Oak Glen, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

494
FXUS66 KSGX 262131
AFDSGX

Area Forecast Discussion
National Weather Service San Diego CA
131 PM PST Tue Nov 26 2024

.SYNOPSIS...
An influx of moisture associated with an atmospheric river in
Central California will shift southward tonight, bringing very light
showers to much of the region, with totals generally under 0.05". By
Wednesday afternoon, weak upper ridging builds in with drier and
warmer conditions prevailing through the weekend. A closed upper
level low moves into California early next week, although associated
moisture and rain chances look minimal at this point.

&&

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

Ample moisture and energy continues to flow into Central California
as a weakening atmospheric river (AR) is pushed southward by an
upper level trough moving into the Great Basin. Precipitation
chances spread down into Southern California this afternoon and
evening, although rainfall totals look mediocre at best given the
weakening AR. Currently, totals through Wednesday morning will be
less than 0.10" for most coastal and inland areas, with the
mountains and coastal slopes seeing totals closer to 0.15-0.40"
while areas east of the mountains remain dry. Snow levels will be
fairly high for this event, generally above 8300-9400ft through
Wednesday. Confidence is decreasing regarding noticeable
precipitation making it down to the San Diego County coast and
valleys, but should the rain make it this far south, timing will
be early Wednesday morning.

Outside of the rain, winds will be increasing in the mountains this
afternoon, peaking this evening and overnight with gusts up to 45
mph near the ridges, desert slopes, and mountain passes. Gusts up to
35-40 mph will spread to the deserts and Coachella Valley this
afternoon, and given the lack of rainfall expected on the eastern
sides of the mountains, periods of blowing dust and visibility
reductions will be possible. Winds weaken and any lingering rain
across the region will move out by late Wednesday morning.

With the departure of the AR, zonal flow settles in for the second
half of the week, with drier weather and temperatures slowly warming
to near normal or slightly above. By Saturday, weak upper ridging
builds in and temperatures reach 5-10 degrees above normal for the
end of November. Models continue to show an upper low off the West
Coast attempt to move inland this weekend, but recent trends have
strengthened the ridge, with the low and associated precipitation
falling apart prior to making it to California. At this time, the
warmer weather looks to hold with dry conditions continuing into
next week. Tuesday and beyond, there remains stark differences in
the models regarding the upper level pattern, with some showing
another low forming off the coast while others maintain the hot and
dry weather. Stay tuned.

&&

.AVIATION...
262100Z....Coast/Valleys/Mountains...SCT-BKN clouds across the
Inland Empire and Orange County through 00Z. Cigs will lower to 1500-
2500 ft MSL 00Z-04Z Wednesday and spread south into San Diego
County. SCT -SHRA will move from northwest to southeast generally 23-
12Z, with additional isolated light showers diminishing by 18Z Wed.
CIGS/vis may briefly drop to around 800 ft/4 SM in SHRA. Coastal
mountain slopes will be obscured in clouds/fog through Wednesday
morning. SCT conditions expected 18-22Z Wed starting in the Inland
Empire and clearing to the south and west. 40 to 50 percent chance
of cigs 1500-2000 ft MSL lingering in San Diego county Thursday
afternoon.

Winds will become northeast on the San Bernardino mountain foothills
starting 14Z Wednesday. Northeasterly winds will reach the Inland
Empire around 18Z. Gusts up to 35 kt possible on the San Bernardino
mtn foothills into the Inland Empire.

Desert Mountain Slopes/Deserts...SCT-BKN high clouds with bases AOA
10000 ft MSL and unrestricted vis through Wednesday morning. Breezy
southwest winds along the desert slopes and into the deserts will
continue through 15Z Wed. Peak gusts of gusts to 25-45 kt expected.
MOD up/downdrafts and areas of LLWS possible over and NE/E of the
mountains.

&&

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

&&

.BEACHES...
A 2-3 ft south swell from 190 deg at 17-20 sec will produce
elevated surf of 3-5 with with sets to 6 feet on south facing
beaches Wednesday and Thursday. Strong rip currents can be
expected. Swell and surf will begin to slowly lower on Friday.

&&

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


&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...None.

&&

$$

PUBLIC...Zuber
AVIATION/MARINE...CO