Sacramento County is in for a long, soggy stretch, with a flood advisory staying in place through Friday morning as a steady storm parks over the Valley. The advisory flags the risk of ponding and minor flooding in low-lying neighborhoods and spots with poor drainage. Drivers should plan for slower, slick commutes and pockets of standing water at intersections and underpasses.
According to the National Weather Service in Sacramento, the advisory was issued at 5:39 a.m. Wednesday and runs until 6:30 a.m. PST Friday. The office said local law enforcement reported heavy rain and that between 0.5 and 1 inch of rain has already fallen across parts of the county, with another 0.1 to 0.2 inches expected. That amount is enough to create urban ponding and standing water in roadway low spots, the advisory notes.
Where flooding is most likely
The advisory specifically calls out pockets of Sacramento, including Parkway-South Sacramento, La Riviera, Rosemont, Cal Expo, Arden-Arcade and the area around the Sacramento Zoo, as places where standing water is most likely to form. Local reporting from the Modesto Bee highlights clogged drains and leaf buildup as factors that will worsen ponding in some neighborhoods.
People who live or work in the named areas should be ready for localized street flooding and consider delaying nonessential trips while rainfall rates are highest.
Turn Around, Don't Drown: driving tips
Federal safety guidance is blunt about flooded roads: do not drive through them. According to the National Weather Service, as little as six inches of moving water can knock an adult off their feet and roughly 12 inches of rushing water can float a small car, so motorists should "Turn Around, Don't Drown" rather than risk crossing a flooded street.
Hydroplaning risk jumps with speed, water depth and worn tires. AAA recommends easing off the accelerator, keeping the steering wheel steady and waiting for the tires to regain traction before braking gently if you begin to slide.
Travel, road checks and local resources
A broader Flood Watch for the Valley, foothills and nearby Sierra remains in place through Friday, meaning additional rounds of rain could create new pockets of urban flooding later in the week, per KCRA. If you have to travel, officials say to check Caltrans' QuickMap for highway closures and 511 for live road conditions, and to follow Sacramento County's emergency updates for street-level or shelter information.
Emergency responders urge drivers to obey barricades and avoid attempting crossings where water covers the road, since the roadbed can be washed out under that water.
Residents are encouraged to keep an eye on forecasts and alerts through official channels, and if conditions become life-threatening to follow evacuation instructions from local authorities. For local preparedness tools and the latest neighborhood-level information, visit Sacramento County's Sacramento Ready page, and call 911 for emergencies.
