textproduct: San Diego

SYNOPSIS

Showers have ended this morning but skies will remain mostly cloudy today. Winds will continue to weaken throughout the day. Fair, dry and warmer weather is expected over the weekend, and will likely persist through next week.

DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE

SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...

This morning...Showers have ended but we remain under the influence of broad troughing aloft. A weak shortwave trough embedded in the mean cyclonic flow aloft will bring widespread mid and high clouds over a scattered layer of low clouds that is mostly pushed up against the coastal foothills. The westerly winds continue to weaken and the windiest locations have reported strongest gusts of 35-45 mph.

Temperatures will be about 5-15 degrees lower than normal today; only a few places at lower elevations may achieve 60+ degrees, Weak high pressure aloft develops for this weekend, and there is also an offshore pressure gradient that develops tonight and lasts through Saturday. That will produce areas of gusty easterly winds through the peninsular mountains locally into inland valleys. That will boost the warming trend west of the mountains. The offshore flow weakens a little on Sunday, but the warming trend continues into Monday. High temperatures will be in the 60s Saturday, 70s Sunday, and a few spots should hit 80 degrees Monday. Skies will have periods of high clouds, but the sun will shine through most of the time. Our upper ridge of high pressure over California will amplify some next week. A plume of moisture tries to approach SoCal next Wednesday, but now nearly all model guidance steers that moisture into northern and central California. Confidence is nearly 100% that SoCal will stay dry through at least Friday. It will be a little cooler Tuesday through Thursday as weak onshore flow returns, but still well above normal. The ridge appears to amplify later next week, which if it does, could produce widespread temperatures in the 80s in the valleys, and lower 90s in the low desert on Friday.

AVIATION

201800Z...Any lingering rain showers have fully moved out of the area, and VFR conditions will prevail through the TAF period. Aside from FEW-SCT cu based around 4000-6000ft MSL and SCT-BKN high clouds near 20,000ft, mostly clear conditions expected. Winds have largely decreased as well, with weak offshore winds expected in major mountain passes Saturday afternoon.

MARINE

Winds over the waters continue to wane today, with gusts generally 15 kts or less expected this afternoon. Seas are decreasing as well, with the Small Craft Advisory allowed to expire. No marine hazards are expected through Tuesday.

BEACHES

Elevated swell continues to wane today, with surf expected to remain below 7 feet. Thus, the High Surf Advisory that previously extended into this evening has been cancelled. High surf of 3 to 5 feet remains possible today, which can still lead to areas of strong rip currents.

SKYWARN

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

SGX WATCHES/WARNINGS/ADVISORIES

CA...None.

PZ...None.