Severe weather conditions are expected to disrupt holiday travel with heavy rain, snow and flood risks across the West Coast.

"Flooding is possible across the Northeast as heavy rain and snowmelt combine to rains river and stream levels," the NWS said ...

The flow of water through the planet’s nearly 3 million rivers is changing rapidly, with potentially drastic implications for ...

The interactive map is multiscale and reveals more rivers and streams as you zoom in. Rivers and streams are symbolized in two important ways. The thickness of the map’s river stroke reflects the ...