Littlerock, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

917
FXUS66 KLOX 051641
AFDLOX

Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
941 AM PDT Thu Jun 5 2025

.SYNOPSIS...05/924 AM.

Night and morning low clouds and fog will continue for the next
several days for coast and valleys with slow, if any clearing at
the coast. Cooler than normal temperatures are expected through
the end of the week, then a warming trend will develop for the
weekend and through next week, especially away from the beaches.

&&

.SHORT TERM (TDY-SAT)...05/938 AM.

***UPDATE***

There remains plenty of instability across the mountains today
with weak trough over the area still. However, it should be a
little more difficult to tap into that today so chances for
afternoon storms are lower than the last few days but certainly
not zero.

Elsewhere, typical June-gloom conditions today. Marine layer
ranges from 3000 feet in LA, sloping down to 2000 feet along the
Central Coast. It will be another slow clearing day today, and
possibly not clearing at all in some coastal areas. Lots of
measurable drizzle reports this morning, the highest being around
0.05". That will be tapering off later this morning in most areas
but a good chance for another round of that tomorrow morning.

***From Previous Discussion***

There will be broad pos tilt troffing aloft along with strong
onshore flow at the sfc. The trof has lifted the marine layer to
over 3000 ft and marine layer stratus covers all of the csts/vlys
and even the cstl slopes. There is enough lift from the trof to
create a chance of drizzle esp near the foothills. The onshore
push in the afternoon will approach 8 mb and this will bring slow
clearing to the inland areas and no clearing at many of the
beaches. There is just enough instability and moisture with the
trof to bring a slight chc (20 percent) to the eastern San
Gabriels and northern VTA mtns. The steering flow is exceedingly
weak and any storms that develop will be very slow movers. Max
temps will be very similar to ydy about 3 to 6 degrees blo normal.
The strong onshore push will bring gusty winds to the Antelope
Vly as well as a stronger than normal seabreeze to the beaches.

Friday and Saturday will be fairly similar days. Srn CA will be
under dry SW flow from a high hgt (578 dam) upper low to the west
of SLO county. Hgts will rise a few dam each day and the onshore
flow will weaken slightly. Night through morning low clouds will
persist but there will be slightly less vly coverage, slightly
faster clearing away from the beaches and a few more beaches will
see the sun in the afternoon. Max temps will rise a few degrees
each day and by Saturday will approach normals.

The onshore gradients will generate the usual gusty southwesterly
winds across interior sections both Friday and Saturday. However,
outside of Lake Palmdale, expect winds to remain below advisory
levels.

.LONG TERM (SUN-WED)...05/309 AM.

The xtnd mdls are coming into better agreement and now it looks
likely that some degree of ridging will set up over the area. The
EC remains the warmest mdl, but now the GFS has trended warmer.
Look for building hgts both Sun and Mon along with a decrease in
onshore flow. In fact, there is forecast offshore flow from the
north both Monday and Tuesday morning.

The night through morning low clouds will continue but there will
be less vly intrusion due to the weaker onshore push and the
higher hgts which will squish the marine layer down below many vly
elevations.

Look for two days of warming both Sun and Mon. The coasts will
warm the least, but the vlys will reach into upper 80s. Further
inland areas like the Antelope Vly will soar up to 100 degrees.
Monday`s max temps will be 5 to 10 degrees above normal for the
non coastal areas.

The bulk of ensembles show hgts falling Tue and Wed along with an
increase in onshore flow. Look for more marine clouds and two days
of cooling.

&&

.AVIATION...05/1205Z.

At 1012Z at KLAX, the marine layer was 2800 feet deep. The top of
the inversion was at 5100 feet with a temperature of 18 C.

High confidence in VFR TAFs for KPMD and KWJF.

Moderate confidence in all remaining TAFs. Flight cat change
timing may be off by +/- 90 minutes and cig hgt by +/- 300 ft.

KLAX...Moderate confidence TAF. There is a 30 percent chc of
OVC008 conds 10Z-14Z. SCT conds could arrive anytime between 19Z
and 21Z with a 25% chance of no clearing. No significant east
wind component expected.

KBUR...Moderate confidence in TAF. Flight cat change timing may
be off by +/- 90 minutes. There is a 30 percent chc of BKN008
conds 13Z-16Z.

&&

.MARINE...05/422 AM.

High confidence in unseasonably quiet conditions through Friday
morning with no Small Craft Advisories (SCA) needed. More
seasonally typical northwest to west winds will form south of
Point Conception during the afternoon to evening hours starting
Thursday, possibly reaching SCA levels as early as Friday with
short period choppy seas likely nearshore. These winds should be
ongoing into the weekend and become more widespread with the
strongest gusts focused on the southern outer waters and western
portions of the Santa Barbara Channel. Next week will bring
increasing chances for both SCA winds and seas.

&&

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

&&

$$

PUBLIC...MW/Rorke
AVIATION...Rorke
MARINE...Phillips/Black
SYNOPSIS...MW

weather.gov/losangeles

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