716
FXUS66 KSGX 290738
AFDSGX

Area Forecast Discussion
National Weather Service San Diego CA
1238 AM PDT Wed Jul 29 2026

.SYNOPSIS...
Strengthening high pressure will bring warming into the weekend
with Saturday high temperatures 8 to 12 degrees above average for
inland areas. For the early and middle of next week, there will
be slight cooling of high temperatures with slowly increasing
humidity for inland areas. There will be widespread extreme
HeatRisk for the lower deserts for Sunday through Tuesday with
widespread moderate or greater HeatRisk for most areas for
Thursday through Monday except for the beaches and for mountain
elevations above 7500 feet. There will be night and morning low
clouds for coastal areas.

&&

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

.SHORT TERM (Today through Friday)...
Not much change in high temperatures is expected for today. High
temperatures for most areas will be within a few degrees of
average with the deserts around 5 degrees above average. High
temperatures for today will range from the mid to upper 70s near
the coast to the 90s for the Inland Empire with 110 to 114 for the
lower deserts.

High temperatures on Thursday will warm a few degrees with
additional warming on Friday of a few to around 5 degrees with
the greater warming on Friday for the inland valleys, inland
Orange County, and mountain elevations below 5000 feet. High
temperatures on Friday will around 5 degrees above average near
the coast and 5 to 10 degrees above average for inland areas. High
temperatures on Friday will range from the mid 70s to lower 80s
near the coast to the upper 90s to 108 for the Inland Empire with
114 to 118 for the lower deserts.

&&

.LONG TERM (Saturday through Tuesday)...
High pressure over the southwest states will be strongest on
Saturday, then will slowly weaken into the middle of next week,
but with increasing lower level moisture and humidity for the
early and middle portion of next week for inland areas.

High pressure will be strongest over southern California on
Saturday. High temperatures on Saturday will be a few degrees
warmer than Friday, around 8 to 12 degrees above average for the
mountains, deserts, and inland valleys. High temperatures on
Saturday will range from around 80 near the coast to the upper 90s
to 108 for the Inland Empire with 116 to 120 for the lower
deserts.

High temperatures will cool a few degrees on Sunday and cool a few
to around 5 degrees on Monday with the greatest cooling on Monday
in the San Diego County valleys. Not much change is expected on
Tuesday. High temperatures on Monday and Tuesday will range from a
few degrees above average near the coast to 5 to 10 degrees above
average for the mountains and deserts. High temperatures for
Monday and Tuesday will range from the mid 70s to around 80 near
the coast to the mid 90s to 105 for the Inland Empire with 114 to
118 for the lower deserts. There will be widespread extreme
HeatRisk for the lower deserts for Sunday through Tuesday.

&&

.AVIATION...
290600Z....Coast/Valleys...Low clouds based 900-1200ft MSL are
moving inland and will continue to spread northward through 14z.
Slight chance (20%) of CIGs at KONT intermittently between 12z and
16z. VIS 3-5SM where stratus nears higher coastal terrain and in
the western valleys. Low clouds clearing to the coast 16-18z, with
stratus potentially lingering at beaches through the afternoon.
Low clouds redevelop around 00z Thur, moving inland by 01-03z with
similar or slightly lower bases.

Mountains/Deserts...Mostly SKC with unrestricted VIS through
Wednesday. Intermittent high cu AOA 20,000ft possible.

&&

.MARINE...
No hazardous marine weather is expected through Sunday.

&&

.BEACHES...
A south swell from 200 degrees of 3-4 ft feet at 17 seconds will
produce surf of 3-6 feet with sets to 7 feet Wednesday. Strong rip
currents are expected along with minor tidal overflow during the
evening high tide.

Wednesday evening, a 4-5 ft swell from 160-180 degrees with a period
of 13-15 seconds associated with Hurricane Genevieve will arrive.
Surf of 5-9 ft is expected on south facing beaches in Orange County
with surf around 3-6 ft elsewhere. Surf will peak on Thursday and
Friday, when the swell direction shifts to 180-190 degrees. Strong
rip and longshore currents will create dangerous swimming conditions
at most area beaches. In addition to the high surf, evening high
tides will be above 6 ft this week. The combination of high tides
and surf increases the risk of coastal flooding. The swell, period,
and tides are expected to decrease over the weekend. Further
information can be found in the High Surf Advisory.

&&

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

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...Beach Hazards Statement through Wednesday afternoon for Orange
     County Coastal Areas-San Diego County Coastal Areas.

     Coastal Flood Advisory from 5 PM Wednesday to 3 AM PDT Saturday
     for Orange County Coastal Areas-San Diego County Coastal
     Areas.

     High Surf Advisory from 5 PM Wednesday to 5 PM PDT Saturday for
     Orange County Coastal Areas-San Diego County Coastal Areas.

     Heat Advisory from 10 AM Friday to 8 PM PDT Sunday for Orange
     County Coastal Areas-San Diego County Coastal Areas.

     Extreme Heat Warning from 10 AM Thursday to 8 PM PDT Sunday for
     Apple and Lucerne Valleys-Coachella Valley-Riverside County
     Mountains-San Bernardino and Riverside County Valleys-The
     Inland Empire-San Diego County Deserts-San Diego County
     Mountains-San Gorgonio Pass near Banning.

     Extreme Heat Warning from 10 AM Friday to 8 PM PDT Sunday for
     Orange County Inland Areas-San Diego County Valleys-Santa
     Ana Mountains and Foothills.

     Heat Advisory from 10 AM Thursday to 8 PM PDT Sunday for San
     Bernardino County Mountains.

PZ...None.

&&

$$

PUBLIC...17
AVIATION/MARINE/BEACHES...Zuber

NWS San Diego (SGX) Office