Thunderstorms and drenching downpours triggered a flood warning for parts of the valley Monday evening.
The National Weather Service said the flood warning was for urban areas and small streams in north central Sacramento County including the city of Sacramento, extreme southwestern Placer County and east central Yolo County.
Those out and about were urged to be aware of ponding/standing water on highways, streets and underpasses as well as in low-lying areas and where there is poor drainage.
Drivers had some tough going at times, with many spinouts and several more serious accidents.
Bob Worl was rear-ended at an underpass on Sacramento's Highway 160 when a driver in front of him slammed on the brakes to avoid floodwater.
"The guy in front of me slammed on his brakes and I slammed on mine," Worl said. "Everybody's fine."
Barty Keomanywong of Sacramento suddenly lost control of her car on westbound Highway 50.