textproduct: Los Angeles

SYNOPSIS

16/253 AM.

Gusty northerly winds are expected across southern Santa Barbara County and the LA and Ventura interior mountains through the morning. A few degrees of cooling are expected today with temperatures returning to normal over the weekend into at least early next week.

LONG TERM (SUN-WED)

16/253 AM.

Not too much excitement in the xtnd fcst. The large and very warm upper high will remain camped out over the western half of the county. Hgts will change little over the state through the period and will be near 592 dam.

Most of the actual weather will be controlled by the sfc gradients. Look for strong onshore flow on Sunday and then gradual weakening of both the E/W and N/S gradients through next week.

Night through morning low clouds will affect the csts each day. The hgts may be strong enough to keep the marine layer smooshed enough to keep the stratus out (or mostly out) of the lower vlys.

Max temps will not change much from Saturday's slightly below normal reading through Monday. 2 to 3 degrees of warming is on tap for Tue and Wed as the offshore trends continue.

There will be a significant increase in PWATs Sunday and greater than 1 inch values will continue through Wednesday. This will make the temps feel a little more uncomfortable and could lead to some convection over the mtns in the afternoons. At this time there is a 10 percent or less chc of mtn convection in the afternoon, but this fcst could change given the abundance of moisture.

AVIATION

16/0611Z.

At 0518Z at KLAX, the marine layer was 800 ft deep. The top of the inversion was at 2600 ft with a max temperature of 30 C.

High confidence in TAFs for KPRB, KSBA, KBUR, KVNY, KPMD and KWJF.

Good confidence in the rest of the TAFs with a 25 percent of no restrictions at KSMX and a 25 percent chc of LIFR cigs/vis at the reamining sites 12Z-16Z.

KLAX...Good confidence in TAF. There is a 25 percent chc of BKN004 conds 12Z-16Z. Any east wind component is expected to remain below 6 kt.

KBUR...High confidence in TAF.

MARINE

16/134 AM.

Small Craft Advisory (SCA) level northwest winds across the Outer Waters will continue through late tonight. There is a 25% chance of Gales later into early this morning. Seas are expected to build to near 10 feet through this evening. The elevated winds and seas will extend into the western Santa Barbara Channel and nearshore waters along the Central Coast this afternoon through late night.

Winds are expected to improve Friday through the weekend while the northwest swell lowers. However, short period choppy seas from a southerly swell associated with tropcial activity well south of the area will impact our waters late this weekend into much of next week.

BEACHES

16/135 AM.

The Beach Hazards Statement was allowed to expire earlier this morning as the southerly swell has decreased, and the high tides are expected to be lower than the previous days.

Beginning Sunday, storms over the Eastern Pacific waters well south of the area could produce increasing southerly swell resulting in additional and potentially more significant hazardous beach conditions, especially during late next week.

LOX WATCHES/WARNINGS/ADVISORIES

CA...Extreme Heat Warning in effect until 8 PM PDT this evening for zones 38-88-349>353-356>358-368>375-378>383-548. (See LAXNPWLOX). Heat Advisory remains in effect until 8 PM PDT this evening for zones 87-341>345-347-348-354-355-362-366-367-376-377-549-550. (See LAXNPWLOX). Red Flag Warning in effect until 9 AM PDT this morning for zones 349>353-376>378. (See LAXRFWLOX). PZ...Small Craft Advisory in effect until 3 AM PDT Friday for zones 645-670-673-676. (See LAXMWWLOX).