The ridge of high pressure over the 4-corners area of the Desert SW is staying in place thru the weekend. It is doing several things: compressing the marine layer, producing lighter coastal winds, pumping in mid-level muggy air, and driving the inland heat wave.
We’ve already seen 108 degrees in Paso Robles yesterday, today was 100 and the weekend looks to features highs around 105.
There will be a threat of shower and thunderstorms in the mountains and deserts of eastern CA and some scattered activity in the LA and Ventura county mauntains but not much of a local risk.
At the beaches a low marine cloud deck is thick and producing cool beach temps but because the deck is so low the coastal valleys look to stay in the mid 70s and lower 80s thru the weekend.
The ridge starts to migrate east on Monday and by Wednesday temps will be back to near normal everywhere with a deeper intrusion of the marine layer into the coastal valleys.