textproduct: Los Angeles

SYNOPSIS

15/139 PM.

Near to slightly below normal temperatures are expected to continue this weekend with low clouds and fog lingering into the afternoon across coast and some valleys south of Pt Conception. Gusty winds are expected at times along the Central Coast, and across the mountains and deserts through the weekend, strongest on Saturday. Hazardous seas will impact the coastal waters over the next several days. Warmer temperatures are expected next week, especially in the desert.

LONG TERM (TUE-FRI)

15/209 PM.

There is increasing uncertainty in the forecast for the rest of next week particularly Wednesday and beyond as the models appear to be unsure whether the trough over the Pac NW will start to expand south or stay as is. The bulk of the latest guidance numbers favors either slight warming or a leveling off of temperatures but there is a growing number of solutions that suggest a deepening of the trough and cooling temps for the latter half of the week, especially inland. In either case, impacts would be minimal with highs within 5 degrees of normal in all areas and just typical afternoon sea breezes.

AVIATION

16/0045Z.

At 0007Z at KLAX, the marine layer was 1800 ft deep. The top of the inversion was at 5000 ft with a temperature of 19 C.

High confidence in KPMD & KWJF TAFs.

Moderate confidence in remaining TAFs. Timing of CIG/VSBY restrictions may be off +/- 3 hours and flight minimums off by one category.

KLAX...Moderate confidence in TAF. Timing of flight cat changes could be off by +/- 3 hours, with cigs arriving anywhere between 03-06Z. Good confidence that any east wind component remains below 7 kts.

KBUR...Moderate confidence in TAF. Timing of flight cat changes may be off by +/- 3 hours. No wind issues expected.

MARINE

15/217 PM.

GALE WARNINGS are in effect for the inner waters along the Central Coast, all the outer waters, and the Santa Barbara Channel this weekend. Please refer to MWWLOX for further details.

For the outer waters from the Central Coast to San Nicolas Island, high confidence forecast. Winds will continue to increase to GALE FORCE levels today, becoming high-end, STRONG GALES over the weekend. Local gusts may reach STORM FORCE late Saturday afternoon into evening. SCA level seas will continue to build through the weekend, becoming large 10-18 foot steep seas.

For the inner waters along the Central Coast, Small Craft Advisory (SCA) level seas will continue through the weekend. Winds will increase to high-end, STRONG GALE FORCE levels this afternoon and continue through Sunday evening.

For the inner waters south of Point Conception, GALE WARNING for the Santa Barbara Channel goes into effect Saturday afternoon through late night, with a moderate risk of GALE FORCE winds again Sunday afternoon and evening. For the southern inner waters adjacent to the L.A. Coast, SCA conditions expected Saturday afternoon through Sunday morning. Highest seas and strongest winds expected across western portion. Localized GALE Force wind gusts are possible Saturday evening near Anacapa Island.

These dangerous sea conditions could capsize or damage small and large vessels. Mariners should adjust plans NOW to remain in safe harbor.

BEACHES

15/518 PM.

A combination of strong winds, large seas, and moderately high evening high tides may lead to high surf with minor coastal flooding possible this weekend. High Surf advisories and Beach Hazard statements have been issued across the entire coastline. Please refer to CFWLOX for more details for your area.

In general, hazardous surfing and swimming conditions are expected. Minor beach erosion and coastal flooding is possible, mainly during the evening high tides.

LOX WATCHES/WARNINGS/ADVISORIES

CA...High Surf Advisory in effect until 9 AM PDT Monday for zones 340-346. (See LAXCFWLOX). Wind Advisory remains in effect from 3 PM to 9 PM PDT Saturday for zones 340-341-346>348. (See LAXNPWLOX). High Wind Warning in effect from 3 PM Saturday to 9 AM PDT Sunday for zones 349-351>353. (See LAXNPWLOX). Beach Hazards Statement in effect from Saturday afternoon through Monday morning for zones 349-350. (See LAXCFWLOX). High Surf Advisory in effect from 3 PM Saturday to 9 AM PDT Monday for zone 354. (See LAXCFWLOX). Beach Hazards Statement in effect from Saturday evening through Monday morning for zones 362-366. (See LAXCFWLOX). High Wind Warning in effect from 9 PM this evening to 9 AM PDT Sunday for zones 376>378. (See LAXNPWLOX). High Wind Warning in effect from 9 PM this evening to 11 PM PDT Sunday for zones 381-383. (See LAXNPWLOX). Wind Advisory remains in effect from noon to 11 PM PDT Sunday for zone 382. (See LAXNPWLOX). Red Flag Warning in effect from 10 AM to 10 PM PDT Saturday for zones 381-383. (See LAXRFWLOX). PZ...Gale Warning in effect until 9 PM PDT Sunday for zone 645. (See LAXMWWLOX). Gale Warning in effect from noon Saturday to 5 AM PDT Sunday for zone 650. (See LAXMWWLOX). Gale Watch in effect from Saturday afternoon through late Saturday night for zone 655. (See LAXMWWLOX). Gale Warning in effect until 3 AM PDT Monday for zones 670-673-676. (See LAXMWWLOX). Small Craft Advisory in effect until 6 PM PDT this evening for zone 676. (See LAXMWWLOX).