A soggy Sunday turned into a white-knuckle drive across parts of inland Northern California, where a flood advisory stayed in effect as steady rain led to minor flooding and reports of mud and rock slides in foothill communities. The alert flagged the likelihood of standing water in low-lying neighborhoods and on underpasses, creating slick, hazardous driving conditions through the afternoon and evening. Local officials urged residents to plan extra travel time and to avoid driving through flooded streets altogether.
Where the advisory applies and when
The National Weather Service in Sacramento issued the Flood Advisory at 5:54 a.m. Sunday and said it would remain in effect until 5:45 p.m. PST. According to NWS Sacramento, the advisory covers Butte, Nevada, Plumas, Sierra, Tehama and Yuba counties and warns of rises in small streams and ponding in poor-drainage areas.
Rain totals, slides and small-stream rises
Local law-enforcement agencies reported mud and rock slides within the advisory area early Sunday, and forecasters said rainfall totals already ranged from about 1 to 3.5 inches in places with another 3 to 6 inches possible. That combination increases the chance of minor creek rises and urban ponding in towns such as Chico, Oroville and Downieville, according to Merced Sun-Star.
Turn Around, Don't Drown
Federal flood-safety messaging does not mince words: never drive into floodwaters. The National Weather Service cautions that just six inches of fast-moving water can knock a person off their feet and that about 12 inches of rushing water can carry away most cars. The agency urges motorists to "Turn Around, Don't Drown" rather than trying to cross flooded roadways. See the National Weather Service for details.
Hydroplaning and what to do if you begin to slide
Hydroplaning risk rises with vehicle speed, tire tread depth and standing water, so safety experts urge drivers to slow down and steer clear of large puddles. If your vehicle starts to slide, the basic advice is to ease off the accelerator and steer gently until traction returns. Tire makers recommend the same steps to regain control, per Michelin.
How to keep tabs on conditions
Before heading out, check local media and road resources for closures and flood reports. Caltrans' QuickMap lists chain controls and highway closures, and 511 provides live road conditions. For regional context on the broader Flood Watch that extends through next Friday, see reporting from KCRA and follow county emergency accounts for immediate street-level alerts.
If you encounter a flooded road, turn around and take a different route. It only takes a small amount of moving water to become deadly. For life-threatening emergencies, call 911 and follow instructions from local public-safety officials.
