Lawndale, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

867
FXUS66 KLOX 072252
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
352 PM PDT Wed May 7 2025

.SYNOPSIS...07/131 PM.

High pressure aloft will push in over California through Sunday,
resulting in much warmer conditions, peaking Friday and Saturday.
Some coastal areas will remain mild under a shrinking marine
layer. Much cooler conditions are expected next week with low
clouds and fog pushing back into the valleys.

&&

.SHORT TERM (TDY-SAT)...07/148 PM.

Just some minor touch ups to the forecast this afternoon. High
pressure is building over the region and will peak Friday and
Saturday when warmer valleys will be pushing 100 and inland
coastal areas more than 5 miles from the beach will be in the low
to mid 80s. No heat advisories yet but if everything remains on
track tonight and tomorrow will certainly be taking a close look
at that and coordinating with surrounding offices. There is some
uncertainty with the overnight lows which does factor into the
heat risk calculation. The most likely areas would in and around
the San Fernando and Santa Clarita valleys, the eastern Ventura
valleys, and possibly parts of interior SLO County. Current high
temperature forecasts are very close to daily records for these
areas.

The marine layer is rapidly shrinking today and for the most part
should not get into the valleys except for the San Gabriel and
eastern San Fernando valleys. And even less coverage Friday and
Saturday morning with a strong possibility of dense fog near the
coast that could cause some airport delays.

.LONG TERM (SUN-WED)...07/151 PM.

Vigorous cooling is on tap for the Sunday to Tuesday time frame.
An upper low will spin out of the PACNW and into Nrn CA. Hgts will
fall through the period reaching 568 dam on Tuesday. Just as
important onshore flow will increase through the period perhaps
reaching 9 mb onshore to the east on Monday afternoon. Look for a
steadily increasing marine layer cloud pattern with slow to no
clearing returning to many coastal sites. Look for 4 to 8 degrees
of cooling for most areas on Sunday, then 8 to 12 degrees on
Tuesday (except the cst which will cool 2 to 4 degrees. Finally,
on Tuesday and additional 3 to 6 degrees of cooling is forecast.
By Tuesday max temps will almost all be in the 60s across the
csts/vlys or 4 to 8 degrees blo normal.

The strong onshore flow will likely produce gusty near advisory
level wind gusts in the afternoons and early evenings.

&&

.AVIATION...07/2251Z.

At 2230Z at KLAX, the marine inversion was based around 1600 feet.
The top of the inversion was 2800 feet with a temperature of
16 degrees Celsius.

Overall for 00Z TAF package, high confidence in desert/valley TAFs
and low/moderate confidence in coastal TAFs. Lower confidence for
coastal sites due to uncertainties of the marine layer stratus.
For KSBP/KSBA, there is a 30% chance of IFR/LIFR conditions
08Z-16Z. For other coastal sites, there is a 30% chance that
IFR/LIFR conditions do not develop overnight.

KLAX...Moderate confidence in 00Z TAF. Timing of return of IFR
conditions could be +/- 3 hours of current 10Z forecast. There is
a 30% chance that conditions will remain VFR overnight. No
significant easterly wind component is expected.

KBUR...High confidence in 00Z TAF.

&&

.MARINE...07/1200 PM.

Conditions will remain relatively benign through Thursday morning,
with the exception of local gusts reaching Small Craft Advisory
(SCA) levels in the Inner Waters south of Point Conception this
afternoon and evening, including the Santa Barbara Channel and
the waters around Malibu and through the San Pedro Channel.
There is a 20 percent chance that these winds become widespread
and strong enough for a SCA.

From Thursday afternoon through the weekend, moderate to high
confidence for widespread SCA level winds across the Outer Waters.
Highest confidence in the northern Outer Waters reaching SCA
levels Thursday and Friday, then SCA winds becoming more
widespread over the weekend. Winds may increase to SCA levels in
the Inner Waters along the Central Coast and the western half of
the Santa Barbara Channel, especially over the weekend, but
confidence is low at this point. In the northern Outer Waters,
seas will begin to build near SCA levels this weekend.

Dense fog focused in the night to morning hours may become more
common Wednesday or Thursday through the weekend.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.

&&

$$

PUBLIC...MW/Rorke
AVIATION...RAT
MARINE...Lewis/Munroe
SYNOPSIS...MW

weather.gov/losangeles

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