622
FXUS66 KSGX 141904
AFDSGX

Area Forecast Discussion
National Weather Service San Diego CA
1204 PM PDT Thu May 14 2026

.SYNOPSIS...
Brief warming trend expected through Friday, with cooler conditions
over the weekend, and additional warming next week. Gusty
westerly winds over the mountains and into the deserts this
weekend. Night and morning low clouds and fog will be present each
day through the forecast period along the coast and into portions
of the valleys at times.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

Brief warming trend for inland locations today and Friday. High
resolution guidance is indicating a coastal eddy will be present
Friday through Sunday which should push marine layer low clouds
into the coastal basin each night morning this weekend. The eddy
may also prevent low clouds from completely clearing the coast or
push clearing to later in the afternoon. Patchy drizzle may
develop, most likely on Saturday as a trough of low pressure
passes to our north.

As the aforementioned trough digs south into the Pacific
Northwest and Great Basin, winds will increase over the mountains
and deserts. Gusty winds will develop late Saturday morning and
continue into Sunday, weakening by late Sunday night. Winds will
be strongest on the east facing mountain slopes, through passes,
and into the deserts. Peak gusts will be mostly 40-60 mph, with
local gusts to 65 mph possible in wind prone locations.
Additionally temperatures will fall a few degrees, becoming
slightly below normal for most locations.

Temperatures are expected to warm for early to mid-next week. Most
ensemble clusters indicate a ridge of high pressure in the vicinity
of the US West Coast by Monday with variations in placement. A more
easterly position (putting the ridge over California) would lead to
a warmer solution with a more westerly position (keeping the ridge
over the Eastern Pacific) would keep temperatures more moderate.

&&

.AVIATION...
141700Z...Coast/Valleys...Low clouds are currently clearing toward
the coastline with SKC expected for all land areas after 19z. Low
clouds based 1500-2000 ft MSL return to San Diego County coastal
areas 00-03z Fri and slowly spread north filling most of the coastal
basin overnight. 60-70% chance for cigs to reach KONT and 50-60% at
KSBD. Low clouds clear to the coast again 16-19z Fri.

Mountains/Deserts...Westerly wind gusts 25-40 kt increasing again
after 21Z. MOD up/downdrafts and local LLWS in lee of mountains.
Winds slowly weaken tonight into Friday morning. Otherwise, SKC
expected through the period.

&&

.MARINE...
No hazardous marine conditions are expected through Saturday
morning. Winds are expected to reach 20-30 kts over outer coastal
waters from late Saturday into early Sunday. Strongest gusts near
San Clemente Island. This will generate hazardous conditions for
small craft with choppy seas reaching 8-11 feet through Sunday
morning.

&&

.SKYWARN...
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.


&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...Wind Advisory from 11 AM Saturday to 11 PM PDT Sunday for Apple
     and Lucerne Valleys-San Bernardino County Mountains.

     Wind Advisory from 2 PM Saturday to 11 PM PDT Sunday for
     Riverside County Mountains-San Diego County Deserts-San
     Diego County Mountains-San Gorgonio Pass near Banning.

PZ...None.

&&

$$

PUBLIC...CO
AVIATION/MARINE...KW

NWS San Diego (SGX) Office