The National Weather Service flash flood warning criteria in Charleston is changing. Learn about Base, Considerable and Catastrophic flash flood warnings.

The National Weather Service said a tsunami could arrive at 12:15 a.m. for the Monterey coastline and 12:40 a.m. for San Francisco. Up north in Crescent City, a tsunami could arrive as early as 10:35 ...

A powerful earthquake that struck off the coast of Russia has generated tsunami warnings and advisories for a broad section ...

Tsunami warnings have been issued in several countries after an 8.8-magnitude earthquake struck off the coast of Russia, with ...