036
FXUS66 KLOX 021049
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
249 AM PST Sun Nov 2 2025

.SYNOPSIS...01/808 PM.

Temperatures will rise slightly through Sunday, before a cooling
trend begins Monday. Skies will be mostly clear through Tuesday
except for night through morning low clouds and fog across the
coasts and lower valleys. Dry conditions are expected until
Wednesday, when there could be rain along the Central Coast.

&&

.SHORT TERM (TDY-TUE)...02/158 AM.

3 days of benign weather on tap for Srn CA.

Today a weak and dry upper low will pass over the area. It will do
little except to deepen the marine layer some. Currently the
marine layer ranges from 500 ft over the Central Coast to 1000 ft
over AL/VTA counties. Onshore flow to the east is very weak and
there is weak offshore flow from the north. This has slowed the
advance of the marine layer into the vlys. The lower marine layer
depth across the Central Coast has produced areas of dense fog and
a dense fog advisory is in effect there. There marine layer
clouds will be slow to clear but by afternoon all areas will be
sunny. The lower hgts will bring 2 to 4 degrees of cooling to most
areas.

There will be another round of low clouds tonight but the deeper
marine layer will be less dense fog, but also more clouds in the
vlys.

Dry SW flow sets up Monday and will persist into Tuesday. Onshore
flow will slowly increase each day and hgts will slowly fall.
Skies will be mostly clear except for the night through morning
low clouds and fog across the csts and some of the vlys. Max temps
will cool 2 to 4 degrees Monday and then an additional 1 to 2
degrees on Tuesday. By Tuesday the csts/vlys will have blo normal
max temps while the mtns and interior will be 3 to 6 degrees above
normal.

.LONG TERM (WED-SAT)...02/105 AM.

No big change to the Wednesday forecast. The southern end of a
large trof originating in the Gulf of Alaska will sweep through
the state. The tail end of an embedded cold front will pass
through SLO and western SBA counties. It will bring a 80 percent
chc of rain to NW SLO Co and then taper down to about a 20 percent
chance in SBA Co. Rainfall amounts will be under a quarter inch
and mostly under a tenth with the usual exception of the extreme
NW tip of SLO county which will likely see more. It will be
cloudy across SLO And SBA counties but VTA and LA counties will
have partly to mostly cloudy conditions. Lowering hgts, better
onshore flow and the clouds will all combine and lower temps by 2
to 4 degrees making it the coolest of the next 7. The csts and
vlys will end up with highs only in the upper 60s and 70s.

Gusty north winds set up behind the front. The SBA south coast and
the I-5 corridor will see the most winds but right now it does not
look like the gusts will reach advisory levels.

Both Thu and Fri should be mostly clear days with a ridge building
in and the gusty winds eliminating the threat of low clouds. Most
coastal areas will warm 3 to 5 degrees Thursday while the interior
cool a little more due to residual cool air. All areas will see 3
to 6 degrees of warming on Friday as the increased hgts and
offshore flow combine. Most areas will see max temps 2 to 4
degrees above normal on Friday with plenty of 80s in the vlys.

The offshore flow reverses on Saturday and the marine clouds will
likely make a coastal comeback. Stronger ridging will warm the
vlys, mtns and interior while the onshore flow will bring cooling
to the coasts.

&&

.AVIATION...02/0539Z.

At 0445Z at KLAX, the marine layer was 1000 feet deep. The top of
the inversion was at 3000 feet with a temperature of 25 degrees
Celsius.

High confidence in KPRB, KWJF and KPMD.

For the remainder of TAFs: moderate confidence. Timing of flight
category changes could be +/- 2 hours of current forecasts.

KLAX...Moderate confidence in TAF. VFR conds may last until 21Z.
IFR conds may return as early as 23Z. There is a 20 percent chc of
1/2SM FG VV002 conds 12Z-15Z. No significant easterly wind
component is expected.

KBUR...Moderate confidence in TAF. There is a 30% chance of no
low clouds.

&&

.MARINE...02/248 AM.

Areas of dense fog with visibility under one mile will be a
concern through at least the weekend, especially during the night
through morning hours.

High confidence in the Small Craft Advisory (SCA) level winds or
seas (10+ feet) off the Central Coast through tonight. There is a
30% chance that seas will remain at SCA levels over the northern
outer waters (PZZ670) through Monday morning. Seas will likely
lower significantly Monday and Tuesday, before building again for
midweek. Large tides (7+ feet) and swells (westerly 8-15 feet)
will bring a moderate risk of breaking waves at the Morro Bay and
Ventura Harbor Entrances Thursday and Friday, as well as moderate
coastal flooding.

Southeast winds will be prevalent south of Point Conception each
morning through at least the weekend.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Dense Fog Advisory in effect until 9 AM PST this morning for
      zones 340-341-346>348. (See LAXNPWLOX).
     High Surf Advisory in effect until 3 AM PST Tuesday for zones
      340-346. (See LAXCFWLOX).
PZ...Small Craft Advisory in effect until 3 AM PST Monday for
      zones 645-670-673-676. (See LAXMWWLOX).

&&

$$

PUBLIC...Rorke
AVIATION...Rorke
MARINE...RK/KL/CC
SYNOPSIS...jld/cc

weather.gov/losangeles

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