Atmospheric rivers are massive plumes of moisture carried across the sky that can dump heavy rains or snow over land. Atmospheric rivers generally form in tropical regions, where warm temperatures can ...

The San Antonio River downtown is drained and cleaned every two years to remove debris, sediment buildup and invasive species ...

The water pressure of a river can cut deep into a riverbed. Sediments from the riverbed are carried downstream, creating a deep, narrow channel. This process, known as downcutting, represents the ...