482
FXUS66 KLOX 081147
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
347 AM PST Mon Dec 8 2025

.SYNOPSIS...08/231 AM.

Benign weather will continue through the week with only a chance
of morning low clouds and fog along the Los Angeles coast this
morning. A warming trend will continue this week with well above
normal temperatures through next Friday, peaking Tuesday through
Thursday. Offshore flow will produce local canyon winds in the
mornings.

&&

.SHORT TERM (TDY-WED)...08/232 AM.

Srn CA will sit under the east side of east pac ridge through the
short term with hgts near 584 dam (13 dam higher than normal). At
the sfc there will be offshore flow form both the N and S. The
offshore will be near 6 mb offshore from the N and near 3 mb from
the E. There is no upper level support so while there will be
gusty canyon winds each morning they will be mostly under
advisory levels. The one exception will be the Santa Lucia range
in SLO county where advisory level winds will occur this morning
and Tuesday morning. The winds will likely reach advisory levels
across coastal SLO county below the favored passes and canyons.

Some low clouds are likely this morning across the nearshore areas
from Long Beach to KLAX. Dense fog will likely accompany any low
clouds that do form. Skies, otherwise, will be mostly clear
through short term period with the upper high and offshore flow
preventing any cloudiness.

Max temps will be the main issue for the three day period (and Thu
and Fri as well). Offshore flow, hier than normal hgts and sunny
skies will all combine to bring most areas 3 to 6 degrees of
warming today, 2 to 4 degrees on Tue and 1 to 3 degrees on
Wednesday. Today there will be mostly 70s on the csts and upper
70s to mid 80s in the vlys. By Wednesday expect mid 70s to lower
80s across the csts and 80s in the vlys. While these max temps are
impressively 10 to 15 locally 18 degrees above normal they are not
at record levels. Low temps will be mixed bag with the dry air,
clear skies and long nights combining to bring below normal lows
to wind sheltered areas. Windier areas, however, will see slightly
above normal overnight lows.

.LONG TERM (THU-SUN)...08/231 AM.

Medium range mdls and ensembles have the same general idea about
the xtnd fcst and their differences really should not affect the
weather`s outcome much at all.

The ridge will begin to weaken on Thu and this trend will continue
into Fri. More importantly for the forecast for the csts and vlys
the offshore flow will weaken each day and, in fact, will turn
onshore to the east on Friday. Look for two days of slight cooling
across the csts/vlys (1 to 3 degrees each day).

The anticyclonic flow turns cyclonic on Saturday. There will be
onshore flow to the east through the day and only weak offshore
flow from the north. This should bring a return of the coastal
marine layer cloud pattern. It will also bring a noticeable cool
down or 3 to 6 degrees. The cooling trend is forecast to continue
Sunday with another 3 to 5 degrees of cooling across the board.
Despite this cooling max temps will remain above normal esp away
from the coasts.

&&

.AVIATION...08/1025Z.

Around 0850Z, there was no marine layer depth at KLAX. There was a
surface-based inversion up to around 2200 feet with a temperature
near 21 degrees Celsius.

High confidence in the current forecast for coastal terminals
north of Point Conception, and valley and desert terminals south
of Point Conception. Moderate confidence in the current forecast
for coastal terminals south of Point Conception and KPRB. There
is a moderate chance of VLIFR to LIFR conditions at coastal
terminals south of Point Conception and KPRB through 16Z. There
is a moderate chance of VLIFR to LIFR conditions at KPRB after
10Z Tuesday.

KLAX...There is a 40 percent chance of VLIFR to LIFR conditions
through 16Z. Any easterly winds will remain less than 7 knots.

KBUR...VFR conditions are expected through the period. No wind
impacts are expected at this time.

&&

.MARINE...08/225 AM.

Moderate confidence in the current forecast. Slightly higher
confidence exists in the seas forecast relative to winds.

For the waters southwest through northwest of the Channel Islands
beyond 10 NM offshore of the Central Coast, there is a high to
likely (40 to 60 percent) chance of low-end Small Craft Advisory
(SCA) conditions through early Wednesday, then there is a
moderate-to-high (30 to 50 percent) chance for the remainder of
the week. The highest chances will be across the western portions
during the afternoon and evening hours.

Inside the southern California bight and for the nearshore waters
along the Central Coast out to 10 NM offshore, there is a 40 to
60 percent chance of northeast SCA level wind gusts from Ventura
to Santa Monica and a 50 to 70 percent chance of northeast SCA
winds from near Pismo Beach to Point Piedras Blancas each night
and morning through Tuesday. There is a low-to-moderate (20 to 40
percent) chance for both areas for Tuesday night and into
Wednesday morning. Otherwise, winds and seas should remain below
SCA levels.

There is a moderate chance of dense fog over the coastal waters
this morning, highest for the western portion beyond 30 NM
offshore of the Central Coast.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Wind Advisory remains in effect until 10 AM PST this morning
      for zones 340-341. (See LAXNPWLOX).
     Wind Advisory remains in effect until 10 AM PST Tuesday for
      zone 342. (See LAXNPWLOX).
PZ...Small Craft Advisory in effect until 11 AM PST Tuesday for
      zone 645. (See LAXMWWLOX).
     Small Craft Advisory in effect until 3 AM PST Wednesday for
      zones 670-673. (See LAXMWWLOX).

&&

$$

PUBLIC...Rorke
AVIATION...Hall
MARINE...Hall
SYNOPSIS...Gomberg

weather.gov/losangeles

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