Nitrate levels in central Iowa rivers are unusually high for January, prompting early water treatment and raising concerns ...

For this installment of "From the Archives," we answer questions about the Balcones Escarpment and the Balcones Fault ...

Wintry conditions across a broad section of US led President Trump to approve federal emergency disaster declarations as the storm system impacted millions.

Hundreds of thousands of people are without power as heavy snow and ice has downed power lines across the country.

The monster winter storm that New York City and the Tri-State Area have been bracing for is here, as heavy snow and sleet ...

As millions of Americans hunker down for the winter storm, 19 states and Washington, D.C., have declared states of emergency.

Dave Parker with ARDOT said he discourages drivers from getting on the roads.

Snow accumulations through Monday morning could top a foot.

Reporters from across the NPR Network are covering the storm in each state — the impact and how officials are responding.