Especially in the Fall, we occasionally get what are called "Santa Anas." Normally, there is an "off shore breeze" or influence, which means the ocean provides cooler and more humidity than you'd expect for several miles from the beach (at least until mountains block it). But when there is a strong "HIGH" over the desert, this overwhelms that normality and we get air from the desert forced toward the ocean, an "east wind." It brings the desert to the beach, temps go way up (even triple digits) and low humidity (even single digit). It usually only lasts a couple of days but nearly all of the 25 million southern California residents are not use to this and don't like it.... AND it tends to bring fires. Those fires can be horrible, driving by high winds that can toss sparks literally for miles.
We had a couple of days of this earlier.... today is a break... we get another for Thursday and Friday. Thank God for AC.