Building high pressure over central California during the early week will cause temperatures to rise to the upper 90s Tuesday and Wednesday. Areas of the San Joaquin Valley are expected to experience Moderate HeatRisk both days. This level of heat can affect those sensitive to heat, such as older adults (65+), infants, athletes, outdoor workers, those without effective cooling, and those with chronic diseases.
An influx of moisture in the latter part of the week is expected to bring showers and thunderstorms to central California resulting in a Marginal Risk (5 to 15 percent) for Excessive Rainfall this Thursday. There is a 20 to 40 percent chance for one quarter of an inch of rainfall in the Kern County Mountains across 24 hours ending 5 AM Friday morning.
With the influx of moisture later this week comes a 10 to 15 percent chance for thunderstorms for the Kern Desert and Mountains as well as in the higher elevations of the Sierra Nevada on Thursday. There is also a 5 to 10 percent chance extending into the San Joaquin Valley and the Sierra Foothills.