444
FXUS66 KLOX 091047
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
247 AM PST Tue Dec 9 2025

.SYNOPSIS...08/644 PM.

A warming trend will continue this week with well above normal
temperatures through Friday, peaking Tuesday through Thursday.
Offshore flow will produce locally gusty canyon winds in the
mornings.

&&

.SHORT TERM (TDY-THU)...09/1238 AM.

Very benign and quite pleasant weather is on tap for the next
three days. A 591 MB ridge of high pressure centered 700 miles
west of Los Angeles, and will remain nearly stationary. Hgts over
Srn CA will be near 582 dam through the period. Offshore flow will
peak today with the morning gradients forecast to be near 4 mb
from the east and almost 7 mb from the north. There is, however,
zero upper level support and this will keep most wind gusts under
advisory levels. Only the Santa Lucia range in SLO county will
have consistent advisory level gusts. Still, there will be gusty
winds through and below passes and canyons in the usual Santa Ana
wind prone areas.

The offshore flow will weaken both Wed and Thu and while it will
eliminate the morning offshore winds it will diminish them.

The upper high will keep any mid and high level clouds from
reaching the area and the offshore flow will prevent any marine
layer low clouds from forming. As a result skies will be clear
through Thursday.

The well advertised warm up will continue as higher than normal
hgts (+11 dam), offshore flow and sunny skies all conspire to
bring much warmer than normal temperatures to the area. Look for 2
to 3 degrees of warming for most areas both today and Wednesday.
This will make Wednesday the warmest day with coastal areas away
from the beaches seeing highs in the upper 70s to mid 80s and the
vlys solidly in the 80s. These max temps are 12 to 18 locally 22
degrees above normal. Weaker offshore flow will allow an earlier
and stronger seabreeze on Thursday and this will cool the
csts/vlys by 3 to 6 degrees. The mtns and interior could see 1 or
2 degrees of warming.

.LONG TERM (FRI-MON)...09/243 AM.

The ridge weakens on Friday along with the offshore flow.
Hgts fall to 580 dam. The ridge and offshore flow will still be
strong enough to keep the clouds away. Max temps will fall 2 to 4
degrees (5 to 6 at some nearshore areas), but will remain well
above normal.

Weak troffing will arrive early Saturday and hgts will fall to 578
dam. Weak onshore flow will develop as well and this will likely
bring night through morning low clouds and fog (probably dense)
back to some of the coasts. Max temps will fall 1 to 2 degrees on
Saturday and a more noticeable 3 to 6 degrees on Sunday. Despite
the cool down max temps will remain 3 to 6 degrees over normals
across the csts/vlys and 6 to 12 degrees further inland.

Ridging and stronger offshore flow are slated to return next
Monday which will lead to less low clouds and hier temps.

A look at the day 8 to 15 forecast with the AI long range mdls
shows very little chc of rain during the period.

&&

.AVIATION...09/1043Z.

At 1010Z at KLAX, There was no marine layer. There was a surface-
based inversion with a top of 900 feet and a temperature of 25 C.

High confidence in TAFs.

KLAX...High confidence in TAF. Any east wind component will
be less than 7 knots.

KBUR...High confidence in VFR TAF.

&&

.MARINE...09/133 AM.

NE winds of 15 to 25 knots will affect wind prone areas at time
through Wednesday or Thursday, highest chances through Wednesday
morning. This includes portions of the Central Coast and from
Ventura to Santa Monica. These winds will likely reach low-end
Small Craft Advisory (SCA) levels for the nearshore waters of San
Luis Obispo County.

Some dense fog will form in the coastal waters by Thursday, but
low confidence on when and where.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Wind Advisory remains in effect until 10 AM PST this morning
      for zone 342. (See LAXNPWLOX).
PZ...Small Craft Advisory in effect until 10 AM PST Wednesday for
      zones 645-670-673. (See LAXMWWLOX).

&&

$$

PUBLIC...Rorke
AVIATION...Rorke
MARINE...RK
SYNOPSIS...Gomberg/Ciliberti

weather.gov/losangeles

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