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 and Friday. There is a 30 to 60 percent chance for a half inch of rainfall in the highlighted across 48 hours ending 5 AM Saturday morning.
There has been a slight uptick in thunderstorm chances as tropical moisture moves into central California Thursday into Friday. There is a 5 to 10 percent chance of thunderstorms in the Valley itself on Friday. The Sierra Nevada have a 5 to 20 percent chance combined and the Kern County desert and slopes have a 10 to 25 percent chance.
Thunderstorms will once again invade the Central California Interior later this week with increasing concerns of elevated fire danger. While the mountain (Sierra Nevada) thunderstorms have the potential of producing widespread heavy showers, the initial influx of moisture may allow for the possibility of mountain thunderstorms producing minimal precipitation and dry lightning as early as Wednesday.