textproduct: Los Angeles

SYNOPSIS

14/1152 AM.

Slight warming is expected through Friday, then cooler over the weekend before a warming trend moves in for Monday through Wednesday. Gusty winds are expected at times across the mountains and deserts through the weekend. Hazardous seas are expected for the coastal waters over the next several days.

LONG TERM (MON-THU)

14/1150 AM.

Early next week, as the trough moves out the area to the east, 500 mb heights will gradually trend upwards. Additionally there is around a 30 percent chance of periods of weak offshore flow, particularly Monday and Tuesday mornings. Northeast wind gusts of around 20 to 30 mph will be possible across the wind prone mountains. If offshore flow does occur, coastal temperatures have the potential to warm into the upper 70s and low 80s, otherwise highs in the 60s will be favored. Overall a warming trend is expected Monday through Wednesday, with the highest confidence for inland areas. Away from the beaches, highs will increase from mid 70s to low 80s on Monday to the 80s to around 90 by Wednesay (5 to 10 degrees above normal) then turn only slightly cooler on Thursday. Marine layer low clouds and fog will be possible each day across the coast and valleys.

AVIATION

14/1736Z.

At 1638Z at KLAX, the marine layer was 2500 ft deep. The top of the inversion was at 4000 ft with a temperature of 15 C.

High confidence in VFR TAFs for desert airfields (KPMD & KWJF).

Moderate confidence in remaining TAFs. Timing of CIG/VSBY restrictions may be off +/- 2 hours and flight minimums off by one category.

KLAX...Moderate confidence in TAF. Clearing of MVFR CIGs 020-025 expected 19Z-21Z Thursday. CIGs near 010-012 should return 08Z Friday (+/- 2 hours). CIGs expected to gradually lift reaching 020 threshold by mid-morning Friday. There is a 20% chance of east wind component reaching 7-8kts 12Z-16Z Friday.

KBUR...Moderate confidence in TAF. No wind issues expected.

MARINE

14/149 PM.

GALE WARNINGS have been issued. Refer to MWWLOX for details.

For the outer waters from the Central Coast to San Nicolas Island, high confidence in Small Craft Advisory (SCA) winds and seas lasting through tonight. STRONG GALES are expected Friday through the weekend with large 10-15+ foot steep seas.

Periods of SCA conditions are expected for the nearshore Central Coast waters through Friday morning. STRONG GALES are expected from Friday afternoon through Sunday evening. GALE WATCH for the Santa Barbara Channel has been issued with a high chance that it will be converted to a WARNING with future updates.

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

BEACHES

14/149 PM.

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.

LOX WATCHES/WARNINGS/ADVISORIES

CA...High Surf Advisory in effect from 3 PM Friday to 9 AM PDT Monday for zones 340-346. (See LAXCFWLOX). 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). PZ...Small Craft Advisory in effect until 9 PM PDT this evening for zone 645. (See LAXMWWLOX). Gale Warning in effect from 3 PM Friday to 9 PM PDT Sunday for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PDT Friday for zone 670. (See LAXMWWLOX). Gale Warning in effect from 3 AM Friday to 3 AM PDT Monday for zone 670. (See LAXMWWLOX). Small Craft Advisory in effect until 3 PM PDT Friday for zone 673. (See LAXMWWLOX). Gale Warning in effect from 3 PM Friday to 3 AM PDT Monday for zone 673. (See LAXMWWLOX). Small Craft Advisory in effect until 6 PM PDT Friday for zone 676. (See LAXMWWLOX). Gale Warning in effect from 6 PM Friday to 3 AM PDT Monday for zone 676. (See LAXMWWLOX).