134 
FXUS66 KLOX 042154
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA 
154 PM PST Thu Dec 4 2025

.SYNOPSIS...04/148 PM.

Breezy Santa Ana Winds will continue to taper off through this
evening, with sub advisory northerly winds continuing into Friday
morning across mountain areas. Freezing conditions will occur 
across some interior areas Friday morning. A significant warming 
trend will begin this weekend with temperatures well above normal 
through next Thursday, peaking next Tuesday and Wednesday.

&&

.SHORT TERM (TDY-SUN)...04/153 PM.

As this round of Santa Ana Winds tapers off, a fairly quiet 
period will continue into the weekend. Another round of dense fog 
is forecast for the southern Salinas Valley for Friday morning, 
however confidence is low and there is a moderate chance the fog 
does not develop. Some sub-advisory northerly to northeasterly 
winds will develop overnight across the Western San Gabriel, Santa
Susana, and Santa Monica mountains tonight. Winds will generally 
be under 35 mph, but localized gusts to 45 mph are possible for 
windiest areas. North winds lower than 25 mph may surface between 
Malibu and western Santa Monica at times tonight then transition 
to more of a northeast direction in the early morning hours 
Friday. 

Another chilly night is on tap. A couple degrees of warming will 
occur across most interior portions of Southwest California as 
higher pressure builds in while offshore flow weakens. On the same
note coasts and coastal valleys, especially south of Point 
Conception, will cool a couple degrees as the aforementioned 
weakening offshore winds has less of downslope warming affect on 
these areas. This will likely be the last night that Frost/Freeze 
products will be needed for the forecast period. The Freeze Watch 
for the Antelope Valley, southern Salinas Valley, and Interior San
Luis Obispo County valleys has been converted to a Freeze 
Warning. The Freeze Warning is somewhat marginal for the southern 
Salinas Valley, with temperatures likely in the 30-35 degree 
range. Higher confidence in widespread freezing temperatures 
across the Antelope Valley and interior SLO County valleys tonight
with lows in the 25-32 degree range common.

High temperatures will be anything but remarkable into Saturday, 
with some minor fluctuations day to day. Weaker offshore flow and 
eventually weak onshore flow Friday and Saturday afternoon will 
lead to a few degrees of cooling at the coasts through. Highs 
across coastal valleys will yo-yo a degree or two here and there 
through Saturday, depending on how far inland the marine 
influences of the onshore makes it. Interior portions including 
the Antelope Valley will see the largest increase in temps, where 
an increase up to 10 degrees over the next couple of days will be
common.

A significant warming trend will begin Sunday as a very powerful 
(for this time of year) ridge overhead builds across the West 
Coast, sending most of the coastal valleys into the 70’s, while 
the coasts and interior valleys will top out in the mid to high 
60’s.

.LONG TERM (MON-THU)...04/153 PM.

Focus will shift to high temperatures next week as Monday through
Thursday are looking very warm for this time of year. The upper 
level ridge will be fully parked along the west coast, with the 
highest 500 mb heights just off of the Central California coast. 
Over Southwest California, 500 mb heights will likely reach the 
95th-97th percentile during this period. In addition to the 
synoptic pattern favoring a warm and dry spell, offshore winds 
will increase from the east and particularly the north Monday and 
Tuesday, with northerly flow continuing into Thursday. As of right
now, the most likely outcome would be weak to occasionally 
moderate north-northeast winds.

Temperatures will be 10 to 15 and locally 20 degrees above normal
through Thursday except for 5 to 10 degrees above normal near the
coasts. Widespread upper 70’s to at least low 80’s will be common
across coastal valleys, while coasts will likely top out in the 
low to mid 70’s. Mid 80's cannot be ruled out for warmest valley 
locations. There is considerable agreement amongst ensembles 
that the ridge will persist through the work week, but begin to 
break down into more zonal flow over the weekend. It might be a 
good idea to keep those winter coats in the closet next week.

&&

.AVIATION...04/1827Z.

At 1801Z at KLAX, there was no marine layer or inversion. 

High confidence in the current forecast, except low-to-moderate
confidence for KPRB. There is a 40% chance that conditions will 
remain MVFR or VFR tonight at KPRB. 

Periods of moderate low- level wind shear are possible through 
20Z.

KLAX...High confidence in TAF. There is a 20% chance of east 
wind component between 6-8 kt from 05Z-14Z Fri.

KBUR...High confidence in TAF.

&&

.MARINE...04/118 PM.

Across the Outer Waters, Small Craft Advisory (SCA) level winds 
are likely from Friday afternoon through late Saturday, 
especially north of the Channel Islands. There is a 50% chance 
that SCA winds may persist through Sunday and Monday. 

For the Inner Waters, there is a 30 percent chance of SCA winds 
briefly returning tonight through Friday morning for Rincon Point 
to Santa Monica and into the San Pedro Channel. Nearshore north of
Point Sal, there is a 20-40% chance of SCA winds during the 
afternoons/evenings Friday through Monday. Otherwise, winds and 
seas will likely remain below SCA levels through the weekend.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Beach Hazards Statement in effect through Saturday morning
      for zones 87-349-350-362-366. (See LAXCFWLOX).
     Wind Advisory remains in effect until 3 PM PST this afternoon
      for zones 88-354-355-358-362-369>371-374>376-378>380. (See LAXNPWLOX).
     Freeze Warning in effect from 2 AM to 8 AM PST Friday for
      zones 343-344-383. (See LAXNPWLOX).
     Beach Hazards Statement in effect through Friday morning for
      zone 354. (See LAXCFWLOX).
PZ...NONE.

&&

$$

PUBLIC...Lewis
AVIATION...Schoenfeld
MARINE...Schoenfeld
SYNOPSIS...Lewis

weather.gov/losangeles

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