Garden Grove, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

164
FXUS66 KLOX 300958
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
258 AM PDT Tue Jun 30 2026

.SYNOPSIS...30/230 AM.

Night through morning low clouds will continue across the coasts
and valleys. Some very light drizzle is possible each morning.
Temperatures will remain well below normal through the middle of
the week. Temperatures will then begin to warm by Thursday, with
many valley locations warming into the 90s again by early next
week.

&&

.SHORT TERM (TDY-THU)...30/231 AM.

Cyclonic flow will continue over the state as a series of upper
lows/trofs moves through the PACNW. At the same time moderate to
strong onshore flow both to the N and E will continue through the
3 day period. Hgts will slowly rise through the period from 578
dam to 582 dam.

The marine layer is about 2500 ft deep as it has been lifted by
the onshore flow and and cyclonic flow aloft. This deep marine
layer has brought low clouds to most of the csts and vlys. There
is some northerly flow across SBA county and this will keep
portions of the SBA south coast clear. Some local drizzle is
possible each morning esp near the foothills which will add a
little extra lift. The marine layer is deep enough that there will
be some reverse clearing as the stratus in the vlys bubbles up
into a stratacu deck.

Coastal temps will not change much through the period but the
interior temps will rise due to the increasing hgts. Max temps
will remain blo normal everywhere through the period with cstl
sites 3 to 6 degrees blo normal and the rest of the area around 5
to 10 degrees.

The strong onshore flow will produce near advisory level westerly
wind gusts each afternoon across the western Antelope Vly and its
foothills.

.LONG TERM (FRI-MON)...30/230 AM.

Friday will again start out gloomy with low clouds covering most
of the csts and vlys. This due to the continued strong onshore
flow and weak troffing aloft. The gradients relax just a skosh
which should bring slightly better/faster clearing. At the upper
levels hgts will rise about 4 dam as the upper trof weakens. Less
onshore flow, earlier clearing and rising hgts will all mix
together to bring 2 to 3 degrees of warming to most areas. The
interior of SLO county will be the exception as warmer interior
air will bring as much as 7 degrees of warming to that area.

Continued warming is on tap for Saturday as the troffing
disappearsand an ill-defined weak flow pattern sets up with hgts
up to 590 dam. Still quite a bit of onshore flow so there will be
plenty of morning low clouds. Look for 1 to 3 degrees of warming
across the csts and vlys, while the interior will warm 3 to 5
degrees.

Sunday will be very similar to Saturday both with respect to the
synoptic pattern and the sensible weather.

On Monday Srn CA will be in between a weak ridge to the east and
weak troffing to the NW. Hgts will remain near 590 dam. While
there will still be mdt-stg onshore flow to the east the onshore
push to north in the morning will be much weaker and possibly
weakly offshore. This should reduce the amount of morning low
clouds. Max temps may warm a degree or two as a result.

The onshore push to the east will generate gusty just under
advisory level winds each afternoon.

&&

.AVIATION...30/0957Z.

At 0835Z at KLAX, the marine layer was 2500 ft deep. The top of
the inversion was 6000 ft with a temperature of 13 C.

High confidence in VFR TAFs for KPMD and KWJF.

There is a 20% chance for brief IFR cigs at KPRB. Moderate
confidence for all other TAFs. VFR conds may arrive up to 90
minutes later than fcst. Cig hgts could be off by +/- 300 ft.

KLAX...Moderate confidence in TAF. VFR conds could arrive as late
at 2130Z with a 30 percent chc of SCT conds. There is a 30 percent
chc of BKN015 cigs 10Z-16Z. High confidence in any easterly wind
staying under 6 knots.

KBUR...Moderate confidence in TAF. VFR conds could arrive as late
as 20Z.

&&

.MARINE...30/257 AM.

Small Craft Advisory (SCA) level winds/seas over the outer waters
have ended. High confidence in conditions diminishing on Tuesday.
SCA wind chances also decrease through the coming week, with a
30% chance of SCA gusts over the far western PZZ670.

Other than a 30% chance of SCA winds over the western Santa
Barbara Channel each afternoon and evening through Tuesday, high
confidence in conditions staying under SCA for the rest of the
waters.

All waters will see short-period choppy seas through the period.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...Small Craft Advisory in effect until 3 AM PDT early this
      morning for zones 670-673-676. (See LAXMWWLOX).

&&

$$

PUBLIC...Rorke
AVIATION...Rorke
MARINE...CC
SYNOPSIS...Cropp

weather.gov/losangeles

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