textproduct: San Diego

SYNOPSIS

Not as hot this weekend with breezy conditions across the mountains and deserts. Temperatures will hold near average for the first half of the week as a troughing pattern lingers with a deeper marine layer. High pressure moves in by Wednesday into the latter half of next week, bringing a warming trend.

Updated Aviation and Marine Discussion for 06z TAF Package

An area of low pressure is moving into western Washington State today, bringing an open wave troughing pattern along the West Coast. This continues to bring greater onshore flow and subtle cooling to the region today with high temperatures a few degrees cooler than yesterday. The marine inversion is still strong, where low clouds will see intermittent clearing. Breezy west and south winds will occur over the desert slopes/passes into the deserts through this evening. Models show gusts primarily near 25-40 MPH, locally near 55 MPH in the San Gorgonio Pass.

As the low pressure system in the Pacific NW moves inland, we will see a few more degrees of cooling for inland areas for Sunday and Monday as reinforcing shortwave moves through to the north. Most areas will be near average with some inland valley locations near 5 degrees below normal as low clouds move into the coastal and western valley areas each night and morning. Highs in the 70s and 80s will occur across most areas with highs 95-100 degrees across the lower deserts.

By Wednesday, the troughing pattern to the north will shift further inland as a ridge of high pressure amplifies off the coast. This will bring warmer weather on Wednesday, with similar temperatures expected for the rest of the week as the system remains off the coast. We will continue to monitor how warm we become, but so far, NBM predictions has high temperatures around 5 to locally 10 degrees above normal for this time period.

AVIATION

070600Z...Coast/Valleys...Low clouds based 1800-2300 ft MSL have quickly spread about 20 miles inland this evening. Clouds are starting to spill into the Inland Empire and should fill the entire coastal basin by 09-10z. VIS 4-6SM in highest inland valleys (including the Inland Empire). Scatter out inland to the coast 16- 19z, though some areas along the coastline may not clear until the early afternoon. 20-30% chance for BKN cigs all day at KSAN. Low clouds move back inland starting 01-02z Mon with slightly lower bases.

Mountains/Deserts...VFR with SCT-BKN clouds AOA 20000ft MSL through Sunday morning. Southwest-west winds gusting 20-35 knots along desert slopes and locally into deserts this evening slowly diminish through tonight. Winds of similar intensity pick up again for the same areas Sunday afternoon. Gusts may exceed 40 kts through the Banning Pass. MOD up/downdrafts and pockets of LLWS in lee (north and east) of mountains.

MARINE

No hazardous marine conditions are expected through Wednesday night.

SKYWARN

Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.

SGX WATCHES/WARNINGS/ADVISORIES

CA...None. PZ...None.