Duarte Weather

548
FXUS66 KLOX 020610
AFDLOX

Area Forecast Discussion...UPDATED
National Weather Service Los Angeles/Oxnard CA
1110 PM PDT Mon Jun 1 2026

.SYNOPSIS...31/1153 PM.

Warm and dry conditions can be expected through most of this
week. There will be some coastal low clouds and fog at times, but
otherwise skies will remain mostly clear. There will be gusty
onshore winds through most of the week.

&&

.SHORT TERM (MON-THU)...01/905 PM.

***UPDATE***

High temperatures remained cool near the coasts today, and warmed
into the 80s and 90s away for the valleys and interior areas.
Marine layer clouds and fog will return each night, impacting
much of the coasts and some valley locations. This will limit
warming near the coasts, with interior areas trending a bit cooler
Tuesday, and warmer Wednesday. Highs were cooled about 3-5 degrees in
areas where marine layer clouds are expected Thursday morning.
Otherwise the forecast looks on track.

***From Previous Discussion***

June arrives with its standard unexciting weather. At the upper
levels there will be weak saggy broad troffing. Hgts will be near
586 dam which is very close to normal. Onshore flow will prevail
through the period strongest to the east and in the afternoons.

Tuesday night and Wednesday will have a similar low cloud
pattern. With the afternoon onshore push near 8 mb in the
afternoon it is likely that some beaches will not clear.

The strong W to E pressure gradient will drive stronger than
normal sea breezes as well as gusty winds in the Antelope Vly.
There will be a little north push in the mtns Tuesday night but
any winds will be under advisory criteria. Winds will likely be a
little stronger into Wednesday afternoon to evening with a 30-50
percent chance of advisory level winds for Southwest Santa Barbara
County and interior mountains near the I-5 corridor.

Max temps will fall across the csts and vlys Tuesday as the
onshore flow increases. Tuesday`s cooling will bring most
csts/vly max temps to a few degrees blo normal. Mdls showing some
warming on Wednesday due to the north flow, but this may well not
work out depending on how strong the eddy and marine layer is.

A weak ridge will nose in from the west Thu with a few degrees of
warming possible for the interior. If an eddy spins up from the
northwest flow from the night before coastal to coastal valleys
will likely see little change or even slight cooling into
Thursday.

.LONG TERM (FRI-MON)...01/124 PM.

Hgts will fall over the weekend as a trof originating from a
decent sized upper low that will move into the PACNW. There will
be mdt to strong onshore flow each day, peaking Friday.

Night through morning low clouds and fog will continue for all 4
days. Some beaches may not clear until later in the afternoon on
Thu, Sat and Sun. Friday looks to be a day of June Gloom due to
the strong onshore flow both to the N and E. It is likely that
much of the nearshore area will stay cloudy and cool.

The lowering hgts and strong onshore flow will lead to 3 days of
cooling Fri-Sun. Weekend temps will mostly be in the 70s across
the csts/vlys with upper 60s at the beaches and lower 80s in the
warmest vly locations. These max temps are mostly 2 to 4 degrees
blo normal.

&&

.AVIATION...02/0609Z.

At 0517Z at KLAX, the marine layer was 1200 feet deep. The
inversion top was near 4200 feet with a temperature of 19 C.

High confidence in KPMD, KWJF, and KPRB.

Moderate confidence in other TAFs. Cig hgt could be off by +/- 300
ft. VFR transition could be off by +/- 90 min.

KLAX...Moderate confidence in TAF. There is a 30 percent chc of
OVC008 09Z-15Z. There is a 25 percent chc of VFR conds arriving at
20Z. Any east wind component will remain below 6 kts.

KBUR...Moderate confidence in TAF. There is a 30 percent chc of
OVC004 09Z-15Z. There is a 25 percent chc of VFR conds arriving
at 18Z.

&&

.MARINE...01/919 PM.

For the Outer Waters from the Central Coast to San Nicolas
Island, moderate to high confidence in current forecast.
Generally expecting conditions to stay below hazardous levels
through this morning. SCA winds are expected to return this
afternoon through Thursday, with a 60-80% chance of Gale force
winds peaking Wednesday afternoon through Thursday morning. There
is a 30-40% chance that Gales may linger Thursday afternoon
through Saturday, otherwise SCA winds will persist through the
forecast period. Seas are expected to build to 10 to 12 feet
Wednesday night and will likely persist through the weekend.

For the Inner Waters north of Point Sal, moderate to high
confidence in current forecast. After a relative lull today,
winds will increase to  SCA levels Wednesday night through
Thursday night, with a 30-50% chance of Gales Wednesday night
into Thursday morning. Otherwise, SCA winds are likely to persist
through Thursday night. After decreasing some Friday, winds may
increase to SCA levels again Saturday.

For the Inner Waters south of Point Conception, moderate to high
confidence in current forecast. There is a 50-70 percent chance
of SCA winds today in the late afternoon and evening and again
during the same time frame Wednesday and Thursday across the
western portion of the Santa Barbara Channel.

&&

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

&&

$$

PUBLIC...Phillips/Munroe
AVIATION...Rorke
MARINE...RM/CC/DB
SYNOPSIS...RAT/Sirard

weather.gov/losangeles

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

NWS LOX Office Area Forecast Discussion