6800ft. 
449
FXUS66 KSGX 130445
AFDSGX
Area Forecast Discussion
National Weather Service San Diego CA
945 PM PDT Fri Jun 12 2026
.SYNOPSIS...
High temperatures for the next week will generally range from a
few degrees above average near the coast to 5 to 10 degrees above
average for the mountains and deserts with some slight day to day
differences. Moderate HeatRisk will continue for the deserts
through next Wednesday. Marine layer low clouds will spread into
portions of the western valleys during the nights and early
mornings, with day-to-day variations. There is a slight chance of
showers over the mountains this afternoon.
&&
.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
This evening...As we lose some of the mid-level moisture, the
marine layer will reorganize and we can expect to see increased
low cloud coverage in the coastal areas and western valleys by
early Sat morning.
The weak upper level low pressure system continues to drift
slowly westward away from the coast of northern and central Baja
so we will remain sandwiched between the high pressure centered
off the coast of central CA and the high pressure centered over
western TX. High temperatures for the coast and valleys will cool
by a few degrees for the weekend while the deserts warm by a few
degrees. High temperatures on Sunday will range from a few degrees
above average for the coast and valleys to 4 to 8 degrees above
average for the deserts. Moderate HeatRisk will continue for the
deserts through the weekend into the middle of next week. Several
records for warmest daily minimum temperatures are likely to be
tied or broken each day through Sunday, mainly for the coast and
mountains, though there could also be a few for the deserts and
inland valleys.
Through the middle of next week...There will be slight warming
trend through Tuesday, then cooling of a few degrees per day for
the second half of next week as a low pressure system moves inland
to our north. High temperatures on Tuesday will range from near
to a few degrees above average in the coastal areas to 5 to 10
degrees above average for the mountains and deserts. With the
cooling late next week, high temperatures on Thursday will still
be a few degrees above average for the deserts, while cooling to
around 5 degrees below average for the valleys.
High temperatures on Tuesday will range from the lower to mid 70s
near the coast to the mid 80s to mid 90s for the Inland Empire
with 109 to 113 for the lower deserts. High temperatures on
Thursday will range from the lower to mid 70s near the coast to
the 80s for the Inland Empire with 104 to 108 for the lower
deserts. Moderate HeatRisk will continue for the deserts through
Wednesday.
The marine layer will likely deepen late next week, allowing
marine layer low clouds to spread farther inland during the nights
and mornings.
&&
.AVIATION...
130500Z...Coast/Western Valleys...Low clouds based 800-1200 ft MSL
are pushing up to 15-20 miles inland. Cigs will be patchy through
the night. Patchy FG (vis less than 1SM) and BR (vis 1-5SM) to
reduce vis mainly for elevated coastal terrain and valleys east of
the I-15 corridor (in SD County). Scatter to coast 15-18z Sat.
Low clouds with similar bases return to the coast 02-05z Sun.
Mountains/Deserts...VFR conditions are expected through Saturday
with high clouds AOA 10 kft MSL.
&&
.MARINE...
No hazardous marine conditions are expected through Wednesday.
&&
.BEACHES...
Elevated surf and strong rip currents continue at area beaches into
next week. Surf of 3-6 feet and sets to 7 feet are expected at south-
facing beaches. San Diego County Surf will be slightly lower but,
hazardous swimming conditions with high rip current and longshore
current risk will still exist. See the Beach Hazards Statement for
more details.
&&
.SKYWARN...
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.
&&
.SGX WATCHES/WARNINGS/ADVISORIES...
CA...Beach Hazards Statement from 2 AM PDT Saturday through Monday
evening for Orange County Coastal Areas-San Diego County
Coastal Areas.
PZ...Beach Hazards Statement from 2 AM PDT Saturday through Monday
evening for Coastal Waters from San Mateo Point to the
Mexican Border and out to 10 nm.
&&
$$
PUBLIC...PG
AVIATION/MARINE/BEACHES...Westerink
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