Joplin tornado of May 22, 2011 was deadliest single U.S. tornado since 1950 and costliest tornado in world history. See videos. Learn how Joplin is rebuilding.

Waterspouts are tornadoes that form over water. They are typically weaker than tornadoes on land, but they can cause destruction.

Tropical Storm Alberto developed in the western Atlantic, off the South Carolina coast, yesterday. It’ll probably head out to sea.

The FCC, Department of Homeland Security, National Weather Service and other agencies collaborated to create this system.

The Deep South is experiencing the least amount of rainfall, which is typical in a La Niña pattern. Will the drought conditions persist or end this summer?

The latest report from the National Research Council suggests that number and capability of satellites used to monitor Earth is about to hit a steep decline.

Earlier today, a rare tornado struck about 60 kilometers (40 miles) northeast of Tokyo. Dozens of people were injured, and one person died.

La Niña, which has been one of the many drivers to our weather for the past few years, has finally dissipated. Could an El Niño develop later this year?

A line of thunderstorms across the US Midwest on April 28 knocked over a tent at a St. Louis sports bar, killing one man and injuring at least 100 people.

Tornado sirens are meant to save lives, and they have saved lives. But the six people killed by a tornado in Oklahoma on April 14 never heard a siren.