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

The Ohio River Basin stretches from Pennsylvania ... there is still much to be done. The satellite’s high-resolution view of water levels and extent means there is a vast ocean of data that ...

The storm brought heavy rain and high-elevation snowfall to Northern California over the weekend, and a similar one is ...

A 2022 satellite photo shows a shimmering trail of dried, chemically-enriched mud left behind by a torrent of wastewater that ...