Newhall, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

528
FXUS66 KLOX 250345
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
845 PM PDT Tue Jun 24 2025

.SYNOPSIS...24/718 PM.

Night and morning low clouds and fog will affect the coast and
some valleys through next Tuesday, otherwise mostly clear skies
are expected across the area with gusty onshore winds each
afternoon. Temperatures will turn a bit warmer through the end of
the week, with little change over the weekend into early next
week.

&&

.SHORT TERM (TUE-FRI)...24/740 PM.

***UPDATE***

Temperatures were a few degrees below normal for most areas across
Southwest California today, with valley highs in the 70s to low
80s and 80s to near 90 in the far interior. Coastal areas were
generally in the 60s to low 70s, except for some mid 50s along the
Central Coast thanks to persistent low clouds. Breezy onshore
winds increased during the afternoon hours, and are still gusting
between 25 to 35 mph through the interior passes and canyons and
into the Antelope Valley.

The only issue of note for the overnight period is the extent of
low clouds and fog. The general model consensus is for low clouds
to spread over the coasts and coastal valleys, excepting the
western Santa Barbara South Coast. Clearing may be delayed for the
beaches, especially along the Central Coast on Wednesday.

***From Previous Discussion***

The marine layer pattern with varying amounts of night and
morning low clouds and some fog can be expected for the coast into
some adjacent vlys tonight through Fri. The marine inversion
should lower some by later in the week as the upper ridging
develops, so the inland extent of the low clouds will diminish
some starting early Thu. Otherwise and elsewhere, mostly clear
skies will prevail thru Fri. Typical diurnal winds can be
expected during the period, with weaker to near calm winds for the
night and morning hours followed by breezy to gusty W-SW
afternoon winds each afternoon and early evening.

Temps are forecast to have a gradual warming trend each day Wed
thru Fri. It will still be several degrees below normal on Wed for
many areas then be from near normal to slightly above normal Thu
and Fri. Highs by Thu and Fri should be from the upper 60s and 70s
along the coast to the 80s to mid 90s over the vlys and lower
mtns, except upper 90s to around 100 in the Antelope Vly.
AVDAFDLOX
.LONG TERM (SAT-TUE)...24/136 PM.

The GFS and EC are in generally good agreement in the extended
period. The upper level ridging will gradually move E on Sat,
with an upper level trof developing just off the CA coast. A weak
upper level low will develop at the base of the upper trof off the
Central Coast on Sun then drift N to near the Bay Area for Mon.
The upper level trof will move inland over central and SW CA on
Tue.

Little day-to-day changes are expected across the forecast area
thru the extended period. Marine layer clouds should affect much
of the coast and into a few of the adjacent vlys each night and
morning with clearing back to or off the coast for each afternoon.
Otherwise, mostly clear skies will prevail thru the period.
Decent onshore pressure gradients should bring breezy to gusty
afternoon SW-W winds to many areas, likely strongest in the
Antelope Vly. Temps should be generally from slightly below normal
to slightly above normal, with the warmest temps over the
interior vlys and deserts.

&&

.AVIATION...25/0343Z.

At 00Z at KLAX, the marine layer was 1400 ft deep. The top of the
inversion was at 4100 ft with a temperature of 18 C.

High confidence in TAFs for KPMD and KWJF.

Moderate to low confidence in TAFs for KPRB, KSBP, KBUR, and
KVNY. There is a chance for no return of low clouds tonight at
KSBP (30%), KBUR/KVNY (20%). If cigs return, minimum flight cat
may be one cat lower. KPRB has a low chance for brief cigs around
13-15Z.

Moderate confidence in remaining coastal sites. Lower confidence
in arrival timing (may be off by 2 hours) and minimum flight cat,
which may may be off by one cat. A general lowering trend for
cigs and vsbys is expected as higher pressure will shrink the
marine layer depth overnight.

KLAX...Moderate confidence in TAF. Clearing times may be off by
1-2 hours. Any east wind component is expected to remain less
than 6 kt.

KBUR...Low confidence in TAF. There is a 20% chance for no low
clouds to return tonight. However, if low clouds return,
OVC003-004 cigs with vsbys 1-2SM are possible (20% chance).

&&

.MARINE...24/138 PM.

There is a moderate to high chance for SCA level winds (50-80%
chance) across portions of the Outer Waters from this afternoon
through late Thursday, with highest chances in the afternoon and
evening hours Wednesday and Thursday, with lulls likely each
morning. Moderate chances for SCA level winds in the Inner Waters
along the Central Coast will will exist Wednesday and Thursday
afternoon and evening. The western portion of the Santa Barbara
Channel has a moderate chance for SCA level winds through
Thursday in the afternoon through late evening hours.

Elsewhere and otherwise, relatively benign conditions are
expected through the weekend.

Patchy dense fog is possible off of the Central Coast during the
evening to morning hours through at least Wednesday morning.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Beach Hazards Statement in effect through late Wednesday
      night for zones 349-350-354-362-366. (See LAXCFWLOX).
PZ...Small Craft Advisory in effect from noon to 9 PM PDT
      Wednesday for zone 645. (See LAXMWWLOX).
     Small Craft Advisory in effect until 3 AM PDT Wednesday for
      zone 650. (See LAXMWWLOX).
     Small Craft Advisory in effect until 3 AM PDT Friday for
      zones 670-673. (See LAXMWWLOX).
     Small Craft Advisory in effect until 3 AM PDT Thursday for
      zone 676. (See LAXMWWLOX).

&&

$$

PUBLIC...Sirard/Ciliberti
AVIATION...Phillips
MARINE...Lewis
SYNOPSIS...Sirard/Ciliberti

weather.gov/losangeles

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