textproduct: Los Angeles

SYNOPSIS

04/239 AM.

Temperatures will be slightly above normal inland and near normal along the coast through Friday, then dropping below normal over the weekend and into next week as a large low pressure system develops over the West coast. Skies will be mostly clear except for night and morning low clouds and fog across the coast and valley areas.

LONG TERM (SUN-WED)

04/240 AM.

June gloom will be in full swing from Saturday into Wednesday and likely through the end of the week. A series of upper lows will parade through the PacNW and will keep fairly sharp cyclonic turning over Srn CA. This coupled with mdt to strong onshore flow to the east will bring day after day of early arriving and late to leave low clouds to the area. The beaches will be in danger of zero clearing each afternoon. There may be a slight reduction in low clouds towards the end of the week as weak offshore flow does develop from the north. The area that will be the exception to the June Gloom rule will be the SBA south coast where local offshore flow from the north will minimizes the clouds and keep max temps running above normal. Max temps will fall by up to 6 degrees on Sunday and then will not change much Monday through Wednesday.

AVIATION

04/0941Z.

At 0831Z at KLAX, the marine layer was 800 feet deep. The top of the inversion was near 3600 feet with a temperature of 24 degrees Celsius.

High confidence in TAFs for KPRB, KWJF and KPMD.

Moderate confidence in TAF for KSBP where there is a 30 percent chc of LIFR conds 13Z-16Z.

Moderate confidence in TAFs for KBUR and KVNY where there is a 30 percent chc of no low clouds.

Moderate confidence in the remainder of the TAFs. VFR conds may arrive up to 2 hours later than fcst and cigs hgts could be off by +/- 200 ft.

KLAX...Moderate confidence in TAF. There is a 20 percent chc of cigs remain AOA 010. There is a 30 percent chc of SCT conds 21Z-01Z. No significant easterly wind component is expected.

KBUR...Moderate confidence in TAF. There is a 30% chance that there will be no low clouds.

MARINE

04/239 AM.

For the Outer Waters, moderate confidence in current forecast. Today through Monday, high confidence in combination of Small Craft Advisory (SCA) level winds and seas with a 20-30% chance of Gale force winds at times (especially across PZZ670).

For the Inner Waters north of Point Sal, moderate confidence in current forecast. Today through Monday, there is a 60-80% chance of SCA level winds during the afternoon and evening hours, with seas approaching SCA levels at times.

For the Inner Waters south of Point Conception, moderate confidence in current forecast. For a majority of the southern Inner Waters, winds and seas will remain below SCA levels through Monday. The only exception will be the western half of the Santa Barbara Channel, where there is a 30-40% chance of SCA level winds on Saturday and Sunday.

LOX WATCHES/WARNINGS/ADVISORIES

CA...Wind Advisory in effect until 5 AM PDT early this morning for zones 349-351-352-378-381. (See LAXNPWLOX). PZ...Small Craft Advisory in effect until 9 PM PDT this evening for zones 645-670-673-676. (See LAXMWWLOX). Gale Warning in effect until 3 AM PDT early this morning for zones 670-673-676. (See LAXMWWLOX).