Area Forecast Discussion
Issued by NWS San Diego, CA
Issued by NWS San Diego, CA
066 FXUS66 KSGX 150943 AFDSGX Area Forecast Discussion National Weather Service San Diego CA 243 AM PDT Wed Oct 15 2025 .SYNOPSIS... Residual showers are expected to end this morning. It will then be dry with a warming trend through Saturday continuing into Sunday for the deserts. Early next week will be a few degrees cooler as high pressure weakens. && .DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES... .SHORT TERM (Today through Friday)... A low pressure system will continue to move inland through the Great Basin today. For Friday and Saturday, there will be high pressure aloft over southern California with a large cutoff low pressure system centered well off the coast of northern Baja. Residual showers over the southern California coastal waters moving into southwestern California are expected to end during this morning. High temperatures are expected to warm through Saturday with the warming continuing into Sunday for the deserts. The greatest warming is expected on Thursday. With the warming, high temperatures on Friday will be a few degrees below average to as much as 4 to 8 degrees below average for the mountains and high desert. High temperatures on Friday will range from the lower to mid 70s near the coast to the upper 70s to mid 80s for the Inland Empire with the mid to upper 80s for the lower deserts. && .LONG TERM (Saturday through Tuesday)... The warming trend will continue into Saturday and into Sunday for the deserts with high temperatures on Saturday a few degrees above average for the coast and valleys and a few degrees below average for the deserts into the mountains. For early next week, there is much larger spread in the evolution of the pattern along the coasts of California and Baja. There should be at least a few degrees of cooling for Monday and Tuesday. && .AVIATION... 150930Z...ISO-SCT -SHRA through about 16Z, with accompanying bases 1500-2500 feet MSL, otherwise bases 3500-6000 feet MSL. Some higher terrain obscured this morning in BR/FG. Gradual clearing this morning, by 14Z vcnty KSNA/KONT, by 17Z vcnty KSAN. FEW-SCT clouds near KSAN tonight into Thursday. && .MARINE... No hazardous marine conditions are expected through Sunday. && .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...17 AVIATION/MARINE...MM