Wilmington, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

449
FXUS66 KLOX 150358
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
858 PM PDT Thu Aug 14 2025

.SYNOPSIS...14/117 PM.

The cooling trend will continue through Saturday and by the weekend
temperatures will be 5 to 10 degrees below normal. Night through
morning low clouds and fog will continue for coast and coastal
valleys through the period. A warming trend will begin Sunday.

&&

.SHORT TERM (THU-SUN)...14/857 PM.

***UPDATE***

Cool today due to the trough and a deepening marine layer. Made
some adjustments to Friday and Saturday`s high temperatures due
to a 10 degree cool down through San Luis Obispo today. Otherwise,
the forecast looks on track. Sundowner winds have developed this
evening over western portions of the Santa Ynez Range, and are
expected to end by the morning hours. This cooling trend for the
warm interior will continue for the next few days with marine
layer clouds reaching the valleys each night.

***From Previous Discussion***

Daytime highs continue to cool each day as an unseasonably deep
trough develops over the PacNW, creating a deeper marine layer
locally and increasing onshore flow. The cooling trend is
expected to continue through Saturday before we turn the corner to
warmer days starting Sunday. In the meantime, we`ll see a steady
dose of night and morning stratus that pushes well inland and
slowly clears through the day, though like today possibly not
clearing some beaches. Temperatures have already fallen below
normal by 4-8 degrees in most areas and expecting that to reach
6-12 degrees below normal by Saturday.

One last night of borderline advisory level Sundowner winds across
southwest SB County before pressure falls to the north associated
with the developing West coast trough reverses the flow to the
south.

Although a warming trend is expected to begin Sunday, in reality
it will be barely noticeable and would not be surprised if there
is little change or even slight cooling Sunday as the trough in
the PacNW is still in place and bringing in waves of moisture into
Washington.

.LONG TERM (MON-THU)...14/202 PM.

Early next week the trough to the north will weaken and allow
high pressure from the 4 corners region to expand west into
California. Highs are expected to increase 2-4 degrees in most
areas away from the beaches. However, it`s going to take until at
least Tuesday or Wednesday before highs get back to normal, with
Thursday being the warmest of the week. Triple digit temperatures
are expected again across the western San Fernando Valley, Santa
Clarita Valley, and the deserts. Overall highs expected to be 4-8
degrees below normal by mid week.

There is also a small chance of some monsoon moisture returning by
middle to end of next week. Ensembles are averaging around a
little over an inch of PW so there is a non-zero chance of some
convection, mainly far eastern areas like the San Gabriel
Mountains.

&&

.AVIATION...15/0256Z.

At 2229Z at KLAX, the marine layer was 1600 ft deep. The top of
the inversion was at 3600 ft with a temperature of 23 Celsius.

High confidence in VFR TAFs for KPMD and KWJF with seasonally
gusty SW to W winds.

Moderate confidence in all other TAFs. Moderate confidence in
return timing of cigs (plus or minus 2 hours) and minimum flight
cat. There is a chance for flight cats to briefly be one cat
lower. Cigs may fail to clear for KOXR, KSMO, and KLAX.

KLAX...Moderate confidence in TAF. Southeast winds will likely
form with the best chances from 09Z to 16Z, but high confidence
in any east wind component staying under 8 knots. Cigs may fail to
clear tomorrow afternoon.

KBUR...Moderate confidence in TAF. Ceilings will return tonight,
with lower confidence in timing. There is a 20% chance for brief
008-009 cigs when clouds are present.

&&

.MARINE...14/825 PM.

High confidence in seasonally gusty NW winds across the waters
beyond 20 miles from shore between the Central Coast to San
Nicolas Island, with Small Craft Advisory (SCA) conditions common
each day into next week, except for some morning lulls starting
Friday and Saturday. Brief and very localized gale force gusts to
35 knots from Point Conception to San Nicolas Island may occur
each evening. The nearshore Central Coast waters will see winds
rising to near-SCA levels each afternoon and evening. The western
Santa Barbara Channel will also see SCA conditions each late
afternoon and evening, but confidence in winds becoming widespread
enough to warrant an SCA is low, except for tonight. All areas
will see choppy seas from these winds in the late afternoon
through late night hours.

A long period south swell will continue to bring hazardous waves
nearshore and elevated currents near harbor entrances possibly
through tonight, but should improve Friday and Saturday.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Wind Advisory remains in effect until 5 AM PDT Friday for
      zones 349-351. (See LAXNPWLOX).
PZ...Small Craft Advisory in effect until 3 AM PDT Friday for zone
      650. (See LAXMWWLOX).
     Small Craft Advisory in effect until 3 AM PDT Saturday for
      zone 670. (See LAXMWWLOX).
     Small Craft Advisory in effect until 6 AM PDT Friday for
      zones 673-676. (See LAXMWWLOX).

&&

$$

PUBLIC...Phillips/MW
AVIATION...Phillips
MARINE...Kittell/Lewis/CC
SYNOPSIS...MW

weather.gov/losangeles

Experimental Graphical Hazardous Weather Outlook at:
https://www.weather.gov/erh/ghwo?wfo=lox