Leona Valley, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

355
FXUS66 KLOX 121101
AFDLOX

Area Forecast Discussion...UPDATED
National Weather Service Los Angeles/Oxnard CA
401 AM PDT Thu Jun 12 2025

.SYNOPSIS...12/225 AM.

Only minor day-to-day changes in the weather through the weekend.
Night through morning low clouds and fog will continue over the
coast and valleys with slow, if any, clearing at the coast. Areas
away from the coast will remain clear and much warmer than normal.

&&

.SHORT TERM (TDY-SAT)...12/242 AM.

Very typical June Gloom weather in store for the short term. The
marine layer is around 1200 ft deep and low clouds cover the csts
and vlys of LA county as well as all of the Central Coast. The
low clouds have not yet made it to Ventura county and southern
SBA county but these areas should fill in by dawn. Once again
clearing will be slow and many beaches will see no clearing. 587
dam hgts will bring warmer than normal temps to the mtns and far
interior, while the marine layer will keep vly temps near normal
and the coasts below normal.

It will be hard to tell today apart from Friday and Saturday as
there is little change in both the hgts and the sfc gradients. The
night through morning cloud cover will change little. Max temps
will continue in the mid to upper 60s at the beaches, the 70s
across the rest of the csts (with a smattering of 80 or 81 degree
readings) and the 80s in the vlys (with one or two sites at an
even 90)

Gusty Sundowner winds will occur each evening and overnight
across southwest Santa Barbara County and gusty southwest winds
will occur each afternoon across the Antelope Valley.

.LONG TERM (SUN-WED)...12/301 AM.

Xtnd mdls in good agreement on Sunday with an upper high centered
over Yuma with SW flow and 588 hgts over LA county. Little change
in the sfc gradients and it will be another day of morning low
clouds across the csts/vlys with slow clearing and no clearing for
some west facing beaches. Max temps will be very similar to
Saturday`s values.

The forecast is a little bit of a mystery for early next week as
the GFS and EC quickly diverge after disagreeing on how to handle
a trof on Monday (The GFS faster while the EC is slower and
sharper). By Tuesday the EC develops a cut off low while the GFS
builds a ridge. The ensembles are pretty split on the outcome and
the blended adjusted temps seem to reflect the average of the
warmer GFS and cooler EC. No matter the outcome the weather will
not change much and will not produce hazards - maybe a little less
morning clouds in the vlys.

&&

.AVIATION...12/1101Z.

At 07Z at KLAX, the marine layer was 1200 feet deep, with an
inversion top at 3000 ft and a temperature of 22 Celsius.

High confidence in VFR TAFs for KPMD and KWJF.

No major changes from previous TAF Package. Timing of cig/vsby
restrictions may vary +/- 2 hours and flight cats off by one or
two. There is a low chance of intermittent LIFR cigs for coastal
and valley sites.

KLAX...Moderate confidence in 12Z TAF. Flight cat changes may be
off by 2 hours. There is a 30% chance of SCT conds from 18Z Thu
through 03Z Fri. Otherwise, clearing is not expected through fcst
pd. No significant east wind component is expected.

KBUR...Moderate confidence in 12Z TAF. Timing of flight category
changes may be off by 2 hours.

&&

.MARINE...12/259 AM.

Gusty, Small Craft Advisory (SCA) level northwest winds will
persist for the Outer Waters through at least early next week.
The previously mentioned GALE watch for PZZ670/673 has been
upgraded to a GALE Warning - Thursday afternoon/eve into the
late night hours. Due to recent trends and observations, PZZ676
has also been upgraded for the same time period - strongest winds
will be confined to western portions.

There is another chance for GALES Friday evening, mostly across
the waters north of Point Sal. There is a 30-50 percent chance of
GALES again focused across the Outer Waters Sunday night through
Tuesday morning. This will likely be focused more so across the
southern Outer Waters.

SCA conditions are expected to stay confined across the western
portion of the Santa Barbara Channel during the afternoon/eve
hours each day through Friday. Chances for SCA level winds will
continue through the weekend with increasing chances into early
next week for SCA conds to reach eastern portions of SBA Channel
and western portions of PZZ655.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...Small Craft Advisory in effect until 3 AM PDT Friday for zone
      645. (See LAXMWWLOX).
     Small Craft Advisory in effect from 3 PM this afternoon to 9
      PM PDT this evening for zone 650. (See LAXMWWLOX).
     Small Craft Advisory in effect until 3 PM PDT this afternoon
      for zones 670-673-676. (See LAXMWWLOX).
     Gale Warning in effect from 3 PM this afternoon to 3 AM PDT
      Friday for zones 670-673-676. (See LAXMWWLOX).

&&

$$

PUBLIC...Rorke
AVIATION...Black
MARINE...Black
SYNOPSIS...RK

weather.gov/losangeles

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