339
FXUS66 KLOX 110706
AFDLOX

Area Forecast Discussion...UPDATED
National Weather Service Los Angeles/Oxnard CA
1106 PM PST Wed Dec 10 2025

.SYNOPSIS...10/951 PM.

Expecting continued warm high temperatures, with a cooling trend
Friday into the weekend as high pressure weakens. Temperatures
should trend warmer again next week. A shallow marine layer will
develop for the end of the week and could bring dense fog to the
coastal areas.

&&

.SHORT TERM (WED-SAT)...10/937 PM.

***UPDATE***

The warming trend continued today with highs flying into the 80s
for most of the coasts and coastal valleys. Interior San Luis
Obispo County saw some cooler highs, influenced by the persistent
valley fog bank to the east. Most of the interior was in the upper
60s to 70s. High pressure begins to weaken Thursday, but still
thinking temperatures will be similar to today`s values, with
about five degrees of cooling near the coasts. High temperatures
were warmed Thursday to better align with this thinking, otherwise
the forecast looks on track.

***From Previous Discussion***

Another warm day is occurring across southwestern California this
afternoon. Daytime high temperatures are well above normal, so
far, hovering close to record daily high values. Clear skies
remain prevalent across the area as a strong blocking ridge of
high pressure aloft continue to drive a warmer and drier weather
pattern.

A cooling trend should develop over the coming days as a weak
trough will replace the ridge. The ridge axis should move over the
region tonight or early Thursday morning and high pressure aloft
should start to break down. Temperatures will likely remain above
normal through the period as 500 mb heights do not drop enough. A
return of onshore flow late this week should bring a return of low
clouds and fog. A shallow marine layer depth looks likely to
develop across the coast and dense fog could become an issue as we
move forward into Friday and Saturday.

.LONG TERM (SUN-WED)...10/109 PM.

Ridging aloft will restablish early next week and likely
strengthen through the week. A warming and drying trend will
restablish early next week with temperatures likely going well
above normal again by the middle of next week. Offshore flow is
likely to redevelop again, although not as strongly as it was this
week.

&&

.AVIATION...11/0705Z.

At 0512Z at KLAX, there was no marine layer. There was a sfc based
inversion with a top of 2400 ft and a temperature of 25 C.

Moderate confidence in TAFs for KSMO and KLAX where there is a 25
percent chc of VLIFR conds 11Z-16Z.

High confidence in the remainder of the TAFs.

KLAX...Moderate confidence in TAF. There is a 25 percent chc of
1/4SM VV002 conds 11Z-16Z. Any east wind component will be less
than 7 knots.

KBUR...High confidence in VFR TAF.

&&

.MARINE...10/848 PM.

High confidence in fairly calm conditions and lowering seas
through this weekend. SCA level winds are likely to return across
the Outer Waters south of Point Conception next week.

Dense fog will likely form across portions of the coastal waters
by Thursday night or Friday morning, with highest chances south of
point conception initially. Fog will likely expand across a
majority of the coastal waters and continue through the weekend.

&&

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

&&

$$

PUBLIC...Phillips/Hall
AVIATION...Rorke
MARINE...Black/BL
SYNOPSIS...Phillips

weather.gov/losangeles

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