Bonita, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

453
FXUS66 KSGX 020554
AFDSGX

Area Forecast Discussion
National Weather Service San Diego CA
954 PM PST Sun Nov 1 2026

.SYNOPSIS...
Widespread light rain will continue this morning, becoming more
scattered during the day before tapering off this afternoon and
evening. Dry and warmer for the remainder of the week with highs
near to a few degrees below normal each day.

&&

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

...UPDATED AVIATION DISCUSSION...

As of 10 AM, the warm sector of the storm has pushed east and we
are now advecting relatively colder air aloft. Looking at GFS 18z
forecast soundings, there is some background instability only up to
700 mbs. The axis of the trough to the north is passing east of the
coastal basin, making showers increasingly more isolated this
afternoon through this evening throughout the coastal basin, with
perhaps a few leftover showers in SD County tonight before
completely drying out region-wide overnight into Monday. Given the
relatively shallow instability profiles, any showers that do develop
will be mainly light, with only a few brief showers of moderate
intensity.

Monday will begin with cold morning temperatures, especially in the
inland valleys (40s), high desert (mid/upper 30s) and mountain
valleys (20s/30s). Otherwise, expect sunny skies across the region
with light N/NE offshore flow over the mountains and deserts during
the day, then increasing mid and high level clouds during the
evening as another trough moves north of the region.

With the weak trough moving through Tuesday, some light rain or
drizzle cannot be ruled out for coastal and inland SD County though
the one model (ECMWF ENS) picking up on this possibility seems to
be backing off.

As a result of this trough and another trough Thursday, high
temperatures will remain rather steady Tue-Thu: mid- 70s across
the coastal basin (including the IE), upper 60s in the high
desert, 50s in the mountains and around 80F in the low deserts.

Friday through the weekend, an upper ridge builds over the Western
US. While the intensity of the ridge over SoCal remains uncertain,
the thermal trough likely sets up at the coast or a few miles
inland, increasing high temperatures to the low to mid-80s in the
coastal basin and lower deserts, while the mountains and high
deserts remain cool.

&&

.AVIATION...
010530...Generally VFR conditions expected through the period.
Scattered cloud cover based 4000-6500 ft MSL banked against the
mountains and through San Diego County. ISO -SHRA will continue to
taper off in San Diego Co and then end by 09Z, with clouds gradually
scattering out overnight. Brief, intermittent MVFR conditions with
cigs dipping down to 2500-3000 ft MSL are possible through 09Z,
unlikely after.

&&

.MARINE...
Weak winds expected through Tuesday morning, followed by more
elevated onshore winds Tuesday afternoon and evening, with gusts in
the outer coastal waters potentially exceeding 20 knots.

&&

.BEACHES...
Southwesterly swell (3 ft at 15 seconds from 200 degrees) will bring
elevated surf through Monday, with breaking wave heights 3 to 6
feet. Surf combined with a high tide near 6 ft will continue the
potential for minor tidal overflow during the Monday afternoon high
tide around 3:30 PM.

Tides are expected to increase for the end of the week, with tides
reaching 7 ft as early as Friday. Tides will peak over the weekend
into early next week around 7.5 ft.

Reminder, tides mentioned have been corrected to reflect the current
trends in actual tide observations.

&&

.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 Monday afternoon for Orange
     County Coastal Areas-San Diego County Coastal Areas.

PZ...None.

&&

$$

PUBLIC...CO
AVIATION/MARINE/BEACHES...CSP