Huge tornadoes discovered on the Sun

(PhysOrg.com) -- Solar tornadoes several times as wide as the Earth can be generated in the solar atmosphere, say researchers in the UK. A solar tornado was discovered using the Atmospheric Imaging Assembly telescope on board ...

NWS: NE Mississippi tornado was highest-rated EF-5

(AP) -- At least one of the massive tornadoes that killed hundreds across the South this week was a devastating EF-5 storm, according to an analysis Friday by the National Weather Service, which suspects several others also ...

Researchers still play big role in storm shelter development

A flower grows from a crack in the concrete slab where a home once stood in Joplin, Mo. One year ago, an EF-5 tornado chewed through the town killing 161 people. Today, there are many new homes under construction, peppered ...

Increasing tornado outbreaks—is climate change responsible?

Tornadoes and severe thunderstorms kill people and damage property every year. Estimated U.S. insured losses due to severe thunderstorms in the first half of 2016 were $8.5 billion. The largest U.S. impacts of tornadoes result ...

Space tornadoes power the atmosphere of the Sun

Mathematicians at the University of Sheffield, as part of an international team, have discovered tornadoes in space which could hold the key to power the atmosphere of the Sun to millions of kelvin.

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Tornado

A tornado is a violent, dangerous, rotating column of air which is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. Tornadoes come in many sizes but are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debris and dust.

Most tornadoes have wind speeds between 40 mph (64 km/h) and 110 mph (177 km/h), are approximately 250 feet (75 m) across, and travel a few miles (several kilometers) before dissipating. Some attain wind speeds of more than 300 mph (480 km/h), stretch more than a mile (1.6 km) across, and stay on the ground for dozens of miles (more than 100 km).

Although tornadoes have been observed on every continent except Antarctica, most occur in the United States. They also commonly occur in southern Canada, south-central and eastern Asia, east-central South America, Southern Africa, northwestern and southeast Europe, western and southeastern Australia, and New Zealand.

This text uses material from Wikipedia, licensed under CC BY-SA