fausto. This swell will result in an increased risk of dangerous rip currents across the coastal beaches, as well as elevated surf of 3-6 ft across the Los Angeles and Ventura County Beaches. Therefore, Beach Hazard Statements are in effect through the weekend for Los Angeles and Ventura County beaches and the Central Coast beaches. Rip currents and elevated surf will be strongest across south to southwest facing beaches and harbors such as Avila Beach.

The Eastern Pacific looks to remain active with tropical systems over the next couple of weeks. This could result in additional southerly swells to impact the coastline.

LOX WATCHES/WARNINGS/ADVISORIES

CA...Heat Advisory remains in effect until 8 PM PDT Monday for zones 38-88-342>345-348>358-362-366>382-548. (See LAXNPWLOX). Beach Hazards Statement in effect through Sunday evening for zones 340-346-354-362-366. (See LAXCFWLOX). Extreme Heat Warning in effect until 8 PM PDT Monday for zone 383. (See LAXNPWLOX). PZ...Small Craft Advisory in effect until 3 AM PDT Sunday for zones 645-676. (See LAXMWWLOX). Small Craft Advisory in effect from 6 PM this evening to 3 AM PDT Sunday for zone 650. (See LAXMWWLOX). Small Craft Advisory in effect until 2 PM PDT this afternoon for zones 670-673. (See LAXMWWLOX). Gale Warning in effect until 3 AM PDT Sunday for zones 670-673. (See LAXMWWLOX).