696
FXUS66 KSGX 131924
AFDSGX

Area Forecast Discussion
National Weather Service San Diego CA
1224 PM PDT Mon Apr 13 2026

.SYNOPSIS...
Scattered showers are possible through this evening across much of
the region. Elevated winds will occur across the mountains and
deserts through this evening as well. Drier weather will then take
hold the rest of the week as a subtle warming trend occurs.
Elevated winds will return to the region by Thursday into Friday.

&&

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

An area of low pressure over the southern half of California will
continue to move eastward today. This system will continue the
chance for scattered showers across the region. Most areas will
see a mix of clouds and sun with these showers, though the chance
for lower deserts seeing any measurable rainfall is below 15%.
West winds will continue to remain elevated as the trough remains
in the vicinity. West winds will gust near 25-40 MPH across most
mountain and desert areas, with local gusts near 50 MPH in
mountain passes. Satellite imagery shows a drying trend offshore.
This trend will push onto land through the afternoon with more
peaks of sun from north to south into the evening. The weather
system will push further inland over the desert southwest by
Tuesday. This will lead to all areas warming about 10 degrees than
that of today, with highs near to slightly below normal. Remnant
clouds may stick around for areas west of the mountains in the
morning with most areas clearing by the afternoon.

Slight warming with dry and mostly sunny conditions will occur on
Wednesday as an area of low pressure tumbles into the Pacific
Northwest. This system will traverse the Great Basin by Thursday,
ushering in a broad troughing pattern. The system will stay far
enough to the north to not provide any major impacts, but high
temperatures will be up to 5 degrees cooler with elevated west
winds across the mountains and the deserts. Winds will turn
offshore late Thursday night into Friday as the system passes
further inland, so we will continue to monitor how strong these
winds will be which will be dependent on the exact location that
this low pressure system goes. Subtle warming looks to occur by
the weekend, though a large trough offshore could make things
interesting as we head into the latter part of April.

&&

.AVIATION...
131730Z...Coasts/Valleys...Multiple SCT-BKN cloud layers above 2500
ft MSL expected today. SCT -SHRA could drop cigs to 2000 feet at
times. -SHRA will taper off NW to SE around 00Z Tue. Cigs below 3000
ft unlikely for the coast overnight, with 40-50% chance in the
valleys, especially near mountain foothills 08-14Z Tue. Any
lingering low clouds should SCT by 18Z Tue.

.Mountains/Deserts...West to southwest winds gusting 35-45 kt
through passes and on to desert slopes through 10Z Tue. MOD
up/downdrafts in lee of mountains. SCT SHRA/SNSH possible through
00Z Tue in the mountains. Areas of terrain obscuration below 6000
feet MSL on west/south facing slopes.

&&

.MARINE...
Isolated westerly wind gusts will exceed 20 kt this afternoon and
evening, generating choppy conditions. No hazardous conditions are
expected Tuesday through 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...APR
AVIATION/MARINE...CO

NWS San Diego (SGX) Office