Area Forecast Discussion
Issued by NWS San Diego, CA
Issued by NWS San Diego, CA
175 FXUS66 KSGX 300953 AFDSGX Area Forecast Discussion National Weather Service San Diego CA 253 AM PDT Thu May 30 2024 .SYNOPSIS... Generally seasonal weather will prevail into next week with minor day to day changes. Warmer today with not much change for Friday, slightly cooler for Saturday through Monday, then warming for Tuesday through Thursday of next week to a few degrees above average near the coast to around 10 degrees above average for the deserts. The marine layer will mostly fluctuate between 2000 and 2500 feet through Monday with night and morning coastal low clouds extending inland into portions of the valleys, then may become slightly shallower for the middle of next week. There will be gusty southwest to west winds for the mountains and deserts for each late afternoon through late evening. && .DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES... .SHORT TERM (Today through Saturday)... The marine layer is around 2000 feet deep with satellite imagery showing coastal low clouds covering all of the Orange County coastal plain and extending inland in San Diego across the western half of the valleys. High temperatures today will be a few degrees warmer than Wednesday at lower elevations to 5 to 10 degrees warmer for the mountains, mostly in the 80s for the Inland Empire and 100 to 106 for the lower deserts. Not much change is expected for high temperatures on Friday with coastal low clouds spreading a little farther into the valleys. A few degrees cooler for Saturday with coastal low clouds spreading into portions of the inland valleys. There will be gusty southwest to west winds for the mountains and deserts for each late afternoon through late evening. The strongest winds are expected on Saturday with the stronger gusts to 25 to 35 mph with gusts in the northern Coachella Valley below the San Gorgonio Pass to 40 to 50 mph. && .LONG TERM (Sunday through Wednesday)... Not much change for Sunday and Monday with high temperatures a few degrees above average for the deserts and a few degrees below average for the coast and valleys, in the upper 70s to mid 80s for the Inland Empire and in the upper 90s to 104 for the lower deserts. Night and morning coastal low clouds will extend inland into portions of the inland valleys. For Tuesday and Wednesday, high pressure aloft will bring warming with the marine layer becoming a little shallower with night and morning coastal low clouds not extending not quite as far into the inland valleys. For Wednesday, high temperatures will be around average near the coast to 5 to 10 degrees above average for the deserts, into the mid 80s to mid 90s for the Inland Empire and 102 to 108 for the lower deserts. && .AVIATION... 300930Z...Coast/Valleys...Low clouds with bases 1000-1400 feet MSL and tops to 1600 feet will continue to push locally into inland valleys through 14Z. Inland vis 0-5SM. Scatter out 16-20Z from inland to coast, but with only partial or intermittent clearing at the immediate coast. Low clouds to push ashore and inland after 01Z with similar bases/vis and coverage into early Friday. Mountains/Deserts...Clear skies with unrestricted vis today and tonight. && .MARINE... No hazardous marine conditions are expected through Monday. && .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