Under California's Sierra Nevada mountains, a slow yet powerful force will change the entirety of the Earth's crust there.

Meteorologists are warning of road closures and dangerous travel conditions for some parts of California later this week when a winter storm hits. So far this season, California's snowpack in the ...

California braced for the arrival of a massive storm on Wednesday, evacuating residents in areas at risk of mudslides and ...

California’s snowpack is now 85% of average, with more snow in the northern Sierra and less in the south. Amid warming ...