West Compton, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

481
FXUS66 KLOX 271619
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
919 AM PDT Fri Jun 27 2025

.SYNOPSIS...27/1204 AM.

Night and morning low clouds and fog will affect the coasts and
some valleys, otherwise mostly clear skies are expected across
the area with gusty onshore winds each afternoon. Temperatures
will change little over the weekend and into early next week.

&&

.SHORT TERM (TDY-SUN)...27/855 AM.

***UPDATE***

Latest satellite and surface observations indicate blanket of
stratus/fog across the coasts and coastal valleys with clear skies
elsewhere. Current sounding data indicates marine inversion
ranging in depth from 1200 to 1700 feet. No significant winds are
currently observed.

Forecast-wise for the immediate short term, another benign day is
expected. Stratus/fog will dissipate through the morning although
stratus is likely to linger at the beaches through the afternoon
hours. Otherwise, sunny skies will prevail. Morning TEMP STUDY
database indicates temperatures today will be within a couple
degrees of Thursday`s highs. As for winds, the moderate onshore
gradients will generate gusty southwesterly winds across interior
sections this afternoon. Also, there will likely be some weak
Sundowner winds this evening across the western half of the Santa
Ynez Range. However, wind speeds for all areas will remain below
advisory levels.

Overall, current forecast has good handle on the immediate short
term. So, no significant updates are expected.

***From Previous Discussion***

Weak cyclonic flow aloft and an eddy have lifted the marine layer
to about 1300 ft and low clouds have moved into the csts and vlys.
The onshore push to the east will increase from 3 mb this morning
to about 8 mb this afternoon. This will mean another day of slow
clearing with no clearing at some west facing beaches. Slightly
weaker onshore flow to the north will allow for a couple of
degrees of warming for most areas south of Pt Conception while
Central Coast sees little change in temps. Most areas south of Pt
Conception will come in 2 to 4 degrees blo normal while the
Central Coast (with highs mostly in 60s) will end up 4 to 8
degrees under normals.

A little ridge noses in from the SE on Saturday this will smoosh
the marine layer some and will result in less morning marine
clouds in the vlys. The onshore flow will be a little weaker as
well so the low clouds will clear quicker and more completely. Max
temps, as a result, will warm 2 to 4 degrees across the board.

Sunday will be quite similar to Saturday. Onshore flow may be a
little stronger so max temps may cool a degree or two. Look for
mostly 70s across the coasts, 80s in the vlys and upper 80s to mid
90s across the interior and lower mtn elevations.

The moderate onshore push to the east will bring the typical
gusty southwesterly afternoon winds to interior sections (esp the
western Antelope Vly), but speeds will remain below advisory
levels. Additionally, there will be some localized sub advisory
Sundowner winds each evening.

.LONG TERM (MON-THU)...27/1218 AM.

Not much change at all for the xtnd fcst. Both the GFS and EC
agree that a high hgt (582 dam) upper low will develop in the east
pac and then slowly move across the state during the week. This
is a little different than the fcst ydy at this time when the fcst
call for an open trof. Despite the change, this change will not
affect the fcst.

There will be mdt onshore flow in the mornings and stg onshore
flow in the afternoon. This onshore flow pattern coupled with the
cyclonic turning aloft will result persistent night through
morning low cloud pattern. The low clouds will affect almost all
of the csts/vlys and clearing will be on the slow side with some
beaches remaining cloudy all day. Aside from the low clouds skies
will be clear.

Max temps will exhibit little day to day change. Most max temps
will be a few degrees blo normal with the exception for the
Antelope Vly and interior vlys of SLO and SBA counties. Coastal
temps will mostly be in the 70s (a little cooler for the Central
Coast) and the vlys will be in the 80s.

With continued strong afternoon onshore pressure gradients, gusty
southwesterly winds can be expected each afternoon/evening across
interior sections. However, speeds should remain below advisory
levels.

&&

.AVIATION...27/1617Z.

At 16Z at KLAX, the marine layer was 1800 ft deep. The top of the
inversion was at 3200 ft with a temperature of 23 Celsius.

High confidence in VFR TAFs for KPMD and KWJF with seasonally
gusty onshore winds.

Moderate confidence in very similar timing, ceilings, and flight
categories for the next 24 hours and the previous, except for
likely slow/minimal afternoon clearing at KSBA KOXR today.

KLAX...High confidence in ceilings returning tonight. Moderate
confidence in timing (+/- 2 hours) and base height (+/- 300
feet). Moderate confidence in TAF. Moderate confidence that any
southeast winds will stay under 6 knots.

KBUR...60% chance of ceilings returning tonight. If they return,
moderate confidence in timing (+/- 3 hours) and base height (+/-
300 feet).

&&

.MARINE...27/917 AM.

Small Craft Advisory (SCA) level winds and steep short period
seas of 7 to 9 feet will linger this morning, especially beyond 20
miles from the Central Coast, but will continue to trend down
through tonight. High confidence in unseasonably quiet conditions
to follow through at least Sunday. NW winds will increase Sunday
through Thursday from the Central Coast to San Nicolas Island,
returning to seasonal SCA levels as early as Monday (30% chance)
or certainly by Wednesday (100%) chance. There is a low but
present chance of reaching Gales on Thursday.

Night to morning dense fog is possible through the weekend off
the Central Coast.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...Small Craft Advisory in effect until 3 PM PDT this afternoon
      for zone 670. (See LAXMWWLOX).

&&

$$

PUBLIC...Rorke/Thompson
AVIATION...Kittell
MARINE...Kittell
SYNOPSIS...Lewis

weather.gov/losangeles

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