Devastating, life-threatening floods have already started in some states as an atmospheric river causes heavy rainfall.

State rivers shows moderate flooding, with the Ohio River reaching a level that has only been seen once in the last 28 years. See where the flooding will reach.

The most recent risk assessment, outlined in maps published by the California Geological Survey, illustrate the devastation ...

California lands are classified as either moderate ... The fire hazard severity zone maps are like flood zone maps, and they ...

Mudslide risk could increase in Southern California burn areas if trees are cleared, public lands advocate says.

The risk of flooding from a major tsunami may be greater than many realized along Monterey County's coastline, California officials said in new study.

In a worst-case tsunami, parts of Alameda, Oakland and Berkeley could be flooded up to an 18-foot elevation, California officials said in new study.

Two months after deadly wildfires razed thousands of homes in the Los Angeles area, Cal Fire has released a new map showing ...

The California Geological Survey recently released new maps showing that potential tsunamis increase the threat of flooding in Alameda, Monterey, and San Mateo counties, along with other coastal ...

Tornadoes and thunderstorms are sweeping across areas of the South and Midwest of the United States, leaving a trail of ...

The California Geological Survey recently released new maps showing that potential tsunamis increase the threat of flooding in Alameda, Monterey, and San Mateo counties, along with other coastal ...