Area Forecast Discussion
Issued by NWS San Diego, CA
Issued by NWS San Diego, CA
218 FXUS66 KSGX 131528 AFDSGX Area Forecast Discussion National Weather Service San Diego CA 828 AM PDT Tue Aug 13 2024 .SYNOPSIS... Fair and seasonal weather will continue through the weekend. Areas of coastal low clouds will continue nights and mornings, extending into western valleys. Temperatures will remain around normal, followed by a warming trend next week. && .DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES... Coastal low clouds and fog gathered more uniformly this morning, but the cloud deck itself is quite thin so we`ll have fairly quick clearing today. A very similar situation is expected the rest of the week, but coastal low clouds should not be as prevalent or uniform later this week during the nights and mornings. Plan on lots of sunshine. Gusty westerly winds will blow through parts of the mountains and deserts through tonight. Top gusts in the windiest places, the usual spots through passes into adjacent deserts, will exceed 40 mph. Temperatures will be within a few degrees of normal through the rest of the week, with only minor variations day to day. A weak trough of low pressure over the Pacific Northwest will continue to press against a stubborn high pressure ridge over Texas for what looks like forever. This weekend, a trickle of monsoonal moisture begins to flow into SoCal. Initially, the moisture is insufficient for thunderstorms through the weekend, but eventually there might be enough moisture and instability for storms by Monday or Tuesday in the mountains and deserts. Early next week, the ridge imposes itself just a little more to bring a modest warming trend. && .AVIATION... 131530Z...Coast/Valleys...After morning clouds and fog clearing, skies will be VFR and mostly clear today. Low clouds with bases 800- 1000 feet MSL with tops to 1200 feet will develop earlier over KSAN/KCRQ after 03Z and after 07Z around KSNA gradually filling into western valleys overnight. Scatter out Wednesday 15-16Z. Mountains/Deserts...Clear with unrestricted VIS through Wednesday morning. && .MARINE... No hazardous marine conditions are expected through Saturday. && .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...MM AVIATION/MARINE...Suk