Tornadoes don't just appear out of nowhere. They need the perfect storm to form. It starts when warm, humid air clashes with cold air, which can generate a powerful thunderstorm known as a supercell.

Once a tornado touches the ground, its strength is estimated by meteorologists using the Enhanced Fujita (EF) scale, ranging from EF-0, the weakest tornado with winds estimated between 65 and ...

Tornadoes don't just appear out of nowhere. They need the perfect storm to form. It starts when warm, humid air clashes with cold air, which can generate a powerful thunderstorm known as a supercell.

As spring turns into summer and the days get hotter, we will begin to see more thunderstorms, and chances are, severe weather. Here's a short explainer on how tornadoes form.

There may be a limit to how well researchers can understand and predict these storms, Markowski says. “When it comes tornadoes, I think we’re kind of butting up against chaos.” ...

In 1994, a host of scientists hoping to understand where tornadoes got their rotation began a multiyear campaign named Verification of the Origins of Rotation in Tornadoes Experiment, or VORTEX.

In the last issue, we began our look at tornadoes by looking at the first two of four theories on how they form: super cell ...

If that air becomes part of a tornado, the fingerprint can help researchers learn how the twister formed. The researchers also want to know if that information could help forecasters predict ...

However, on Monday night a tornado in Manitoba lasted for almost three hours, one of the longest-lasting documented tornadoes. To get tornadoes, you first need a thunderstorm.

A U.S. storm system that spawned a chain of deadly tornadoes over three days flattened homes and businesses, forced frightened residents in more than half a dozen states to take cover and left ...