Sacramento, CA – Northern California residents may experience isolated thunderstorms today as a weather alert highlights a 10-20% chance of storm activity across the region. According to the National Weather Service (NWS) in Sacramento, the storms are most likely to occur between the morning and early evening. Potential impacts include brief heavy rain, small hail, lightning, and gusty winds. Cities such as Sacramento, Chico, Stockton, and Yuba City fall within the affected area.