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A tornado is a violently rotating column of air in contact with the surface and a cumuliform cloud base. Tornado formation is caused by the stretching and aggregating/merging of environmental and/or storm-induced vorticity that tightens into an intense vortex. There are various ways this may come about and thus various forms and sub-forms of ...
For a tornado to form in this manner, a rear-flank downdraft enters the center of the mesocyclone from the back. Cold air, being denser than warm air, is able to penetrate the updraft. The combination of the updraft and downdraft completes the development of a tornado. Tornadoes that form in this method are often violent and can last over an ...
A tornado is a violently rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, ...
The warm, moist air is two of the three ingredients needed to create thunderstorms. A potent cold front associated with a storm tracking into the Midwest will serve as the third ingredient and ...
"It was spinning and that's one of the ingredients for a tornado." The warnings were in effect until 10:30 a.m. and the advisory urged residents to seek shelter with the possibility of pea-sized hail.
An EF4 tornado with wind speeds ranging from 166 to 200 mph can cause devastating damage. Most to all walls on a well-built house will likely collapse, and high-rise buildings can sustain ...
Tornadoes exist on the microscale or low end of the mesoscale gamma domain. The cycle begins when a strong thunderstorm develops a rotating mesocyclone a few miles up in the atmosphere, becoming a supercell. As rainfall in the storm increases, it drags with it an area of quickly descending air known as the rear flank downdraft (RFD). This ...
Outbreak produced the Candlestick Park tornado, which was an extremely violent F5 tornado or tornado family that killed 58 people and traveled 202.5 mi (325.9 km) across Mississippi and Alabama. It is one of the longest such paths on record and one of only four official F5 tornadoes to hit Mississippi.