East San Gabriel, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

241
FXUS66 KLOX 262001
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
101 PM PDT Tue May 26 2026

.SYNOPSIS...26/1220 PM.

A low pressure system will bring cool temperatures and a chance of
drizzle or light showers, as well as gusty winds to the beaches,
mountains, and deserts through Thursday. Winds will be the
strongest this afternoon and evening. A warming trend will begin
Friday and continue into next week.

&&

.SHORT TERM (TDY-FRI)...26/1259 PM.

A somewhat complicated and low predictability forecast through
Thursday, but likely of limited impact for most. An unseasonably
cold upper level low is dropping south into northern California
this afternoon. It will continue to slide south through Thursday,
with the low wobbling around, sometimes over the Sierra and
sometimes rotating west over the coastline. Because of the mostly
over-land trajectory it`s not surprising that the models are
indicating low PW`s with this system. However, it is quite cold,
as low as -22c at times at 500mb. At the very least we`re looking
at temperatures 10-20 degrees below normal for the next few days.
But also cannot rule out some isolated showers and possibly even
a brief afternoon thunderstorm or two. The best chance of those
would be over the higher terrain, but there`s 5-15% percent chance
one could drift over the valleys or coastal areas. But there also
will be periods of sunshine. Given the amount of cold air aloft
the typical marine inversion will be extremely weak or even non-
existent through at least Thursday so this may set up a pattern
where there`s more sunshine in the morning than the afternoon due
to the afternoon instability.

So expect a mixed bag of weather conditions the next couple days
with conditions changing rapidly at times.

The upper low is expected to move east Friday, resulting in at
least a few degrees of warming.

.LONG TERM (SAT-TUE)...26/1256 PM.

After the cold upper low exits the area, a weak baggy trough will
linger over the state into Saturday before ridging returns Sunday
into next week. Models indicate pressure gradients slowly
weakening through the period, possibly turning lightly offshore by
next Monday. At the same time heights will be rising, possibly
getting close to 590dam by Wednesday. Look for highs close to 90
or slightly higher over the warmer valleys by early next week and
mid 80s Downtown LA. Coastal temps will be dependent on the
gradients but likely still in the upper 60s to mid 70s. Overall,
near normal temperatures at the coast but 5-10 degrees above
normal inland.

&&

.AVIATION...26/1746Z.

At 1717Z at KLAX, the marine layer was 4700 ft deep. The top of
the weak inversion was at 6500 ft with a temperature of 10 C.

High confidence in VFR TAFs for KPMD and KWJF. Low to moderate
confidence in remaining sites, as cigs may bounce between VFR and
MVFR through at least 21Z Tue.

Wind speeds may be off by 5 kt (gusts off  to 10 kts) during peak
winds.

KLAX...Moderate confidence in TAF. Cigs may bounce between VFR
and BKN025 through around 21Z Tue. No significant easterly wind
component is expected.

KBUR...Moderate confidence in TAF. Cigs may bounce between VFR
and BKN015-25 through around 21Z Tue.

&&

.MARINE...26/900 AM.

For the Outer Waters, moderate to high confidence in current
forecast. Small Craft Advisory (SCA) levels are expected through
this morning. Then, a GALE WARNING goes in effect from mid to
late afternoon through late tonight. SCA conditions will then
follow through Wednesday afternoon or night. Thereafter,
conditions are likely to fall below SCA levels for a short-time,
before returning Friday night into the weekend. For the Inner
Waters north of Point Sal, today through early Wednesday, high
confidence in a combination of at least SCA level winds/seas, with
a GALE WARNING in effect this afternoon through late tonight.

For the Inner Waters south of Point Conception, SCA level W to NW
winds are expected across the Santa Barbara Channel today, around
the Channel Islands, and into Santa Monica Bay during the evening.
A GALE WARNING in in effect for the Santa Barbara Channel this
afternoon through late tonight, and local Gale Force winds may
occur nearshore Anacapa island. SCA level winds could linger into
Wednesday especially across the channel. Otherwise, expecting
conditions to fall below SCA levels thereafter.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Wind Advisory remains in effect until 10 PM PDT this evening
      for zones 340-341-346>348-354. (See LAXNPWLOX).
     High Surf Advisory in effect from 5 PM this afternoon to 11
      PM PDT Wednesday for zones 340-346. (See LAXCFWLOX).
     Wind Advisory remains in effect from 6 PM this evening to 6
      AM PDT Wednesday for zones 349-351. (See LAXNPWLOX).
     Wind Advisory remains in effect until midnight PDT tonight
      for zones 381>383. (See LAXNPWLOX).
PZ...Small Craft Advisory in effect until 3 PM PDT this afternoon
      for zones 645-650-670-673-676. (See LAXMWWLOX).
     Gale Warning in effect until 3 AM PDT Wednesday for zones
      645-650-670-673-676. (See LAXMWWLOX).
     Small Craft Advisory in effect until 3 AM PDT Wednesday for
      zone 655. (See LAXMWWLOX).

&&

$$

PUBLIC...MW
AVIATION...Schoenfeld
MARINE...DB/CC/RS
SYNOPSIS...MW

weather.gov/losangeles

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