Hundreds of environmental and conservancy groups were rallying to save the Ohio River Basin from toxic pollution.

The Amite River Basin Commission recently outlined 13 major projects in its first master plan. Of the costs estimated, the plan could reach more than $3.8 billion. Bayou Manchac improvements: Cost ...

The cost of the Amite River Basin Commission master plan could top $3.8 billion.

San Bernardino Valley, in partnership withWestern Water, City of Riverside Public Utilities, and San Bernardino Valley Water Conservation District, proudly marked the completion of the Santa Ana River ...

The Santa Ana winds and the accompanying wildfires have been a part of the ecosystems of the Los Angeles basin for over 5,000 years, since native peoples moved into the area.

The Clay Fire was reported near the Santa Ana River, along Van Buren Boulevard and Pedley Road, according to Cal Fire. The fire is about 3 miles away from Riverside Municipal Airport.

What direction do the Santa Ana winds blow? Santa Ana winds move clockwise, in the opposite direction to the usual flow that moves moist air from the Pacific Ocean onshore.

To understand how the Santa Ana winds form, Mr. Hall said, imagine the Great Basin as “a big bowl,” topographically speaking, its sides lined with holes representing mountain passes.

Santa Ana winds are one of the nation's most notorious wind events and an ongoing weather hazard in Southern California.