Agoura, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

921
FXUS66 KLOX 071124
AFDLOX

Area Forecast Discussion...UPDATED
National Weather Service Los Angeles/Oxnard CA
424 AM PDT Mon Apr 7 2025

.SYNOPSIS...06/1142 PM.

Dry weather is expected across Southwest California through next
Saturday. It will be cooler today with a little morning marine
layer. A gradual warming trend will start Tuesday and continue
through Thursday. Well above normal temperatures are likely
Wednesday and Thursday with highs in the mid 80s to low 90s across
the valleys. It will turn cooler Friday and Saturday as onshore
flow increases.

&&

.SHORT TERM (TDY-WED)...07/310 AM.

An upper low moving into the PAC NW is flattening the upper high
sitting over srn CA. There is only weak onshore flow. A patch of
low clouds did develop last evening but it quickly dissipated.
Now the only low clouds are over western SBA county. Can`t rule
out some more low clouds developing esp the Long Beach area but it
is likely that skies will remain mostly clear ocnl partly cloudy
for the rest of the area. The lack of offshore flow will allow an
earlier and stronger seabreeze and most cst/vlys will cool 4 to 8
degrees. Despite the cooling most areas away from the beaches will
still have above normal temps.

The ridge begins to grow back a little on Tuesday. Offshore flow
from the north develops as well but not enough to create much in
the way of winds. A little more morning marine layer status is
forecast but would not be surprised if there is none. Most max
temps will warm 1 to 2 degrees except for the interior where the
north flow will bring in cooler interior air.

The warming will kick into gear on Wednesday. The ridge will grow
and hgts will rise to about 585 dam. Offshore flow from the north
will peak around 4 mb and the onshore push to the east will trend
towards zero. The higher hgts and delayed to non existent
seabreeze will combine with sunny skies to boost temps 6 to 12
degrees. The coastal areas closer to the shore will see temps in
the 70s with 80s lower 80s further inland. The valleys will all be
in the 80s with a sprinkling of lower 90s in the warmest spots.
These max temps will be an impressive 8 to 12 locally 15 degrees
above normal.

.LONG TERM (THU-SUN)...07/1209 AM.

Not much excitement on tap for the xtnd period. There is good mdl
agreement for Wed and Thu, but then the mdls and ensembles diverge
for the weekend fcst. Wednesday`s ridge will continue on Thursday
and will then begin to move to the east on Friday. A trof will
approach the state early Saturday. The GFS is more progressive
with the system moving it though the area by Sunday. The EC on the
other hand stalls the system to the west and actually develops a
small pop up ridge. At the sfc there is better agreement with weak
to moderate diurnal onshore pattern in the E/W direction and a
weak offshore to neutral diurnal pattern in the N/S direction.

It will be dry through the period. Marine layer clouds should be
absent on Thursday, but will increase in coverage Friday through
Sunday esp across the Central Coast and the LA cst. Asides from
the low clouds skies will be mostly clear to partly cloudy through
Sunday.

Thursday should be the warmest day for all of the area except for
the Central Coast where an earlier sea breeze will cool temps by 2
to 3 degrees. Max temps will end up 12 to 15 degrees above normal.
This very warm day will be followed by 3 days of cooling as hgts
fall and the onshore push to the west increases. There is some
uncertainty about how much cooling there will be depending if the
cooler GFS or warmer EC comes closest to verifying. Saturday looks
like it will have the biggest cool down regardless of mdl choice.
By sunday most of the csts and lower vlys will be close to or
even under normals while the interior will remain several degrees
above normal.

&&

.AVIATION...07/1122Z.

Around 1130Z at KLAX, the marine inversion top was around 1600 ft
and a temp of 18 deg C.

High confidence in TAFs for KPRB, KBUR, KVNY, KPMD, and KWJF.

Low to moderate confidence in remaining TAFS. There is a 40% chance
for VFR conds to prevail at sites with low clouds forecast and a
40% chance of LIFR/IFR conds at sites with VFR conds forecast
through 18Z. If stratus arrives, low confidence in minimum flight
cat, but LIFR conds are most likely, with local VLIFR vsbys
possible at all sites.

KLAX...Low confidence in TAF. There is a 40% chance of low clouds
through 18Z Mon and after 12Z Tue. If stratus arrives, there is a
20% chance for vsbys of 1/2SM or lower or cigs VV001 through 16Z.
High confidence in any east wind component remaining below 8 kts.

KBUR...High confidence in TAF.

&&

.MARINE...07/423 AM.

For the Outer Waters, moderate confidence in current forecast.
There is a 50%-80% chance for a combination of Small Craft
Advisory (SCA) level winds and seas through Friday night.
However, for PZZ670 (north of Point Sal), SCA level winds will
likely be most widespread starting Tuesday afternoon, but seas
have started to reach SCA levels early this morning. A lull in
the winds is possible Thursday morning for most of the Outer
Waters before ramping back up. There is also a 20% chance of
localized Gale Force wind gusts around the Northern Channel
Islands down to San Nicolas Island Tuesday during the
afternoon/evening hours, with higher chances Friday afternoon and
evening.

For the Inner Waters north of Point Sal, moderate to high
confidence in current forecast. From Tuesday afternoon through
Friday night, there is a 40%-60% chance of SCA winds during the
afternoon and evening hours each day, and a 30-40% chance of SCA
level seas near 10 feet through Wednesday morning.

For the Inner Waters south of Point Conception, moderate
confidence in current forecast. There is a 50%-70% chance of SCA
level W to NW winds in western/southern portions of the Santa
Barbara Channel during the afternoon and evening hours through
Friday. Otherwise, conds are expected to be below SCA levels thru
the period.

&&

.BEACHES...07/156 AM.

A moderate to long period west-northwest swell will bring
high surf conditions to portions of Southwest California this
evening through late Monday night. Peak surf heights will be 4 to
7 feet in Ventura County, and 7 to 11 feet along the Central
Coast. The highest surf will be on west and northwest facing
beaches.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...High Surf Advisory in effect until 3 AM PDT Tuesday for zones
      340-346-354. (See LAXCFWLOX).
PZ...Small Craft Advisory in effect from 3 PM this afternoon to 9
      PM PDT this evening for zone 645. (See LAXMWWLOX).
     Small Craft Advisory in effect from 3 PM this afternoon to 3
      AM PDT Tuesday for zone 650. (See LAXMWWLOX).
     Small Craft Advisory in effect until 3 AM PDT Wednesday for
      zones 670-673-676. (See LAXMWWLOX).

&&

$$

PUBLIC...Rorke
AVIATION...Lund
MARINE...Lewis/Lund
BEACHES...Black/Sirard
SYNOPSIS...Sirard/Smith

weather.gov/losangeles

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