Satellite imagery showing the transport of atmospheric water vapor reveals the atmospheric river lurching like a ghostly finger toward California from the central tropical Pacific Ocean.

While atmospheric rivers are essential to replenishing California's water supply, their unpredictability and intensity pose challenges for flood control and public safety. The California ...

The past six months have proven to be a tale of two Californias when it comes to atmospheric river events. While Northern ...

Map of Sierra Nevada in California showing how an atmospheric river develops. Most atmospheric rivers are weak and do not cause damage. In fact, they can provide much-needed rain or snow.