FXUS66 KLOX 261520

AFDLOX



Area Forecast Discussion

National Weather Service Los Angeles/Oxnard CA 

820 AM PDT Thu Jun 26 2025



.SYNOPSIS...25/158 PM.



Night and morning low clouds and fog will affect the coasts and 

some valleys, otherwise mostly clear skies are expected across 

the area with gusty onshore winds each afternoon. Temperatures 

will continue to turn a bit warmer tomorrow, with little change 

over the weekend into early next week.



&&



.SHORT TERM (TDY-SAT)...26/820 AM.



***UPDATE***



Latest satellite and surface observations indicated widespread

stratus/fog into the coastal valleys with clear skies elsewhere.

Current sounding data indicates marine inversion ranging in depth

from 1200 feet north of Point Conception to around 2200 feet

across the LAX Basin. No significant winds are observed.



Forecast-wise for the immediate short term, no significant issues

are expected. Current stratus blanket should dissipate by late

morning for most areas. The only exceptions may be the beaches

along the Central Coast and the Ventura south to Malibu where some

stratus may linger through the afternoon. Other than this stratus,

sunny skies will prevail through the day. Moderate onshore

gradients will generate the typical gusty southwesterly winds

across interior sections, but nothing approaching any advisory

concerns.



Overall, current forecast has good handle on the immediate short

term. So, no significant updates are expected.  



***From Previous Discussion***



The main upper level flow is well north of the area and 588 dam

hgts along with very weak upper level flow will remain over the

area for the next 3 days. At the sfc there will be weak to mdt

onshore flow in the mornings and mdt to stg onshore flow in the

afternoons.



The marine layer is currently near 1000 ft and low clouds cover

the csts and most of the vlys. The shallower marine layer has

delayed the arrival of the low clouds into the LA vlys and there

will likely be less low clouds in the San Fernando Vly today than

ydy. Most areas will clear by late morning, but many beaches will

see delayed clearing with a few beaches staying cloudy all day.

With little change in the forcing over the next few days expect

this cloud pattern to repeat itself both Fri and Sat.



Max temps jumped nicely in the non coastal areas ydy as the trof

and cooler air moved out of the area. A slight 1 to 2 degree warm

up is fcst today with a 2 to 3 degree warm up on tap for Friday.

Saturday's temps should be similar to Friday's. Still given the

similarities between all three days would not be surprised if the

warming is less than this forecast. Max temps will remain a 

little below normal across the csts/vlys and a little above normal

for the interior sections.



Look for 30 to 40 mph Sundowner Wind gusts each evening and

overnight for the southwestern portion of Santa Barbara County.

The onshore push to the east (~8mb) each afternoon will result in

gusty W-SW winds each day through Saturday across the Antelope 

Valley and foothills.



.LONG TERM (SUN-WED)...26/1211 AM.



Not much excitement planned for the extended fcst. The EC and GFS

both agree that an upper trof will develop over the east Pac and

will then very slowly move into and over the state. Hgts will

lower only slightly from 588 dam to 586 dam. At the sfc there

there will be moderate to strong onshore flow to both the east and

north.



Look for a persistent night through morning low cloud and fog

pattern each day. The clouds will cover the coasts and most of the

vlys (the Santa Clarita Vly will likely be clear). Some west

facing beaches will likely stay cloudy for most of or all of the

day. Other than the low clouds skies will be clear.



There will be relatively little day-to-day change in temperatures

across the entire area. Beaches will be in the upper 60s to low70' each day and the valleys will mostly be in the 80s, touching 

the low 90s in warmest areas. The interior will see temperatures 

in the upper 90s and approaching the low 100s, with warmest 

temperatures in the Antelope Valley, foothills, and lower 

mountain elevations. These max temps will mostly be a little below

normal for the csts/vly and generally a little above normal for

the interior.



Persistent onshore flow (~8mb onshore push to the east in the

afternoon) will bring gusty W-SW winds each afternoon and evening

to the Antelope Valley, and the typical sea breezes will be 

slightly stronger.



&&



.AVIATION...26/1232Z.



At 12Z at KLAX, the marine layer was 1700 ft deep. The top of the

inversion was at 4700 ft with a temperature of 23 C.



High confidence in TAFs for desert airfields (KPMD and KWJF).



Moderate confidence in remaining TAFs, except low confidence at

KBUR and KVNY after 06Z with a 40 percent chance that VFR conds

prevail after this time. Timing of CIG/VSBY restrictions may be 

of by 2 hours.



KLAX...Moderate confidence in TAF. VFR conds could arrive as 

early as 18Z. Any east wind component is expected to remain below

6 kt.



KBUR...Moderate confidence in TAF, except low confidence after 06Z 

with a 40 percent chance that VFR conds prevail after this time.



&&



.MARINE...26/811 AM.



Small Craft Advisory (SCA) winds are expected across the Outer

waters through Thursday night. Localized Gale force wind gusts 

are likely (70% chance) across the northern portion of PZZ670 

Thursday evening. There is a 40% chance Gales become widespread 

enough to warrant a last minute GALE warning - will continue to 

monitor trends. For PZZ676, the lull in winds this morning will

increase back to SCA levels this afternoon. 



For the inner waters along the Central Coast, SCA winds are 

expected Thursday (today) during the afternoon and evening hours.

SCA winds are not expected across the Santa Barbara Channel Today.

Although, cannot rule out localized gusts to 21 kts across far

western portions of the channel.



For the weekend, relatively benign conditions (light winds and 

calm seas) are expected across the coastal waters. 



Night to morning dense fog is possible through the weekend,

especially adjacent to the Central Coast.



&&



.LOX WATCHES/WARNINGS/ADVISORIES...

CA...NONE.

PZ...Small Craft Advisory in effect from 2 PM this afternoon to 2

      AM PDT Friday for zone 645. (See LAXMWWLOX).

     Small Craft Advisory in effect until 5 AM PDT Friday for

      zones 670-673-676. (See LAXMWWLOX).



&&



$$



PUBLIC...Rorke/Thompson

AVIATION...Munroe

MARINE...Black

SYNOPSIS...Lewis



weather.gov/losangeles



Experimental Graphical Hazardous Weather Outlook at:

https://www.weather.gov/erh/ghwo?wfo=lox

