The atmospheric river storm hitting Northern California is set to bring heavy rain to the San Francisco Bay Area on Tuesday, potentially triggering flooding. In the mountains, the National Weather ...

A powerful, atmospheric river-driven storm is hitting California today, bringing with it heavy rain, strong winds and feet of Sierra snow. The storm, which prompted a lengthy flood advisory for San ...

Rogers Creek Fault is Waiting By David Bolling With the nation’s focus on the catastrophic wildfires in Los Angeles, the last ...

In a statement, Contra Costa County Health Officer Dr. Ori Tzvieli on Tuesday revealed how fortunate the Martinez community was that afternoon, and how close the refinery fire was to becoming a ...

As the county’s largest department, Contra Costa Health (CCH) is a county-run integrated healthcare system providing medical care and a managed-care health plan for people with Medi-Cal.

CONTRA COSTA — Authorities on Wednesday identified two motorists who died in crashes in Contra Costa County earlier this month. A one-car wreck on northbound Interstate 680 on Monday killed 25 ...

The highest potential for naturally occurring hydrogen is in the Midcontinent Rift system, which runs through central parts ...

Contra Costa County health officials say the community near the Martinez Refining Company was fortunate when a fire broke out earlier this month, but they are urging precautions to prevent future ...

In a statement, Contra Costa County Health Officer Dr. Ori Tzvieli on Tuesday revealed how fortunate the Martinez community was that afternoon, and how close the refinery fire was to becoming a ...

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

The Gulf of Mexico is now called the Gulf of America for Google Maps users in the United States, keeping with the terms of President Trump's controversial executive order to rename the body of water.