Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean and flow through the sky, ...

The greater Los Angeles area has long been the subject of intense seismographic monitoring. A network of highly sensitive ...

E-bikes have exploded in popularity in San Francisco, but given their speed, they shouldn't be treated the same as normal ...

More than a dozen atmospheric rivers dumped rainfall on California in 2023 but replenished only 25 percent of the water lost from aquifers since 2006.

Mudslides are dangerous torrents that are usually referred to by geologists and first responders as debris flows. They have ...

An atmospheric river slammed into the Golden State overnight and is causing dangerous conditions across the entire region.

An atmospheric river has arrived in the Bay Area, with moderate to heavy rain expected to continue, along with increasing winds and thunderstorm chances.

"If you decide to stay inside your property in an evacuated area, debris from the burn scar areas and storm may impede roads and we may not be able to reach you," said Los Angeles County Sheriff ...

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 ...

Areas charred by last month's wildfires in Southern California now face a new threat from a powerful, but fast-moving Pacific ...

Officials in California distributed sandbags, prepositioned rescue swimmers and told residents to have their go-bags ready as ...

The weather phenomena are common for California winters, but they could cause dangerous debris flows or mudslides in recently ...