textproduct: San Diego

SYNOPSIS

Area temperatures will be up to 10 degrees below average through Thursday as an area of low pressure moves over the area. This pattern will bring night and morning low clouds for areas west of the mountains with breezy winds across the desert slopes and deserts each day. A troughing pattern will remain into the weekend and early next week, where temperatures will rise closer to normal.

..UPDATED AVIATION DISCUSSION

An area of low pressure is beginning to form near Seattle and Vancouver. This system will work its way southward through Thursday, bringing in cooler than average temperatures, breezy conditions across the mountains and deserts, and a healthier marine layer. Low clouds will fill in much of the coastal basin each night and morning with patchy fog on higher terrain. Models hint that the atmosphere may be moist enough to produce some areas of drizzle Wednesday morning within 10-15 miles of the coast.

Models pinpoint the low moving as far as Northern California by Thursday. This will bring temperatures down near 5 to 10 degrees below normal for inland areas. Chances continue to increase to see highs near 85 or cooler for areas of the High Desert, Inland Empire and Inland San Diego Co valleys on Wednesday and Thursday. Sea breeze winds will increase over desert passes and deserts as well each afternoon, primarily between 20 and 40 MPH.

The low lifts out of the State and into the Northern Rockies by Friday into the weekend. This will lead to subtle warming by Friday into Saturday as a quick and weak area of high pressure nudges into the region. High temperatures will respond by increasing slightly and emerging closer to normal by Saturday. Models are beginning to come into better agreement of a weaker area of low pressure moving over the area by early next week. This would begin to cool the region by a few degrees, giving us near to slightly below average temperatures once again.

AVIATION

160600Z...Coast/Valleys...Low clouds based around 2000-2500 feet MSL will continue to gradually move inland overnight, but are not expected to uniformly cover the inland coastal basin. Vis reduced far inland 1-5SM. Clouds scatter out by 16-18Z. Low clouds based similarly will move ashore after 03Z Wednesday eve.

Mountains/Deserts...Mostly clear and VFR conditions through Wednesday.

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.