The National Weather Service is predicting a mild Santa Ana, or offshore, wind for southern California Thursday through Sunday. The wind will not be strong, but the relative humidity in some areas will be in the single digits along with temperatures around 100, at least in the Riverside area.

The new Santa Ana Threat Index that was rolled out September 17 only lists some “Marginal” to “Moderate” Santa Ana conditions on Thursday and Friday. That could change, of course.