Duarte Weather

980
FXUS66 KLOX 302336
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
436 PM PDT Tue Jun 30 2026

.SYNOPSIS...30/111 PM.

Onshore flow will continue to bring low clouds to the coasts and
coastal valleys each night and morning. Some very light drizzle
is possible each morning. Temperatures will remain well below
normal for the next couple of days before a warming trend takes
hold on Thursday. Many valley locations will warm into the 90s by
early next week.

&&

.SHORT TERM (TDY-FRI)...30/114 PM.

Daytime temperatures will remain very stable through
Wednesday/Thursday with widespread highs ranging the 70s with 80s
in the valleys. Persistent onshore flow and increased low clouds
over the next couple of days will further inhibit daytime heating
with below normal temperatures in the forecast for the next
several days. Upper-level heights will begin to rise on Thursday
and temperatures will begin to gradually warm by a few degrees
each day. A series of shortwaves working through the upper level
flow through the weekend will bring breezy winds to the Antelope
Valley/Foothills each evening. No wind highlights are planned as
winds will largely remain sub-Advisory. The National Blend max
gusts for this week are below 35 mph in the San Luis Obispo Valley
and below 45 mph across the Antelope Valley and Foothills.

.LONG TERM (SAT-TUE)...30/111 PM.

Temperatures will continue warming to within a few degrees on
either side of normal on Saturday. While 90 degree highs won`t be
widespread, probabilities of reaching 90 degrees in our valleys
will increase through the middle of next week. The National Blend
indicates over a 90% chance of 90 plus degrees across the Antelope
Valley on the 4th while 50% to 80% chance across the San Luis
Obispo Valley and localized valleys elsewhere. Ensembles indicate
a pattern change during the weekend, with a ridge of high
pressure to the southwest and a PacNW low to the northwest.
Ensembles are still trying to sort out the upper level evolution
early next week, now showing the ridge being shunted further east
as heights fall and the trough takes over our weather pattern.
Temperatures further northwest will remain fairly stable late
weekend into the first part of next week while areas further east,
like the Antelope Valley and Foothills, will continue to warm
under the influence of the ridge.

&&

.AVIATION...30/2316Z.

At 2144Z at KLAX, there were multiple cloud decks at 1500 ft and
3800 ft, with an inversion at 6000 ft with a temperature of 16 C.

High confidence in VFR TAFs for KPMD and KWJF.

Moderate confidence in remaining TAFs, with arrival and clearing
times of low clouds +/- 2 hours of forecast. 20% chance for KPRB
to remain IFR or higher. 20% chance for brief IFR cigs at
KSBP/KSMX tonight, Otherwise, high confidence in MVFR to VFR
conditions for all other terminals. Gusty onshore winds will once
again become common around 01/20Z.

KLAX...Moderate confidence in TAF. MVFR cigs may arrive as early
as 03Z. Transition to VFR could be 19Z-23Z, with VFR cigs likely.
There is a 30 percent chc of BKN015 cigs 10Z-16Z. High confidence
in any easterly wind staying under 6 knots.

KBUR...Moderate confidence in TAF. MVFR cigs may arrive as early
as 03Z. Transition to VFR could be 18Z-23Z, lower confidence based
on clearing trends the last couple of days.

&&

.MARINE...30/946 AM.

There is a 20-30% chance of Small Craft Advisory (SCA) conditions
in the afternoon to night for the outer waters through Thursday
with 60-70% chance Friday into the weekend.

Other than a 20-30% chance of SCA winds over the western Santa
Barbara Channel each afternoon and evening today and again
Thursday into the weekend.

High confidence in conditions staying under SCA for the rest of
the waters through at least Thursday.

All waters will see short-period choppy seas through the period.

&&

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

&&

$$

PUBLIC...Cropp
AVIATION...Lewis
MARINE...RM/CC
SYNOPSIS...Cropp

weather.gov/losangeles

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

NWS LOX Office Area Forecast Discussion