The storm poses significant dangers along the Santa Ana River bottom. "It can be very dangerous. It can sweep people away.

An intense storm could cause flooding and debris flows in areas burned by wildfires. Some residents have begun to evacuate.

Southern California's strongest atmospheric river storm of the winter is arriving Thursday, and it's expected to bring significant flooding to roads and a high risk of landslides. Here's what you need ...

Scientists using seismic data tracked groundwater levels beneath the L.A. area. They found heavy rains in 2023 boosted ...

An atmospheric river was set to begin pummeling Southern California with heavy rain on Thursday, prompting evacuations and school closures as officials warned about life-threatening flooding and ...

NASA scientists used satellite measurements to map out local subsidence and uplift across the Golden State, which plays into ...

The biggest storm of the winter, packing a firehose of rain across much of California, will trigger flooding, mudslides and road closures that may put lives and property at risk during the latter part ...

It was reported just after 3;30 p.m. on the northern bank of the Santa Ana River bottom near Market Street and Via Cerro ...

An atmospheric river is expected to hit California later this week, bringing heavy rain and wind to much of the state.

The peak of a severe storm was expected Thursday, with recent burn scar areas under evacuation orders and warnings.