Los Nietos, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

740
FXUS66 KLOX 281629
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
929 AM PDT Sat Jun 28 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-MON)...28/845 AM.

***UPDATE***

The forecast is well on-track, and no changes have been made to
the ongoing forecast.

***From Previous Discussion***

Very uneventful weather on tap for the next three days (actually
the next 7). At the upper levels a high hgt (~581 dam) upper low
will spin to the west of Pt Conception. Hgts over the area will be
around 584 dam. At the sfc there will be weak to moderate onshore
flow in the morning which will strengthen with the diurnal cycle
to mdt to stg in the afternoon. There will be little change to
this pattern through Monday.

There is no eddy this morning so the low clouds are filling slower
than last night and will likely not cover the vly areas a few
miles either side of the VTA/LA county lines. Look for decent
clearing by this afternoon with only the western beaches of VTA
and SBA counties remaining cloudy. Hgt are a few dam higher than
ydy and this should lead to a degree or two of warming away from
the coasts.

Maybe a little less low clouds in the vlys tonight and Sunday
morning as the gradients are forecast to slacken just a bit. This
will also bring another degree or two of warming to the vlys. The
vlys will see max temps in the upper 80s to the mid 90s. These vly
temps are 3 to 5 degrees above normal.

A little better onshore flow on Monday will translate to an
earlier arrival of the low clouds and more complete vly coverage.
Max temps will cool by 2 to 3 degrees.

No wind issues are forecast. Gusty southwest winds will continue
each afternoon/evening across interior sections with some weak
Sundowners each evening. Any advisory-level winds will remain very
localized, if develop at all.

.LONG TERM (TUE-FRI)...27/1148 PM.

The dull June Gloom weather will persist through the xtnd period.
Both the EC and GFS are in good agreement and forecast weak
cyclonic flow through the period. Hgts will not change much and
will hover around 584 dam.

The night through morning low cloud pattern will continue
unchecked over the csts and vlys, while the interior will see only
clear skies. The afternoon onshore push will be near 8 mb which
will result in slower than normal clearing with some beaches
staying cloudy for most or all of the day.

There will be little in the way of day to day temperature change.
Any change will result from little variations in the marine layer
depth and onshore flow. Max temps will be in the upper 60s to
lower 70s near the csts, mid to upper 70s for the inland cstl
sections, mostly 80s in the vlys and finally upper 80s and 90s
across the lower mtn elevations and far interior. Most max temps
will be 3 to 6 degree below normal with the exception of the
Antelope Vly which will be 2 to 3 degrees over normal.

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...28/1628Z.

At 1615Z at KLAX, the marine layer was 1100 ft deep. The top of
the inversion was at 4000 ft with a temperature of 22 deg C.

For 18Z TAF package, high confidence in KPRB, KWJF and KPMD.

For all other sites, moderate confidence in 18Z TAFs. Timing of
dissipation/arrival of CIG/VSBY restrictions could be +/- 2 hours
of current forecasts. Also, minimum flight categories could be off
by one category.

KLAX...Overall, moderate confidence in 18Z TAF. Timing of return
of CIG/VSBY restrictions could be +/- 2 hours of current 03Z
forecast. No significant easterly wind component is expected.

KBUR...Overall, moderate confidence in 18Z TAF. Timing of return
of CIG/VSBY restrictions could be +/- 2 hours of current 11Z
forecast.

&&

.MARINE...28/735 AM.

For the Outer Waters, moderate to high confidence in current
forecast. Today through Tuesday, high confidence in winds and seas
remaining below Small Craft Advisory levels. On Wednesday, there
is a 30-50% chance of SCA level winds developing.

For the Inner Waters north of Point Sal, high confidence in
current forecast. Today through Wednesday, winds and seas will
remain below SCA levels.

For the Inner Waters south of Point Conception, high confidence in
current forecast. Today through Wednesday, winds and seas will
remain below SCA levels.

Patchy night to morning dense fog is possible this weekend off
the Central Coast.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.

&&

$$

PUBLIC...Rorke/Cohen
AVIATION...RAT
MARINE...RAT
SYNOPSIS...Lewis

weather.gov/losangeles

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