How Tornadoes Are Important Video
What is a Tornado? The Dr. Binocs Show - Best Learning Videos For Kids - Peekaboo Kidz How Tornadoes Are ImportantAll rights reserved.
Scientists probe the mysteries of violent twisters.
How tornadoes form and how they die is not fully understood, yet scientists probing those mysteries—and aiming to improve warning systems—have pinpointed key risk factors. A tornado, or Tornaoes, is a violently rotating column of air that extends between the Earth's surface and a cloud, usually a cumulonimbus cloud.
Large tornadoes usually last longer—around 30 minutes, Brooks adds. The most powerful twisters have wind speeds of more than miles kilometers per hour, which can rip buildings off their foundations. They can be more than two miles 3. The more common tornadoes have wind speeds of less than miles kilometers per hour, are about feet 76 meters across, and travel only a few miles before they dissipate.
Tornadoes kill an average of 60 people a year in the U. See " Interactive: Forces of Nature. The most intense tornadoes emerge from what are called supercell thunderstorms.
Navigation menu
For such a storm to form, you first "need the ingredients for a regular thunderstorm," says Brooks. Those ingredients include warm moisture near the surface and relatively cold, dry air above. A supercell requires more: winds that increase in strength and change direction with height. The supercell churns high in the air and, in about 30 percent of cases, it leads to the formation of a tornado below it.
Order Free Preparedness Materials
This happens when air descending from the supercell causes rotation near the ground. Even then, "we still don't know why some thunderstorms create tornadoes while others don't," tornado-chaser Tim Samaras said in early Samaras was a scientist and National Geographic grantee who was killed by a twister on May 31,in El Reno, Oklahoma.
Brooks says scientists believe strong changes in winds in the first Hkw of the atmosphere and high relative humidity are important for the How Tornadoes Are Important of tornadoes. He adds that there also needs to be a downdraft in just the right part of the storm.]
Matchless topic, it is very interesting to me))))
I think, that you are not right. I suggest it to discuss. Write to me in PM.
I do not know.